mirror of
https://github.com/zhigang1992/react-native.git
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35da174339
Summary: The module initialization process is complex and full of race conditions. This diff adds a set of unit tests that verify that modules setup happens in the correct order, and enforces all the various conditions for main/background init. Reviewed By: javache Differential Revision: D2994145 fb-gh-sync-id: 92ea84508cdeeb280ff0fb9e9b2dffa8dbc37e66 shipit-source-id: 92ea84508cdeeb280ff0fb9e9b2dffa8dbc37e66
143 lines
3.5 KiB
Objective-C
143 lines
3.5 KiB
Objective-C
/**
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* The examples provided by Facebook are for non-commercial testing and
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* evaluation purposes only.
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*
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* Facebook reserves all rights not expressly granted.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL
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* FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#import <Foundation/Foundation.h>
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#import <XCTest/XCTest.h>
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#import "RCTBridge.h"
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#import "RCTBridge+Private.h"
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#import "RCTBridgeModule.h"
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#import "RCTUtils.h"
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#import "RCTUIManager.h"
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#import "RCTViewManager.h"
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#define RUN_RUNLOOP_WHILE(CONDITION) \
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{ \
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NSDate *timeout = [NSDate dateWithTimeIntervalSinceNow:5]; \
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while ((CONDITION)) { \
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[[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0.1]]; \
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if ([timeout timeIntervalSinceNow] <= 0) { \
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XCTFail(@"Runloop timed out before condition was met"); \
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break; \
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} \
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} \
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}
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// Must be declared before RCTTestCustomSetBridgeModule in order to trigger the
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// race condition that we are testing for - namely that the
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// RCTDidInitializeModuleNotification for RCTTestViewManager gets sent before
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// setBridge: is called on RCTTestCustomSetBridgeModule
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@interface RCTTestViewManager : RCTViewManager
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@end
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@implementation RCTTestViewManager
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@synthesize bridge = _bridge;
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@synthesize methodQueue = _methodQueue;
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RCT_EXPORT_MODULE()
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- (void)setBridge:(RCTBridge *)bridge
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{
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_bridge = bridge;
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(void)[_bridge uiManager]; // Needed to trigger a race condition
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}
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- (NSArray<NSString *> *)customDirectEventTypes
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{
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return @[@"foo"];
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}
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@end
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@interface RCTNotificationObserverModule : NSObject <RCTBridgeModule>
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@property (nonatomic, assign) BOOL didDetectViewManagerInit;
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@end
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@implementation RCTNotificationObserverModule
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@synthesize bridge = _bridge;
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RCT_EXPORT_MODULE()
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- (void)setBridge:(RCTBridge *)bridge
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{
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_bridge = bridge;
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(didInitViewManager:) name:RCTDidInitializeModuleNotification object:nil];
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}
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- (void)didInitViewManager:(NSNotification *)note
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{
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id<RCTBridgeModule> module = note.userInfo[@"module"];
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if ([module isKindOfClass:[RCTTestViewManager class]]) {
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_didDetectViewManagerInit = YES;
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}
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}
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- (void)dealloc
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{
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[[NSNotificationCenter defaultCenter] removeObserver:self];
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}
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@end
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@interface RCTModuleInitNotificationRaceTests : XCTestCase <RCTBridgeDelegate>
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{
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RCTBridge *_bridge;
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RCTNotificationObserverModule *_notificationObserver;
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}
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@end
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@implementation RCTModuleInitNotificationRaceTests
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- (NSURL *)sourceURLForBridge:(__unused RCTBridge *)bridge
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{
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return nil;
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}
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- (NSArray *)extraModulesForBridge:(__unused RCTBridge *)bridge
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{
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return @[_notificationObserver];
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}
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- (void)setUp
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{
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[super setUp];
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_notificationObserver = [RCTNotificationObserverModule new];
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_bridge = [[RCTBridge alloc] initWithDelegate:self launchOptions:nil];
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}
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- (void)tearDown
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{
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[super tearDown];
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_notificationObserver = nil;
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id<RCTJavaScriptExecutor> jsExecutor = _bridge.batchedBridge.javaScriptExecutor;
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[_bridge invalidate];
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RUN_RUNLOOP_WHILE(jsExecutor.isValid);
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_bridge = nil;
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}
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- (void)testViewManagerNotInitializedBeforeSetBridgeModule
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{
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RUN_RUNLOOP_WHILE(!_notificationObserver.didDetectViewManagerInit);
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}
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@end
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