Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #230 from mgilbir/custom-fakeable-types
Custom fakeable types
- Loading branch information
Showing
6 changed files
with
1,246 additions
and
141 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,80 @@ | ||
package gofakeit | ||
|
||
import ( | ||
"errors" | ||
"fmt" | ||
"reflect" | ||
) | ||
|
||
// Fakeable is an interface that can be implemented by a type to provide a custom fake value. | ||
type Fakeable interface { | ||
// Fake returns a fake value for the type. | ||
Fake(faker *Faker) interface{} | ||
} | ||
|
||
func isFakeable(t reflect.Type) bool { | ||
fakeableTyp := reflect.TypeOf((*Fakeable)(nil)).Elem() | ||
|
||
return t.Implements(fakeableTyp) || reflect.PtrTo(t).Implements(fakeableTyp) | ||
} | ||
|
||
func callFake(faker *Faker, v reflect.Value, possibleKinds ...reflect.Kind) (interface{}, error) { | ||
f, ok := v.Addr().Interface().(Fakeable) | ||
if !ok { | ||
return nil, errors.New("not a Fakeable type") | ||
} | ||
|
||
fakedValue := f.Fake(faker) | ||
k := reflect.TypeOf(fakedValue).Kind() | ||
if !containsKind(possibleKinds, k) { | ||
return nil, fmt.Errorf("returned value kind %q is not amongst the valid ones: %v", k, possibleKinds) | ||
} | ||
|
||
switch k { | ||
case reflect.String: | ||
return reflect.ValueOf(fakedValue).String(), nil | ||
case reflect.Bool: | ||
return reflect.ValueOf(fakedValue).Bool(), nil | ||
case reflect.Int: | ||
return int(reflect.ValueOf(fakedValue).Int()), nil | ||
case reflect.Int8: | ||
return int8(reflect.ValueOf(fakedValue).Int()), nil | ||
case reflect.Int16: | ||
return int16(reflect.ValueOf(fakedValue).Int()), nil | ||
case reflect.Int32: | ||
return int32(reflect.ValueOf(fakedValue).Int()), nil | ||
case reflect.Int64: | ||
return int64(reflect.ValueOf(fakedValue).Int()), nil | ||
case reflect.Uint: | ||
return uint(reflect.ValueOf(fakedValue).Uint()), nil | ||
case reflect.Uint8: | ||
return uint8(reflect.ValueOf(fakedValue).Uint()), nil | ||
case reflect.Uint16: | ||
return uint16(reflect.ValueOf(fakedValue).Uint()), nil | ||
case reflect.Uint32: | ||
return uint32(reflect.ValueOf(fakedValue).Uint()), nil | ||
case reflect.Uint64: | ||
return uint64(reflect.ValueOf(fakedValue).Uint()), nil | ||
case reflect.Float32: | ||
return float32(reflect.ValueOf(fakedValue).Float()), nil | ||
case reflect.Float64: | ||
return float64(reflect.ValueOf(fakedValue).Float()), nil | ||
case reflect.Slice: | ||
return reflect.ValueOf(fakedValue).Interface(), nil | ||
case reflect.Map: | ||
return reflect.ValueOf(fakedValue).Interface(), nil | ||
case reflect.Struct: | ||
return reflect.ValueOf(fakedValue).Interface(), nil | ||
default: | ||
return nil, fmt.Errorf("unsupported type %q", k) | ||
} | ||
} | ||
|
||
func containsKind(possibleKinds []reflect.Kind, kind reflect.Kind) bool { | ||
for _, k := range possibleKinds { | ||
if k == kind { | ||
return true | ||
} | ||
} | ||
return false | ||
} |
Oops, something went wrong.