///

### Frameworks REST para Flask

Existen varios frameworks REST para Flask, pero después de invertir tiempo y trabajo investigándolos, encontré que muchos son descontinuados o abandonados, con varios problemas existentes que los hacían inadecuados.

### <a href="https://marshmallow.readthedocs.io/en/stable/" class="external-link" target="_blank">Marshmallow</a>

    public void test_get_nullProperty() {
        // Test getting non-existent property
        try {
            fessConfig.get("non.existent.property");
            fail("Should throw exception for non-existent property");
        } catch (ConfigPropertyNotFoundException e) {
            // Expected exception
            assertTrue(e.getMessage().contains("non.existent.property"));
        }
    }

        // Test operations on empty service
        assertEquals(0, mockService.getRegistrationCount());
        assertFalse(mockService.hasRegistration("non-existent"));
        assertFalse(mockService.unregisterWitness("non-existent"));
        assertFalse(mockService.processHeartbeat("non-existent", 1));

        // Test registration with null/empty values
        String regId1 = mockService.registerWitness(null, "192.168.1.100", 1);

        UnknownHostException exception = assertThrows(UnknownHostException.class, () -> {
            nameServiceClient.getNbtByName("NONEXISTENT-FAST-FAIL");
        }, "Should throw UnknownHostException for non-existent NetBIOS name");

        // Verify the exception message indicates name resolution failure
        assertTrue(exception.getMessage().contains("NONEXISTENT") || exception.getMessage().contains("unknown")

        </field>
        <field>
          <name>file</name>
          <version>1.0.0</version>
          <description><![CDATA[
             Specifies that this profile will be activated based on existence of a file.
             ]]></description>
          <association>
            <type>ActivationFile</type>
          </association>
        </field>
      </fields>
    </class>

        // Should not throw exception
        lenientService.updatePreauthHash("non-existent", "test".getBytes());

        // With enforcement enabled, should throw exception
        assertThrows(CIFSException.class, () -> {
            preauthService.updatePreauthHash("non-existent", "test".getBytes());
        });
    }

    @Test
    @DisplayName("Test context invalidation")

        if (parentCache != null && parentCache.isComplete()) {
            boolean exists = parentCache.hasChild(getName());
            log.debug("Using cached existence check for: {}", getPath());
            return exists;
        }
    }
    
    // Fall back to regular existence check
    return super.exists();
}

private void requestDirectoryLease() {
    if (!isDirectory() || !context.getConfig().isUseDirectoryLeasing()) {

```
{
  "item": "The Foo Wrestlers"
}
```

Mas se o cliente faz uma requisição para `http://example.com/items/bar` (ou seja, um não existente `item_id "bar"`), esse cliente receberá um HTTP status code 404 (o erro "não encontrado" — *not found error*), e uma resposta JSON:

```JSON
{
  "detail": "Item not found"
}
```

/// tip | Dica

			expectedRespStatus: http.StatusBadRequest,
		},
		// Test case - 8.
		// non-existent bucket is used.
		// writing BucketPolicy should fail.
		// should result in 404 StatusNotFound
		{
			bucketName:         "non-existent-bucket",
			bucketPolicyReader: bytes.NewReader(fmt.Appendf(nil, bucketPolicyTemplate, "non-existent-bucket", "non-existent-bucket")),

        } catch (org.codelibs.core.exception.ResourceNotFoundRuntimeException e) {
            // Expected behavior - method throws exception for non-existent files
            assertTrue(e.getMessage().contains("nonexistent.conf"));
        }

        // Test with multiple names - should also throw exception for non-existent files
        try {