feat(pkg/gitreceive/storage/interfaces.go): add godoc and fakes for unit testing

Author: Aaron Schlesinger

pkg/gitreceive/storage/interfaces.go

@@ -6,14 +6,41 @@ import (
 	s3 "github.com/minio/minio-go"
 )
 
+// BucketCreator is a *(github.com/minio/minio-go).Client compatible interface, restricted to just the MakeBucket function. You can use it in your code for easier unit testing without any external dependencies
 type BucketCreator interface {
 	MakeBucket(bucketName string, acl s3.BucketACL, location string) error
 }
 
+// FakeBucketCreator is a mock function that can be swapped in for an BucketCreator, so you can unit test your code
+type FakeBucketCreator func(string, s3.BucketACL, string) error
+
+// PutObject is the interface definition
+func (f FakeBucketCreator) MakeBucket(name string, acl s3.BucketACL, location string) error {
+	return f(name, acl, location)
+}
+
+// ObjectStatter is a *(github.com/minio/minio-go).Client compatible interface, restricted to just the StatObject function. You can use it in your code for easier unit testing without any external dependencies
 type ObjectStatter interface {
 	StatObject(bucketName, objectKey string) (s3.ObjectInfo, error)
 }
 
+// FakeObjectStatter is a mock function that can be swapped in for an ObjectStatter, so you can unit test your code
+type FakeObjectStatter func(string, string) (s3.ObjectInfo, error)
+
+// PutObject is the interface definition
+func (f FakeObjectStatter) StatObject(bucketName, objectKey string) (s3.ObjectInfo, error) {
+	return f(bucketName, objectKey)
+}
+
+// ObjectPutter is a *(github.com/minio/minio-go).Client compatible interface, restricted to just the PutObject function. You can use it in your code for easier unit testing without any external dependencies
 type ObjectPutter interface {
 	PutObject(bucketName, objectKey string, reader io.Reader, contentType string) (int64, error)
 }
+
+// FakeObjectPutter is a mock function that can be swapped in for an ObjectPutter, so you can unit test your code
+type FakeObjectPutter func(bucketName, objectKey string, reader io.Reader, contentType string) (int64, error)
+
+// PutObject is the interface definition
+func (f FakeObjectPutter) PutObject(bucketName, objectKey string, reader io.Reader, contentType string) (int64, error) {
+	return f(bucketName, objectKey, reader, contentType)
+}