mirror of
https://github.com/prometheus/prometheus.git
synced 2024-11-17 02:54:05 -08:00
69edd8709b
Return annotations (warnings and infos) from PromQL queries This generalizes the warnings we have already used before (but only for problems with remote read) as "annotations". Annotations can be warnings or infos (the latter could be false positives). We do not treat them different in the API for now and return them all as "warnings". It would be easy to distinguish them and return infos separately, should that appear useful in the future. The new annotations are then used to create a lot of warnings or infos during PromQL evaluations. Partially these are things we have wanted for a long time (e.g. inform the user that they have applied `rate` to a metric that doesn't look like a counter), but the new native histograms have created even more needs for those annotations (e.g. if a query tries to aggregate float numbers with histograms). The annotations added here are not yet complete. A prominent example would be a warning about a range too short for a rate calculation. But such a warnings is more tricky to create with good fidelity and we will tackle it later. Another TODO is to take annotations into account when evaluating recording rules. --------- Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
838 lines
18 KiB
Go
838 lines
18 KiB
Go
// Copyright 2015 The Prometheus Authors
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package parser
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/require"
|
|
|
|
"github.com/prometheus/prometheus/promql/parser/posrange"
|
|
)
|
|
|
|
type testCase struct {
|
|
input string
|
|
expected []Item
|
|
fail bool
|
|
seriesDesc bool // Whether to lex a series description.
|
|
}
|
|
|
|
var tests = []struct {
|
|
name string
|
|
tests []testCase
|
|
}{
|
|
{
|
|
name: "common",
|
|
tests: []testCase{
|
|
{
|
|
input: ",",
|
|
expected: []Item{{COMMA, 0, ","}},
|
|
}, {
|
|
input: "()",
|
|
expected: []Item{{LEFT_PAREN, 0, `(`}, {RIGHT_PAREN, 1, `)`}},
|
|
}, {
|
|
input: "{}",
|
|
expected: []Item{{LEFT_BRACE, 0, `{`}, {RIGHT_BRACE, 1, `}`}},
|
|
}, {
|
|
input: "[5m]",
|
|
expected: []Item{
|
|
{LEFT_BRACKET, 0, `[`},
|
|
{DURATION, 1, `5m`},
|
|
{RIGHT_BRACKET, 3, `]`},
|
|
},
|
|
}, {
|
|
input: "[ 5m]",
|
|
expected: []Item{
|
|
{LEFT_BRACKET, 0, `[`},
|
|
{DURATION, 2, `5m`},
|
|
{RIGHT_BRACKET, 4, `]`},
|
|
},
|
|
}, {
|
|
input: "[ 5m]",
|
|
expected: []Item{
|
|
{LEFT_BRACKET, 0, `[`},
|
|
{DURATION, 3, `5m`},
|
|
{RIGHT_BRACKET, 5, `]`},
|
|
},
|
|
}, {
|
|
input: "[ 5m ]",
|
|
expected: []Item{
|
|
{LEFT_BRACKET, 0, `[`},
|
|
{DURATION, 3, `5m`},
|
|
{RIGHT_BRACKET, 6, `]`},
|
|
},
|
|
}, {
|
|
input: "\r\n\r",
|
|
expected: []Item{},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "numbers",
|
|
tests: []testCase{
|
|
{
|
|
input: "1",
|
|
expected: []Item{{NUMBER, 0, "1"}},
|
|
}, {
|
|
input: "4.23",
|
|
expected: []Item{{NUMBER, 0, "4.23"}},
|
|
}, {
|
|
input: ".3",
|
|
expected: []Item{{NUMBER, 0, ".3"}},
|
|
}, {
|
|
input: "5.",
|
|
expected: []Item{{NUMBER, 0, "5."}},
|
|
}, {
|
|
input: "NaN",
|
|
expected: []Item{{NUMBER, 0, "NaN"}},
