97 lines
2.1 KiB
Go
97 lines
2.1 KiB
Go
// Copyright 2015 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package wait
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import (
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"fmt"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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)
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func TestWait(t *testing.T) {
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const eid = 1
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wt := New()
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ch := wt.Register(eid)
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wt.Trigger(eid, "foo")
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v := <-ch
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g, w := fmt.Sprintf("%v (%T)", v, v), "foo (string)"
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assert.Equalf(t, g, w, "<-ch = %v, want %v", g, w)
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if g := <-ch; g != nil {
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t.Errorf("unexpected non-nil value: %v (%T)", g, g)
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}
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}
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func TestRegisterDupPanic(t *testing.T) {
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const eid = 1
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wt := New()
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ch1 := wt.Register(eid)
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panicC := make(chan struct{}, 1)
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func() {
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defer func() {
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if r := recover(); r != nil {
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panicC <- struct{}{}
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}
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}()
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wt.Register(eid)
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}()
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select {
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case <-panicC:
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case <-time.After(1 * time.Second):
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t.Errorf("failed to receive panic")
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}
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wt.Trigger(eid, "foo")
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<-ch1
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}
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func TestTriggerDupSuppression(t *testing.T) {
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const eid = 1
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wt := New()
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ch := wt.Register(eid)
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wt.Trigger(eid, "foo")
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wt.Trigger(eid, "bar")
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v := <-ch
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g, w := fmt.Sprintf("%v (%T)", v, v), "foo (string)"
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assert.Equalf(t, g, w, "<-ch = %v, want %v", g, w)
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if g := <-ch; g != nil {
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t.Errorf("unexpected non-nil value: %v (%T)", g, g)
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}
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}
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func TestIsRegistered(t *testing.T) {
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wt := New()
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wt.Register(0)
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wt.Register(1)
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wt.Register(2)
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for i := uint64(0); i < 3; i++ {
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assert.Truef(t, wt.IsRegistered(i), "event ID %d isn't registered", i)
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}
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assert.Falsef(t, wt.IsRegistered(4), "event ID 4 shouldn't be registered")
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wt.Trigger(0, "foo")
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assert.Falsef(t, wt.IsRegistered(0), "event ID 0 is already triggered, shouldn't be registered")
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}
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