/**
     * Changes current cwd, if the new path is existing directory.
     *
     * @throws NullPointerException if {@code seg} is {@code null}.
     * @throws IllegalArgumentException if {@code seg} leads to non-existent directory.
     */
    public void change(String seg) {
        Path newCwd = resolve(seg);
        if (Files.isDirectory(newCwd)) {
            this.directory = newCwd;
        } else {

        assertTrue(laterAge >= 200, "Age should increase after delay");
    }

    @Test
    public void testKeyAgeNonExistent() {
        assertEquals(-1, keyManager.getKeyAge("non-existent"), "Non-existent key should return -1 for age");
    }

    @Test
    public void testConfigureKeyRotation() {
        // Test that configuration doesn't throw
        keyManager.configureKeyRotation(60000);

        tempFile = new File(Curl.tmpDir, "non-existent-file.tmp");
        assertFalse(tempFile.exists());

        ContentCache cache = new ContentCache(tempFile);

        // Should throw IOException when file doesn't exist
        try {
            cache.close();
            fail("Expected IOException for non-existent file");
        } catch (IOException e) {

        boolean result = SuggestUtil.deleteByQuery(client, settings, TEST_INDEX, QueryBuilders.termQuery("nonexistent", "value"));
        assertTrue(result); // Should still return true even with no matches
    }

    @Test(expected = SuggesterException.class)
    public void testDeleteByQueryWithInvalidIndex() {
        // Test delete with non-existent index

        assert data == "path/to/file"
        data = websocket.receive_text()
        assert data == "a_query_param"


def test_wrong_uri():
    """
    Verify that a websocket connection to a non-existent endpoing returns in a shutdown
    """
    client = TestClient(app)
    with pytest.raises(WebSocketDisconnect) as e:
        with client.websocket_connect("/no-router/"):
            pass  # pragma: no cover

        HandleInfo info = manager.getHandleByPath("/test/file.txt");
        assertNotNull(info);
        assertEquals(guid, info.getCreateGuid());

        assertNull(manager.getHandleByPath("/nonexistent/file.txt"));
    }

    @Test
    public void testMultipleHandles() {
        HandleGuid guid1 = manager.requestDurableHandle("/test/file1.txt", HandleType.DURABLE_V2, 120000, null);

TEST_F(CApiExperimentalFunctionTest, EmptyGraphRemoveNonExistentFunction) {
  TF_GraphRemoveFunction(func_graph_, "wrong_name", s_);
  EXPECT_EQ(TF_INVALID_ARGUMENT, TF_GetCode(s_));
  EXPECT_EQ(string("Tried to remove non-existent function 'wrong_name'."),
            string(TF_Message(s_)));
}

TEST_F(CApiExperimentalFunctionTest, GraphRemoveNonExistentFunction) {
  TF_Function* funcs[1];
  DefineFunction(func_name_, &func_);

	for _, pe := range partErrs {
		if pe != checkPartSuccess {
			c++
		}
	}
	return c
}

// checkObjectWithAllParts sets partsMetadata and onlineDisks when xl.meta is inexistant/corrupted or outdated
// it also checks if the status of each part (corrupted, missing, ok) in each drive
func checkObjectWithAllParts(ctx context.Context, onlineDisks []StorageAPI, partsMetadata []FileInfo,

		},

		// Test case - 8.
		// Test case with non-existent source file.
		// Case for the purpose of failing `api.ObjectAPI.GetObjectInfo`.
		// Expecting the response status code to http.StatusNotFound (404).
		{
			bucketName:       bucketName,
			uploadID:         uploadID,
			copySourceHeader: url.QueryEscape(SlashSeparator + bucketName + SlashSeparator + "non-existent-object"),
			accessKey:        credentials.AccessKey,

func TestNonExistentBucketOperations(t *testing.T) {
	ExecObjectLayerTest(t, testNonExistentBucketOperations)
}

// Tests validate that bucket operation on non-existent bucket fails.
func testNonExistentBucketOperations(obj ObjectLayer, instanceType string, t TestErrHandler) {
	var opts ObjectOptions