prometheus/promql/printer_test.go
Brian Brazil 1d08c4fef0 Add 'ignoring' as modifier for binops.
Where 'on' uses the given labels to match,
'ignoring' uses all other labels to match.

group_left/right is not supported yet.
2016-04-21 19:34:29 +01:00

73 lines
1.6 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 promql
import (
"testing"
)
func TestExprString(t *testing.T) {
// A list of valid expressions that are expected to be
// returned as out when calling String(). If out is empty the output
// is expected to equal the input.
inputs := []struct {
in, out string
}{
{
in: `sum(task:errors:rate10s{job="s"}) BY (code)`,
},
{
in: `sum(task:errors:rate10s{job="s"}) BY (code) KEEP_COMMON`,
},
{
in: `sum(task:errors:rate10s{job="s"}) KEEP_COMMON`,
},
{
in: `sum(task:errors:rate10s{job="s"}) WITHOUT (instance)`,
},
{
in: `a - ON(b) c`,
},
{
in: `a - IGNORING(b) c`,
},
{
in: `up > BOOL 0`,
},
{
in: `a OFFSET 1m`,
},
{
in: `a{c="d"}[5m] OFFSET 1m`,
},
{
in: `a[5m] OFFSET 1m`,
},
}
for _, test := range inputs {
expr, err := ParseExpr(test.in)
if err != nil {
t.Fatalf("parsing error for %q: %s", test.in, err)
}
exp := test.in
if test.out != "" {
exp = test.out
}
if expr.String() != exp {
t.Fatalf("expected %q to be returned as:\n%s\ngot:\n%s\n", test.in, exp, expr.String())
}
}
}