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"
14 #include "testing/coverage_util_ios.h"
16 // Springboard will kill any iOS app that fails to check in after launch within
17 // a given time. Starting a UIApplication before invoking TestSuite::Run
18 // prevents this from happening.
20 // InitIOSRunHook saves the TestSuite and argc/argv, then invoking
21 // RunTestsFromIOSApp calls UIApplicationMain(), providing an application
22 // delegate class: ChromeUnitTestDelegate. The delegate implements
23 // application:didFinishLaunchingWithOptions: to invoke the TestSuite's Run
26 // Since the executable isn't likely to be a real iOS UI, the delegate puts up a
27 // window displaying the app name. If a bunch of apps using MainHook are being
28 // run in a row, this provides an indication of which one is currently running.
30 static base::TestSuite* g_test_suite = NULL;
34 @interface UIApplication (Testing)
35 - (void) _terminateWithStatus:(int)status;
38 #if TARGET_IPHONE_SIMULATOR
39 // Xcode 6 introduced behavior in the iOS Simulator where the software
40 // keyboard does not appear if a hardware keyboard is connected. The following
41 // declaration allows this behavior to be overriden when the app starts up.
42 @interface UIKeyboardImpl
43 + (instancetype)sharedInstance;
44 - (void)setAutomaticMinimizationEnabled:(BOOL)enabled;
45 - (void)setSoftwareKeyboardShownByTouch:(BOOL)enabled;
47 #endif // TARGET_IPHONE_SIMULATOR
49 @interface ChromeUnitTestDelegate : NSObject {
51 base::scoped_nsobject<UIWindow> window_;
56 @implementation ChromeUnitTestDelegate
58 - (BOOL)application:(UIApplication *)application
59 didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
61 #if TARGET_IPHONE_SIMULATOR
62 // Xcode 6 introduced behavior in the iOS Simulator where the software
63 // keyboard does not appear if a hardware keyboard is connected. The following
64 // calls override this behavior by ensuring that the software keyboard is
66 [[UIKeyboardImpl sharedInstance] setAutomaticMinimizationEnabled:NO];
67 [[UIKeyboardImpl sharedInstance] setSoftwareKeyboardShownByTouch:YES];
68 #endif // TARGET_IPHONE_SIMULATOR
70 CGRect bounds = [[UIScreen mainScreen] bounds];
72 // Yes, this is leaked, it's just to make what's running visible.
73 window_.reset([[UIWindow alloc] initWithFrame:bounds]);
74 [window_ setBackgroundColor:[UIColor whiteColor]];
75 [window_ makeKeyAndVisible];
77 // Add a label with the app name.
78 UILabel* label = [[[UILabel alloc] initWithFrame:bounds] autorelease];
79 label.text = [[NSProcessInfo processInfo] processName];
80 label.textAlignment = NSTextAlignmentCenter;
81 [window_ addSubview:label];
83 if ([self shouldRedirectOutputToFile])
84 [self redirectOutput];
86 // Queue up the test run.
87 [self performSelector:@selector(runTests)
93 // Returns true if the gtest output should be redirected to a file, then sent
94 // to NSLog when compleete. This redirection is used because gtest only writes
95 // output to stdout, but results must be written to NSLog in order to show up in
96 // the device log that is retrieved from the device by the host.
97 - (BOOL)shouldRedirectOutputToFile {
98 #if !TARGET_IPHONE_SIMULATOR
99 return !base::debug::BeingDebugged();
100 #endif // TARGET_IPHONE_SIMULATOR
104 // Returns the path to the directory to store gtest output files.
105 - (NSString*)outputPath {
106 NSArray* searchPath =
107 NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
110 CHECK([searchPath count] > 0) << "Failed to get the Documents folder";
111 return [searchPath objectAtIndex:0];
114 // Returns the path to file that stdout is redirected to.
115 - (NSString*)stdoutPath {
116 return [[self outputPath] stringByAppendingPathComponent:@"stdout.log"];
119 // Returns the path to file that stderr is redirected to.
120 - (NSString*)stderrPath {
121 return [[self outputPath] stringByAppendingPathComponent:@"stderr.log"];
124 // Redirects stdout and stderr to files in the Documents folder in the app's
126 - (void)redirectOutput {
127 freopen([[self stdoutPath] UTF8String], "w+", stdout);
128 freopen([[self stderrPath] UTF8String], "w+", stderr);
131 // Reads the redirected gtest output from a file and writes it to NSLog.
132 - (void)writeOutputToNSLog {
133 // Close the redirected stdout and stderr files so that the content written to
134 // NSLog doesn't end up in these files.
137 for (NSString* path in @[ [self stdoutPath], [self stderrPath]]) {
138 NSString* content = [NSString stringWithContentsOfFile:path
139 encoding:NSUTF8StringEncoding
141 NSArray* lines = [content componentsSeparatedByCharactersInSet:
142 [NSCharacterSet newlineCharacterSet]];
144 NSLog(@"Writing contents of %@ to NSLog", path);
145 for (NSString* line in lines) {
152 int exitStatus = g_test_suite->Run();
154 if ([self shouldRedirectOutputToFile])
155 [self writeOutputToNSLog];
157 // If a test app is too fast, it will exit before Instruments has has a
158 // a chance to initialize and no test results will be seen.
159 // TODO(ios): crbug.com/137010 Figure out how much time is actually needed,
160 // and sleep only to make sure that much time has elapsed since launch.
161 [NSThread sleepUntilDate:[NSDate dateWithTimeIntervalSinceNow:2.0]];
164 // Use the hidden selector to try and cleanly take down the app (otherwise
165 // things can think the app crashed even on a zero exit status).
166 UIApplication* application = [UIApplication sharedApplication];
167 [application _terminateWithStatus:exitStatus];
169 coverage_util::FlushCoverageDataIfNecessary();
178 scoped_ptr<base::MessagePump> CreateMessagePumpForUIForTests() {
179 // A default MessagePump will do quite nicely in tests.
180 return scoped_ptr<base::MessagePump>(new base::MessagePumpDefault());
187 void InitIOSTestMessageLoop() {
188 MessageLoop::InitMessagePumpForUIFactory(&CreateMessagePumpForUIForTests);
191 void InitIOSRunHook(TestSuite* suite, int argc, char* argv[]) {
192 g_test_suite = suite;
197 void RunTestsFromIOSApp() {
198 // When TestSuite::Run is invoked it calls RunTestsFromIOSApp(). On the first
199 // invocation, this method fires up an iOS app via UIApplicationMain. Since
200 // UIApplicationMain does not return until the app exits, control does not
201 // return to the initial TestSuite::Run invocation, so the app invokes
202 // TestSuite::Run a second time and since |ran_hook| is true at this point,
203 // this method is a no-op and control returns to TestSuite:Run so that test
204 // are executed. Once the app exits, RunTestsFromIOSApp calls exit() so that
205 // control is not returned to the initial invocation of TestSuite::Run.
206 static bool ran_hook = false;
209 mac::ScopedNSAutoreleasePool pool;
210 int exit_status = UIApplicationMain(g_argc, g_argv, nil,
211 @"ChromeUnitTestDelegate");