|
|
}, {
|
|
input: "nAN",
|
|
expected: []Item{{NUMBER, 0, "nAN"}},
|
|
}, {
|
|
input: "NaN 123",
|
|
expected: []Item{{NUMBER, 0, "NaN"}, {NUMBER, 4, "123"}},
|
|
}, {
|
|
input: "NaN123",
|
|
expected: []Item{{IDENTIFIER, 0, "NaN123"}},
|
|
}, {
|
|
input: "iNf",
|
|
expected: []Item{{NUMBER, 0, "iNf"}},
|
|
}, {
|
|
input: "Inf",
|
|
expected: []Item{{NUMBER, 0, "Inf"}},
|
|
}, {
|
|
input: "+Inf",
|
|
expected: []Item{{ADD, 0, "+"}, {NUMBER, 1, "Inf"}},
|
|
}, {
|
|
input: "+Inf 123",
|
|
expected: []Item{{ADD, 0, "+"}, {NUMBER, 1, "Inf"}, {NUMBER, 5, "123"}},
|
|
}, {
|
|
input: "-Inf",
|
|
expected: []Item{{SUB, 0, "-"}, {NUMBER, 1, "Inf"}},
|
|
}, {
|
|
input: "Infoo",
|
|
expected: []Item{{IDENTIFIER, 0, "Infoo"}},
|
|
}, {
|
|
input: "-Infoo",
|
|
expected: []Item{{SUB, 0, "-"}, {IDENTIFIER, 1, "Infoo"}},
|
|
}, {
|
|
input: "-Inf 123",
|
|
expected: []Item{{SUB, 0, "-"}, {NUMBER, 1, "Inf"}, {NUMBER, 5, "123"}},
|
|
}, {
|
|
input: "0x123",
|
|
expected: []Item{{NUMBER, 0, "0x123"}},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "strings",
|
|
tests: []testCase{
|
|
{
|
|
input: "\"test\\tsequence\"",
|
|
expected: []Item{{STRING, 0, `"test\tsequence"`}},
|
|
},
|
|
{
|
|
input: "\"test\\\\.expression\"",
|
|
expected: []Item{{STRING, 0, `"test\\.expression"`}},
|
|
},
|
|
{
|
|
input: "\"test\\.expression\"",
|
|
expected: []Item{
|
|
{ERROR, 0, "unknown escape sequence U+002E '.'"},
|
|
{STRING, 0, `"test\.expression"`},
|
|
},
|
|
},
|
|
{
|
|
input: "`test\\.expression`",
|
|
expected: []Item{{STRING, 0, "`test\\.expression`"}},
|
|
},
|
|
{
|
|
// See https://github.com/prometheus/prometheus/issues/939.
|
|
input: ".٩",
|
|
fail: true,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "durations",
|
|
tests: []testCase{
|
|
{
|
|
input: "5s",
|
|
expected: []Item{{DURATION, 0, "5s"}},
|
|
}, {
|
|
input: "123m",
|
|
expected: []Item{{DURATION, 0, "123m"}},
|
|
}, {
|
|
input: "1h",
|
|
expected: []Item{{DURATION, 0, "1h"}},
|
|
}, {
|
|
input: "3w",
|
|
expected: []Item{{DURATION, 0, "3w"}},
|
|
}, {
|
|
input: "1y",
|
|
expected: []Item{{DURATION, 0, "1y"}},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "identifiers",
|
|
tests: []testCase{
|
|
{
|
|
input: "abc",
|
|
expected: []Item{{IDENTIFIER, 0, "abc"}},
|
|
}, {
|
|
input: "a:bc",
|
|
expected: []Item{{METRIC_IDENTIFIER, 0, "a:bc"}},
|
|
}, {
|
|
input: "abc d",
|
|
expected: []Item{{IDENTIFIER, 0, "abc"}, {IDENTIFIER, 4, "d"}},
|
|
}, {
|
|
input: ":bc",
|
|
expected: []Item{{METRIC_IDENTIFIER, 0, ":bc"}},
|
|
}, {
|
|
input: "0a:bc",
|
|
fail: true,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "comments",
|
|
tests: []testCase{
|
|
{
|
|
input: "# some comment",
|
|
expected: []Item{{COMMENT, 0, "# some comment"}},
|
|
}, {
|
|
input: "5 # 1+1\n5",
|
|
expected: []Item{
|
|
{NUMBER, 0, "5"},
|
|
{COMMENT, 2, "# 1+1"},
|
|
{NUMBER, 8, "5"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "operators",
|
|
tests: []testCase{
|
|
{
|
|
input: `=`,
|
|
expected: []Item{{EQL, 0, `=`}},
|
|
}, {
|
|
// Inside braces equality is a single '=' character but in terms of a token
|
|
// it should be treated as ASSIGN.
