assertEquals("custom.document.index", deleteIndex);

        // Assert result is empty when successful
        assertEquals("", result);
    }

    @Test
    public void test_execute_withNullPointerException() {
        // Create mock SearchEngineClient that throws NullPointerException
        searchEngineClient = new SearchEngineClient() {
            @Override

Shinsuke Sugaya <******@****.***> 1773442886 +0900

Shinsuke Sugaya <******@****.***> 1773442886 +0900