Further restructure

pkg/crypto/sha256/sha256_test.go

@@ -1,23 +0,0 @@
-package sha256
-
-import (
-	"bytes"
-	"encoding/hex"
-	"testing"
-
-	. "gopkg.in/check.v1"
-)
-
-func Test(t *testing.T) { TestingT(t) }
-
-type MySuite struct{}
-
-var _ = Suite(&MySuite{})
-
-func (s *MySuite) TestSha256Stream(c *C) {
-	testString := []byte("Test string")
-	expectedHash, _ := hex.DecodeString("a3e49d843df13c2e2a7786f6ecd7e0d184f45d718d1ac1a8a63e570466e489dd")
-	hash, err := Sum(bytes.NewBuffer(testString))
-	c.Assert(err, IsNil)
-	c.Assert(bytes.Equal(expectedHash, hash), Equals, true)
-}