|
|
input: `{=}`,
|
|
expected: []Item{{LEFT_BRACE, 0, `{`}, {EQL, 1, `=`}, {RIGHT_BRACE, 2, `}`}},
|
|
}, {
|
|
input: `==`,
|
|
expected: []Item{{EQLC, 0, `==`}},
|
|
}, {
|
|
input: `!=`,
|
|
expected: []Item{{NEQ, 0, `!=`}},
|
|
}, {
|
|
input: `<`,
|
|
expected: []Item{{LSS, 0, `<`}},
|
|
}, {
|
|
input: `>`,
|
|
expected: []Item{{GTR, 0, `>`}},
|
|
}, {
|
|
input: `>=`,
|
|
expected: []Item{{GTE, 0, `>=`}},
|
|
}, {
|
|
input: `<=`,
|
|
expected: []Item{{LTE, 0, `<=`}},
|
|
}, {
|
|
input: `+`,
|
|
expected: []Item{{ADD, 0, `+`}},
|
|
}, {
|
|
input: `-`,
|
|
expected: []Item{{SUB, 0, `-`}},
|
|
}, {
|
|
input: `*`,
|
|
expected: []Item{{MUL, 0, `*`}},
|
|
}, {
|
|
input: `/`,
|
|
expected: []Item{{DIV, 0, `/`}},
|
|
}, {
|
|
input: `^`,
|
|
expected: []Item{{POW, 0, `^`}},
|
|
}, {
|
|
input: `%`,
|
|
expected: []Item{{MOD, 0, `%`}},
|
|
}, {
|
|
input: `AND`,
|
|
expected: []Item{{LAND, 0, `AND`}},
|
|
}, {
|
|
input: `or`,
|
|
expected: []Item{{LOR, 0, `or`}},
|
|
}, {
|
|
input: `unless`,
|
|
expected: []Item{{LUNLESS, 0, `unless`}},
|
|
}, {
|
|
input: `@`,
|
|
expected: []Item{{AT, 0, `@`}},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "aggregators",
|
|
tests: []testCase{
|
|
{
|
|
input: `sum`,
|
|
expected: []Item{{SUM, 0, `sum`}},
|
|
}, {
|
|
input: `AVG`,
|
|
expected: []Item{{AVG, 0, `AVG`}},
|
|
}, {
|
|
input: `GROUP`,
|
|
expected: []Item{{GROUP, 0, `GROUP`}},
|
|
}, {
|
|
input: `MAX`,
|
|
expected: []Item{{MAX, 0, `MAX`}},
|
|
}, {
|
|
input: `min`,
|
|
expected: []Item{{MIN, 0, `min`}},
|
|
}, {
|
|
input: `count`,
|
|
expected: []Item{{COUNT, 0, `count`}},
|
|
}, {
|
|
input: `stdvar`,
|
|
expected: []Item{{STDVAR, 0, `stdvar`}},
|
|
}, {
|
|
input: `stddev`,
|
|
expected: []Item{{STDDEV, 0, `stddev`}},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "keywords",
|
|
tests: []testCase{
|
|
{
|
|
input: "offset",
|
|
expected: []Item{{OFFSET, 0, "offset"}},
|
|
},
|
|
{
|
|
input: "by",
|
|
expected: []Item{{BY, 0, "by"}},
|
|
},
|
|
{
|
|
input: "without",
|
|
expected: []Item{{WITHOUT, 0, "without"}},
|
|
},
|
|
{
|
|
input: "on",
|
|
expected: []Item{{ON, 0, "on"}},
|
|
},
|
|
{
|
|
input: "ignoring",
|
|
expected: []Item{{IGNORING, 0, "ignoring"}},
|
|
},
|
|
{
|
|
input: "group_left",
|
|
expected: []Item{{GROUP_LEFT, 0, "group_left"}},
|
|
},
|
|
{
|
|
input: "group_right",
