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//
// GMTransientRootProxyTest.m
//
// Copyright 2006-2009 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 "GTMTransientRootProxy.h"
#import "GTMUnitTestDevLog.h"
#define kDefaultTimeout 5.0
// === Start off declaring some auxillary data structures ===
static NSString *const kTestServerName = @"gtm_test_server";
static NSString *const kGTMTransientRootNameKey = @"GTMTransientRootNameKey";
static NSString *const kGTMTransientRootLockKey = @"GTMTransientRootLockKey";
enum {
kGTMTransientThreadConditionStarting = 777,
kGTMTransientThreadConditionStarted,
kGTMTransientThreadConditionQuitting,
kGTMTransientThreadConditionQuitted
};
// The @protocol that we'll use for testing with.
@protocol DOTestProtocol
- (oneway void)doOneWayVoid;
- (bycopy NSString *)doReturnStringBycopy;
- (void)throwException;
@end
// The "server" we'll use to test the DO connection. This server will implement
// our test protocol, and it will run in a separate thread from the main
// unit testing thread, so the DO requests can be serviced.
@interface DOTestServer : NSObject <DOTestProtocol> {
}
- (void)runThread:(NSDictionary *)args;
@end
@implementation DOTestServer
- (void)runThread:(NSDictionary *)args {
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
NSConditionLock *lock = [args objectForKey:kGTMTransientRootLockKey];
NSString *serverName = [args objectForKey:kGTMTransientRootNameKey];
NSDate *future = [NSDate dateWithTimeIntervalSinceNow:kDefaultTimeout];
if(![lock lockWhenCondition:kGTMTransientThreadConditionStarting
beforeDate:future]) {
_GTMDevLog(@"Unable to acquire lock in runThread! This is BAD!");
[pool drain];
[NSThread exit];
}
NSConnection *conn = [[[NSConnection alloc] init] autorelease];
[conn setRootObject:self];
if (![conn registerName:serverName]) {
_GTMDevLog(@"Failed to register DO root object with name '%@'",
serverName);
[pool drain];
[NSThread exit];
}
[lock unlockWithCondition:kGTMTransientThreadConditionStarted];
while (![lock tryLockWhenCondition:kGTMTransientThreadConditionQuitting]) {
NSDate* runUntil = [NSDate dateWithTimeIntervalSinceNow:0.1];
[[NSRunLoop currentRunLoop] runUntilDate:runUntil];
}
[conn setRootObject:nil];
[conn registerName:nil];
[pool drain];
[lock unlockWithCondition:kGTMTransientThreadConditionQuitted];
}
- (oneway void)doOneWayVoid {
// Do nothing
}
- (bycopy NSString *)doReturnStringBycopy {
return @"TestString";
}
- (void)throwException {
[NSException raise:@"testingException" format:@"for the unittest"];
}
@end
// === Done with auxillary data structures, now for the main test class ===
@interface GTMTransientRootProxyTest : GTMTestCase {
@private
DOTestServer *server_;
NSConditionLock *syncLock_;
}
@end
@implementation GTMTransientRootProxyTest
- (void)testTransientRootProxy {
// Setup our server and create a unqiue server name every time we run
NSTimeInterval timeStamp = [[NSDate date] timeIntervalSinceReferenceDate];
NSString *serverName =
[NSString stringWithFormat:@"%@_%f", kTestServerName, timeStamp];
server_ = [[[DOTestServer alloc] init] autorelease];
syncLock_ = [[[NSConditionLock alloc]
initWithCondition:kGTMTransientThreadConditionStarting]
autorelease];
NSDictionary *args = [NSDictionary dictionaryWithObjectsAndKeys:
syncLock_, kGTMTransientRootLockKey,
serverName, kGTMTransientRootNameKey,
nil];
[NSThread detachNewThreadSelector:@selector(runThread:)
toTarget:server_
withObject:args];
NSDate *future = [NSDate dateWithTimeIntervalSinceNow:kDefaultTimeout];
STAssertTrue([syncLock_ lockWhenCondition:kGTMTransientThreadConditionStarted
beforeDate:future],
