Functional testing cocos2d application

Question

I'm writing Cocos2d application and looking for a way to write functional tests.

What I really need, is to launch application on the simulator and check that my scene contains specific nodes. Something like this

@implementation MenuTest

- (void) setUp
{
    // Launch app on the simulator
}

- (void) tearDown
{
    // Shut simulator down
}

- (void) testMenuContainsExitItem
{
    CCScene *scene = [[CCDirector sharedDirector] runningScene];
    CCNode *exit = [scene getChildByTag:EXIT_ITEM];

    STAssertNotNil(exit, @"No exit item found");
}

@end

So, is there a way to execute tests on a running app?

score 0 · Answer 1 · answered Oct 25 '12 at 13:51

You create and setup the scene in the setup method, then use the test* methods to check if the scene was set up according to specifications.

Be sure to use a function in setup that you're also calling from your game code. Something like:

-(void) setup
{
    CCScene* scene = [FirstScene setup];
    [[CCDirector sharedDirector] runWithScene:scene];
}

Then perform the tests:

- (void) testMenuContainsExitItem
{
    CCScene* scene = [CCDirector sharedDirector].runningScene;
    CCNode *exit = [scene getChildByTag:EXIT_ITEM];

    STAssertNotNil(exit, @"No exit item found");
}

You do not need to nor should you add any of the OCUnit test code (ie STAssert*) in your scene's code. Because then your scene wouldn't compile in regular builds without OCUnit.

So it is not necessary to launch my app on the simulator in order to test scenes? — lambdas, Oct 25 '12 at 14:40
Sadly exception arises when my scene instantiates `CClabelTTF`. — lambdas, Oct 26 '12 at 04:43

score -1 · Answer 2 · answered Oct 25 '12 at 11:04

You can define different tags for all CCNodes in your app. For example in interface section add something like it:

#define kExitNodeTag = 400;

While initialization:

-(id)init {
    if(self=[super init]) {
         ...
         self.tag = kExitNoteTag;
         ...
    }
}

You can check for node existence after initialization in every CCScene:

-(void)onEnter {
    CCNode *exit = [scene getChildByTag:kExitNodeTag];
    STAssertNotNil(exit, @"No exit item found");
}

I know it is possible to set tags on nodes. But how do I run my OCUnit tests from within `onEnter` method? — lambdas, Oct 25 '12 at 11:31

Functional testing cocos2d application

2 Answers2