1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #import <UIKit/UIKit.h>
7 #include "base/debug/debugger.h"
8 #include "base/logging.h"
9 #include "base/mac/scoped_nsautorelease_pool.h"
10 #include "base/mac/scoped_nsobject.h"
11 #include "base/message_loop/message_loop.h"
12 #include "base/message_loop/message_pump_default.h"
13 #include "base/test/test_suite.h"
15 // Springboard will kill any iOS app that fails to check in after launch within
16 // a given time. Starting a UIApplication before invoking TestSuite::Run
17 // prevents this from happening.
19 // InitIOSRunHook saves the TestSuite and argc/argv, then invoking
20 // RunTestsFromIOSApp calls UIApplicationMain(), providing an application
21 // delegate class: ChromeUnitTestDelegate. The delegate implements
22 // application:didFinishLaunchingWithOptions: to invoke the TestSuite's Run
25 // Since the executable isn't likely to be a real iOS UI, the delegate puts up a
26 // window displaying the app name. If a bunch of apps using MainHook are being
27 // run in a row, this provides an indication of which one is currently running.
29 static base::TestSuite* g_test_suite = NULL;
33 @interface UIApplication (Testing)
34 - (void) _terminateWithStatus:(int)status;
37 #if TARGET_IPHONE_SIMULATOR
38 // Xcode 6 introduced behavior in the iOS Simulator where the software
39 // keyboard does not appear if a hardware keyboard is connected. The following
40 // declaration allows this behavior to be overriden when the app starts up.
41 @interface UIKeyboardImpl
42 + (instancetype)sharedInstance;
43 - (void)setAutomaticMinimizationEnabled:(BOOL)enabled;
44 - (void)setSoftwareKeyboardShownByTouch:(BOOL)enabled;
46 #endif // TARGET_IPHONE_SIMULATOR
48 @interface ChromeUnitTestDelegate : NSObject {
50 base::scoped_nsobject<UIWindow> window_;
55 @implementation ChromeUnitTestDelegate
57 - (BOOL)application:(UIApplication *)application
58 didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
60 #if TARGET_IPHONE_SIMULATOR
61 // Xcode 6 introduced behavior in the iOS Simulator where the software
62 // keyboard does not appear if a hardware keyboard is connected. The following
63 // calls override this behavior by ensuring that the software keyboard is
65 [[UIKeyboardImpl sharedInstance] setAutomaticMinimizationEnabled:NO];
66 [[UIKeyboardImpl sharedInstance] setSoftwareKeyboardShownByTouch:YES];
67 #endif // TARGET_IPHONE_SIMULATOR
69 CGRect bounds = [[UIScreen mainScreen] bounds];
71 // Yes, this is leaked, it's just to make what's running visible.
72 window_.reset([[UIWindow alloc] initWithFrame:bounds]);
73 [window_ setBackgroundColor:[UIColor whiteColor]];
74 [window_ makeKeyAndVisible];
76 // Add a label with the app name.
77 UILabel* label = [[[UILabel alloc] initWithFrame:bounds] autorelease];
78 label.text = [[NSProcessInfo processInfo] processName];
79 label.textAlignment = NSTextAlignmentCenter;
80 [window_ addSubview:label];
82 if ([self shouldRedirectOutputToFile])
83 [self redirectOutput];
85 // Queue up the test run.
86 [self performSelector:@selector(runTests)
92 // Returns true if the gtest output should be redirected to a file, then sent
93 // to NSLog when compleete. This redirection is used because gtest only writes
94 // output to stdout, but results must be written to NSLog in order to show up in
95 // the device log that is retrieved from the device by the host.
96 - (BOOL)shouldRedirectOutputToFile {
97 #if !TARGET_IPHONE_SIMULATOR
98 return !base::debug::BeingDebugged();
99 #endif // TARGET_IPHONE_SIMULATOR
103 // Returns the path to the directory to store gtest output files.
104 - (NSString*)outputPath {
105 NSArray* searchPath =
106 NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
109 CHECK([searchPath count] > 0) << "Failed to get the Documents folder";
110 return [searchPath objectAtIndex:0];
113 // Returns the path to file that stdout is redirected to.
114 - (NSString*)stdoutPath {
115 return [[self outputPath] stringByAppendingPathComponent:@"stdout.log"];
118 // Returns the path to file that stderr is redirected to.
119 - (NSString*)stderrPath {
120 return [[self outputPath] stringByAppendingPathComponent:@"stderr.log"];
123 // Redirects stdout and stderr to files in the Documents folder in the app's
125 - (void)redirectOutput {
126 freopen([[self stdoutPath] UTF8String], "w+", stdout);
127 freopen([[self stderrPath] UTF8String], "w+", stderr);
130 // Reads the redirected gtest output from a file and writes it to NSLog.
131 - (void)writeOutputToNSLog {
132 // Close the redirected stdout and stderr files so that the content written to
133 // NSLog doesn't end up in these files.
136 for (NSString* path in @[ [self stdoutPath], [self stderrPath]]) {
137 NSString* content = [NSString stringWithContentsOfFile:path
138 encoding:NSUTF8StringEncoding
140 NSArray* lines = [content componentsSeparatedByCharactersInSet:
141 [NSCharacterSet newlineCharacterSet]];
143 NSLog(@"Writing contents of %@ to NSLog", path);
144 for (NSString* line in lines) {
151 int exitStatus = g_test_suite->Run();
153 if ([self shouldRedirectOutputToFile])
154 [self writeOutputToNSLog];
156 // If a test app is too fast, it will exit before Instruments has has a
157 // a chance to initialize and no test results will be seen.
158 // TODO(ios): crbug.com/137010 Figure out how much time is actually needed,
159 // and sleep only to make sure that much time has elapsed since launch.
160 [NSThread sleepUntilDate:[NSDate dateWithTimeIntervalSinceNow:2.0]];
163 // Use the hidden selector to try and cleanly take down the app (otherwise
164 // things can think the app crashed even on a zero exit status).
165 UIApplication* application = [UIApplication sharedApplication];
166 [application _terminateWithStatus:exitStatus];
175 scoped_ptr<base::MessagePump> CreateMessagePumpForUIForTests() {
176 // A default MessagePump will do quite nicely in tests.
177 return scoped_ptr<base::MessagePump>(new base::MessagePumpDefault());
184 void InitIOSTestMessageLoop() {
185 MessageLoop::InitMessagePumpForUIFactory(&CreateMessagePumpForUIForTests);
188 void InitIOSRunHook(TestSuite* suite, int argc, char* argv[]) {
189 g_test_suite = suite;
194 void RunTestsFromIOSApp() {
195 // When TestSuite::Run is invoked it calls RunTestsFromIOSApp(). On the first
196 // invocation, this method fires up an iOS app via UIApplicationMain. Since
197 // UIApplicationMain does not return until the app exits, control does not
198 // return to the initial TestSuite::Run invocation, so the app invokes
199 // TestSuite::Run a second time and since |ran_hook| is true at this point,
200 // this method is a no-op and control returns to TestSuite:Run so that test
201 // are executed. Once the app exits, RunTestsFromIOSApp calls exit() so that
202 // control is not returned to the initial invocation of TestSuite::Run.
203 static bool ran_hook = false;
206 mac::ScopedNSAutoreleasePool pool;
207 int exit_status = UIApplicationMain(g_argc, g_argv, nil,
208 @"ChromeUnitTestDelegate");