mirror of
https://github.com/prometheus/prometheus.git
synced 2024-12-25 21:54:10 -08:00
bbd92b85da
For yacc generated parsers there is the convention to capitalize the names of item types provided by the lexer, which makes it easy to distinct lexer tokens (capitalized) from nonterminal symbols (not capitalized) in language grammars. This convention is also followed by the (non generated) go compiler (see https://golang.org/pkg/go/token/#Token). Part of the parser rewrite described in #6256. Signed-off-by: Tobias Guggenmos <tguggenm@redhat.com>
1765 lines
48 KiB
Go
1765 lines
48 KiB
Go
// Copyright 2015 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package promql
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import (
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"math"
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"strings"
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"testing"
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"time"
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"github.com/pkg/errors"
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"github.com/prometheus/common/model"
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"github.com/prometheus/prometheus/pkg/labels"
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"github.com/prometheus/prometheus/util/testutil"
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)
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var testExpr = []struct {
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input string // The input to be parsed.
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expected Expr // The expected expression AST.
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fail bool // Whether parsing is supposed to fail.
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errMsg string // If not empty the parsing error has to contain this string.
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}{
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// Scalars and scalar-to-scalar operations.
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{
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input: "1",
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expected: &NumberLiteral{1},
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}, {
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input: "+Inf",
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expected: &NumberLiteral{math.Inf(1)},
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}, {
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input: "-Inf",
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expected: &NumberLiteral{math.Inf(-1)},
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}, {
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input: ".5",
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expected: &NumberLiteral{0.5},
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}, {
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input: "5.",
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expected: &NumberLiteral{5},
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}, {
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input: "123.4567",
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expected: &NumberLiteral{123.4567},
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}, {
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input: "5e-3",
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expected: &NumberLiteral{0.005},
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}, {
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input: "5e3",
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expected: &NumberLiteral{5000},
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}, {
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input: "0xc",
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expected: &NumberLiteral{12},
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}, {
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input: "0755",
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expected: &NumberLiteral{493},
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}, {
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input: "+5.5e-3",
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expected: &NumberLiteral{0.0055},
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}, {
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input: "-0755",
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expected: &NumberLiteral{-493},
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}, {
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input: "1 + 1",
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expected: &BinaryExpr{ADD, &NumberLiteral{1}, &NumberLiteral{1}, nil, false},
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}, {
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input: "1 - 1",
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expected: &BinaryExpr{SUB, &NumberLiteral{1}, &NumberLiteral{1}, nil, false},
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}, {
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input: "1 * 1",
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expected: &BinaryExpr{MUL, &NumberLiteral{1}, &NumberLiteral{1}, nil, false},
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}, {
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input: "1 % 1",
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expected: &BinaryExpr{MOD, &NumberLiteral{1}, &NumberLiteral{1}, nil, false},
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}, {
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input: "1 / 1",
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expected: &BinaryExpr{DIV, &NumberLiteral{1}, &NumberLiteral{1}, nil, false},
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}, {
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input: "1 == bool 1",
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expected: &BinaryExpr{EQL, &NumberLiteral{1}, &NumberLiteral{1}, nil, true},
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}, {
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input: "1 != bool 1",
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expected: &BinaryExpr{NEQ, &NumberLiteral{1}, &NumberLiteral{1}, nil, true},
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}, {
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input: "1 > bool 1",
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expected: &BinaryExpr{GTR, &NumberLiteral{1}, &NumberLiteral{1}, nil, true},
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}, {
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input: "1 >= bool 1",
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expected: &BinaryExpr{GTE, &NumberLiteral{1}, &NumberLiteral{1}, nil, true},
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}, {
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input: "1 < bool 1",
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expected: &BinaryExpr{LSS, &NumberLiteral{1}, &NumberLiteral{1}, nil, true},
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}, {
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input: "1 <= bool 1",
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expected: &BinaryExpr{LTE, &NumberLiteral{1}, &NumberLiteral{1}, nil, true},
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}, {
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input: "+1 + -2 * 1",
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expected: &BinaryExpr{
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Op: ADD,
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LHS: &NumberLiteral{1},
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RHS: &BinaryExpr{
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Op: MUL, LHS: &NumberLiteral{-2}, RHS: &NumberLiteral{1},
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},
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},
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}, {
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input: "1 + 2/(3*1)",
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expected: &BinaryExpr{
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Op: ADD,
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LHS: &NumberLiteral{1},
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RHS: &BinaryExpr{
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Op: DIV,
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LHS: &NumberLiteral{2},
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RHS: &ParenExpr{&BinaryExpr{
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Op: MUL, LHS: &NumberLiteral{3}, RHS: &NumberLiteral{1},
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}},
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},
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},
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}, {
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input: "1 < bool 2 - 1 * 2",
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expected: &BinaryExpr{
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Op: LSS,
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ReturnBool: true,
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LHS: &NumberLiteral{1},
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RHS: &BinaryExpr{
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Op: SUB,
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LHS: &NumberLiteral{2},
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RHS: &BinaryExpr{
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Op: MUL, LHS: &NumberLiteral{1}, RHS: &NumberLiteral{2},
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},
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},
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},
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}, {
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input: "-some_metric",
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expected: &UnaryExpr{
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Op: SUB,
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Expr: &VectorSelector{
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Name: "some_metric",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
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},
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},
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},
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}, {
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input: "+some_metric",
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expected: &UnaryExpr{
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Op: ADD,
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Expr: &VectorSelector{
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Name: "some_metric",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
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},
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},
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},
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}, {
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input: "",
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fail: true,
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errMsg: "no expression found in input",
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}, {
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input: "# just a comment\n\n",
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fail: true,
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errMsg: "no expression found in input",
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}, {
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input: "1+",
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fail: true,
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errMsg: "no valid expression found",
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}, {
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input: ".",
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fail: true,
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errMsg: "unexpected character: '.'",
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}, {
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input: "2.5.",
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fail: true,
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errMsg: "could not parse remaining input \".\"...",
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}, {
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input: "100..4",
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fail: true,
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errMsg: "could not parse remaining input \".4\"...",
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}, {
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input: "0deadbeef",
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fail: true,
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errMsg: "bad number or duration syntax: \"0de\"",
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}, {
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input: "1 /",
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fail: true,
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errMsg: "no valid expression found",
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}, {
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input: "*1",
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fail: true,
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errMsg: "no valid expression found",
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}, {
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input: "(1))",
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fail: true,
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errMsg: "could not parse remaining input \")\"...",
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}, {
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input: "((1)",
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fail: true,
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errMsg: "unclosed left parenthesis",
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}, {
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input: "999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999",
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fail: true,
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errMsg: "out of range",
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}, {
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input: "(",
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fail: true,
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errMsg: "unclosed left parenthesis",
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}, {
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input: "1 and 1",
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fail: true,
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errMsg: "set operator \"and\" not allowed in binary scalar expression",
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}, {
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input: "1 == 1",
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fail: true,
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errMsg: "parse error at char 7: comparisons between scalars must use BOOL modifier",
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}, {
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input: "1 or 1",
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fail: true,
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errMsg: "set operator \"or\" not allowed in binary scalar expression",
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}, {
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input: "1 unless 1",
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fail: true,
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errMsg: "set operator \"unless\" not allowed in binary scalar expression",
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}, {
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input: "1 !~ 1",
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fail: true,
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errMsg: "could not parse remaining input \"!~ 1\"...",
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}, {
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input: "1 =~ 1",
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fail: true,
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errMsg: "could not parse remaining input \"=~ 1\"...",
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}, {
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input: `-"string"`,
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fail: true,
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errMsg: `unary expression only allowed on expressions of type scalar or instant vector, got "string"`,
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}, {
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input: `-test[5m]`,
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fail: true,
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errMsg: `unary expression only allowed on expressions of type scalar or instant vector, got "range vector"`,
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}, {
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input: `*test`,
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fail: true,
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errMsg: "no valid expression found",
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}, {
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input: "1 offset 1d",
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fail: true,
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errMsg: "offset modifier must be preceded by an instant or range selector",
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}, {
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input: "a - on(b) ignoring(c) d",
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fail: true,
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errMsg: "parse error at char 11: no valid expression found",
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},
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// Vector binary operations.
