mirror of
https://github.com/prometheus/prometheus.git
synced 2024-12-26 22:19:40 -08:00
51 lines
1.5 KiB
Go
51 lines
1.5 KiB
Go
|
// Copyright 2024 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 almost
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"math"
|
||
|
|
"testing"
|
||
|
|
|
||
|
|
"github.com/prometheus/prometheus/model/value"
|
||
|
|
)
|
||
|
|
|
||
|
|
func TestEqual(t *testing.T) {
|
||
|
|
staleNaN := math.Float64frombits(value.StaleNaN)
|
||
|
|
tests := []struct {
|
||
|
|
a float64
|
||
|
|
b float64
|
||
|
|
epsilon float64
|
||
|
|
want bool
|
||
|
|
}{
|
||
|
|
{0.0, 0.0, 0.0, true},
|
||
|
|
{0.0, 0.1, 0.0, false},
|
||
|
|
{1.0, 1.1, 0.1, true},
|
||
|
|
{-1.0, -1.1, 0.1, true},
|
||
|
|
{math.MaxFloat64, math.MaxFloat64 / 10, 0.1, false},
|
||
|
|
{1.0, math.NaN(), 0.1, false},
|
||
|
|
{math.NaN(), math.NaN(), 0.1, true},
|
||
|
|
{math.NaN(), staleNaN, 0.1, false},
|
||
|
|
{staleNaN, math.NaN(), 0.1, false},
|
||
|
|
{staleNaN, staleNaN, 0.1, true},
|
||
|
|
}
|
||
|
|
for _, tt := range tests {
|
||
|
|
t.Run(fmt.Sprintf("%v,%v,%v", tt.a, tt.b, tt.epsilon), func(t *testing.T) {
|
||
|
|
if got := Equal(tt.a, tt.b, tt.epsilon); got != tt.want {
|
||
|
|
t.Errorf("Equal(%v,%v,%v) = %v, want %v", tt.a, tt.b, tt.epsilon, got, tt.want)
|
||
|
|
}
|
||
|
|
})
|
||
|
|
}
|
||
|
|
}
|