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// Copyright 2019 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package gtest
import (
// Report is a parsed gtest output report.
// See for details.
// Note: at the moment, only a subset of the report is parsed. More can be
// added upon requirements.
// TODO( Consider switching to use JSON, which is supported
// gtest 1.8.1 or later.
type Report struct {
Suites []*TestSuite `xml:"testsuite"`
// TestSuite represents a testsuite run in Report.
type TestSuite struct {
Name string `xml:"name,attr"`
Cases []*TestCase `xml:"testcase"`
// TestCase represents a testcase run in TestSuite.
type TestCase struct {
Name string `xml:"name,attr"`
Failures []Failure `xml:"failure"`
// Failure represents a test validation failure in TestCase.
type Failure struct {
Message string `xml:"message,attr"`
// FailedTestNames returns an array of failed test names, in the
// "TestSuite.TestCase" format. If no error is found, returns nil.
// This walks through whole the report.
func (r *Report) FailedTestNames() []string {
var ret []string
for _, s := range r.Suites {
for _, c := range s.Cases {
if len(c.Failures) > 0 {
ret = append(ret, fmt.Sprintf("%s.%s", s.Name, c.Name))
return ret
// ParseReport parses the XML gtest output report at path.
func ParseReport(path string) (*Report, error) {
b, err := ioutil.ReadFile(path)
if err != nil {
return nil, errors.Wrap(err, "failed to read")
return parseReportInternal(b)
func parseReportInternal(b []byte) (*Report, error) {
ret := &Report{}
if err := xml.Unmarshal(b, ret); err != nil {
return nil, errors.Wrap(err, "failed to parse gtest XML report")
return ret, nil