Add tests for expiry

@@ -27,13 +27,15 @@ static NSDateFormatter *rfc1123DateFormatter = nil;
 	if (self == [ASIDownloadCache class]) {
 		rfc1123DateFormatter = [[NSDateFormatter alloc] init];
 		[rfc1123DateFormatter setLocale:[[[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"] autorelease]];
-		[rfc1123DateFormatter setDateFormat:@"EEE, dd MMM yyyy HH:mm:ss z"];
+		[rfc1123DateFormatter setTimeZone:[NSTimeZone timeZoneWithAbbreviation:@"GMT"]];
+		[rfc1123DateFormatter setDateFormat:@"EEE, dd MMM yyyy HH:mm:ss 'GMT'"];
 	}
 }
 
 - (id)init
 {
 	self = [super init];
+	[self setShouldRespectCacheControlHeaders:YES];
 	[self setDefaultCachePolicy:ASIReloadIfDifferentCachePolicy];
 	[self setDefaultCacheStoragePolicy:ASICacheForSessionDurationCacheStoragePolicy];
 	[self setAccessLock:[[[NSRecursiveLock alloc] init] autorelease]];

@@ -23,7 +23,7 @@
 
 
 // Automatically set on build
-NSString *ASIHTTPRequestVersion = @"v1.6.2-15 2010-05-03";
+NSString *ASIHTTPRequestVersion = @"v1.6.2-16 2010-05-04";
 
 NSString* const NetworkRequestErrorDomain = @"ASIHTTPRequestErrorDomain";
 

@@ -163,7 +163,28 @@
 	[request startSynchronous];
 	success = ![request didUseCachedResponse];
 	GHAssertTrue(success,@"Should not have used data cached in default cache");
-	
+}
+
+- (void)testExpiry
+{
+	[[ASIDownloadCache sharedCache] clearCachedResponsesForStoragePolicy:ASICacheForSessionDurationCacheStoragePolicy];
+
+	NSArray *headers = [NSArray arrayWithObjects:@"last-modified",@"etag",@"expires",@"max-age",nil];
+	for (NSString *header in headers) {
+		ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"http://asi/ASIHTTPRequest/tests/content-always-new/%@",header]]];
+		[request setDownloadCache:[ASIDownloadCache sharedCache]];
+		[request startSynchronous];
+
+		if ([header isEqualToString:@"last-modified"]) {
+			[NSThread sleepForTimeInterval:2];
+		}
+
+		request = [ASIHTTPRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"http://asi/ASIHTTPRequest/tests/content-always-new/%@",header]]];
+		[request setDownloadCache:[ASIDownloadCache sharedCache]];
+		[request startSynchronous];
+		BOOL success = ![request didUseCachedResponse];
+		GHAssertTrue(success,@"Cached data should have expired");
+	}
 }
 
 @end