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{
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input: "foo * bar",
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expected: &BinaryExpr{
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Op: MUL,
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LHS: &VectorSelector{
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Name: "foo",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
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},
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},
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RHS: &VectorSelector{
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Name: "bar",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
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},
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},
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VectorMatching: &VectorMatching{Card: CardOneToOne},
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},
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}, {
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input: "foo == 1",
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expected: &BinaryExpr{
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Op: EQL,
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LHS: &VectorSelector{
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Name: "foo",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
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},
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},
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RHS: &NumberLiteral{1},
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},
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}, {
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input: "foo == bool 1",
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expected: &BinaryExpr{
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Op: EQL,
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LHS: &VectorSelector{
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Name: "foo",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
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},
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},
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RHS: &NumberLiteral{1},
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ReturnBool: true,
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},
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}, {
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input: "2.5 / bar",
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expected: &BinaryExpr{
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Op: DIV,
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LHS: &NumberLiteral{2.5},
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RHS: &VectorSelector{
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Name: "bar",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
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},
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},
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},
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}, {
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input: "foo and bar",
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expected: &BinaryExpr{
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Op: LAND,
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LHS: &VectorSelector{
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Name: "foo",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
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},
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},
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RHS: &VectorSelector{
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Name: "bar",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
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},
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},
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VectorMatching: &VectorMatching{Card: CardManyToMany},
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},
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}, {
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input: "foo or bar",
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expected: &BinaryExpr{
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Op: LOR,
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LHS: &VectorSelector{
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Name: "foo",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
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},
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},
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RHS: &VectorSelector{
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Name: "bar",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
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},
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},
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VectorMatching: &VectorMatching{Card: CardManyToMany},
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},
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}, {
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input: "foo unless bar",
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expected: &BinaryExpr{
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Op: LUNLESS,
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LHS: &VectorSelector{
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Name: "foo",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
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},
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},
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RHS: &VectorSelector{
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Name: "bar",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
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},
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},
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VectorMatching: &VectorMatching{Card: CardManyToMany},
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},
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}, {
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// Test and/or precedence and reassigning of operands.
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input: "foo + bar or bla and blub",
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expected: &BinaryExpr{
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Op: LOR,
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LHS: &BinaryExpr{
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Op: ADD,
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LHS: &VectorSelector{
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Name: "foo",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
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},
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},
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RHS: &VectorSelector{
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Name: "bar",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
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},
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},
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VectorMatching: &VectorMatching{Card: CardOneToOne},
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},
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RHS: &BinaryExpr{
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Op: LAND,
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LHS: &VectorSelector{
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Name: "bla",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bla"),
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},
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},
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RHS: &VectorSelector{
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Name: "blub",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "blub"),
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},
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},
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VectorMatching: &VectorMatching{Card: CardManyToMany},
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},
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VectorMatching: &VectorMatching{Card: CardManyToMany},
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},
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}, {
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// Test and/or/unless precedence.
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input: "foo and bar unless baz or qux",
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expected: &BinaryExpr{
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Op: LOR,
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LHS: &BinaryExpr{
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Op: LUNLESS,
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LHS: &BinaryExpr{
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Op: LAND,
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LHS: &VectorSelector{
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Name: "foo",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
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},
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},
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RHS: &VectorSelector{
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Name: "bar",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
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},
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},
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VectorMatching: &VectorMatching{Card: CardManyToMany},
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},
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RHS: &VectorSelector{
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Name: "baz",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "baz"),
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},
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},
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VectorMatching: &VectorMatching{Card: CardManyToMany},
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},
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RHS: &VectorSelector{
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Name: "qux",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "qux"),
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},
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},
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VectorMatching: &VectorMatching{Card: CardManyToMany},
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},
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}, {
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// Test precedence and reassigning of operands.
