@@ -59,9 +59,12 @@ func (r *Result) Assert(t testingT, exp Expected) {

 	if err == nil {

 		return

 	}

-

-	_, file, line, _ := runtime.Caller(1)

-	t.Fatalf("at %s:%d\n%s", filepath.Base(file), line, err.Error())

+	_, file, line, ok := runtime.Caller(1)

+	if ok {

+		t.Fatalf("at %s:%d - %s", filepath.Base(file), line, err.Error())

+	} else {

+		t.Fatalf("(no file/line info) - %s", err.Error())

+	}

 }

 // Compare returns a formatted error with the command, stdout, stderr, exit

@@ -123,10 +126,11 @@ func (r *Result) String() string {

 	}

 	return fmt.Sprintf(`

-Command: %s

-ExitCode: %d%s, Error: %s

-Stdout: %v

-Stderr: %v

+Command:  %s

+ExitCode: %d%s

+Error:    %v

+Stdout:   %v

+Stderr:   %v

 `,

 		strings.Join(r.Cmd.Args, " "),

 		r.ExitCode,