assertThat(toTest).isEqualTo("TestClass{field1=Hello}");
  }

  @GwtIncompatible // Class names are obfuscated in GWT
  public void testToString_oneIntegerField() {
    String toTest =
        MoreObjects.toStringHelper(new TestClass()).add("field1", Integer.valueOf(42)).toString();
    assertThat(toTest).isEqualTo("TestClass{field1=42}");
  }