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package gpgme
import (
"bytes"
"errors"
"io"
"io/ioutil"
"os"
"testing"
)
func TestData_memory_empty(t *testing.T) {
dh, err := NewData()
checkError(t, err)
for i := 0; i < 5; i++ {
_, err := dh.Write([]byte(testCipherText))
checkError(t, err)
}
_, err = dh.Seek(0, SeekSet)
checkError(t, err)
testReader(t, dh, bytes.Repeat([]byte(testCipherText), 5))
checkError(t, dh.Close())
}
func TestData_memory(t *testing.T) {
// Test ordinary data, and empty slices
for _, content := range [][]byte{[]byte(testCipherText), []byte{}} {
dh, err := NewDataBytes(content)
checkError(t, err)
testReader(t, dh, content)
checkError(t, dh.Close())
}
}
func TestData_file(t *testing.T) {
f, err := ioutil.TempFile("", "gpgme")
checkError(t, err)
defer func() {
checkError(t, f.Close())
checkError(t, os.Remove(f.Name()))
}()
dh, err := NewDataFile(f)
checkError(t, err)
for i := 0; i < 5; i++ {
_, err := dh.Write([]byte(testCipherText))
checkError(t, err)
}
_, err = dh.Seek(0, SeekSet)
checkError(t, err)
testReader(t, dh, bytes.Repeat([]byte(testCipherText), 5))
checkError(t, dh.Close())
}
func TestData_callback_reading(t *testing.T) {
r := bytes.NewReader([]byte(testCipherText))
dh, err := NewDataReader(r)
checkError(t, err)
testReader(t, dh, []byte(testCipherText))
checkError(t, dh.Close())
}
func TestData_callback_reading_error(t *testing.T) {
expectedErr := errors.New("a special error")
r := errReadSeeker{err: expectedErr}
dh, err := NewDataReader(r)
checkError(t, err)
_, err = dh.Read(make([]byte, 10))
if err != expectedErr {
t.Errorf("err = %v, want %v", err, expectedErr)
}
checkError(t, dh.Close())
}
func TestData_callback_seeking_error(t *testing.T) {
expectedErr := errors.New("a special error")
r := errReadSeeker{err: expectedErr}
dh, err := NewDataReader(r)
checkError(t, err)
_, err = dh.Seek(0, 0)
if err != expectedErr {
t.Errorf("err = %v, want %v", err, expectedErr)
}
checkError(t, dh.Close())
}
func TestData_callback_writing(t *testing.T) {
var buf bytes.Buffer
dh, err := NewDataWriter(&buf)
checkError(t, err)
for i := 0; i < 5; i++ {
_, err := dh.Write([]byte(testCipherText))
checkError(t, err)
}
expected := bytes.Repeat([]byte(testCipherText), 5)
diff(t, buf.Bytes(), expected)
checkError(t, dh.Close())
}
func TestData_callback_writing_error(t *testing.T) {
expectedErr := errors.New("a special error")
dh, err := NewDataWriter(errWriter{err: expectedErr})
checkError(t, err)
_, err = dh.Write([]byte(testData))
if err != expectedErr {
t.Errorf("err = %v, want %v", err, expectedErr)
}
checkError(t, dh.Close())
}
func testReader(t testing.TB, r io.Reader, content []byte) {
var buf bytes.Buffer
n, err := io.Copy(&buf, r)
checkError(t, err)
if int(n) != len(content) {
t.Errorf("n = %d, want %d", n, len(content))
}
diff(t, buf.Bytes(), content)
}
type errWriter struct{ err error }
func (w errWriter) Write(p []byte) (int, error) {
return 0, w.err
}
type errReadSeeker struct{ err error }
func (rs errReadSeeker) Read([]byte) (int, error) {
return 0, rs.err
}
func (rs errReadSeeker) Seek(int64, int) (int64, error) {
return 0, rs.err
}
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