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[query] add specialized matchers for empty EQ/NEQ matchers (#1986)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| // Copyright (c) 2019 Uber Technologies, Inc. | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in | ||
| // all copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| // THE SOFTWARE. | ||
|
|
||
| package promql | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "testing" | ||
|
|
||
| "github.com/m3db/m3/src/query/models" | ||
|
|
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| "github.com/prometheus/prometheus/pkg/labels" | ||
| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
| ) | ||
|
|
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| func TestLabelMatchesToModelMatcher(t *testing.T) { | ||
| opts := models.NewTagOptions() | ||
|
|
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| labels := []*labels.Matcher{ | ||
| &labels.Matcher{ | ||
| Type: labels.MatchEqual, | ||
| Name: "foo", | ||
| }, | ||
| &labels.Matcher{ | ||
| Type: labels.MatchEqual, | ||
| Name: "foo", | ||
| Value: "bar", | ||
| }, | ||
| &labels.Matcher{ | ||
| Type: labels.MatchNotEqual, | ||
| Name: "foo", | ||
| }, | ||
| &labels.Matcher{ | ||
| Type: labels.MatchNotEqual, | ||
| Name: "foo", | ||
| Value: "bar", | ||
| }, | ||
| &labels.Matcher{ | ||
| Type: labels.MatchRegexp, | ||
| Name: "foo", | ||
| Value: ".*", | ||
| }, | ||
| &labels.Matcher{ | ||
| Type: labels.MatchNotRegexp, | ||
| Name: "foo", | ||
| Value: ".*", | ||
| }, | ||
| } | ||
|
|
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| matchers, err := LabelMatchersToModelMatcher(labels, opts) | ||
| assert.NoError(t, err) | ||
|
|
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| expected := models.Matchers{ | ||
| models.Matcher{ | ||
| Type: models.MatchNotField, | ||
| Name: []byte("foo"), | ||
| Value: []byte{}, | ||
| }, | ||
| models.Matcher{ | ||
| Type: models.MatchEqual, | ||
| Name: []byte("foo"), | ||
| Value: []byte("bar"), | ||
| }, | ||
| models.Matcher{ | ||
| Type: models.MatchField, | ||
| Name: []byte("foo"), | ||
| Value: []byte{}, | ||
| }, | ||
| models.Matcher{ | ||
| Type: models.MatchNotEqual, | ||
| Name: []byte("foo"), | ||
| Value: []byte("bar"), | ||
| }, | ||
| models.Matcher{ | ||
| Type: models.MatchRegexp, | ||
| Name: []byte("foo"), | ||
| Value: []byte(".*"), | ||
| }, | ||
| models.Matcher{ | ||
| Type: models.MatchNotRegexp, | ||
| Name: []byte("foo"), | ||
| Value: []byte(".*"), | ||
| }, | ||
| } | ||
|
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| require.Equal(t, len(expected), len(matchers)) | ||
| equalish := func(a, b models.Matcher) bool { | ||
| return bytes.Equal(a.Name, b.Name) && | ||
| bytes.Equal(a.Value, b.Value) && | ||
| a.Type == b.Type | ||
| } | ||
|
|
||
| for i, ex := range expected { | ||
| assert.True(t, equalish(ex, matchers[i])) | ||
| } | ||
| } |
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