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input: "bar + on(foo) bla / on(baz, buz) group_right(test) blub",
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expected: &BinaryExpr{
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Op: ADD,
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LHS: &VectorSelector{
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Name: "bar",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
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},
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},
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RHS: &BinaryExpr{
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Op: DIV,
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LHS: &VectorSelector{
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Name: "bla",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bla"),
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},
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},
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RHS: &VectorSelector{
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Name: "blub",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "blub"),
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},
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},
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VectorMatching: &VectorMatching{
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Card: CardOneToMany,
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MatchingLabels: []string{"baz", "buz"},
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On: true,
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Include: []string{"test"},
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},
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},
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VectorMatching: &VectorMatching{
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Card: CardOneToOne,
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MatchingLabels: []string{"foo"},
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On: true,
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},
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},
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}, {
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input: "foo * on(test,blub) bar",
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expected: &BinaryExpr{
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Op: MUL,
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LHS: &VectorSelector{
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Name: "foo",
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LabelMatchers: []*labels.Matcher{
|
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
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},
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},
|
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RHS: &VectorSelector{
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Name: "bar",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
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},
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},
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VectorMatching: &VectorMatching{
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Card: CardOneToOne,
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MatchingLabels: []string{"test", "blub"},
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On: true,
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},
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},
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}, {
|
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input: "foo * on(test,blub) group_left bar",
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expected: &BinaryExpr{
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Op: MUL,
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LHS: &VectorSelector{
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Name: "foo",
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LabelMatchers: []*labels.Matcher{
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
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},
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},
|
|
RHS: &VectorSelector{
|
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Name: "bar",
|
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LabelMatchers: []*labels.Matcher{
|
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mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
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},
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},
|
|
VectorMatching: &VectorMatching{
|
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Card: CardManyToOne,
|
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MatchingLabels: []string{"test", "blub"},
|
|
On: true,
|
|
},
|
|
},
|
|
}, {
|
|
input: "foo and on(test,blub) bar",
|
|
expected: &BinaryExpr{
|
|
Op: LAND,
|
|
LHS: &VectorSelector{
|
|
Name: "foo",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
RHS: &VectorSelector{
|
|
Name: "bar",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
|
|
},
|
|
},
|
|
VectorMatching: &VectorMatching{
|
|
Card: CardManyToMany,
|
|
MatchingLabels: []string{"test", "blub"},
|
|
On: true,
|
|
},
|
|
},
|
|
}, {
|
|
input: "foo and on() bar",
|
|
expected: &BinaryExpr{
|
|
Op: LAND,
|
|
LHS: &VectorSelector{
|
|
Name: "foo",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
RHS: &VectorSelector{
|
|
Name: "bar",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
|
|
},
|
|
},
|
|
VectorMatching: &VectorMatching{
|
|
Card: CardManyToMany,
|
|
MatchingLabels: []string{},
|
|
On: true,
|
|
},
|
|
},
|
|
}, {
|
|
input: "foo and ignoring(test,blub) bar",
|
|
expected: &BinaryExpr{
|
|
Op: LAND,
|
|
LHS: &VectorSelector{
|
|
Name: "foo",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
RHS: &VectorSelector{
|
|
Name: "bar",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
|
|
},
|
|
},
|
|
VectorMatching: &VectorMatching{
|
|
Card: CardManyToMany,
|
|
MatchingLabels: []string{"test", "blub"},
|
|
},
|
|
},
|
|
}, {
|
|
input: "foo and ignoring() bar",
|
|
expected: &BinaryExpr{
|
|
Op: LAND,
|
|
LHS: &VectorSelector{
|
|
Name: "foo",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
RHS: &VectorSelector{
|
|
Name: "bar",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
|
|
},
|
|
},
|
|
VectorMatching: &VectorMatching{
|
|
Card: CardManyToMany,
|
|
MatchingLabels: []string{},
|
|
},
|
|
},
|
|
}, {
|
|
input: "foo unless on(bar) baz",
|
|
expected: &BinaryExpr{
|
|
Op: LUNLESS,
|
|
LHS: &VectorSelector{
|
|
Name: "foo",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
RHS: &VectorSelector{
|
|
Name: "baz",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "baz"),
|
|
},
|
|
},
|
|
VectorMatching: &VectorMatching{
|
|
Card: CardManyToMany,
|
|
MatchingLabels: []string{"bar"},
|
|
On: true,
|
|
},
|
|
},
|
|
}, {
|
|
input: "foo / on(test,blub) group_left(bar) bar",
|
|
expected: &BinaryExpr{
|
|
Op: DIV,
|
|
LHS: &VectorSelector{
|
|
Name: "foo",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
RHS: &VectorSelector{
|
|
Name: "bar",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
|
|
},
|
|
},
|
|
VectorMatching: &VectorMatching{
|
|
Card: CardManyToOne,
|
|
MatchingLabels: []string{"test", "blub"},
|
|
On: true,
|
|
Include: []string{"bar"},
|
|
},
|
|
},
|
|
}, {
|
|
