source.put("AnotherKey", "anotherValue");
        source.put("ValidKey", "validValue");

        Map<String, Object> result = searchLogHelper.toLowerHyphen(source);

        assertEquals("anotherValue", result.get("another_key"));
        assertEquals("validValue", result.get("valid_key"));
    }

    @Test
    public void test_searchLogQueue_initialization() {

    @Test
    public void test_getFilteredEnvMap_emptyKey() {
        envMap.put("", "value");
        envMap.put("VALID_KEY", "valid_value");

        final Map<String, String> filtered = systemHelper.getFilteredEnvMap(".*");
        assertEquals(1, filtered.size());
        assertEquals("valid_value", filtered.get("VALID_KEY"));
    }

    @Test
    public void test_normalizeConfigPath_edgeCases() {

	}

	// Make a list of valid keys for the subsystem including the `comment`
	// key.
	validKeys := make([]string, 0, len(defKVS)+1)
	for _, param := range defKVS {
		validKeys = append(validKeys, param.Key)
	}
	validKeys = append(validKeys, Comment)

	subSysEnvVars := env.List(fmt.Sprintf("%s%s", EnvPrefix, strings.ToUpper(subSys)))

        // Test that methods handle parameter validation appropriately

        // setObject should handle various inputs
        try {
            WebApiUtil.setObject("validKey", "validValue");
            WebApiUtil.setObject("", "emptyKey");
            WebApiUtil.setObject("nullValue", null);
            WebApiUtil.setObject(null, "nullKey");
            WebApiUtil.setObject(null, null);

*   `tf.data`: