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runtime: better error from TestGcSys when gc is disabled
R=golang-dev, bradfitz CC=golang-dev https://golang.org/cl/7390047
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@ -5,11 +5,15 @@
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package runtime_test
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import (
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"os"
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"runtime"
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"testing"
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)
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func TestGcSys(t *testing.T) {
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if os.Getenv("GOGC") == "off" {
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t.Fatalf("GOGC=off in environment; test cannot pass")
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}
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defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(1))
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memstats := new(runtime.MemStats)
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runtime.GC()
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