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#import <Foundation/NSInvocationOperation.h>
#import <Foundation/NSInvocation.h>
#import <Foundation/NSOperation.h>
#import <Foundation/NSValue.h>
#import <Foundation/NSAutoreleasePool.h>
#import "ObjectTesting.h"
int main()
{
START_SET("NSInvocationOperation - basic")
NSInvocationOperation *op;
NSInvocation *inv1;
NSInvocation *inv2;
NSValue *val;
NSInteger length;
NSString *hello = @"hello";
NSString *uppercaseHello;
NSOperationQueue *queue = AUTORELEASE([NSOperationQueue new]);
op = [[NSInvocationOperation alloc] initWithTarget: hello
selector: @selector(length)
object: nil];
[queue addOperations: [NSArray arrayWithObject: op]
waitUntilFinished: YES];
val = [op result];
[val getValue: &length];
PASS((length == 5), "Can invoke a selector on a target");
RELEASE(op);
inv1 = [NSInvocation invocationWithMethodSignature:
[hello methodSignatureForSelector: @selector(uppercaseString)]];
[inv1 setTarget: hello];
[inv1 setSelector: @selector(uppercaseString)];
op = [[NSInvocationOperation alloc] initWithInvocation: inv1];
inv2 = [op invocation];
PASS(([inv2 isEqual: inv1]), "Can recover an operation's invocation");
[queue addOperations: [NSArray arrayWithObject: op]
waitUntilFinished: YES];
uppercaseHello = [op result];
PASS_EQUAL(uppercaseHello, @"HELLO", "Can schedule an NSInvocation");
RELEASE(op);
op = [[NSInvocationOperation alloc] initWithTarget: hello
selector: @selector(release)
object: nil];
[queue addOperations: [NSArray arrayWithObject: op]
waitUntilFinished: YES];
PASS_EXCEPTION(([op result]), NSInvocationOperationVoidResultException,
"Can't get result of a void invocation");
RELEASE(op);
op = [[NSInvocationOperation alloc] initWithTarget: hello
selector: @selector(length)
object: nil];
[op cancel];
[queue addOperations: [NSArray arrayWithObject: op]
waitUntilFinished: YES];
PASS_EXCEPTION(([op result]), NSInvocationOperationCancelledException,
"Can't get the result of a cancelled invocation");
RELEASE(op);
op = [[NSInvocationOperation alloc] initWithTarget: hello
selector: @selector(length)
object: nil];
PASS(([op result] == nil),
"Result is nil before the invocation has completed");
RELEASE(op);
RELEASE(queue);
END_SET("NSInvocationOperation - basic")
return 0;
}
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