stack/stack-go19_test.go at master · go-stack/stack · GitHub

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// +build go1.9

package stack_test

import (
"runtime"
"testing"

"github.com/go-stack/stack"
)

funcTestCallerInlinedPanic(t*testing.T) {
t.Parallel()

varlineint

deferfunc() {
ifrecover() !=nil {
varpcs [32]uintptr
n:=runtime.Callers(1, pcs[:])
frames:=runtime.CallersFrames(pcs[:n])
// count frames to runtime.sigpanic
panicIdx:=0
for {
f, more:=frames.Next()
iff.Function=="runtime.sigpanic" {
break
 }
panicIdx++
if!more {
t.Fatal("no runtime.sigpanic entry on the stack")
 }
 }

c:=stack.Caller(panicIdx)
ifgot, want:=c.Frame().Function, "runtime.sigpanic"; got!=want {
t.Errorf("sigpanic frame: got name == %v, want name == %v", got, want)
 }

c1:=stack.Caller(panicIdx+1)
ifgot, want:=c1.Frame().Function, "github.com/go-stack/stack_test.inlinablePanic"; got!=want {
t.Errorf("TestCallerInlinedPanic frame: got name == %v, want name == %v", got, want)
 }
ifgot, want:=c1.Frame().Line, line; got!=want {
t.Errorf("TestCallerInlinedPanic frame: got line == %v, want line == %v", got, want)
 }
 }
	}()

doPanic(t, &line)
t.Fatal("failed to panic")
}

funcdoPanic(t*testing.T, panicLine*int) {
_, _, line, ok:=runtime.Caller(0)
*panicLine=line+11// adjust to match line of panic below
if!ok {
t.Fatal("runtime.Caller(0) failed")
	}
inlinablePanic()
}

funcinlinablePanic() {
// Initiate a sigpanic.
varx*uintptr
_=*x
}