javatests/dagger/hilt/android/processor/internal/aggregateddeps/EarlyEntryPointProcessorTest.java

/*
 * Copyright (C) 2021 The Dagger Authors.
 *
 * 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 dagger.hilt.android.processor.internal.aggregateddeps;

import static com.google.testing.compile.CompilationSubject.assertThat;
import static dagger.hilt.android.processor.AndroidCompilers.compiler;

import com.google.testing.compile.Compilation;
import com.google.testing.compile.JavaFileObjects;
import javax.tools.JavaFileObject;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

@RunWith(JUnit4.class)
public class EarlyEntryPointProcessorTest {

  @Test
  public void testUsedWithEntryPoint_fails() {
    JavaFileObject entryPoint =
        JavaFileObjects.forSourceLines(
            "test.UsedWithEntryPoint",
            "package test;",
            "",
            "import dagger.hilt.android.EarlyEntryPoint;",
            "import dagger.hilt.EntryPoint;",
            "import dagger.hilt.InstallIn;",
            "import dagger.hilt.components.SingletonComponent;",
            "",
            "@EarlyEntryPoint",
            "@EntryPoint",
            "@InstallIn(SingletonComponent.class)",
            "public interface UsedWithEntryPoint {}");
    Compilation compilation = compiler().compile(entryPoint);

    assertThat(compilation).failed();
    assertThat(compilation)
        .hadErrorContaining(
            "Only one of the following annotations can be used on test.UsedWithEntryPoint: "
                + "[dagger.hilt.EntryPoint, dagger.hilt.android.EarlyEntryPoint]")
        .inFile(entryPoint)
        .onLine(11);
  }

  @Test
  public void testNotSingletonComponent_fails() {
    JavaFileObject entryPoint =
        JavaFileObjects.forSourceLines(
            "test.NotSingletonComponent",
            "package test;",
            "",
            "import dagger.hilt.android.EarlyEntryPoint;",
            "import dagger.hilt.android.components.ActivityComponent;",
            "import dagger.hilt.EntryPoint;",
            "import dagger.hilt.InstallIn;",
            "",
            "@EarlyEntryPoint",
            "@InstallIn(ActivityComponent.class)",
            "public interface NotSingletonComponent {}");

    Compilation compilation = compiler().compile(entryPoint);

    assertThat(compilation).failed();
    assertThat(compilation)
        .hadErrorContaining(
            "@EarlyEntryPoint can only be installed into the SingletonComponent. "
                + "Found: [dagger.hilt.android.components.ActivityComponent]")
        .inFile(entryPoint)
        .onLine(10);
  }

  @Test
  public void testThatTestInstallInCannotOriginateFromTest() {
    JavaFileObject test =
        JavaFileObjects.forSourceLines(
            "test.MyTest",
            "package test;",
            "",
            "import dagger.hilt.EntryPoint;",
            "import dagger.hilt.InstallIn;",
            "import dagger.hilt.android.EarlyEntryPoint;",
            "import dagger.hilt.android.testing.HiltAndroidTest;",
            "import dagger.hilt.components.SingletonComponent;",
            "",
            "@HiltAndroidTest",
            "public class MyTest {",
            "  @EarlyEntryPoint",
            "  @InstallIn(SingletonComponent.class)",
            "  interface NestedEarlyEntryPoint {}",
            "}");
    Compilation compilation = compiler().compile(test);
    assertThat(compilation).failed();
    assertThat(compilation).hadErrorCount(1);
    assertThat(compilation)
        .hadErrorContaining(
            "@EarlyEntryPoint-annotated entry point, test.MyTest.NestedEarlyEntryPoint, cannot "
                + "be nested in (or originate from) a @HiltAndroidTest-annotated class, "
                + "test.MyTest.")
        .inFile(test)
        .onLine(13);
  }
}