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// SPDX-License-Identifier: GPL-3.0-or-later
package selector
import (
"testing"
"github.com/prometheus/prometheus/model/labels"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestTrueSelector_Matches(t *testing.T) {
tests := map[string]struct {
sr trueSelector
lbs labels.Labels
expected bool
}{
"not empty labels": {
lbs: labels.Labels{{Name: labels.MetricName, Value: "name"}},
expected: true,
},
"empty labels": {
expected: true,
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
if test.expected {
assert.True(t, test.sr.Matches(test.lbs))
} else {
assert.False(t, test.sr.Matches(test.lbs))
}
})
}
}
func TestFalseSelector_Matches(t *testing.T) {
tests := map[string]struct {
sr falseSelector
lbs labels.Labels
expected bool
}{
"not empty labels": {
lbs: labels.Labels{{Name: labels.MetricName, Value: "name"}},
expected: false,
},
"empty labels": {
expected: false,
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
if test.expected {
assert.True(t, test.sr.Matches(test.lbs))
} else {
assert.False(t, test.sr.Matches(test.lbs))
}
})
}
}
func TestNegSelector_Matches(t *testing.T) {
tests := map[string]struct {
sr negSelector
lbs labels.Labels
expected bool
}{
"true matcher": {
sr: negSelector{trueSelector{}},
lbs: labels.Labels{{Name: labels.MetricName, Value: "name"}},
expected: false,
},
"false matcher": {
sr: negSelector{falseSelector{}},
lbs: labels.Labels{{Name: labels.MetricName, Value: "name"}},
expected: true,
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
if test.expected {
assert.True(t, test.sr.Matches(test.lbs))
} else {
assert.False(t, test.sr.Matches(test.lbs))
}
})
}
}
func TestAndSelector_Matches(t *testing.T) {
tests := map[string]struct {
sr andSelector
lbs labels.Labels
expected bool
}{
"true, true": {
sr: andSelector{lhs: trueSelector{}, rhs: trueSelector{}},
expected: true,
},
"true, false": {
sr: andSelector{lhs: trueSelector{}, rhs: falseSelector{}},
expected: false,
},
"false, true": {
sr: andSelector{lhs: trueSelector{}, rhs: falseSelector{}},
expected: false,
},
"false, false": {
sr: andSelector{lhs: falseSelector{}, rhs: falseSelector{}},
expected: false,
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
assert.Equal(t, test.expected, test.sr.Matches(test.lbs))
})
}
}
func TestOrSelector_Matches(t *testing.T) {
tests := map[string]struct {
sr orSelector
lbs labels.Labels
expected bool
}{
"true, true": {
sr: orSelector{lhs: trueSelector{}, rhs: trueSelector{}},
expected: true,
},
"true, false": {
sr: orSelector{lhs: trueSelector{}, rhs: falseSelector{}},
expected: true,
},
"false, true": {
sr: orSelector{lhs: trueSelector{}, rhs: falseSelector{}},
expected: true,
},
"false, false": {
sr: orSelector{lhs: falseSelector{}, rhs: falseSelector{}},
expected: false,
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
assert.Equal(t, test.expected, test.sr.Matches(test.lbs))
})
}
}
func Test_And(t *testing.T) {
tests := map[string]struct {
srs []Selector
expected Selector
}{
"2 selectors": {
srs: []Selector{trueSelector{}, trueSelector{}},
expected: andSelector{
lhs: trueSelector{},
rhs: trueSelector{},
},
},
"4 selectors": {
srs: []Selector{trueSelector{}, trueSelector{}, trueSelector{}, trueSelector{}},
expected: andSelector{
lhs: andSelector{
lhs: andSelector{
lhs: trueSelector{},
rhs: trueSelector{},
},
rhs: trueSelector{},
},
rhs: trueSelector{}},
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
require.GreaterOrEqual(t, len(test.srs), 2)
s := And(test.srs[0], test.srs[1], test.srs[2:]...)
assert.Equal(t, test.expected, s)
})
}
}
func Test_Or(t *testing.T) {
tests := map[string]struct {
srs []Selector
expected Selector
}{
"2 selectors": {
srs: []Selector{trueSelector{}, trueSelector{}},
expected: orSelector{
lhs: trueSelector{},
rhs: trueSelector{},
},
},
"4 selectors": {
srs: []Selector{trueSelector{}, trueSelector{}, trueSelector{}, trueSelector{}},
expected: orSelector{
lhs: orSelector{
lhs: orSelector{
lhs: trueSelector{},
rhs: trueSelector{},
},
rhs: trueSelector{},
},
rhs: trueSelector{}},
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
require.GreaterOrEqual(t, len(test.srs), 2)
s := Or(test.srs[0], test.srs[1], test.srs[2:]...)
assert.Equal(t, test.expected, s)
})
}
}
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