array_of_dictionaries

- (void)test
{
    NSArray *arr = @[@{@"name": @"a", @"website": @"http://a.com", @"isTrue": @(YES)},
                     @{@"name": @"b", @"website": @"http://b.com", @"isTrue": @(NO)},
                     @{@"name": @"c", @"website": @"http://c.com", @"isTrue": @(NO)}];

    // Both the cases should be same as we don't care what value 'isTrue' has
    NSDictionary *testCaseFound1 = @{@"name": @"c", @"website": @"http://c.com", @"isTrue": @(YES)};
    NSDictionary *testCaseFound2 = @{@"name": @"c", @"website": @"http://c.com", @"isTrue": @(NO)};

    NSDictionary *testCaseNotFound1 = @{@"name": @"d", @"website": @"http://d.com", @"isTrue": @(YES)};
    NSDictionary *testCaseNotFound2 = @{@"name": @"d", @"website": @"http://d.com", @"isTrue": @(NO)};


    /* Comment or uncomment this line to toggle between two logics */
    //#define USE_OLD_LOGIC

#ifdef USE_OLD_LOGIC

    /* Old logic: must not work */
    NSAssert([arr indexOfObject:testCaseFound1] == 2, @"Found logic 1 broken!");
    NSAssert([arr indexOfObject:testCaseFound2] == 2, @"Found logic 2 broken!");
    NSAssert([arr indexOfObject:testCaseNotFound1] == NSNotFound, @"Not found logic 1 broken!");
    NSAssert([arr indexOfObject:testCaseNotFound2] == NSNotFound, @"Not found logic 2 broken!");

#else

    /* New logic: must work */
    __block NSDictionary *testCase = nil; // will be set later
    BOOL (^skipIsTruePredicate)(NSDictionary *, NSUInteger idx, BOOL *stop) = ^BOOL(NSDictionary *obj, NSUInteger idx, BOOL *stop) {

        NSAssert(testCase, @"Invalid testCase");

        NSUInteger checks = 0;
        for (NSString *key in [obj allKeys]) {

            if ([key isEqualToString:@"isTrue"]) {
                checks++;
                continue; // skip test
            }

            if ([obj objectForKey:key] == [testCase objectForKey:key]) {
                checks++;
            }
        }

        return (checks == [[obj allKeys] count]);
    };

    testCase = testCaseFound1;
    NSAssert([arr indexOfObjectPassingTest:skipIsTruePredicate] == 2, @"Found logic 1 broken!");
    testCase = testCaseFound2;
    NSAssert([arr indexOfObjectPassingTest:skipIsTruePredicate] == 2, @"Found logic 2 broken!");
    testCase = testCaseNotFound1;
    NSAssert([arr indexOfObjectPassingTest:skipIsTruePredicate] == NSNotFound, @"Not found logic 1 broken!");
    testCase = testCaseNotFound2;
    NSAssert([arr indexOfObjectPassingTest:skipIsTruePredicate] == NSNotFound, @"Not found logic 2 broken!");

#endif

}