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// Copyright 2019 Google LLC. All Rights Reserved.
//
// 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 schedule
import (
"context"
"sync/atomic"
"testing"
"time"
)
func TestEvery(t *testing.T) {
for _, test := range []struct {
name string
period time.Duration
timeout time.Duration
wantExecutions uint32
}{
{
name: "0 runs",
period: 100 * time.Millisecond,
timeout: 0,
wantExecutions: 0,
},
{
name: "1 run",
period: 100 * time.Millisecond,
timeout: 50 * time.Millisecond,
wantExecutions: 1,
},
{
name: "3 runs 100ms apart",
period: 100 * time.Millisecond,
timeout: 250 * time.Millisecond,
wantExecutions: 3,
},
} {
t.Run(test.name, func(t *testing.T) {
test := test
t.Parallel()
ctx, cancel := context.WithTimeout(context.Background(), test.timeout)
defer cancel()
var counter uint32
Every(ctx, test.period, func(ctx context.Context) {
atomic.AddUint32(&counter, 1)
})
if got, want := atomic.LoadUint32(&counter), test.wantExecutions; got != want {
t.Fatalf("Every(%v, f): executed f %d times, want %d times", test.period, got, want)
}
})
}
}
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