What steps will reproduce the problem?
1. Run "go test -v" on this file:
package p
import (
"bytes"
"fmt"
"testing"
)
func TestTest(t *testing.T) {
buf := new(bytes.Buffer)
for i := 1; i < 50000; i++ {
fmt.Fprintf(buf, "number %d\n", i)
}
t.Log(buf.String())
}
What is the expected output? What do you see instead?
Expected:
=== RUN TestTest
--- PASS: TestTest (0.06 seconds)
pkg_test.go:14: number 1
number 2
number 3
...
number 49997
number 49998
number 49999
PASS
ok testmap 10.129s
Got:
=== RUN TestTest
throw: runtime: out of memory
goroutine 3 [running]:
----- stack segment boundary -----
testing.decorate(0xf8b095f00d, 0x9400d, 0x9401a00000000, 0xf8b095f00d, 0x9400d, ...)
/usr/lib/go/src/pkg/testing/testing.go:149 +0x21a
testing.decorate(0xf8b095f000, 0x9401a, 0x9402600000000, 0xf8b08ca00d, 0x94019, ...)
/usr/lib/go/src/pkg/testing/testing.go:158 +0x33c
testing.decorate(0xf8b08ca000, 0x94026, 0x9403200000000, 0xf8b082400d, 0x94025, ...)
/usr/lib/go/src/pkg/testing/testing.go:158 +0x33c
...
testing.decorate(0xf8ad642000, 0x943f2, 0x943fe00000000, 0xf8ad5ad00d, 0x943f1, ...)
/usr/lib/go/src/pkg/testing/testing.go:158 +0x33c
testing.decorate(0xf8ad5ad000, 0x943fe, 0x9440a00000000, 0xf8ad50700d, 0x943fd, ...)
/usr/lib/go/src/pkg/testing/testing.go:158 +0x33c
created by testing.RunTests
/usr/lib/go/src/pkg/testing/testing.go:349 +0x782
goroutine 1 [chan receive]:
testing.RunTests(0x400c00, 0x5604a8, 0x100000001, 0x1, 0x5564a0, ...)
/usr/lib/go/src/pkg/testing/testing.go:350 +0x7a5
testing.Main(0x400c00, 0x5604a8, 0x100000001, 0x5657c0, 0x0, ...)
/usr/lib/go/src/pkg/testing/testing.go:285 +0x7a
main.main()
/tmp/go-build554597359/testmap/_test/_testmain.go:43 +0x91
goroutine 2 [syscall]:
created by runtime.main
/build/src/go/src/pkg/runtime/proc.c:221
exit status 2
FAIL testmap 1.840s
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