input: "foo / ignoring(test,blub) group_left(blub) bar",
|
|
expected: &BinaryExpr{
|
|
Op: DIV,
|
|
LHS: &VectorSelector{
|
|
Name: "foo",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
RHS: &VectorSelector{
|
|
Name: "bar",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
|
|
},
|
|
},
|
|
VectorMatching: &VectorMatching{
|
|
Card: CardManyToOne,
|
|
MatchingLabels: []string{"test", "blub"},
|
|
Include: []string{"blub"},
|
|
},
|
|
},
|
|
}, {
|
|
input: "foo / ignoring(test,blub) group_left(bar) bar",
|
|
expected: &BinaryExpr{
|
|
Op: DIV,
|
|
LHS: &VectorSelector{
|
|
Name: "foo",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
RHS: &VectorSelector{
|
|
Name: "bar",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
|
|
},
|
|
},
|
|
VectorMatching: &VectorMatching{
|
|
Card: CardManyToOne,
|
|
MatchingLabels: []string{"test", "blub"},
|
|
Include: []string{"bar"},
|
|
},
|
|
},
|
|
}, {
|
|
input: "foo - on(test,blub) group_right(bar,foo) bar",
|
|
expected: &BinaryExpr{
|
|
Op: SUB,
|
|
LHS: &VectorSelector{
|
|
Name: "foo",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
RHS: &VectorSelector{
|
|
Name: "bar",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
|
|
},
|
|
},
|
|
VectorMatching: &VectorMatching{
|
|
Card: CardOneToMany,
|
|
MatchingLabels: []string{"test", "blub"},
|
|
Include: []string{"bar", "foo"},
|
|
On: true,
|
|
},
|
|
},
|
|
}, {
|
|
input: "foo - ignoring(test,blub) group_right(bar,foo) bar",
|
|
expected: &BinaryExpr{
|
|
Op: SUB,
|
|
LHS: &VectorSelector{
|
|
Name: "foo",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
RHS: &VectorSelector{
|
|
Name: "bar",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
|
|
},
|
|
},
|
|
VectorMatching: &VectorMatching{
|
|
Card: CardOneToMany,
|
|
MatchingLabels: []string{"test", "blub"},
|
|
Include: []string{"bar", "foo"},
|
|
},
|
|
},
|
|
}, {
|
|
input: "foo and 1",
|
|
fail: true,
|
|
errMsg: "set operator \"and\" not allowed in binary scalar expression",
|
|
}, {
|
|
input: "1 and foo",
|
|
fail: true,
|
|
errMsg: "set operator \"and\" not allowed in binary scalar expression",
|
|
}, {
|
|
input: "foo or 1",
|
|
fail: true,
|
|
errMsg: "set operator \"or\" not allowed in binary scalar expression",
|
|
}, {
|
|
input: "1 or foo",
|
|
fail: true,
|
|
errMsg: "set operator \"or\" not allowed in binary scalar expression",
|
|
}, {
|
|
input: "foo unless 1",
|
|
fail: true,
|
|
errMsg: "set operator \"unless\" not allowed in binary scalar expression",
|
|
}, {
|
|
input: "1 unless foo",
|
|
fail: true,
|
|
errMsg: "set operator \"unless\" not allowed in binary scalar expression",
|
|
}, {
|
|
input: "1 or on(bar) foo",
|
|
fail: true,
|
|
errMsg: "vector matching only allowed between instant vectors",
|
|
}, {
|
|
input: "foo == on(bar) 10",
|
|
fail: true,
|
|
errMsg: "vector matching only allowed between instant vectors",
|
|
}, {
|
|
input: "foo and on(bar) group_left(baz) bar",
|
|
fail: true,
|
|
errMsg: "no grouping allowed for \"and\" operation",
|
|
}, {
|
|
input: "foo and on(bar) group_right(baz) bar",
|
|
fail: true,
|
|
errMsg: "no grouping allowed for \"and\" operation",
|
|
}, {
|
|
input: "foo or on(bar) group_left(baz) bar",
|
|
fail: true,
|
|
errMsg: "no grouping allowed for \"or\" operation",
|
|
}, {
|
|
input: "foo or on(bar) group_right(baz) bar",
|
|
fail: true,
|
|
errMsg: "no grouping allowed for \"or\" operation",
|
|
}, {
|
|
input: "foo unless on(bar) group_left(baz) bar",
|
|
fail: true,
|
|
errMsg: "no grouping allowed for \"unless\" operation",
|
|
}, {
|
|
input: "foo unless on(bar) group_right(baz) bar",
|
|
fail: true,
|
|
errMsg: "no grouping allowed for \"unless\" operation",
|
|
}, {
|
|
input: `http_requests{group="production"} + on(instance) group_left(job,instance) cpu_count{type="smp"}`,
|
|
fail: true,
|
|
errMsg: "label \"instance\" must not occur in ON and GROUP clause at once",
|
|
}, {
|
|
input: "foo + bool bar",
|
|
fail: true,
|
|
errMsg: "bool modifier can only be used on comparison operators",
|
|
}, {
|
|
input: "foo + bool 10",
|
|
fail: true,
|
|
errMsg: "bool modifier can only be used on comparison operators",
|
|
}, {
|
|
input: "foo and bool 10",
|
|
fail: true,
|
|
errMsg: "bool modifier can only be used on comparison operators",
|
|
},
|
|
// Test Vector selector.
|
|
{
|
|
input: "foo",
|
|
expected: &VectorSelector{
|
|
Name: "foo",
|
|
Offset: 0,
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
}, {
|
|
input: "foo offset 5m",
|
|
expected: &VectorSelector{
|
|
Name: "foo",
|
|
Offset: 5 * time.Minute,
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
}, {
|
|
input: `foo:bar{a="bc"}`,
|
|
expected: &VectorSelector{
|
|
Name: "foo:bar",
|
|
Offset: 0,
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, "a", "bc"),
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo:bar"),
|
|
},
|
|
},
|
|
}, {
|
|
input: `foo{NaN='bc'}`,
|
|
expected: &VectorSelector{
|
|
Name: "foo",
|
|
Offset: 0,
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, "NaN", "bc"),
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
}, {
|
|
input: `foo{a="b", foo!="bar", test=~"test", bar!~"baz"}`,
|
|
expected: &VectorSelector{
|
|
Name: "foo",
|
|
Offset: 0,
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, "a", "b"),
|
|
mustLabelMatcher(labels.MatchNotEqual, "foo", "bar"),
|
|
mustLabelMatcher(labels.MatchRegexp, "test", "test"),
|
|
mustLabelMatcher(labels.MatchNotRegexp, "bar", "baz"),
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
}, {
|
|
input: `{`,
|
|
fail: true,
|
|
errMsg: "unexpected end of input inside braces",
|
|
}, {
|
|
input: `}`,
|
|
fail: true,
|
|
errMsg: "unexpected character: '}'",
|
|
}, {
|
|
input: `some{`,
|
|
fail: true,
|
|
errMsg: "unexpected end of input inside braces",
|
|
}, {
|
|
input: `some}`,
|
|
fail: true,
|
|
errMsg: "could not parse remaining input \"}\"...",
|
|
}, {
|
|
input: `some_metric{a=b}`,
|
|
fail: true,
|
|
errMsg: "unexpected identifier \"b\" in label matching, expected string",
|
|
}, {
|
|
input: `some_metric{a:b="b"}`,
|
|
fail: true,
|
|
errMsg: "unexpected character inside braces: ':'",
|
|
}, {
|
|
input: `foo{a*"b"}`,
|
|
fail: true,
|
|
errMsg: "unexpected character inside braces: '*'",
|
|
}, {
|
|
input: `foo{a>="b"}`,
|
|
fail: true,
|
|
// TODO(fabxc): willingly lexing wrong tokens allows for more precise error
|
|
// messages from the parser - consider if this is an option.
|
|
errMsg: "unexpected character inside braces: '>'",
|
|
}, {
|
|
input: "some_metric{a=\"\xff\"}",
|
|
fail: true,
|
|
errMsg: "parse error at char 15: invalid UTF-8 rune",
|
|
}, {
|
|
input: `foo{gibberish}`,
|
|
fail: true,
|
|
errMsg: "expected label matching operator but got }",
|
|
}, {
|
|
input: `foo{1}`,
|
|
fail: true,
|
|
errMsg: "unexpected character inside braces: '1'",
|
|
}, {
|
|
input: `{}`,
|
|
fail: true,
|
|
errMsg: "vector selector must contain label matchers or metric name",
|
|
}, {
|
|
input: `{x=""}`,
|
|
fail: true,
|
|
errMsg: "vector selector must contain at least one non-empty matcher",
|
|
}, {
|
|
input: `{x=~".*"}`,
|
|
fail: true,
|
|
errMsg: "vector selector must contain at least one non-empty matcher",
|
|
}, {
|
|
input: `{x!~".+"}`,
|
|
fail: true,
|
|
errMsg: "vector selector must contain at least one non-empty matcher",
|
|
}, {
|
|
input: `{x!="a"}`,
|
|
fail: true,
|
|
errMsg: "vector selector must contain at least one non-empty matcher",
|
|
}, {
|
|
input: `foo{__name__="bar"}`,
|
|
fail: true,
|
|
errMsg: "metric name must not be set twice: \"foo\" or \"bar\"",
|
|
},
|
|
// Test matrix selector.
