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cmd/pprof: debug TestDisasm

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If pprof -disasm fails, print the profile content for debugging.

For #56574.

Change-Id: I5d9377b7fb80f6b85317bc53f3ebb18f70c2f06d
Reviewed-on: https://go-review.googlesource.com/c/go/+/450281
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
This commit is contained in:
Cherry Mui 2022-11-14 16:34:16 -05:00
parent febe7b8e2a
commit 362713183a
1 changed files with 12 additions and 2 deletions
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14
src/cmd/pprof/pprof_test.go
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@ -115,12 +115,22 @@ func TestDisasm(t *testing.T) {
cmd = exec.Command(pprofExe, "-disasm", "main.main", cpuExe, profile)
out, err = cmd.CombinedOutput()
if err != nil {
t.Fatalf("pprof failed: %v\n%s", err, out)
t.Errorf("pprof -disasm failed: %v\n%s", err, out)
// Try to print out profile content for debugging.
cmd = exec.Command(pprofExe, "-raw", cpuExe, profile)
out, err = cmd.CombinedOutput()
if err != nil {
t.Logf("pprof -raw failed: %v\n%s", err, out)
} else {
t.Logf("profile content:\n%s", out)
}
return
}
sout := string(out)
want := "ROUTINE ======================== main.main"
if !strings.Contains(sout, want) {
t.Errorf("pprof disasm got %s want contains %q", sout, want)
t.Errorf("pprof -disasm got %s want contains %q", sout, want)
}
}