}

        Map<String, String> result = ParameterUtil.parse(largeInput.toString());
        assertEquals(1000, result.size());
        assertEquals("value500", result.get("key500"));

        // Test createConfigParameterMap with large input
        StringBuilder configInput = new StringBuilder();
        for (int i = 0; i < 100; i++) {

        assertTrue(dataStoreParams.containsKey("key4"));

        // Create a copy
        DataStoreParams copy = dataStoreParams.newInstance();

        // Modify original
        dataStoreParams.put("key5", "value5");

        // Verify copy is independent
        assertTrue(dataStoreParams.containsKey("key5"));
        assertFalse(copy.containsKey("key5"));

        // Get as map and verify

	}

	want[1] = Level3{
		Level2s: []Level2{
			{
				Level1s: []Level1{
					{Value: "value3"},
					{Value: "value4"},
				},
			},
			{
				Level1s: []Level1{
					{Value: "value5"},
				},
			},
		},
	}
	if err := DB.Create(&want[1]).Error; err != nil {
		t.Error(err)
	}

	var got []Level3
	if err := DB.Preload("Level2s.Level1s").Find(&got).Error; err != nil {