1 /* 2 * Copyright (C) 2020 The Dagger Authors. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package dagger.hilt.android.testing; 18 19 import static com.google.common.truth.Truth.assertThat; 20 import static org.junit.Assert.assertThrows; 21 22 import android.app.Application; 23 import androidx.test.ext.junit.runners.AndroidJUnit4; 24 import org.junit.Test; 25 import org.junit.runner.RunWith; 26 import org.robolectric.annotation.Config; 27 28 @HiltAndroidTest 29 @RunWith(AndroidJUnit4.class) 30 public final class HiltAndroidRuleTest { 31 public static final class NonHiltTest {} 32 33 @Test 34 @Config(application = HiltTestApplication.class) testMissingHiltAndroidTest_fails()35 public void testMissingHiltAndroidTest_fails() throws Exception { 36 IllegalStateException exception = 37 assertThrows( 38 IllegalStateException.class, 39 () -> new HiltAndroidRule(new NonHiltTest())); 40 assertThat(exception) 41 .hasMessageThat() 42 .isEqualTo( 43 "Expected dagger.hilt.android.testing.HiltAndroidRuleTest$NonHiltTest to be " 44 + "annotated with @HiltAndroidTest."); 45 46 } 47 48 @Test 49 @Config(application = Application.class) testNonHiltTestApplication_fails()50 public void testNonHiltTestApplication_fails() throws Exception { 51 IllegalStateException exception = 52 assertThrows( 53 IllegalStateException.class, 54 () -> new HiltAndroidRule(HiltAndroidRuleTest.this)); 55 assertThat(exception) 56 .hasMessageThat() 57 .isEqualTo( 58 "Hilt test, dagger.hilt.android.testing.HiltAndroidRuleTest, must use a Hilt test " 59 + "application but found android.app.Application. To fix, configure the test to " 60 + "use HiltTestApplication or a custom Hilt test application generated with " 61 + "@CustomTestApplication."); 62 63 } 64 65 @Test 66 @Config(application = HiltAndroidRuleTestApp.class) testHiltAndroidApplication_fails()67 public void testHiltAndroidApplication_fails() throws Exception { 68 IllegalStateException exception = 69 assertThrows( 70 IllegalStateException.class, 71 () -> new HiltAndroidRule(HiltAndroidRuleTest.this)); 72 assertThat(exception) 73 .hasMessageThat() 74 .isEqualTo( 75 "Hilt test, dagger.hilt.android.testing.HiltAndroidRuleTest, cannot use a " 76 + "@HiltAndroidApp application but found " 77 + "dagger.hilt.android.testing.HiltAndroidRuleTestApp. To fix, configure the " 78 + "test to use HiltTestApplication or a custom Hilt test application generated " 79 + "with @CustomTestApplication."); 80 81 } 82 } 83