xref: /aosp_15_r20/external/dagger2/javatests/dagger/functional/builderbinds/BuilderBindsTest.java (revision f585d8a307d0621d6060bd7e80091fdcbf94fe27)

/*
 * Copyright (C) 2016 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.functional.builderbinds;

import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.fail;

import com.google.common.collect.ImmutableList;
import dagger.functional.builderbinds.TestComponent.Builder;
import java.util.Arrays;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

@RunWith(JUnit4.class)
public final class BuilderBindsTest {

  @Test
  public void builderBinds() {
    TestComponent.Builder builder =
        DaggerTestComponent.builder()
            .count(5)
            .l(10L)
            .input("foo")
            .nullableInput("bar")
            .listOfString(Arrays.asList("x", "y", "z"));
    builder.boundInSubtype(20);
    TestComponent component = builder.build();
    assertThat(component.count()).isEqualTo(5);
    assertThat(component.input()).isEqualTo("foo");
    assertThat(component.nullableInput()).isEqualTo("bar");
    assertThat(component.listOfString()).containsExactly("x", "y", "z").inOrder();
  }

  @Test
  public void builderBindsNullableWithNull() {
    Builder builder =
        DaggerTestComponent.builder()
            .count(5)
            .l(10L)
            .input("foo")
            .nullableInput(null)
            .listOfString(ImmutableList.of());
    builder.boundInSubtype(20);
    TestComponent component = builder.build();

    assertThat(component.count()).isEqualTo(5);
    assertThat(component.input()).isEqualTo("foo");
    assertThat(component.nullableInput()).isNull();
    assertThat(component.listOfString()).isEmpty();
  }

  @Test
  public void builderBindsNonNullableWithNull() {
    try {
      DaggerTestComponent.builder().count(5).l(10L).input(null);
      fail("expected NullPointerException");
    } catch (NullPointerException expected) {
    }
  }

  @Test
  public void builderBindsPrimitiveNotSet() {
    try {
      TestComponent.Builder builder =
          DaggerTestComponent.builder()
              .l(10L)
              .input("foo")
              .nullableInput("bar")
              .listOfString(ImmutableList.of());
      builder.boundInSubtype(20);
      builder.build();
      fail("expected IllegalStateException");
    } catch (IllegalStateException expected) {
    }
  }

  @Test
  public void builderBindsNonNullableNotSet() {
    try {
      TestComponent.Builder builder =
          DaggerTestComponent.builder()
              .count(5)
              .l(10L)
              .nullableInput("foo")
              .listOfString(ImmutableList.of());
      builder.boundInSubtype(20);
      builder.build();
      fail("expected IllegalStateException");
    } catch (IllegalStateException expected) {
    }
  }

  @Test
  public void builderBindsNullableNotSet() {
    Builder builder =
        DaggerTestComponent.builder().count(5).l(10L).input("foo").listOfString(ImmutableList.of());
    builder.boundInSubtype(20);
    TestComponent component = builder.build();
    assertThat(component.count()).isEqualTo(5);
    assertThat(component.input()).isEqualTo("foo");
    assertThat(component.nullableInput()).isNull();
    assertThat(component.listOfString()).isEmpty();
  }
}