Function overrideFromLayer

overrides_test.go:96–126

overrideFromLayer performs the sequential override and low-level checks. First assignment is made on layer l for path firstPath with value firstValue, the second one on the override layer (i.e., with the Set() function) for path secondPath with value secondValue. firstPath and secondPath can inclu

(l layer, assert *assert.Assertions, firstPath string, firstValue any, secondPath string, secondValue any)

// After each assignment, the value is checked, retrieved both by its full path
// and by its key sequence (successive maps).
func overrideFromLayer(l layer, assert *assert.Assertions, firstPath string, firstValue any, secondPath string, secondValue any) *Viper {
	v := New()
	firstKeys := strings.Split(firstPath, v.keyDelim)
	if assert == nil ||
		len(firstKeys) == 0 || firstKeys[0] == "" {
		return v
	}

	// Set and check first value
	switch l {
	case defaultLayer:
		v.SetDefault(firstPath, firstValue)
	case overrideLayer:
		v.Set(firstPath, firstValue)
	default:
		return v
	}
	assert.Equal(firstValue, v.Get(firstPath))
	deepCheckValue(assert, v, l, firstKeys, firstValue)

	// Override and check new value
	secondKeys := strings.Split(secondPath, v.keyDelim)
	if len(secondKeys) == 0 || secondKeys[0] == "" {
		return v
	}
	v.Set(secondPath, secondValue)
	assert.Equal(secondValue, v.Get(secondPath))
	deepCheckValue(assert, v, overrideLayer, secondKeys, secondValue)

	return v
}

// deepCheckValue checks that all given keys correspond to a valid path in the
// configuration map of the given layer, and that the final value equals the one given.