@@ -0,0 +1,1545 @@
+// Copyright 2019 Google LLC%0A//%0A// Licensed under the Apache License, Version 2.0 (the %22License%22);%0A// you may not use this file except in compliance with the License.%0A// You may obtain a copy of the License at%0A//%0A//     https://www.apache.org/licenses/LICENSE-2.0%0A//%0A// Unless required by applicable law or agreed to in writing, software%0A// distributed under the License is distributed on an %22AS IS%22 BASIS,%0A// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A// See the License for the specific language governing permissions and%0A// limitations under the License.%0A%0Apackage com.google.sps;%0A%0Aimport java.util.ArrayList;%0Aimport java.util.Arrays;%0Aimport java.util.Collection;%0Aimport java.util.Collections;%0Aimport java.util.List;%0Aimport org.junit.Assert;%0Aimport org.junit.Before;%0Aimport org.junit.Test;%0Aimport org.junit.runner.RunWith;%0Aimport org.junit.runners.JUnit4;%0A%0A/** */%0A@RunWith(JUnit4.class)%0Apublic final class MeetingRequestTest %7B%0A  // Some people that we can use in our tests.%0A  private static final String PERSON_A = %22Person A%22;%0A  private static final String PERSON_B = %22Person B%22;%0A  private static final String PERSON_C = %22Person C%22;%0A%0A  private static final int DURATION_1_HOUR = 60;%0A%0A  @Test%0A  public void CantAddOptionalAttendeeWhoIsAlsoMandatory() %7B%0A    MeetingRequest request = new MeetingRequest(Arrays.asList(PERSON_A), DURATION_1_HOUR);%0A    request.addOptionalAttendee(PERSON_A);%0A%0A    int actual = request.getOptionalAttendees().size();%0A    int expected = 0;%0A    Assert.assertEquals(expected, actual);%0A  %7D%0A%7D

Add a basic test for MeetingRequest.java