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utils.go
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/
utils.go
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// Package gotest contains internal functionality. Although this package
// contains one or more exported names it is not intended for public
// consumption. See the examples package for how to use this project.
package gotest
import (
"fmt"
"runtime"
"strings"
)
func FormatExternalFileAndLine() string {
file, line, _ := ResolveExternalCaller()
if line == -1 {
return "<unknown caller!>" // panic?
}
return fmt.Sprintf("%s:%d", file, line)
}
func ResolveExternalCaller() (file string, line int, name string) {
var caller_id uintptr
callers := runtime.Callers(0, callStack)
for x := 0; x < callers; x++ {
caller_id, file, line, _ = runtime.Caller(x)
if strings.HasSuffix(file, "_test.go") {
name = runtime.FuncForPC(caller_id).Name()
return
}
}
file, line, name = "<unkown file>", -1, "<unknown name>"
return // panic?
}
const maxStackDepth = 100 // This had better be enough...
var callStack []uintptr = make([]uintptr, maxStackDepth, maxStackDepth)