testMutableChildren.m

#pragma mark - MutableChildren

- (void)testMutableChildren
{
    NSArray *array = @[@"0",
                       @"1",
                       [NSNull null],
                       @"2",
                       @[@"0",
                         [NSNull null],
                         @"1",
                         [NSNull null],
                         @"2"],
                       @"4"];
    
    NSMutableArray *mutableArray = [array mutableCopy];
    NSMutableArray *compactMutableArray = [mutableArray cu_compactArray];
    
    NSString *test = @"test";
    compactMutableArray[3][1] = test;
    XCTAssertEqualObjects(compactMutableArray[3][1], test);
}