blob: 86d2e6ce171cd86f93db810fcabf89a7b4eaab50 [file] [log] [blame]
* Copyright 2017 The WebRTC Project Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
#import <UIKit/UIKit.h>
#include "test/ios/coverage_util_ios.h"
#include "test/ios/test_support.h"
#include "test/testsupport/perf_test.h"
#import "sdk/objc/helpers/NSString+StdString.h"
// Springboard will kill any iOS app that fails to check in after launch within
// a given time. Starting a UIApplication before invoking TestSuite::Run
// prevents this from happening.
// InitIOSRunHook saves the TestSuite and argc/argv, then invoking
// RunTestsFromIOSApp calls UIApplicationMain(), providing an application
// delegate class: WebRtcUnitTestDelegate. The delegate implements
// application:didFinishLaunchingWithOptions: to invoke the TestSuite's Run
// method.
// Since the executable isn't likely to be a real iOS UI, the delegate puts up a
// window displaying the app name. If a bunch of apps using MainHook are being
// run in a row, this provides an indication of which one is currently running.
static int (*g_test_suite)(void) = NULL;
static int g_argc;
static char **g_argv;
static bool g_write_perf_output;
static absl::optional<std::vector<std::string>> g_metrics_to_plot;
@interface UIApplication (Testing)
- (void)_terminateWithStatus:(int)status;
@interface WebRtcUnitTestDelegate : NSObject {
UIWindow *_window;
- (void)runTests;
@implementation WebRtcUnitTestDelegate
- (BOOL)application:(UIApplication *)application
didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
CGRect bounds = [[UIScreen mainScreen] bounds];
_window = [[UIWindow alloc] initWithFrame:bounds];
[_window setBackgroundColor:[UIColor whiteColor]];
[_window makeKeyAndVisible];
// Add a label with the app name.
UILabel *label = [[UILabel alloc] initWithFrame:bounds];
label.text = [[NSProcessInfo processInfo] processName];
label.textAlignment = NSTextAlignmentCenter;
[_window addSubview:label];
// An NSInternalInconsistencyException is thrown if the app doesn't have a
// root view controller. Set an empty one here.
[_window setRootViewController:[[UIViewController alloc] init]];
// Queue up the test run.
[self performSelector:@selector(runTests) withObject:nil afterDelay:0.1];
return YES;
- (void)runTests {
int exitStatus = g_test_suite();
if (g_write_perf_output) {
// Stores data into a proto file under the app's document directory.
NSString *fileName = @"perftest-output.pb";
NSArray<NSString*>* outputDirectories = NSSearchPathForDirectoriesInDomains(
NSDocumentDirectory, NSUserDomainMask, YES);
if ([outputDirectories count] != 0) {
NSString* outputPath =
[outputDirectories[0] stringByAppendingPathComponent:fileName];
if (!webrtc::test::WritePerfResults([NSString stdStringForString:outputPath])) {
if (g_metrics_to_plot) {
// If a test app is too fast, it will exit before Instruments has has a
// a chance to initialize and no test results will be seen.
// TODO( Figure out how much time is actually needed, and
// sleep only to make sure that much time has elapsed since launch.
[NSThread sleepUntilDate:[NSDate dateWithTimeIntervalSinceNow:2.0]];
// Use the hidden selector to try and cleanly take down the app (otherwise
// things can think the app crashed even on a zero exit status).
UIApplication *application = [UIApplication sharedApplication];
[application _terminateWithStatus:exitStatus];
namespace rtc {
namespace test {
// Note: This is not thread safe, and must be called from the same thread as
// runTests above.
void InitTestSuite(int (*test_suite)(void),
int argc,
char *argv[],
bool write_perf_output,
absl::optional<std::vector<std::string>> metrics_to_plot) {
g_test_suite = test_suite;
g_argc = argc;
g_argv = argv;
g_write_perf_output = write_perf_output;
g_metrics_to_plot = std::move(metrics_to_plot);
void RunTestsFromIOSApp() {
@autoreleasepool {
exit(UIApplicationMain(g_argc, g_argv, nil, @"WebRtcUnitTestDelegate"));
} // namespace test
} // namespace rtc