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|
package cnp
import (
"bytes"
"io"
"strconv"
"strings"
"testing"
)
var (
messageTests = []messageTest{
{
"qweasd", "text/plain", nil, nil,
"cnp/0.4 test1 length=6 type=text/plain\nqweasd",
&Message{
Header: Header{
VersionMajor: 0,
VersionMinor: 4,
Intent: "test1",
Parameters: Parameters{
"type": "text/plain",
"length": "6",
},
},
Body: strings.NewReader("qweasd"),
},
},
{
"qweasd", "text", nil, ErrorInvalid{},
"cnp/0.4 test2 length=w type=text/plain\nqweasd",
&Message{
Header: Header{
VersionMajor: 0,
VersionMinor: 4,
Intent: "test2",
Parameters: Parameters{
"type": "text/plain",
"length": "w",
},
},
Body: strings.NewReader("qweasd"),
},
},
{
"", "text/plain", ErrorSyntax{}, nil,
"cnp/0.4 test3 type=text/plain",
nil,
},
{
"", "text/plain", nil, nil,
"cnp/0.4 test4 type=text/plain\n",
&Message{
Header: Header{
VersionMajor: 0,
VersionMinor: 4,
Intent: "test4",
Parameters: Parameters{
"type": "text/plain",
},
},
Body: nil,
},
},
}
)
type messageTest struct {
b, t string
p, v error
s string
m *Message
}
func (tst *messageTest) Reset() {
if tst.m != nil && tst.b != "" {
tst.m.Body = strings.NewReader(tst.b)
}
}
func TestParse(t *testing.T) {
for _, tst := range messageTests {
tst.Reset()
msg, err := ParseMessage(strings.NewReader(tst.s))
if tst.p != nil || err != nil {
if !errorEqual(tst.p, err) {
t.Errorf("ParseMessage(%q): expected error %+v, got %+v (%v)", tst.s, tst.p, err, err)
continue
}
} else if !msgEqual(msg, tst.m) {
t.Errorf("\nexpected: %+v\ngot: %+v", tst.m, msg)
} else if l := msg.Length(); tst.v == nil && (l != int64(len(tst.b)) && !(l < 0 == (len(tst.b) == 0))) {
t.Errorf("%+v: expected length %d, got %d", tst.m, len(tst.b), l)
} else if err = msg.Validate(); !errorEqual(err, tst.v) {
t.Errorf("%+v: expected validation error %+v, got %+v (%s)", msg, tst.v, err, err)
}
}
}
func TestNew(t *testing.T) {
for i, tst := range messageTests {
if tst.v != nil || tst.p != nil {
continue // skip invalid messages
}
tst.Reset()
var r io.Reader
if tst.b != "" {
r = strings.NewReader(tst.b)
}
msg := NewMessage("test"+strconv.Itoa(i+1), r)
msg.SetParam("type", tst.t)
if !msgEqual(msg, tst.m) {
t.Errorf("\nexpected: %+v\ngot: %+v", tst.m, msg)
}
}
}
func TestWrite(t *testing.T) {
for _, tst := range messageTests {
if tst.p != nil {
continue // skip invalid messages
}
tst.Reset()
var buf bytes.Buffer
err := tst.m.Write(&buf)
if err != nil {
t.Errorf("%+v: error writing message body: %s", tst.m, err)
}
if buf.String() != tst.s {
t.Errorf("%+v:\nexpected: %q\ngot: %q", tst.m, tst.s, buf.String())
}
}
}
func TestComputeLength(t *testing.T) {
s := "qweasd"
r := &testStringReader{"qweasd"}
msg := NewMessage("ok", r)
if _, ok := msg.Header.Parameters["length"]; msg.Length() != 0 || msg.Param("length") != "" || ok {
t.Fatalf("%+v: expected no length parameter", msg)
}
if err := msg.ComputeLength(); err != nil {
t.Fatalf("%+v.ComputeLength(): error: %s", msg, err)
}
if l := msg.Length(); l != int64(len(s)) {
t.Fatalf("%+v: invalid length %d, expected %d\n", msg, l, len(s))
}
if _, ok := msg.Body.(*testStringReader); r.s != "" || ok || r == msg.Body {
t.Fatalf("%+v: did not buffer body correctly", msg)
}
if !bodyEqual(msg.Body, strings.NewReader(s)) {
t.Fatalf("%+v: incorrect buffered body", msg)
}
}
func TestParseTooLarge(t *testing.T) {
s := "cnp/0.4 ok text="
str := s + strings.Repeat(".", MaxHeaderLength-len(s)) + "\n"
_, err := ParseMessage(strings.NewReader(str))
if _, ok := err.(ErrorTooLarge); !ok {
t.Errorf("\nexpected: ErrorTooLarge\ngot: %+v", err)
}
}
type noopCloser struct {
r io.Reader
closed bool
}
func (n *noopCloser) Close() error {
n.closed = true
return nil
}
func (n *noopCloser) Read(b []byte) (int, error) {
return n.r.Read(b)
}
func TestClose(t *testing.T) {
var r io.Reader = strings.NewReader("cnp/0.4 ok\nqweasd")
if msg, err := ParseMessage(r); err != nil {
t.Errorf("ParseMessage error: %v", err)
} else if err = msg.Close(); err != nil {
t.Errorf("Error closing message: %v", err)
}
r = &noopCloser{r: strings.NewReader("cnp/0.4 ok\nqweasd")}
if msg, err := ParseMessage(r); err != nil {
t.Errorf("ParseMessage error: %v", err)
} else if err = msg.Close(); err != nil {
t.Errorf("Error closing message: %v", err)
} else if !r.(*noopCloser).closed {
t.Errorf("Reader was not closed")
}
r = &noopCloser{r: strings.NewReader("qweasd")}
msg := NewMessage("ok", r)
if err := msg.Close(); err != nil {
t.Errorf("Error closing message: %v", err)
} else if !r.(*noopCloser).closed {
t.Errorf("Reader was not closed")
}
}
|