|
|
expected: []Item{{GROUP_RIGHT, 0, "group_right"}},
|
|
},
|
|
{
|
|
input: "bool",
|
|
expected: []Item{{BOOL, 0, "bool"}},
|
|
},
|
|
{
|
|
input: "atan2",
|
|
expected: []Item{{ATAN2, 0, "atan2"}},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "preprocessors",
|
|
tests: []testCase{
|
|
{
|
|
input: `start`,
|
|
expected: []Item{{START, 0, `start`}},
|
|
},
|
|
{
|
|
input: `end`,
|
|
expected: []Item{{END, 0, `end`}},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "selectors",
|
|
tests: []testCase{
|
|
{
|
|
input: `台北`,
|
|
fail: true,
|
|
}, {
|
|
input: `{台北='a'}`,
|
|
fail: true,
|
|
}, {
|
|
input: `{0a='a'}`,
|
|
fail: true,
|
|
}, {
|
|
input: `{foo='bar'}`,
|
|
expected: []Item{
|
|
{LEFT_BRACE, 0, `{`},
|
|
{IDENTIFIER, 1, `foo`},
|
|
{EQL, 4, `=`},
|
|
{STRING, 5, `'bar'`},
|
|
{RIGHT_BRACE, 10, `}`},
|
|
},
|
|
}, {
|
|
input: `{foo="bar"}`,
|
|
expected: []Item{
|
|
{LEFT_BRACE, 0, `{`},
|
|
{IDENTIFIER, 1, `foo`},
|
|
{EQL, 4, `=`},
|
|
{STRING, 5, `"bar"`},
|
|
{RIGHT_BRACE, 10, `}`},
|
|
},
|
|
}, {
|
|
input: `{foo="bar\"bar"}`,
|
|
expected: []Item{
|
|
{LEFT_BRACE, 0, `{`},
|
|
{IDENTIFIER, 1, `foo`},
|
|
{EQL, 4, `=`},
|
|
{STRING, 5, `"bar\"bar"`},
|
|
{RIGHT_BRACE, 15, `}`},
|
|
},
|
|
}, {
|
|
input: `{NaN != "bar" }`,
|
|
expected: []Item{
|
|
{LEFT_BRACE, 0, `{`},
|
|
{IDENTIFIER, 1, `NaN`},
|
|
{NEQ, 5, `!=`},
|
|
{STRING, 8, `"bar"`},
|
|
{RIGHT_BRACE, 14, `}`},
|
|
},
|
|
}, {
|
|
input: `{alert=~"bar" }`,
|
|
expected: []Item{
|
|
{LEFT_BRACE, 0, `{`},
|
|
{IDENTIFIER, 1, `alert`},
|
|
{EQL_REGEX, 6, `=~`},
|
|
{STRING, 8, `"bar"`},
|
|
{RIGHT_BRACE, 14, `}`},
|
|
},
|
|
}, {
|
|
input: `{on!~"bar"}`,
|
|
expected: []Item{
|
|
{LEFT_BRACE, 0, `{`},
|
|
{IDENTIFIER, 1, `on`},
|
|
{NEQ_REGEX, 3, `!~`},
|
|
{STRING, 5, `"bar"`},
|
|
{RIGHT_BRACE, 10, `}`},
|
|
},
|
|
}, {
|
|
input: `{alert!#"bar"}`, fail: true,
|
|
}, {
|
|
input: `{foo:a="bar"}`, fail: true,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "common errors",
|
|
tests: []testCase{
|
|
{
|
|
input: `=~`, fail: true,
|
|
}, {
|
|
input: `!~`, fail: true,
|
|
}, {
|
|
input: `!(`, fail: true,
|
|
}, {
|
|
input: "1a", fail: true,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "mismatched parentheses",
|
|
tests: []testCase{
|
|
{
|
|
input: `(`, fail: true,
|
|
}, {
|
|
input: `())`, fail: true,
