Further fixes -

- All test files have been renamed to their respective <package>_test name,
    this is done in accordance with
      - https://github.com/golang/go/wiki/CodeReviewComments#import-dot
        imports are largely used in testing, but to avoid namespace collision
        and circular dependencies

  - Never use _* in package names other than "_test" change fragment_v1 to expose
    fragment just like 'gopkg.in/check.v1'

pkg/utils/crypto/md5/md5_test.go

@@ -1,10 +1,11 @@
-package md5
+package md5_test
 
 import (
 	"bytes"
 	"encoding/hex"
 	"testing"
 
+	"github.com/minio-io/minio/pkg/utils/crypto/md5"
 	. "gopkg.in/check.v1"
 )
 
@@ -17,7 +18,7 @@ var _ = Suite(&MySuite{})
 func (s *MySuite) TestMd5sum(c *C) {
 	testString := []byte("Test string")
 	expectedHash, _ := hex.DecodeString("0fd3dbec9730101bff92acc820befc34")
-	hash, err := Sum(bytes.NewBuffer(testString))
+	hash, err := md5.Sum(bytes.NewBuffer(testString))
 	c.Assert(err, IsNil)
 	c.Assert(bytes.Equal(expectedHash, hash), Equals, true)
 }