key                string
		initialValueExists bool
		initialValue       string
		newValue           string
	}{
		{
			name:               "initial value exists",
			key:                "GO_TEST_KEY_1",
			initialValueExists: true,
			initialValue:       "111",
			newValue:           "222",
		},
		{
			name:               "initial value exists but empty",
			key:                "GO_TEST_KEY_2",