|
|
}, {
|
|
input: `(()`, fail: true,
|
|
}, {
|
|
input: `{`, fail: true,
|
|
}, {
|
|
input: `}`, fail: true,
|
|
}, {
|
|
input: "{{", fail: true,
|
|
}, {
|
|
input: "{{}}", fail: true,
|
|
}, {
|
|
input: `[`, fail: true,
|
|
}, {
|
|
input: `[[`, fail: true,
|
|
}, {
|
|
input: `[]]`, fail: true,
|
|
}, {
|
|
input: `[[]]`, fail: true,
|
|
}, {
|
|
input: `]`, fail: true,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "encoding issues",
|
|
tests: []testCase{
|
|
{
|
|
input: "\"\xff\"", fail: true,
|
|
},
|
|
{
|
|
input: "`\xff`", fail: true,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "histogram series descriptions",
|
|
tests: []testCase{
|
|
{
|
|
input: `{} {{buckets:[5]}}`,
|
|
expected: []Item{
|
|
{LEFT_BRACE, 0, `{`},
|
|
{RIGHT_BRACE, 1, `}`},
|
|
{SPACE, 2, ` `},
|
|
{OPEN_HIST, 3, `{{`},
|
|
{BUCKETS_DESC, 5, `buckets`},
|
|
{COLON, 12, `:`},
|
|
{LEFT_BRACKET, 13, `[`},
|
|
{NUMBER, 14, `5`},
|
|
{RIGHT_BRACKET, 15, `]`},
|
|
{CLOSE_HIST, 16, `}}`},
|
|
},
|
|
seriesDesc: true,
|
|
},
|
|
{
|
|
input: `{} {{buckets: [5 10 7]}}`,
|
|
expected: []Item{
|
|
{LEFT_BRACE, 0, `{`},
|
|
{RIGHT_BRACE, 1, `}`},
|
|
{SPACE, 2, ` `},
|
|
{OPEN_HIST, 3, `{{`},
|
|
{BUCKETS_DESC, 5, `buckets`},
|
|
{COLON, 12, `:`},
|
|
{SPACE, 13, ` `},
|
|
{LEFT_BRACKET, 14, `[`},
|
|
{NUMBER, 15, `5`},
|
|
{SPACE, 16, ` `},
|
|
{NUMBER, 17, `10`},
|
|
{SPACE, 19, ` `},
|
|
{NUMBER, 20, `7`},
|
|
{RIGHT_BRACKET, 21, `]`},
|
|
{CLOSE_HIST, 22, `}}`},
|
|
},
|
|
seriesDesc: true,
|
|
},
|
|
{
|
|
input: `{} {{buckets: [5 10 7] schema:1}}`,
|
|
expected: []Item{
|
|
{LEFT_BRACE, 0, `{`},
|
|
{RIGHT_BRACE, 1, `}`},
|
|
{SPACE, 2, ` `},
|
|
{OPEN_HIST, 3, `{{`},
|
|
{BUCKETS_DESC, 5, `buckets`},
|
|
{COLON, 12, `:`},
|
|
{SPACE, 13, ` `},
|
|
{LEFT_BRACKET, 14, `[`},
|
|
{NUMBER, 15, `5`},
|
|
{SPACE, 16, ` `},
|
|
{NUMBER, 17, `10`},
|
|
{SPACE, 19, ` `},
|
|
{NUMBER, 20, `7`},
|
|
{RIGHT_BRACKET, 21, `]`},
|
|
{SPACE, 22, ` `},
|
|
{SCHEMA_DESC, 23, `schema`},
|
|
{COLON, 29, `:`},
|
|
{NUMBER, 30, `1`},
|
|
{CLOSE_HIST, 31, `}}`},
|
|
},
|
|
seriesDesc: true,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "series descriptions",
|
|
tests: []testCase{
|
|
{
|
|
input: `{} _ 1 x .3`,
|
|
expected: []Item{
|
|
{LEFT_BRACE, 0, `{`},
|
|
{RIGHT_BRACE, 1, `}`},
|
|
{SPACE, 2, ` `},
|
|
{BLANK, 3, `_`},
|
|
