content: /*
   * Copyright 2015, The Android Open Source Project
   *
   * 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.
   */
  
  package com.example.android.testing.unittesting.BasicSample;
  
  import org.junit.Test;
  
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertTrue;
  
  
  /**
   * Unit tests for the EmailValidator logic.
   */
  public class EmailValidatorTest {
  
  
      @Test
      public void emailValidator_CorrectEmailSimple_ReturnsTrue() {
          assertTrue(EmailValidator.isValidEmail("name@email.com"));
      }
  
      @Test
      public void emailValidator_CorrectEmailSubDomain_ReturnsTrue() {
          assertTrue(EmailValidator.isValidEmail("name@email.co.uk"));
      }
  
      @Test
      public void emailValidator_InvalidEmailNoTld_ReturnsFalse() {
          assertFalse(EmailValidator.isValidEmail("name@email"));
      }
  
      @Test
      public void emailValidator_InvalidEmailDoubleDot_ReturnsFalse() {
          assertFalse(EmailValidator.isValidEmail("name@email..com"));
      }
  
      @Test
      public void emailValidator_InvalidEmailNoUsername_ReturnsFalse() {
          assertFalse(EmailValidator.isValidEmail("@email.com"));
      }
  
      @Test
      public void emailValidator_EmptyString_ReturnsFalse() {
          assertFalse(EmailValidator.isValidEmail(""));
      }
  
      @Test
      public void emailValidator_NullEmail_ReturnsFalse() {
          assertFalse(EmailValidator.isValidEmail(null));
      }
  }
  