|
|
{
|
|
input: "test[5s]",
|
|
expected: &MatrixSelector{
|
|
Name: "test",
|
|
Offset: 0,
|
|
Range: 5 * time.Second,
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "test"),
|
|
},
|
|
},
|
|
}, {
|
|
input: "test[5m]",
|
|
expected: &MatrixSelector{
|
|
Name: "test",
|
|
Offset: 0,
|
|
Range: 5 * time.Minute,
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "test"),
|
|
},
|
|
},
|
|
}, {
|
|
input: "test[5h] OFFSET 5m",
|
|
expected: &MatrixSelector{
|
|
Name: "test",
|
|
Offset: 5 * time.Minute,
|
|
Range: 5 * time.Hour,
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "test"),
|
|
},
|
|
},
|
|
}, {
|
|
input: "test[5d] OFFSET 10s",
|
|
expected: &MatrixSelector{
|
|
Name: "test",
|
|
Offset: 10 * time.Second,
|
|
Range: 5 * 24 * time.Hour,
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "test"),
|
|
},
|
|
},
|
|
}, {
|
|
input: "test[5w] offset 2w",
|
|
expected: &MatrixSelector{
|
|
Name: "test",
|
|
Offset: 14 * 24 * time.Hour,
|
|
Range: 5 * 7 * 24 * time.Hour,
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "test"),
|
|
},
|
|
},
|
|
}, {
|
|
input: `test{a="b"}[5y] OFFSET 3d`,
|
|
expected: &MatrixSelector{
|
|
Name: "test",
|
|
Offset: 3 * 24 * time.Hour,
|
|
Range: 5 * 365 * 24 * time.Hour,
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, "a", "b"),
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "test"),
|
|
},
|
|
},
|
|
}, {
|
|
input: `foo[5mm]`,
|
|
fail: true,
|
|
errMsg: "bad duration syntax: \"5mm\"",
|
|
}, {
|
|
input: `foo[0m]`,
|
|
fail: true,
|
|
errMsg: "duration must be greater than 0",
|
|
}, {
|
|
input: `foo[5m30s]`,
|
|
fail: true,
|
|
errMsg: "bad duration syntax: \"5m3\"",
|
|
}, {
|
|
input: `foo[5m] OFFSET 1h30m`,
|
|
fail: true,
|
|
errMsg: "bad number or duration syntax: \"1h3\"",
|
|
}, {
|
|
input: `foo["5m"]`,
|
|
fail: true,
|
|
}, {
|
|
input: `foo[]`,
|
|
fail: true,
|
|
errMsg: "missing unit character in duration",
|
|
}, {
|
|
input: `foo[1]`,
|
|
fail: true,
|
|
errMsg: "missing unit character in duration",
|
|
}, {
|
|
input: `some_metric[5m] OFFSET 1`,
|
|
fail: true,
|
|
errMsg: "unexpected number \"1\" in offset, expected duration",
|
|
}, {
|
|
input: `some_metric[5m] OFFSET 1mm`,
|
|
fail: true,
|
|
errMsg: "bad number or duration syntax: \"1mm\"",
|
|
}, {
|
|
input: `some_metric[5m] OFFSET`,
|
|
fail: true,
|
|
errMsg: "unexpected end of input in offset, expected duration",
|
|
}, {
|
|
input: `some_metric OFFSET 1m[5m]`,
|
|
fail: true,
|
|
errMsg: "parse error at char 25: unexpected \"]\" in subquery selector, expected \":\"",
|
|
}, {
|
|
input: `(foo + bar)[5m]`,
|
|
fail: true,
|
|
errMsg: "parse error at char 15: unexpected \"]\" in subquery selector, expected \":\"",
|
|
},
|
|
// Test aggregation.
|
|
{
|
|
input: "sum by (foo)(some_metric)",
|
|
expected: &AggregateExpr{
|
|
Op: SUM,
|
|
Expr: &VectorSelector{
|
|
Name: "some_metric",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
|
|
},
|
|
},
|
|
Grouping: []string{"foo"},
|
|
},
|
|
}, {
|
|
input: "avg by (foo)(some_metric)",
|
|
expected: &AggregateExpr{
|
|
Op: AVG,
|
|
Expr: &VectorSelector{
|
|
Name: "some_metric",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
|
|
},
|
|
},
|
|
Grouping: []string{"foo"},
|
|
},
|
|
}, {
|
|
input: "max by (foo)(some_metric)",
|
|
expected: &AggregateExpr{
|
|
Op: MAX,
|
|
Expr: &VectorSelector{
|
|
Name: "some_metric",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
|
|
},
|
|
},
|
|
Grouping: []string{"foo"},
|
|
},
|
|
}, {
|
|
input: "sum without (foo) (some_metric)",
|
|
expected: &AggregateExpr{
|
|
Op: SUM,
|
|
Without: true,
|
|
Expr: &VectorSelector{
|
|
Name: "some_metric",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
|
|
},
|
|
},
|
|
Grouping: []string{"foo"},
|
|
},
|
|
}, {
|
|
input: "sum (some_metric) without (foo)",
|
|
expected: &AggregateExpr{
|
|
Op: SUM,
|
|
Without: true,
|
|
Expr: &VectorSelector{
|
|
Name: "some_metric",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
|
|
},
|
|
},
|
|
Grouping: []string{"foo"},
|
|
},
|
|
}, {
|
|
input: "stddev(some_metric)",
|
|
expected: &AggregateExpr{
|
|
Op: STDDEV,
|
|
Expr: &VectorSelector{
|
|
Name: "some_metric",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
|
|
},
|
|
},
|
|
},
|
|
}, {
|
|
input: "stdvar by (foo)(some_metric)",
|
|
expected: &AggregateExpr{
|
|
Op: STDVAR,
|
|
Expr: &VectorSelector{
|
|
Name: "some_metric",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
|
|
},
|
|
},
|
|
Grouping: []string{"foo"},
|
|
},
|
|
}, {
|
|
input: "sum by ()(some_metric)",
|
|
expected: &AggregateExpr{
|
|
Op: SUM,
|
|
Expr: &VectorSelector{
|
|
Name: "some_metric",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
|
|
},
|
|
},
|
|
Grouping: []string{},
|
|
},
|
|
}, {
|
|
input: "topk(5, some_metric)",
|
|
expected: &AggregateExpr{
|
|
Op: TOPK,
|
|
Expr: &VectorSelector{
|
|
Name: "some_metric",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
|
|
},
|
|
},
|
|
Param: &NumberLiteral{5},
|
|
},
|
|
}, {
|
|
input: "count_values(\"value\", some_metric)",
|
|
expected: &AggregateExpr{
|
|
Op: COUNT_VALUES,
|
|
Expr: &VectorSelector{
|
|
Name: "some_metric",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
|
|
},
|
|
},
|
|
Param: &StringLiteral{"value"},
|
|
},
|
|
}, {
|
|
// Test usage of keywords as label names.
