oneof float support

README.md

@@ -94,7 +94,7 @@ Unfortunately this library has some limitation
 * It does not support the `map[interface{}]interface{}`, `map[any_type]interface{}` & `map[interface{}]any_type` data types. Once again, we cannot generate values for an unknown data type.
 * Custom types are not fully supported. However some custom types are already supported: we are still investigating how to do this the correct way. For now, if you use `faker`, it's safer not to use any custom types in order to avoid panics.
 * Some extra custom types can be supported IF AND ONLY IF extended with [AddProvider()](https://github.com/bxcodec/faker/blob/9169c33ae9926e5b8f8732909790ee20b10b736a/faker.go#L320) please see [example](example_custom_faker_test.go#L46)
-* The `oneof` tag currently only supports `string` & `int`. Further support is coming soon. See [example](example_with_tags_test.go#L53) for usage.
+* The `oneof` tag currently only supports `string`, the `int` types, and both `float32` & `float64`. Further support is coming soon. See [example](example_with_tags_test.go#L53) for usage.
 
 ## Contribution
 

example_with_tags_test.go

@@ -52,6 +52,17 @@ type SomeStructWithTags struct {
 	Skip               string  `faker:"-"`
 	PaymentMethod      string  `faker:"oneof: cc, paypal, check, money order"` // oneof will randomly pick one of the comma-separated values supplied in the tag
 	AccountID          int     `faker:"oneof: 15, 27, 61"`                     // use commas to separate the values for now. Future support for other separator characters may be added
+	Price32            float32 `faker:"oneof: 4.95, 9.99, 31997.97"`
+	Price64            float64 `faker:"oneof: 47463.9463525, 993747.95662529, 11131997.978767990"`
+	NumS64             int64   `faker:"oneof: 1, 2"`
+	NumS32             int32   `faker:"oneof: -3, 4"`
+	NumS16             int16   `faker:"oneof: -5, 6"`
+	NumS8              int8    `faker:"oneof: 7, -8"`
+	NumU64             uint64  `faker:"oneof: 9, 10"`
+	NumU32             uint32  `faker:"oneof: 11, 12"`
+	NumU16             uint16  `faker:"oneof: 13, 14"`
+	NumU8              uint8   `faker:"oneof: 15, 16"`
+	NumU               uint    `faker:"oneof: 17, 18"`
 }
 
 func Example_withTags() {
@@ -107,7 +118,18 @@ func Example_withTags() {
 			UUIDHypenated: 8f8e4463-9560-4a38-9b0c-ef24481e4e27,
 			UUID: 90ea6479fd0e4940af741f0a87596b73,
 			PaymentMethod: paypal,
-			AccountID: 61
+			AccountID: 61,
+			Price32: 4.95,
+			Price64: 993747.95662529
+			NumS64:	1
+			NumS32:	-3
+			NumS16:	5
+			NumS8:	-8
+			NumU64:	9
+			NumU32:	11
+			NumU16:	13
+			NumU8:	15
+			NumU:	17
 			Skip:
 		}
 	*/

faker.go

@@ -115,7 +115,8 @@ const (
 	comma                 = ","
 	colon                 = ":"
 	ONEOF                 = "oneof"
-	// period                = "."
+	//period                = "."
+	hyphen = "-"
 )
 
 var defaultTag = map[string]string{
@@ -239,6 +240,8 @@ var (
 	ErrUnsupportedTagArguments = "Tag arguments are not compatible with field type."
 	ErrDuplicateSeparator      = "Duplicate separator for tag arguments."
 	ErrNotEnoughTagArguments   = "Not enough arguments for tag."
+	ErrUnsupportedNumberType   = "Unsupported Number type."
+	ErrMixedSignedWithUnsigned = "Passed signed int to unsigned type."
 )
 
 // Compiled regexp
@@ -865,17 +868,106 @@ func extractNumberFromTag(tag string, t reflect.Type) (interface{}, error) {
 		if len(args) < 2 {
 			return nil, fmt.Errorf(ErrNotEnoughTagArguments)
 		}
-		var numberValues []int
-		for _, i := range args {
-			k := strings.TrimSpace(i)
-			j, err := strconv.Atoi(k)
-			if err != nil {
-				return nil, fmt.Errorf(ErrUnsupportedTagArguments)
+		switch t.Kind() {
+		case reflect.Float32:
+			{
+				bytes := 32
+				var floatValues []float32
+				for _, i := range args {
+					k := strings.TrimSpace(i)
+					j, err := strconv.ParseFloat(k, bytes)
+					if err != nil {
+						return nil, fmt.Errorf(ErrUnsupportedTagArguments)
+					}
+					floatValues = append(floatValues, float32(j))
+				}
+				toRet := floatValues[rand.Intn(len(floatValues))]
+				return toRet, nil
+			}
+		case reflect.Float64:
+			{
+				bytes := 64
+				var floatValues []float64
+				for _, i := range args {
+					k := strings.TrimSpace(i)
+					j, err := strconv.ParseFloat(k, bytes)
+					if err != nil {
+						return nil, fmt.Errorf(ErrUnsupportedTagArguments)
+					}
+					floatValues = append(floatValues, j)
+				}
+				toRet := floatValues[rand.Intn(len(floatValues))]
+				return toRet, nil
+			}
+		case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
+			reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+			{
+				var numberValues []int
+				for _, i := range args {
+					k := strings.TrimSpace(i)
+					switch t.Kind() {
+					case reflect.Uint64, reflect.Uint32, reflect.Uint16, reflect.Uint8, reflect.Uint:
+						{
+							if strings.Contains(k, hyphen) {
+								return nil, fmt.Errorf(ErrMixedSignedWithUnsigned)
+							}
+						}
+					}
+					j, err := strconv.Atoi(k)
+					if err != nil {
+						return nil, fmt.Errorf(ErrUnsupportedTagArguments)
+					}
+					numberValues = append(numberValues, j)
+				}
+				toRet := numberValues[rand.Intn(len(numberValues))]
+				switch t.Kind() {
+				case reflect.Int64:
+					{
+						return int64(toRet), nil
+					}
+				case reflect.Int32:
+					{
+						return int32(toRet), nil
+					}
+				case reflect.Int16:
+					{
+						return int16(toRet), nil
+					}
+				case reflect.Int8:
+					{
+						return int8(toRet), nil
+					}
+				case reflect.Uint64:
+					{
+						return uint64(toRet), nil
+					}
+				case reflect.Uint32:
+					{
+						return uint32(toRet), nil
+					}
+				case reflect.Uint16:
+					{
+						return uint16(toRet), nil
+					}
+				case reflect.Uint8:
+					{
+						return uint8(toRet), nil
+					}
+				case reflect.Uint:
+					{
+						return uint(toRet), nil
+					}
+				default:
+					{
+						return toRet, nil
+					}
+				}
+			}
+		default:
+			{
+				return nil, fmt.Errorf(ErrUnsupportedNumberType)
 			}
-			numberValues = append(numberValues, j)
 		}
-		toRet := numberValues[rand.Intn(len(numberValues))]
-		return toRet, nil
 	}
 
 	// handling boundary tags