material-components_material-components-ios/components/private/TextControlsPrivate/tests/unit/MDCTextControlPlaceholderSupportTests.m

// Copyright 2020-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 "MDCTextControlLabelSupport.h"
#import "MDCTextControlPlaceholderSupport.h"

@interface MDCTextControlPlaceholderSupportTests : XCTestCase
@end

@implementation MDCTextControlPlaceholderSupportTests

- (void)testPlaceholderVisibility {
  // When
  NSString *placeholder = @"placeholder";
  NSString *text = @"text";
  NSString *nilPlaceholder = nil;
  NSString *nilText = nil;

  // Then
  XCTAssertFalse(MDCTextControlShouldPlaceholderBeVisibleWithPlaceholder(
      nilPlaceholder, text, MDCTextControlLabelPositionNormal));
  XCTAssertFalse(MDCTextControlShouldPlaceholderBeVisibleWithPlaceholder(
      placeholder, text, MDCTextControlLabelPositionNormal));
  XCTAssertFalse(MDCTextControlShouldPlaceholderBeVisibleWithPlaceholder(
      placeholder, nilText, MDCTextControlLabelPositionNormal));
  XCTAssertTrue(MDCTextControlShouldPlaceholderBeVisibleWithPlaceholder(
      placeholder, nilText, MDCTextControlLabelPositionFloating));
}

@end