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|
package s3crypto
import (
"bytes"
"encoding/hex"
"fmt"
"io"
"io/ioutil"
"strings"
"testing"
)
// From Go stdlib encoding/sha256 test cases
func TestSHA256(t *testing.T) {
sha := newSHA256Writer(nil)
expected, _ := hex.DecodeString("e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855")
b := sha.GetValue()
if !bytes.Equal(expected, b) {
t.Errorf("expected equivalent sha values, but received otherwise")
}
}
func TestSHA256_Case2(t *testing.T) {
sha := newSHA256Writer(bytes.NewBuffer([]byte{}))
sha.Write([]byte("hello"))
expected, _ := hex.DecodeString("2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824")
b := sha.GetValue()
if !bytes.Equal(expected, b) {
t.Errorf("expected equivalent sha values, but received otherwise")
}
}
type mockReader struct {
err error
}
func (m mockReader) Read(p []byte) (int, error) {
return len(p), m.err
}
func TestContentLengthReader(t *testing.T) {
cases := []struct {
reader io.Reader
expected int64
expectedErr string
}{
{
reader: bytes.NewReader([]byte("foo bar baz")),
expected: 11,
},
{
reader: bytes.NewReader(nil),
expected: 0,
},
{
reader: mockReader{err: fmt.Errorf("not an EOF error")},
expectedErr: "not an EOF error",
},
}
for _, tt := range cases {
reader := newContentLengthReader(tt.reader)
_, err := ioutil.ReadAll(reader)
if err != nil {
if len(tt.expectedErr) == 0 {
t.Errorf("expected no error, got %v", err)
} else if !strings.Contains(err.Error(), tt.expectedErr) {
t.Errorf("expected error %v, got %v", tt.expectedErr, err.Error())
}
continue
} else if len(tt.expectedErr) > 0 {
t.Error("expected error, got none")
continue
}
actual := reader.GetContentLength()
if tt.expected != actual {
t.Errorf("expected %v, got %v", tt.expected, actual)
}
}
}
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