|
|
input: "sum without(and, by, avg, count, alert, annotations)(some_metric)",
|
|
expected: &AggregateExpr{
|
|
Op: SUM,
|
|
Without: true,
|
|
Expr: &VectorSelector{
|
|
Name: "some_metric",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
|
|
},
|
|
},
|
|
Grouping: []string{"and", "by", "avg", "count", "alert", "annotations"},
|
|
},
|
|
}, {
|
|
input: "sum without(==)(some_metric)",
|
|
fail: true,
|
|
errMsg: "unexpected <op:==> in grouping opts, expected label",
|
|
}, {
|
|
input: `sum some_metric by (test)`,
|
|
fail: true,
|
|
errMsg: "unexpected identifier \"some_metric\" in aggregation, expected \"(\"",
|
|
}, {
|
|
input: `sum (some_metric) by test`,
|
|
fail: true,
|
|
errMsg: "unexpected identifier \"test\" in grouping opts, expected \"(\"",
|
|
}, {
|
|
input: `sum (some_metric) by test`,
|
|
fail: true,
|
|
errMsg: "unexpected identifier \"test\" in grouping opts, expected \"(\"",
|
|
}, {
|
|
input: `sum () by (test)`,
|
|
fail: true,
|
|
errMsg: "no valid expression found",
|
|
}, {
|
|
input: "MIN keep_common (some_metric)",
|
|
fail: true,
|
|
errMsg: "parse error at char 5: unexpected identifier \"keep_common\" in aggregation, expected \"(\"",
|
|
}, {
|
|
input: "MIN (some_metric) keep_common",
|
|
fail: true,
|
|
errMsg: "could not parse remaining input \"keep_common\"...",
|
|
}, {
|
|
input: `sum (some_metric) without (test) by (test)`,
|
|
fail: true,
|
|
errMsg: "could not parse remaining input \"by (test)\"...",
|
|
}, {
|
|
input: `sum without (test) (some_metric) by (test)`,
|
|
fail: true,
|
|
errMsg: "could not parse remaining input \"by (test)\"...",
|
|
}, {
|
|
input: `topk(some_metric)`,
|
|
fail: true,
|
|
errMsg: "parse error at char 17: unexpected \")\" in aggregation, expected \",\"",
|
|
}, {
|
|
input: `topk(some_metric, other_metric)`,
|
|
fail: true,
|
|
errMsg: "parse error at char 32: expected type scalar in aggregation parameter, got instant vector",
|
|
}, {
|
|
input: `count_values(5, other_metric)`,
|
|
fail: true,
|
|
errMsg: "parse error at char 30: expected type string in aggregation parameter, got scalar",
|
|
},
|
|
// Test function calls.
|
|
{
|
|
input: "time()",
|
|
expected: &Call{
|
|
Func: mustGetFunction("time"),
|
|
},
|
|
}, {
|
|
input: `floor(some_metric{foo!="bar"})`,
|
|
expected: &Call{
|
|
Func: mustGetFunction("floor"),
|
|
Args: Expressions{
|
|
&VectorSelector{
|
|
Name: "some_metric",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchNotEqual, "foo", "bar"),
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}, {
|
|
input: "rate(some_metric[5m])",
|
|
expected: &Call{
|
|
Func: mustGetFunction("rate"),
|
|
Args: Expressions{
|
|
&MatrixSelector{
|
|
Name: "some_metric",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
|
|
},
|
|
Range: 5 * time.Minute,
|
|
},
|
|
},
|
|
},
|
|
}, {
|
|
input: "round(some_metric)",
|
|
expected: &Call{
|
|
Func: mustGetFunction("round"),
|
|
Args: Expressions{
|
|
&VectorSelector{
|
|
Name: "some_metric",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}, {
|
|
input: "round(some_metric, 5)",
|
|
expected: &Call{
|
|
Func: mustGetFunction("round"),
|
|
Args: Expressions{
|
|
&VectorSelector{
|
|
Name: "some_metric",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
|
|
},
|
|
},
|
|
&NumberLiteral{5},
|
|
},
|
|
},
|
|
}, {
|
|
input: "floor()",
|
|
fail: true,
|
|
errMsg: "expected 1 argument(s) in call to \"floor\", got 0",
|
|
}, {
|
|
input: "floor(some_metric, other_metric)",
|
|
fail: true,
|
|
errMsg: "expected 1 argument(s) in call to \"floor\", got 2",
|
|
}, {
|
|
input: "floor(1)",
|
|
fail: true,
|
|
errMsg: "expected type instant vector in call to function \"floor\", got scalar",
|
|
}, {
|
|
input: "non_existent_function_far_bar()",
|
|
fail: true,
|
|
errMsg: "unknown function with name \"non_existent_function_far_bar\"",
|
|
}, {
|
|
input: "rate(some_metric)",
|
|
fail: true,
|
|
errMsg: "expected type range vector in call to function \"rate\", got instant vector",
|
|
}, {
|
|
input: "label_replace(a, `b`, `c\xff`, `d`, `.*`)",
|
|
fail: true,
|
|
errMsg: "parse error at char 23: invalid UTF-8 rune",
|
|
},
|
|
// Fuzzing regression tests.
|
|
{
|
|
input: "-=",
|
|
fail: true,
|
|
errMsg: `no valid expression found`,
|
|
}, {
|
|
input: "++-++-+-+-<",
|
|
fail: true,
|
|
errMsg: `no valid expression found`,
|
|
}, {
|
|
input: "e-+=/(0)",
|
|
fail: true,
|
|
errMsg: `no valid expression found`,
|
|
},
|
|
// String quoting and escape sequence interpretation tests.
|
|
{
|
|
input: `"double-quoted string \" with escaped quote"`,
|
|
expected: &StringLiteral{
|
|
Val: "double-quoted string \" with escaped quote",
|
|
},
|
|
}, {
|
|
input: `'single-quoted string \' with escaped quote'`,
|
|
expected: &StringLiteral{
|
|
Val: "single-quoted string ' with escaped quote",
|
|
},
|
|
}, {
|
|
input: "`backtick-quoted string`",
|
|
expected: &StringLiteral{
|
|
Val: "backtick-quoted string",
|
|
},
|
|
}, {
|
|
input: `"\a\b\f\n\r\t\v\\\" - \xFF\377\u1234\U00010111\U0001011111☺"`,
|
|
expected: &StringLiteral{
|
|
Val: "\a\b\f\n\r\t\v\\\" - \xFF\377\u1234\U00010111\U0001011111☺",
|
|
},
|
|
}, {
|
|
input: `'\a\b\f\n\r\t\v\\\' - \xFF\377\u1234\U00010111\U0001011111☺'`,
|
|
expected: &StringLiteral{
|
|
Val: "\a\b\f\n\r\t\v\\' - \xFF\377\u1234\U00010111\U0001011111☺",
|
|
},
|
|
}, {
|
|
input: "`" + `\a\b\f\n\r\t\v\\\"\' - \xFF\377\u1234\U00010111\U0001011111☺` + "`",
|
|
expected: &StringLiteral{
|
|
Val: `\a\b\f\n\r\t\v\\\"\' - \xFF\377\u1234\U00010111\U0001011111☺`,
|
|
},
|
|
}, {
|
|
input: "`\\``",
|
|
fail: true,
|
|
errMsg: "could not parse remaining input",
|
|
}, {
|
|
input: `"\`,
|
|
fail: true,
|
|
errMsg: "escape sequence not terminated",
|
|
}, {
|
|
input: `"\c"`,
|
|
fail: true,
|
|
errMsg: "unknown escape sequence U+0063 'c'",
|
|
}, {
|
|
input: `"\x."`,
|
|
fail: true,
|
|
errMsg: "illegal character U+002E '.' in escape sequence",
|
|
},
|
|
// Subquery.
