litmus/pkg/time/time_test.go

73 lines
1.9 KiB
Go

/*
Copyright 2018 The OpenEBS 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 time
import (
"testing"
"time"
"github.com/stretchr/testify/require"
)
func TestWaitFor(t *testing.T) {
tests := []struct {
name string
argDuration string
wantSleep time.Duration
wantErr bool
}{
{"nanosecond", "1ns", time.Nanosecond, false},
{"microsecond", "1us", time.Microsecond, false},
{"millisecond", "1ms", time.Millisecond, false},
{"second", "1s", time.Second, false},
{"minute", "1m", time.Minute, false},
{"hour", "1h", time.Hour, false},
{"negative", "-1s", -time.Second, false},
{"fraction", "1.5s", 1500 * time.Millisecond, false},
{"combo", "1h45m", 105 * time.Minute, false},
{"error", "1a", 0, true},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
var gotSleep time.Duration
defer swapSleep(func(d time.Duration) { gotSleep = d })()
err := WaitFor(tt.argDuration)
if tt.wantErr {
require.Error(t, err)
} else {
require.NoError(t, err)
require.Equal(t, tt.wantSleep, gotSleep)
}
})
}
t.Run("real sleep is called", func(t *testing.T) {
start := time.Now()
err := WaitFor("100ms")
require.NoError(t, err)
require.Condition(t, func() bool { return time.Since(start) > 100*time.Millisecond })
})
}
func swapSleep(newSleep func(time.Duration)) func() {
oldSleep := sleep
sleep = newSleep
return func() { sleep = oldSleep }
}