confPath = ResourceUtil.getConfPath("dir1", "dir2", "file.conf");
        assertNotNull(confPath);
        assertTrue(confPath.toString().contains("dir1"));
        assertTrue(confPath.toString().contains("dir2"));
        assertTrue(confPath.toString().contains("file.conf"));
    }

    @Test
    public void test_getConfOrClassesPath() {
        // Test behavior when resource is not found
        try {

        assertTrue("Should contain all keys", Arrays.asList(keys).contains("lang"));
        assertTrue("Should contain all keys", Arrays.asList(keys).contains("a_key"));
        assertTrue("Should contain all keys", Arrays.asList(keys).contains("b_key"));
        assertTrue("Should contain all keys", Arrays.asList(keys).contains("c_key"));
    }

    @Test

        assertTrue(mockConfig.getApiPingEsFieldSet().contains("active_shards"));
        assertTrue(mockConfig.getApiPingEsFieldSet().contains("relocating_shards"));
        assertTrue(mockConfig.getApiPingEsFieldSet().contains("initializing_shards"));
        assertTrue(mockConfig.getApiPingEsFieldSet().contains("unassigned_shards"));
        assertTrue(mockConfig.getApiPingEsFieldSet().contains("delayed_unassigned_shards"));

    assertThat(graph.edgeValueOrDefault(4, 4, DEFAULT)).isEqualTo("valueD");

    String toString = graph.toString();
    assertThat(toString).contains("valueA");
    assertThat(toString).contains("valueB");
    assertThat(toString).contains("valueC");
    assertThat(toString).contains("valueD");
  }

  @Test
  public void undirectedGraph() {
    graph = ValueGraphBuilder.undirected().allowsSelfLoops(true).build();

        assertEquals(servletException, runtimeException.getCause());

        // Verify that the message is preserved from the cause
        assertTrue(runtimeException.getMessage().contains(ServletException.class.getName()));
        assertTrue(runtimeException.getMessage().contains(errorMessage));
    }

    @Test
    public void test_constructor_withServletExceptionWithCause() {
        // Create a root cause exception

    assertThat(graph.edgeValueOrDefault(4, 4, DEFAULT)).isEqualTo("valueD");

    String toString = graph.toString();
    assertThat(toString).contains("valueA");
    assertThat(toString).contains("valueB");
    assertThat(toString).contains("valueC");
    assertThat(toString).contains("valueD");
  }

  @Test
  public void undirectedGraph() {
    graph = ValueGraphBuilder.undirected().allowsSelfLoops(true).build();

        assertEquals("div", tag.toString().split(", ")[0].split("=")[1]);
        assertTrue(tag.toString().contains("id=main-modal"));
        assertTrue(tag.toString().contains("css=modal"));
        assertTrue(tag.toString().contains("attrName=data-toggle"));
        assertTrue(tag.toString().contains("attrValue=modal"));

        // Test multiple tags with different combinations

          }

          // Mostly safe: We check contains(u) before calling successors(u), so we perform unsafe
          // operations only in weird cases like checking for an EndpointPair<ArrayList> in a
          // Network<LinkedList>.
          @SuppressWarnings("unchecked")
          @Override
          public boolean contains(@Nullable Object obj) {
            if (!(obj instanceof EndpointPair)) {

        return stream().parallel();
      }

      @Override
      public boolean contains(@Nullable Object object) {
        return set1.contains(object) || set2.contains(object);
      }

      @Override
      public <S extends Set<E>> S copyInto(S set) {
        set.addAll(set1);
        set.addAll(set2);
        return set;
      }

      @Override
      int minSize() {

            assertTrue(config.getUrls().contains("https://example.com"));
            assertFalse(config.getUrls().contains("file:///test"));
        });

        parser.getFileConfig().ifPresent(config -> {
            assertTrue(config.getPaths().contains("file:///test"));
            assertFalse(config.getPaths().contains("https://example.com"));
        });
    }

    @Test