# Testing Dependencies with Overrides { #testing-dependencies-with-overrides }

## Overriding dependencies during testing { #overriding-dependencies-during-testing }

There are some scenarios where you might want to override a dependency during testing.

You don't want the original dependency to run (nor any of the sub-dependencies it might have).

            verify(ace, times(1)).getFlags();
        }
    }

    @Nested
    @DisplayName("Real-world Usage Scenarios")
    class RealWorldUsageTests {

        @Test
        @DisplayName("Should handle typical file system permission scenarios")
        void shouldHandleFileSystemPermissions() {
            // Read-only file access

 * This action handles SSO authentication flows including login, logout, and metadata
 * operations. It coordinates with the SsoManager to perform authentication using
 * configured SSO providers and handles various authentication scenarios including
 * successful login, authentication failures, and redirects.
 */
public class SsoAction extends FessLoginAction {
    // ===================================================================================

          maxSize = 50L * 1024L * 1024L // 50 MiB
      ))
      .build()
```

## EventListener events 

Cache Events are exposed via the EventListener API.  Typical scenarios are below.

### Cache Hit

In the ideal scenario the cache can fulfill the request without any conditional call to the network.
This will skip the normal events such as DNS, connecting to the network, and downloading the response body.

some form of isolation when dealing with untrusted data. As a result, this
document also outlines what issues we consider as TensorFlow security
vulnerabilities.

We recognize issues as vulnerabilities only when they occur in scenarios that we
outline as safe; issues that have a security impact only when TensorFlow is used
in a discouraged way (e.g. running untrusted models or checkpoints, data parsing

In many cases it's not very obvious how environment variables would be useful and applicable right away. But they keep showing up in many different scenarios when you are developing, so it's good to know about them.

        } catch (Exception e) {
            fail("Should have caught LdapOperationException");
        }
    }

    public void test_getMessage_consistency() {
        // Test message consistency across different scenarios
        String message1 = "LDAP bind failed";
        String message2 = "LDAP search failed";
        Exception cause = new Exception("Timeout");

        SearchRequestParams result = searchHelper.rewrite(params);

        assertEquals("rewritten2", result.getQuery());
    }

    // Test storeSearchParameters with various scenarios
    public void test_storeSearchParameters_withRequiredKeys() {
        ComponentUtil.setFessConfig(new MockFessConfig() {
            @Override
            public String getCookieSearchParameterRequiredKeys() {

    public void test_multipleExceptionScenarios() {
        // Test multiple realistic exception scenarios

        // Scenario 1: Command not found
        CommandExecutionException cmdNotFound = new CommandExecutionException("Command 'xyz' not found");
        assertTrue(cmdNotFound.getMessage().contains("not found"));

        // Scenario 2: Command timeout
        CommandExecutionException timeout =

        // Create a hook that simulates an exception scenario
        AtomicBoolean exceptionHandled = new AtomicBoolean(false);

        FessCurtainFinallyHook customHook = new FessCurtainFinallyHook() {
            @Override
            public void hook(final FwAssistantDirector assistantDirector) {
                try {
                    // Simulate a scenario where the method exists but invocation fails