{SPACE, 4, ` `},
|
|
{NUMBER, 5, `1`},
|
|
{SPACE, 6, ` `},
|
|
{TIMES, 7, `x`},
|
|
{SPACE, 8, ` `},
|
|
{NUMBER, 9, `.3`},
|
|
},
|
|
seriesDesc: true,
|
|
},
|
|
{
|
|
input: `metric +Inf Inf NaN`,
|
|
expected: []Item{
|
|
{IDENTIFIER, 0, `metric`},
|
|
{SPACE, 6, ` `},
|
|
{ADD, 7, `+`},
|
|
{NUMBER, 8, `Inf`},
|
|
{SPACE, 11, ` `},
|
|
{NUMBER, 12, `Inf`},
|
|
{SPACE, 15, ` `},
|
|
{NUMBER, 16, `NaN`},
|
|
},
|
|
seriesDesc: true,
|
|
},
|
|
{
|
|
input: `metric 1+1x4`,
|
|
expected: []Item{
|
|
{IDENTIFIER, 0, `metric`},
|
|
{SPACE, 6, ` `},
|
|
{NUMBER, 7, `1`},
|
|
{ADD, 8, `+`},
|
|
{NUMBER, 9, `1`},
|
|
{TIMES, 10, `x`},
|
|
{NUMBER, 11, `4`},
|
|
},
|
|
seriesDesc: true,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "subqueries",
|
|
tests: []testCase{
|
|
{
|
|
input: `test_name{on!~"bar"}[4m:4s]`,
|
|
expected: []Item{
|
|
{IDENTIFIER, 0, `test_name`},
|
|
{LEFT_BRACE, 9, `{`},
|
|
{IDENTIFIER, 10, `on`},
|
|
{NEQ_REGEX, 12, `!~`},
|
|
{STRING, 14, `"bar"`},
|
|
{RIGHT_BRACE, 19, `}`},
|
|
{LEFT_BRACKET, 20, `[`},
|
|
{DURATION, 21, `4m`},
|
|
{COLON, 23, `:`},
|
|
{DURATION, 24, `4s`},
|
|
{RIGHT_BRACKET, 26, `]`},
|
|
},
|
|
},
|
|
{
|
|
input: `test:name{on!~"bar"}[4m:4s]`,
|
|
expected: []Item{
|
|
{METRIC_IDENTIFIER, 0, `test:name`},
|
|
{LEFT_BRACE, 9, `{`},
|
|
{IDENTIFIER, 10, `on`},
|
|
{NEQ_REGEX, 12, `!~`},
|
|
{STRING, 14, `"bar"`},
|
|
{RIGHT_BRACE, 19, `}`},
|
|
{LEFT_BRACKET, 20, `[`},
|
|
{DURATION, 21, `4m`},
|
|
{COLON, 23, `:`},
|
|
{DURATION, 24, `4s`},
|
|
{RIGHT_BRACKET, 26, `]`},
|
|
},
|
|
},
|
|
{
|
|
input: `test:name{on!~"b:ar"}[4m:4s]`,
|
|
expected: []Item{
|
|
{METRIC_IDENTIFIER, 0, `test:name`},
|
|
{LEFT_BRACE, 9, `{`},
|
|
{IDENTIFIER, 10, `on`},
|
|
{NEQ_REGEX, 12, `!~`},
|
|
{STRING, 14, `"b:ar"`},
|
|
{RIGHT_BRACE, 20, `}`},
|
|
{LEFT_BRACKET, 21, `[`},
|
|
{DURATION, 22, `4m`},
|
|
{COLON, 24, `:`},
|
|
{DURATION, 25, `4s`},
|
|
{RIGHT_BRACKET, 27, `]`},
|
|
},
|
|
},
|
|
{
|
|
input: `test:name{on!~"b:ar"}[4m:]`,
|
|
expected: []Item{
|
|
{METRIC_IDENTIFIER, 0, `test:name`},
|
|
{LEFT_BRACE, 9, `{`},
|
|
{IDENTIFIER, 10, `on`},
|
|
{NEQ_REGEX, 12, `!~`},
|
|
{STRING, 14, `"b:ar"`},
|
|
{RIGHT_BRACE, 20, `}`},
|
|
{LEFT_BRACKET, 21, `[`},
|
|
{DURATION, 22, `4m`},
|
|
{COLON, 24, `:`},
|
|
{RIGHT_BRACKET, 25, `]`},
|
|
},
|
|
},
|
|
{ // Nested Subquery.
