ExtractArg.m

- (void)testCompleteEnrollment {

    BNRemoteDepositStartViewController *const startController = [BNRemoteDepositStartViewController new];
    __block UIAlertController *alertController;

    BNValidateBlock validator = extractArgTo(alertController);
    
    id mockController = OCMPartialMock(startController);
    [mockController setExpectationOrderMatters:YES];
    OCMExpect([mockController setShouldShowSignUpSubmitted:YES]);
    OCMExpect([mockController presentViewController:[OCMArg checkWithBlock:validator]
                                           animated:YES
                                         completion:nil]);

    
    [startController completeEnrollment:^{}];
   
    NSString *expectedTitle;

    expectedTitle = NSLocalizedString(@"Thank You", nil);
    NSString *const expectedMessage =
    NSLocalizedString(@"Your request is being processed. A notification will be sent as soon as your accounts have been approved.",
                      nil);

    XCTAssertEqualObjects(alertController.title, expectedTitle, @"The alert controller title is incorrect");
    XCTAssertEqualObjects(alertController.message, expectedMessage,
                          @"The alert controller message is incorrect");
    XCTAssertEqual(alertController.preferredStyle, UIAlertControllerStyleAlert,
                   @"The alert controller style is incorrect");
    XCTAssertEqual(alertController.actions.count, 1, @"Expected the alert controller to have one action");

    UIAlertAction *const action = alertController.actions[0];
    expectedTitle = NSLocalizedString(@"OK", nil);
    XCTAssertEqualObjects(action.title, expectedTitle, @"The title for action 0 is incorrect");
    XCTAssertEqual(action.style, UIAlertActionStyleDefault, @"The style for action 0 is incorrect");
    
    OCMVerifyAll(mockController);
}