@"Unable to start thread");
[syncLock_ unlockWithCondition:kGTMTransientThreadConditionStarted];
GTMTransientRootProxy<DOTestProtocol> *failProxy =
[GTMTransientRootProxy rootProxyWithRegisteredName:nil
host:nil
protocol:@protocol(DOTestProtocol)
requestTimeout:kDefaultTimeout
replyTimeout:kDefaultTimeout];
STAssertNil(failProxy, @"should have failed w/o a name");
failProxy =
[GTMTransientRootProxy rootProxyWithRegisteredName:serverName
host:nil
protocol:nil
requestTimeout:kDefaultTimeout
replyTimeout:kDefaultTimeout];
STAssertNil(failProxy, @"should have failed w/o a protocol");
failProxy = [[[GTMTransientRootProxy alloc] init] autorelease];
STAssertNil(failProxy, @"should have failed just calling init");
GTMTransientRootProxy<DOTestProtocol> *proxy =
[GTMTransientRootProxy rootProxyWithRegisteredName:serverName
host:nil
protocol:@protocol(DOTestProtocol)
requestTimeout:kDefaultTimeout
replyTimeout:kDefaultTimeout];
STAssertEqualObjects([proxy doReturnStringBycopy], @"TestString",
@"proxy should have returned 'TestString'");
// Redo the *exact* same test to make sure we can have multiple instances
// in the same app.
proxy =
[GTMTransientRootProxy rootProxyWithRegisteredName:serverName
host:nil
protocol:@protocol(DOTestProtocol)
requestTimeout:kDefaultTimeout
replyTimeout:kDefaultTimeout];
STAssertEqualObjects([proxy doReturnStringBycopy],
@"TestString", @"proxy should have returned "
@"'TestString'");
// Test the GTMRootProxyCatchAll within this test so we don't have to rebuild
// the server again.
GTMRootProxyCatchAll<DOTestProtocol> *catchProxy =
[GTMRootProxyCatchAll rootProxyWithRegisteredName:serverName
host:nil
protocol:@protocol(DOTestProtocol)
requestTimeout:kDefaultTimeout
replyTimeout:kDefaultTimeout];
[GTMUnitTestDevLog expectString:@"Proxy for invoking throwException has "
@"caught and is ignoring exception: [NOTE: this exception originated in "
@"the server.]\nfor the unittest"];
id e = nil;
@try {
// Has the server throw an exception
[catchProxy throwException];
} @catch (id ex) {
e = ex;
}
STAssertNil(e, @"The GTMRootProxyCatchAll did not catch the exception: %@.",
e);
proxy =
[GTMTransientRootProxy rootProxyWithRegisteredName:@"FAKE_SERVER"
host:nil
protocol:@protocol(DOTestProtocol)
requestTimeout:kDefaultTimeout
replyTimeout:kDefaultTimeout];
STAssertNotNil(proxy, @"proxy shouldn't be nil, even when registered w/ a "
@"fake server");
STAssertFalse([proxy isConnected], @"the proxy shouldn't be connected due to "
@"the fake server");
// Now set up a proxy, and then kill our server. We put a super short time
// out on it, because we are expecting it to fail.
proxy =
[GTMTransientRootProxy rootProxyWithRegisteredName:serverName
host:nil
protocol:@protocol(DOTestProtocol)
requestTimeout:0.01
replyTimeout:0.01];
[syncLock_ tryLockWhenCondition:kGTMTransientThreadConditionStarted];
[syncLock_ unlockWithCondition:kGTMTransientThreadConditionQuitting];
// Wait for the server to shutdown so we clean up nicely.
// The max amount of time we will wait until we abort this test.
NSDate *timeout = [NSDate dateWithTimeIntervalSinceNow:kDefaultTimeout];
// The server did not shutdown and we want to capture this as an error
STAssertTrue([syncLock_ lockWhenCondition:kGTMTransientThreadConditionQuitted
beforeDate:timeout],
@"The server did not shutdown gracefully before the timeout.");
[syncLock_ unlockWithCondition:kGTMTransientThreadConditionQuitted];
// This should fail gracefully because the server is dead.
STAssertNil([proxy doReturnStringBycopy], @"proxy should have returned nil");
}
@end
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