assertNotNull(lmhosts.getByName("HOST1", mockContext));
        assertNotNull(lmhosts.getByName("HOST2", mockContext));
    }

    @Test
    void testPopulateWithInvalidIPFormat() throws Exception {
        // Create a temporary lmhosts file with invalid IP formats
        File lmhostsFile = tempDir.resolve("lmhosts_invalid").toFile();