components/AppBar/tests/unit/AppBarContainerIssue246Tests.swift

// Copyright 2016-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
import MaterialComponents.MaterialAppBar

// Tests confirming that the App Bar container view controller's app bar properties are non-nil
// immediately after initialization.
//
// Based on issue https://github.com/material-components/material-components-ios/issues/246
class AppBarContainerIssue246Tests: XCTestCase {

  func testNonNil() {
    let content = UIViewController()
    let container = MDCAppBarContainerViewController(contentViewController: content)

    XCTAssertNotNil(container.appBar.headerViewController)
    XCTAssertNotNil(container.appBar.navigationBar)
    XCTAssertNotNil(container.appBar.headerStackView)
  }
}