package term // import "github.com/docker/docker/pkg/term" import ( "bytes" "fmt" "reflect" "testing" "github.com/stretchr/testify/require" ) func TestEscapeProxyRead(t *testing.T) { escapeKeys, _ := ToBytes("DEL") keys, _ := ToBytes("a,b,c,+") reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys) buf := make([]byte, len(keys)) nr, err := reader.Read(buf) require.NoError(t, err) require.EqualValues(t, nr, len(keys), fmt.Sprintf("nr %d should be equal to the number of %d", nr, len(keys))) require.Equal(t, keys, buf, "keys & the read buffer should be equal") keys, _ = ToBytes("") reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys) buf = make([]byte, len(keys)) nr, err = reader.Read(buf) require.Error(t, err, "Should throw error when no keys are to read") require.EqualValues(t, nr, 0, "nr should be zero") require.Condition(t, func() (success bool) { return len(keys) == 0 && len(buf) == 0 }, "keys & the read buffer size should be zero") escapeKeys, _ = ToBytes("ctrl-x,ctrl-@") keys, _ = ToBytes("DEL") reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys) buf = make([]byte, len(keys)) nr, err = reader.Read(buf) require.NoError(t, err) require.EqualValues(t, nr, 1, fmt.Sprintf("nr %d should be equal to the number of 1", nr)) require.Equal(t, keys, buf, "keys & the read buffer should be equal") escapeKeys, _ = ToBytes("ctrl-c") keys, _ = ToBytes("ctrl-c") reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys) buf = make([]byte, len(keys)) nr, err = reader.Read(buf) require.Condition(t, func() (success bool) { return reflect.TypeOf(err).Name() == "EscapeError" }, err) require.EqualValues(t, nr, 0, "nr should be equal to 0") require.Equal(t, keys, buf, "keys & the read buffer should be equal") escapeKeys, _ = ToBytes("ctrl-c,ctrl-z") keys, _ = ToBytes("ctrl-c,ctrl-z") reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys) buf = make([]byte, 1) nr, err = reader.Read(buf) require.NoError(t, err) require.EqualValues(t, nr, 0, "nr should be equal to 0") require.Equal(t, keys[0:1], buf, "keys & the read buffer should be equal") nr, err = reader.Read(buf) require.Condition(t, func() (success bool) { return reflect.TypeOf(err).Name() == "EscapeError" }, err) require.EqualValues(t, nr, 0, "nr should be equal to 0") require.Equal(t, keys[1:], buf, "keys & the read buffer should be equal") escapeKeys, _ = ToBytes("ctrl-c,ctrl-z") keys, _ = ToBytes("ctrl-c,DEL,+") reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys) buf = make([]byte, 1) nr, err = reader.Read(buf) require.NoError(t, err) require.EqualValues(t, nr, 0, "nr should be equal to 0") require.Equal(t, keys[0:1], buf, "keys & the read buffer should be equal") buf = make([]byte, len(keys)) nr, err = reader.Read(buf) require.NoError(t, err) require.EqualValues(t, nr, len(keys), fmt.Sprintf("nr should be equal to %d", len(keys))) require.Equal(t, keys, buf, "keys & the read buffer should be equal") escapeKeys, _ = ToBytes("ctrl-c,ctrl-z") keys, _ = ToBytes("ctrl-c,DEL") reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys) buf = make([]byte, 1) nr, err = reader.Read(buf) require.NoError(t, err) require.EqualValues(t, nr, 0, "nr should be equal to 0") require.Equal(t, keys[0:1], buf, "keys & the read buffer should be equal") buf = make([]byte, len(keys)) nr, err = reader.Read(buf) require.NoError(t, err) require.EqualValues(t, nr, len(keys), fmt.Sprintf("nr should be equal to %d", len(keys))) require.Equal(t, keys, buf, "keys & the read buffer should be equal") }