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In latest go versions TestWatcher fails pretty often, because it is "more concurrent" now. Reproducible with go master: while go test github.com/mholt/caddy/middleware/markdown; do :; done Signed-off-by: Alexander Morozov <lk4d4@docker.com>
43 lines
809 B
Go
43 lines
809 B
Go
package markdown
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import (
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"fmt"
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"strings"
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"sync"
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"testing"
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"time"
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)
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func TestWatcher(t *testing.T) {
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expected := "12345678"
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interval := time.Millisecond * 100
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i := 0
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out := ""
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stopChan := TickerFunc(interval, func() {
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i++
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out += fmt.Sprint(i)
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})
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// wait little more because of concurrency
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time.Sleep(interval * 9)
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stopChan <- struct{}{}
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if !strings.HasPrefix(out, expected) {
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t.Fatalf("Expected to have prefix %v, found %v", expected, out)
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}
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out = ""
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i = 0
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var mu sync.Mutex
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stopChan = TickerFunc(interval, func() {
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i++
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mu.Lock()
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out += fmt.Sprint(i)
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mu.Unlock()
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})
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time.Sleep(interval * 10)
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mu.Lock()
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res := out
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mu.Unlock()
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if !strings.HasPrefix(res, expected) || res == expected {
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t.Fatalf("expected (%v) must be a proper prefix of out(%v).", expected, out)
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}
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}
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