Method castTo

javatests/dagger/internal/codegen/ExpressionTest.java:36–49

()

  interface Subtype extends Supertype {}

  @Test
  public void castTo() {
    TypeMirror subtype = type(Subtype.class);
    TypeMirror supertype = type(Supertype.class);
    Expression expression = Expression.create(subtype, "new $T() {}", subtype);

    Expression castTo = expression.castTo(supertype);

    assertThat(castTo.type()).isSameAs(supertype);
    assertThat(castTo.codeBlock().toString())
        .isEqualTo(
            "(dagger.internal.codegen.ExpressionTest.Supertype) "
                + "new dagger.internal.codegen.ExpressionTest.Subtype() {}");
  }

  private TypeMirror type(Class<?> clazz) {
    return compilationRule.getElements().getTypeElement(clazz.getCanonicalName()).asType();