|
|
{
|
|
input: `foo{bar="baz"}[10m:6s]`,
|
|
expected: &SubqueryExpr{
|
|
Expr: &VectorSelector{
|
|
Name: "foo",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, "bar", "baz"),
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
Range: 10 * time.Minute,
|
|
Step: 6 * time.Second,
|
|
},
|
|
}, {
|
|
input: `foo[10m:]`,
|
|
expected: &SubqueryExpr{
|
|
Expr: &VectorSelector{
|
|
Name: "foo",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
Range: 10 * time.Minute,
|
|
},
|
|
}, {
|
|
input: `min_over_time(rate(foo{bar="baz"}[2s])[5m:5s])`,
|
|
expected: &Call{
|
|
Func: mustGetFunction("min_over_time"),
|
|
Args: Expressions{
|
|
&SubqueryExpr{
|
|
Expr: &Call{
|
|
Func: mustGetFunction("rate"),
|
|
Args: Expressions{
|
|
&MatrixSelector{
|
|
Name: "foo",
|
|
Range: 2 * time.Second,
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, "bar", "baz"),
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
Range: 5 * time.Minute,
|
|
Step: 5 * time.Second,
|
|
},
|
|
},
|
|
},
|
|
}, {
|
|
input: `min_over_time(rate(foo{bar="baz"}[2s])[5m:])[4m:3s]`,
|
|
expected: &SubqueryExpr{
|
|
Expr: &Call{
|
|
Func: mustGetFunction("min_over_time"),
|
|
Args: Expressions{
|
|
&SubqueryExpr{
|
|
Expr: &Call{
|
|
Func: mustGetFunction("rate"),
|
|
Args: Expressions{
|
|
&MatrixSelector{
|
|
Name: "foo",
|
|
Range: 2 * time.Second,
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, "bar", "baz"),
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
Range: 5 * time.Minute,
|
|
},
|
|
},
|
|
},
|
|
Range: 4 * time.Minute,
|
|
Step: 3 * time.Second,
|
|
},
|
|
}, {
|
|
input: `min_over_time(rate(foo{bar="baz"}[2s])[5m:] offset 4m)[4m:3s]`,
|
|
expected: &SubqueryExpr{
|
|
Expr: &Call{
|
|
Func: mustGetFunction("min_over_time"),
|
|
Args: Expressions{
|
|
&SubqueryExpr{
|
|
Expr: &Call{
|
|
Func: mustGetFunction("rate"),
|
|
Args: Expressions{
|
|
&MatrixSelector{
|
|
Name: "foo",
|
|
Range: 2 * time.Second,
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, "bar", "baz"),
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
Range: 5 * time.Minute,
|
|
Offset: 4 * time.Minute,
|
|
},
|
|
},
|
|
},
|
|
Range: 4 * time.Minute,
|
|
Step: 3 * time.Second,
|
|
},
|
|
}, {
|
|
input: "sum without(and, by, avg, count, alert, annotations)(some_metric) [30m:10s]",
|
|
expected: &SubqueryExpr{
|
|
Expr: &AggregateExpr{
|
|
Op: SUM,
|
|
Without: true,
|
|
Expr: &VectorSelector{
|
|
Name: "some_metric",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
|
|
},
|
|
},
|
|
Grouping: []string{"and", "by", "avg", "count", "alert", "annotations"},
|
|
},
|
|
Range: 30 * time.Minute,
|
|
Step: 10 * time.Second,
|
|
},
|
|
}, {
|
|
input: `some_metric OFFSET 1m [10m:5s]`,
|
|
expected: &SubqueryExpr{
|
|
Expr: &VectorSelector{
|
|
Name: "some_metric",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "some_metric"),
|
|
},
|
|
Offset: 1 * time.Minute,
|
|
},
|
|
Range: 10 * time.Minute,
|
|
Step: 5 * time.Second,
|
|
},
|
|
}, {
|
|
input: `(foo + bar{nm="val"})[5m:]`,
|
|
expected: &SubqueryExpr{
|
|
Expr: &ParenExpr{
|
|
Expr: &BinaryExpr{
|
|
Op: ADD,
|
|
VectorMatching: &VectorMatching{
|
|
Card: CardOneToOne,
|
|
},
|
|
LHS: &VectorSelector{
|
|
Name: "foo",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
RHS: &VectorSelector{
|
|
Name: "bar",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, "nm", "val"),
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
Range: 5 * time.Minute,
|
|
},
|
|
}, {
|
|
input: `(foo + bar{nm="val"})[5m:] offset 10m`,
|
|
expected: &SubqueryExpr{
|
|
Expr: &ParenExpr{
|
|
Expr: &BinaryExpr{
|
|
Op: ADD,
|
|
VectorMatching: &VectorMatching{
|
|
Card: CardOneToOne,
|
|
},
|
|
LHS: &VectorSelector{
|
|
Name: "foo",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "foo"),
|
|
},
|
|
},
|
|
RHS: &VectorSelector{
|
|
Name: "bar",
|
|
LabelMatchers: []*labels.Matcher{
|
|
mustLabelMatcher(labels.MatchEqual, "nm", "val"),
|
|
mustLabelMatcher(labels.MatchEqual, string(model.MetricNameLabel), "bar"),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
Range: 5 * time.Minute,
|
|
Offset: 10 * time.Minute,
|
|
},
|
|
}, {
|
|
input: "test[5d] OFFSET 10s [10m:5s]",
|
|
fail: true,
|
|
errMsg: "parse error at char 29: subquery is only allowed on instant vector, got matrix in \"test[5d] offset 10s[10m:5s]\"",
|
|
}, {
|
|
input: `(foo + bar{nm="val"})[5m:][10m:5s]`,
|
|
fail: true,
|
|
errMsg: "parse error at char 27: could not parse remaining input \"[10m:5s]\"...",
|
|
},
|
|
}
|
|
|
|
func TestParseExpressions(t *testing.T) {
|
|
for _, test := range testExpr {
|
|
expr, err := ParseExpr(test.input)
|
|
|
|
// Unexpected errors are always caused by a bug.
