verify(true, "message");
  }

  public void testVerify_simpleMessage_failure() {
    VerifyException expected = assertThrows(VerifyException.class, () -> verify(false, "message"));
    assertThat(expected).hasMessageThat().isEqualTo("message");
  }

  public void testVerify_complexMessage_success() {
    verify(true, "%s", IGNORE_ME);
  }

  public void testVerify_complexMessage_failure() {

    service.notifyFailed(new Exception("1"));
    service.notifyFailed(new Exception("2"));
    assertThat(service.failureCause()).hasMessageThat().isEqualTo("1");
    IllegalStateException e = assertThrows(IllegalStateException.class, service::awaitRunning);
    assertThat(e).hasCauseThat().hasMessageThat().isEqualTo("1");
  }

  private class ThreadedService extends AbstractService {

    service.notifyFailed(new Exception("1"));
    service.notifyFailed(new Exception("2"));
    assertThat(service.failureCause()).hasMessageThat().isEqualTo("1");
    IllegalStateException e = assertThrows(IllegalStateException.class, service::awaitRunning);
    assertThat(e).hasCauseThat().hasMessageThat().isEqualTo("1");
  }

  private class ThreadedService extends AbstractService {

      super.testNulls();
    } catch (AssertionError e) {
      assertWithMessage("Method did not throw null pointer OR element not in graph exception.")
          .that(e)
          .hasCauseThat()
          .hasMessageThat()
          .contains(ERROR_ELEMENT_NOT_IN_GRAPH);
    }
  }

    assertThat(e)
        .hasMessageThat()
        .contains("Expected to be healthy after starting. The following services are not running:");

    Throwable[] suppressed = e.getSuppressed();
    assertThat(suppressed).hasLength(2);
    assertThat(suppressed[0]).hasCauseThat().isInstanceOf(IllegalStateException.class);
    assertThat(suppressed[0]).hasCauseThat().hasMessageThat().isEqualTo("run failure");

        assertThrows(IllegalArgumentException.class, () -> directedGraph.addEdge(N1, N2, E12_A));
    assertThat(e).hasMessageThat().contains(ERROR_PARALLEL_EDGE);

    // By default, self-loop edges are not allowed.
    e = assertThrows(IllegalArgumentException.class, () -> directedGraph.addEdge(N1, N1, E11));
    assertThat(e).hasMessageThat().contains(ERROR_SELF_LOOP);
  }

  @Test
  public void createUndirected() {

    assertFalse(future.isCancelled());

    try {
      future.get();
      fail("Future should rethrow the exception.");
    } catch (ExecutionException e) {
      assertThat(e).hasCauseThat().hasMessageThat().isEqualTo(message);
    }
  }

    IllegalArgumentException expected =
        assertThrows(IllegalArgumentException.class, () -> new PercentEscaper("-+#abc.!", false));
    assertThat(expected).hasMessageThat().isEqualTo(msg);
  }

  public void testBadArguments_plusforspace() {
    // space can be a safe char if plusForSpace is false
    PercentEscaper unused = new PercentEscaper(" ", false);

  public void testGetResource_notFound() {
    IllegalArgumentException e =
        assertThrows(
            IllegalArgumentException.class, () -> Resources.getResource("no such resource"));
    assertThat(e).hasMessageThat().isEqualTo("resource no such resource not found.");
  }

  public void testGetResource() {
    assertThat(Resources.getResource("com/google/common/io/testdata/i18n.txt")).isNotNull();
  }

    assertThat(e)
        .hasMessageThat()
        .contains("Expected to be healthy after starting. The following services are not running:");

    Throwable[] suppressed = e.getSuppressed();
    assertThat(suppressed).hasLength(2);
    assertThat(suppressed[0]).hasCauseThat().isInstanceOf(IllegalStateException.class);
    assertThat(suppressed[0]).hasCauseThat().hasMessageThat().isEqualTo("run failure");