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//
// GTMDebugThreadValidationTest.m
// Copyright 2008 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
//
#import "GTMSenTestCase.h"
#import "GTMDebugThreadValidation.h"
// GTMDebugThreadValidation only happens on debug builds
#if DEBUG
@interface GTMDebugThreadValidationTest : GTMTestCase
@end
// A cheap flag for knowing when our thread has run
static volatile BOOL gGTMDebugThreadValidationTestDone = NO;
// This is an assertion handler that just records that an assertion has fired.
@interface GTMDebugThreadValidationCheckAssertionHandler : NSAssertionHandler {
@private
BOOL handledAssertion_;
}
- (void)handleFailureInMethod:(SEL)selector
object:(id)object
file:(NSString *)fileName
lineNumber:(NSInteger)line
description:(NSString *)format,...;
- (void)handleFailureInFunction:(NSString *)functionName
file:(NSString *)fileName
lineNumber:(NSInteger)line
description:(NSString *)format,...;
- (BOOL)didHandleAssertion;
@end
@implementation GTMDebugThreadValidationTest
- (void)testOnMainThread {
STAssertNoThrow(GTMAssertRunningOnMainThread(), nil);
}
- (void)threadFunc:(NSMutableString *)result {
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
// We'll insert our own assertion handler that will get called on the assert
// so that we don't have to worry about the log, and exception being thrown.
GTMDebugThreadValidationCheckAssertionHandler *handler =
[[[GTMDebugThreadValidationCheckAssertionHandler alloc] init] autorelease];
NSMutableDictionary *threadDictionary
= [[NSThread currentThread] threadDictionary];
[threadDictionary setObject:handler forKey:@"NSAssertionHandler"];
GTMAssertRunningOnMainThread();
if ([handler didHandleAssertion]) {
[result setString:@"ASSERTED"];
}
[threadDictionary removeObjectForKey:@"NSAssertionHandler"];
gGTMDebugThreadValidationTestDone = YES;
[pool release];
}
- (void)testOnOtherThread {
NSMutableString *result = [NSMutableString string];
gGTMDebugThreadValidationTestDone = NO;
[NSThread detachNewThreadSelector:@selector(threadFunc:)
toTarget:self
withObject:result];
NSRunLoop *loop = [NSRunLoop currentRunLoop];
while (!gGTMDebugThreadValidationTestDone) {
NSDate *date = [NSDate dateWithTimeIntervalSinceNow:0.01];
[loop runUntilDate:date];
}
STAssertEqualStrings(result, @"ASSERTED", @"GTMAssertRunningOnMainThread did "
@"not assert while running on another thread");
}
@end
@implementation GTMDebugThreadValidationCheckAssertionHandler
- (void)handleFailureInMethod:(SEL)selector
object:(id)object
file:(NSString *)fileName
lineNumber:(NSInteger)line
description:(NSString *)format,... {
handledAssertion_ = YES;
}
- (void)handleFailureInFunction:(NSString *)functionName
file:(NSString *)fileName
lineNumber:(NSInteger)line
description:(NSString *)format,... {
handledAssertion_ = YES;
}
- (BOOL)didHandleAssertion {
return handledAssertion_;
}
@end
#endif // DEBUG
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