Class SingleCheckTest

javatests/dagger/internal/SingleCheckTest.java:30–45

Tests SingleCheck.

 * Tests {@link SingleCheck}.
 */
@RunWith(JUnit4.class)
public class SingleCheckTest {
  @Test(expected = NullPointerException.class)
  public void create_nullPointerException() {
    SingleCheck.provider(null);
  }

  @Test
  public void get() {
    AtomicInteger integer = new AtomicInteger();
    Provider<Integer> provider = SingleCheck.provider(integer::getAndIncrement);
    assertThat(provider.get()).isEqualTo(0);
    assertThat(provider.get()).isEqualTo(0);
    assertThat(provider.get()).isEqualTo(0);
  }
}