|
|
input: `min_over_time(rate(foo{bar="baz"}[2s])[5m:])[4m:3s]`,
|
|
expected: []Item{
|
|
{IDENTIFIER, 0, `min_over_time`},
|
|
{LEFT_PAREN, 13, `(`},
|
|
{IDENTIFIER, 14, `rate`},
|
|
{LEFT_PAREN, 18, `(`},
|
|
{IDENTIFIER, 19, `foo`},
|
|
{LEFT_BRACE, 22, `{`},
|
|
{IDENTIFIER, 23, `bar`},
|
|
{EQL, 26, `=`},
|
|
{STRING, 27, `"baz"`},
|
|
{RIGHT_BRACE, 32, `}`},
|
|
{LEFT_BRACKET, 33, `[`},
|
|
{DURATION, 34, `2s`},
|
|
{RIGHT_BRACKET, 36, `]`},
|
|
{RIGHT_PAREN, 37, `)`},
|
|
{LEFT_BRACKET, 38, `[`},
|
|
{DURATION, 39, `5m`},
|
|
{COLON, 41, `:`},
|
|
{RIGHT_BRACKET, 42, `]`},
|
|
{RIGHT_PAREN, 43, `)`},
|
|
{LEFT_BRACKET, 44, `[`},
|
|
{DURATION, 45, `4m`},
|
|
{COLON, 47, `:`},
|
|
{DURATION, 48, `3s`},
|
|
{RIGHT_BRACKET, 50, `]`},
|
|
},
|
|
},
|
|
// Subquery with offset.
|
|
{
|
|
input: `test:name{on!~"b:ar"}[4m:4s] offset 10m`,
|
|
expected: []Item{
|
|
{METRIC_IDENTIFIER, 0, `test:name`},
|
|
{LEFT_BRACE, 9, `{`},
|
|
{IDENTIFIER, 10, `on`},
|
|
{NEQ_REGEX, 12, `!~`},
|
|
{STRING, 14, `"b:ar"`},
|
|
{RIGHT_BRACE, 20, `}`},
|
|
{LEFT_BRACKET, 21, `[`},
|
|
{DURATION, 22, `4m`},
|
|
{COLON, 24, `:`},
|
|
{DURATION, 25, `4s`},
|
|
{RIGHT_BRACKET, 27, `]`},
|
|
{OFFSET, 29, "offset"},
|
|
{DURATION, 36, "10m"},
|
|
},
|
|
},
|
|
{
|
|
input: `min_over_time(rate(foo{bar="baz"}[2s])[5m:] offset 6m)[4m:3s]`,
|
|
expected: []Item{
|
|
{IDENTIFIER, 0, `min_over_time`},
|
|
{LEFT_PAREN, 13, `(`},
|
|
{IDENTIFIER, 14, `rate`},
|
|
{LEFT_PAREN, 18, `(`},
|
|
{IDENTIFIER, 19, `foo`},
|
|
{LEFT_BRACE, 22, `{`},
|
|
{IDENTIFIER, 23, `bar`},
|
|
{EQL, 26, `=`},
|
|
{STRING, 27, `"baz"`},
|
|
{RIGHT_BRACE, 32, `}`},
|
|
{LEFT_BRACKET, 33, `[`},
|
|
{DURATION, 34, `2s`},
|
|
{RIGHT_BRACKET, 36, `]`},
|
|
{RIGHT_PAREN, 37, `)`},
|
|
{LEFT_BRACKET, 38, `[`},
|
|
{DURATION, 39, `5m`},
|
|
{COLON, 41, `:`},
|
|
{RIGHT_BRACKET, 42, `]`},
|
|
{OFFSET, 44, `offset`},
|
|
{DURATION, 51, `6m`},
|
|
{RIGHT_PAREN, 53, `)`},
|
|
{LEFT_BRACKET, 54, `[`},
|