|
|
testutil.Assert(t, err != errUnexpected, "unexpected error occurred")
|
|
|
|
if !test.fail {
|
|
testutil.Ok(t, err)
|
|
testutil.Equals(t, expr, test.expected, "error on input '%s'", test.input)
|
|
} else {
|
|
testutil.NotOk(t, err)
|
|
testutil.Assert(t, strings.Contains(err.Error(), test.errMsg), "unexpected error on input '%s'", test.input)
|
|
}
|
|
}
|
|
}
|
|
|
|
// NaN has no equality. Thus, we need a separate test for it.
|
|
func TestNaNExpression(t *testing.T) {
|
|
expr, err := ParseExpr("NaN")
|
|
testutil.Ok(t, err)
|
|
|
|
nl, ok := expr.(*NumberLiteral)
|
|
testutil.Assert(t, ok, "expected number literal but got %T", expr)
|
|
testutil.Assert(t, math.IsNaN(float64(nl.Val)), "expected 'NaN' in number literal but got %v", nl.Val)
|
|
}
|
|
|
|
func mustLabelMatcher(mt labels.MatchType, name, val string) *labels.Matcher {
|
|
m, err := labels.NewMatcher(mt, name, val)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
return m
|
|
}
|
|
|
|
func mustGetFunction(name string) *Function {
|
|
f, ok := getFunction(name)
|
|
if !ok {
|
|
panic(errors.Errorf("function %q does not exist", name))
|
|
}
|
|
return f
|
|
}
|
|
|
|
var testSeries = []struct {
|
|
input string
|
|
expectedMetric labels.Labels
|
|
expectedValues []sequenceValue
|
|
fail bool
|
|
}{
|
|
{
|
|
input: `{} 1 2 3`,
|
|
expectedMetric: labels.Labels{},
|
|
expectedValues: newSeq(1, 2, 3),
|
|
}, {
|
|
input: `{a="b"} -1 2 3`,
|
|
expectedMetric: labels.FromStrings("a", "b"),
|
|
expectedValues: newSeq(-1, 2, 3),
|
|
}, {
|
|
input: `my_metric 1 2 3`,
|
|
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric"),
|
|
expectedValues: newSeq(1, 2, 3),
|
|
}, {
|
|
input: `my_metric{} 1 2 3`,
|
|
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric"),
|
|
expectedValues: newSeq(1, 2, 3),
|
|
}, {
|
|
input: `my_metric{a="b"} 1 2 3`,
|
|
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", "b"),
|
|
expectedValues: newSeq(1, 2, 3),
|
|
}, {
|
|
input: `my_metric{a="b"} 1 2 3-10x4`,
|
|
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", "b"),
|
|
expectedValues: newSeq(1, 2, 3, -7, -17, -27, -37),
|
|
}, {
|
|
input: `my_metric{a="b"} 1 2 3-0x4`,
|
|
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", "b"),
|
|
expectedValues: newSeq(1, 2, 3, 3, 3, 3, 3),
|
|
}, {
|
|
input: `my_metric{a="b"} 1 3 _ 5 _x4`,
|
|
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", "b"),
|
|
expectedValues: newSeq(1, 3, none, 5, none, none, none, none),
|
|
}, {
|
|
input: `my_metric{a="b"} 1 3 _ 5 _a4`,
|
|
fail: true,
|
|
}, {
|
|
input: `my_metric{a="b"} 1 -1`,
|
|
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", "b"),
|
|
expectedValues: newSeq(1, -1),
|
|
}, {
|
|
input: `my_metric{a="b"} 1 +1`,
|
|
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", "b"),
|
|
expectedValues: newSeq(1, 1),
|
|
}, {
|
|
input: `my_metric{a="b"} 1 -1 -3-10x4 7 9 +5`,
|
|
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", "b"),
|
|
expectedValues: newSeq(1, -1, -3, -13, -23, -33, -43, 7, 9, 5),
|
|
}, {
|
|
input: `my_metric{a="b"} 1 +1 +4 -6 -2 8`,
|
|
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", "b"),
|
|
expectedValues: newSeq(1, 1, 4, -6, -2, 8),
|
|
}, {
|
|
// Trailing spaces should be correctly handles.
|
|
input: `my_metric{a="b"} 1 2 3 `,
|
|
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", "b"),
|
|
expectedValues: newSeq(1, 2, 3),
|
|
}, {
|
|
input: `my_metric{a="b"} -3-3 -3`,
|
|
fail: true,
|
|
}, {
|
|
input: `my_metric{a="b"} -3 -3-3`,
|
|
fail: true,
|
|
}, {
|
|
input: `my_metric{a="b"} -3 _-2`,
|
|
fail: true,
|
|
}, {
|
|
input: `my_metric{a="b"} -3 3+3x4-4`,
|
|
fail: true,
|
|
},
|
|
}
|
|
|
|
// For these tests only, we use the smallest float64 to signal an omitted value.
|
|
const none = math.SmallestNonzeroFloat64
|
|
|
|
func newSeq(vals ...float64) (res []sequenceValue) {
|
|
for _, v := range vals {
|
|
if v == none {
|
|
res = append(res, sequenceValue{omitted: true})
|
|
} else {
|
|
res = append(res, sequenceValue{value: v})
|
|
}
|
|
}
|
|
return res
|
|
}
|
|
|
|
func TestParseSeries(t *testing.T) {
|
|
for _, test := range testSeries {
|
|
metric, vals, err := parseSeriesDesc(test.input)
|
|
|
|
// Unexpected errors are always caused by a bug.
|
|
testutil.Assert(t, err != errUnexpected, "unexpected error occurred")
|
|
|
|
if !test.fail {
|
|
testutil.Ok(t, err)
|
|
testutil.Equals(t, test.expectedMetric, metric, "error on input '%s'", test.input)
|
|
testutil.Equals(t, test.expectedValues, vals, "error in input '%s'", test.input)
|
|
} else {
|
|
testutil.NotOk(t, err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestRecoverParserRuntime(t *testing.T) {
|
|
p := newParser("foo bar")
|
|
var err error
|
|
|
|
defer func() {
|
|
testutil.Equals(t, err, errUnexpected)
|
|
}()
|
|
defer p.recover(&err)
|
|
// Cause a runtime panic.
|
|
var a []int
|
|
//nolint:govet
|
|
a[123] = 1
|
|
}
|
|
|
|
func TestRecoverParserError(t *testing.T) {
|
|
p := newParser("foo bar")
|
|
var err error
|
|
|
|
e := errors.New("custom error")
|
|
|
|
defer func() {
|
|
testutil.Equals(t, err.Error(), e.Error())
|
|
}()
|
|
defer p.recover(&err)
|
|
|
|
panic(e)
|
|
}
|