components/Buttons/tests/unit/ButtonTypographyThemerTests.m

/*
 Copyright 2018-present the Material Components for iOS authors. All Rights Reserved.

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

 http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 */

#import <XCTest/XCTest.h>

#import "MaterialButtons.h"
#import "MaterialButtons+TypographyThemer.h"

@interface ButtonTypographyThemerTests : XCTestCase
@end

@implementation ButtonTypographyThemerTests

- (void)testButtonTypographyThemer {
  // Given
  MDCTypographyScheme *typographyScheme = [[MDCTypographyScheme alloc] init];
  MDCButton *button = [[MDCButton alloc] initWithFrame:CGRectZero];
  [button setTitle:@"Hello World" forState:UIControlStateNormal];
  typographyScheme.button = [UIFont boldSystemFontOfSize:12];
  [button setTitleFont:[UIFont systemFontOfSize:21] forState:UIControlStateNormal];
  [button setTitleFont:[UIFont systemFontOfSize:22] forState:UIControlStateHighlighted];
  [button setTitleFont:[UIFont systemFontOfSize:23] forState:UIControlStateSelected];
  [button setTitleFont:[UIFont systemFontOfSize:24] forState:UIControlStateDisabled];

  // When
  [MDCButtonTypographyThemer applyTypographyScheme:typographyScheme toButton:button];

  // Then
  NSUInteger maximumStateValue = UIControlStateNormal | UIControlStateSelected |
      UIControlStateHighlighted | UIControlStateDisabled;
  for (NSUInteger state = 0; state <= maximumStateValue; ++state) {
    if ([button titleFontForState:state] != nil) {
      XCTAssertEqual([button titleFontForState:state], typographyScheme.button);
    }
  }

}

    
@end