|
{DURATION, 55, `4m`},
|
|
{COLON, 57, `:`},
|
|
{DURATION, 58, `3s`},
|
|
{RIGHT_BRACKET, 60, `]`},
|
|
},
|
|
},
|
|
{
|
|
input: `test:name[ 5m]`,
|
|
expected: []Item{
|
|
{METRIC_IDENTIFIER, 0, `test:name`},
|
|
{LEFT_BRACKET, 9, `[`},
|
|
{DURATION, 11, `5m`},
|
|
{RIGHT_BRACKET, 13, `]`},
|
|
},
|
|
},
|
|
{
|
|
input: `test:name{o:n!~"bar"}[4m:4s]`,
|
|
fail: true,
|
|
},
|
|
{
|
|
input: `test:name{on!~"bar"}[4m:4s:4h]`,
|
|
fail: true,
|
|
},
|
|
{
|
|
input: `test:name{on!~"bar"}[4m:4s:]`,
|
|
fail: true,
|
|
},
|
|
{
|
|
input: `test:name{on!~"bar"}[4m::]`,
|
|
fail: true,
|
|
},
|
|
{
|
|
input: `test:name{on!~"bar"}[:4s]`,
|
|
fail: true,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
// TestLexer tests basic functionality of the lexer. More elaborate tests are implemented
|
|
// for the parser to avoid duplicated effort.
|
|
func TestLexer(t *testing.T) {
|
|
for _, typ := range tests {
|
|
t.Run(typ.name, func(t *testing.T) {
|
|
for i, test := range typ.tests {
|
|
l := &Lexer{
|
|
input: test.input,
|
|
seriesDesc: test.seriesDesc,
|
|
}
|
|
|
|
var out []Item
|
|
|
|
for l.state = lexStatements; l.state != nil; {
|
|
out = append(out, Item{})
|
|
l.NextItem(&out[len(out)-1])
|
|
}
|
|
|
|
lastItem := out[len(out)-1]
|
|
if test.fail {
|
|
hasError := false
|
|
for _, item := range out {
|
|
if item.Typ == ERROR {
|
|
hasError = true
|
|
}
|
|
}
|
|
if !hasError {
|
|
t.Logf("%d: input %q", i, test.input)
|
|
require.Fail(t, "expected lexing error but did not fail")
|
|
}
|
|
continue
|
|
}
|
|
if lastItem.Typ == ERROR {
|
|
t.Logf("%d: input %q", i, test.input)
|
|
require.Fail(t, "unexpected lexing error at position %d: %s", lastItem.Pos, lastItem)
|
|
}
|
|
|
|
eofItem := Item{EOF, posrange.Pos(len(test.input)), ""}
|
|
require.Equal(t, lastItem, eofItem, "%d: input %q", i, test.input)
|
|
|
|
out = out[:len(out)-1]
|
|
require.Equal(t, test.expected, out, "%d: input %q", i, test.input)
|
|
}
|
|
})
|
|
}
|
|
}
|