// Copyright 2023 Google LLC
//
// 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 XCTest

@testable import FirebaseAuth

/** @class FIRGoogleAuthProviderTests
    @brief Tests for @c FIRGoogleAuthProvider
 */
@available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
class GoogleAuthProviderTests: XCTestCase {
  let kAccessToken = "Token"
  let kIDToken = "idToken"

  /** @fn testCredentialWithToken
      @brief Tests the @c credentialWithToken method to make sure the credential it produces populates
          the appropriate fields in a verify assertion request.
   */
  func testCredentialWithToken() {
    let requestConfiguration = AuthRequestConfiguration(apiKey: "APIKey", appID: "appID")
    let credential = GoogleAuthProvider.credential(withIDToken: kIDToken, accessToken: kAccessToken)
    let request = VerifyAssertionRequest(providerID: GoogleAuthProvider.id,
                                         requestConfiguration: requestConfiguration)
    credential.prepare(request)
    XCTAssertEqual(kAccessToken, request.providerAccessToken)
  }

  /** @fn testGoogleAuthCredentialCoding
      @brief Tests successful archiving and unarchiving of @c GoogleAuthCredential.
   */
  func testGoogleAuthCredentialCoding() throws {
    let credential = GoogleAuthProvider.credential(withIDToken: kIDToken, accessToken: kAccessToken)
    XCTAssertTrue(GoogleAuthCredential.supportsSecureCoding)
    let data = try NSKeyedArchiver.archivedData(
      withRootObject: credential,
      requiringSecureCoding: true
    )
    let unarchivedCredential = try XCTUnwrap(NSKeyedUnarchiver.unarchivedObject(
      ofClass: GoogleAuthCredential.self, from: data
    ))
    XCTAssertEqual(unarchivedCredential.accessToken, kAccessToken)
    XCTAssertEqual(unarchivedCredential.idToken, kIDToken)
  }
}
