// Copyright 2017-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 Foundation
import MaterialComponents.MaterialLibraryInfo
import XCTest

class LibraryInfoTests: XCTestCase {
  func testVersionFormat() {
    // Given

    // This regex pattern does the following:
    // Accept: "72.2.0", etc.
    // Reject: "0.0.0", "1.2", "1", "-1.2.3", "Hi, I'm a version 1.2.3", "1.2.3 is my version", etc.
    //
    // Note the major version must be >= 1 since "0.0.0" is used as the version when something goes
    // wrong in the underlying code and we're in Release mode.
    let pattern = "^[1-9][0-9]*\\.[0-9]+\\.[0-9]+$"

    // When
    let version = MDCLibraryInfo.versionString

    // Then
    XCTAssertNotNil(version.range(of: pattern, options: .regularExpression))
  }
}
