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// Copyright 2019 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 model
import (
"sort"
"testing"
)
func TestFingerprintFromString(t *testing.T) {
fs := "4294967295"
f, err := FingerprintFromString(fs)
if err != nil {
t.Errorf("unexpected error while getting Fingerprint from string: %s", err.Error())
}
expected := Fingerprint(285960729237)
if expected != f {
t.Errorf("expected to get %d, but got %d instead", f, expected)
}
f, err = ParseFingerprint(fs)
if err != nil {
t.Errorf("unexpected error while getting Fingerprint from string: %s", err.Error())
}
if expected != f {
t.Errorf("expected to get %d, but got %d instead", f, expected)
}
}
func TestFingerprintsSort(t *testing.T) {
fingerPrints := Fingerprints{
14695981039346656037,
285960729237,
0,
4294967295,
285960729237,
18446744073709551615,
}
sort.Sort(fingerPrints)
expected := Fingerprints{
0,
4294967295,
285960729237,
285960729237,
14695981039346656037,
18446744073709551615,
}
for i, f := range fingerPrints {
if f != expected[i] {
t.Errorf("expected Fingerprint %d, but got %d for index %d", expected[i], f, i)
}
}
}
func TestFingerprintSet(t *testing.T) {
// Testing with two sets of unequal length.
f := FingerprintSet{
14695981039346656037: struct{}{},
0: struct{}{},
4294967295: struct{}{},
285960729237: struct{}{},
18446744073709551615: struct{}{},
}
f2 := FingerprintSet{
285960729237: struct{}{},
}
if f.Equal(f2) {
t.Errorf("expected two FingerPrintSets of unequal length to be unequal")
}
// Testing with two unequal sets of equal length.
f = FingerprintSet{
14695981039346656037: struct{}{},
0: struct{}{},
4294967295: struct{}{},
}
f2 = FingerprintSet{
14695981039346656037: struct{}{},
0: struct{}{},
285960729237: struct{}{},
}
if f.Equal(f2) {
t.Errorf("expected two FingerPrintSets of unequal content to be unequal")
}
// Testing with equal sets of equal length.
f = FingerprintSet{
14695981039346656037: struct{}{},
0: struct{}{},
4294967295: struct{}{},
}
f2 = FingerprintSet{
14695981039346656037: struct{}{},
0: struct{}{},
4294967295: struct{}{},
}
if !f.Equal(f2) {
t.Errorf("expected two FingerPrintSets of equal content to be equal")
}
}
func TestFingerprintIntersection(t *testing.T) {
scenarios := []struct {
name string
input1 FingerprintSet
input2 FingerprintSet
expected FingerprintSet
}{
{
name: "two empty sets",
input1: FingerprintSet{},
input2: FingerprintSet{},
expected: FingerprintSet{},
},
{
name: "one empty set",
input1: FingerprintSet{
0: struct{}{},
},
input2: FingerprintSet{},
expected: FingerprintSet{},
},
{
name: "two non-empty unequal sets",
input1: FingerprintSet{
14695981039346656037: struct{}{},
0: struct{}{},
4294967295: struct{}{},
},
input2: FingerprintSet{
14695981039346656037: struct{}{},
0: struct{}{},
4294967295: struct{}{},
},
expected: FingerprintSet{
14695981039346656037: struct{}{},
0: struct{}{},
4294967295: struct{}{},
},
},
{
name: "two non-empty equal sets",
input1: FingerprintSet{
14695981039346656037: struct{}{},
0: struct{}{},
285960729237: struct{}{},
},
input2: FingerprintSet{
14695981039346656037: struct{}{},
0: struct{}{},
4294967295: struct{}{},
},
expected: FingerprintSet{
14695981039346656037: struct{}{},
0: struct{}{},
},
},
{
name: "two non-empty equal sets of unequal length",
input1: FingerprintSet{
14695981039346656037: struct{}{},
0: struct{}{},
285960729237: struct{}{},
},
input2: FingerprintSet{
14695981039346656037: struct{}{},
0: struct{}{},
},
expected: FingerprintSet{
14695981039346656037: struct{}{},
0: struct{}{},
},
},
}
for _, scenario := range scenarios {
s1 := scenario.input1
s2 := scenario.input2
actual := s1.Intersection(s2)
if !actual.Equal(scenario.expected) {
t.Errorf("expected %v to be equal to %v", actual, scenario.expected)
}
}
}