// Mock install method
            }
        };

        Artifact artifact = new Artifact("fess-ds-test", "1.0.0", "http://test.com/test.jar");

        try {
            testHelper.installArtifact(artifact);
            // If we get here, the method executed without throwing
            assertTrue(true);
        } catch (Exception e) {
            fail("Unexpected exception: " + e.getMessage());
        }