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package mint
import (
"testing"
)
var kTestFrame = []byte{0x00, 0x05, 'a', 'b', 'c', 'd', 'e'}
var kTestEmptyFrame = []byte{0x00, 0x00}
type simpleHeader struct{}
func (h simpleHeader) headerLen() int {
return 2
}
func (h simpleHeader) defaultReadLen() int {
return 1024
}
func (h simpleHeader) frameLen(hdr []byte) (int, error) {
if len(hdr) != 2 {
panic("Assert!")
}
return (int(hdr[0]) << 8) | int(hdr[1]), nil
}
func checkFrame(t *testing.T, hdr []byte, body []byte) {
assertByteEquals(t, hdr, kTestFrame[:2])
assertByteEquals(t, body, kTestFrame[2:])
}
func TestFrameReaderFullFrame(t *testing.T) {
r := newFrameReader(simpleHeader{})
r.addChunk(kTestFrame)
hdr, body, err := r.process()
assertNotError(t, err, "Couldn't read frame 1")
checkFrame(t, hdr, body)
r.addChunk(kTestFrame)
hdr, body, err = r.process()
assertNotError(t, err, "Couldn't read frame 2")
checkFrame(t, hdr, body)
}
func TestFrameReaderTwoFrames(t *testing.T) {
r := newFrameReader(simpleHeader{})
r.addChunk(kTestFrame)
r.addChunk(kTestFrame)
hdr, body, err := r.process()
assertNotError(t, err, "Couldn't read frame 1")
checkFrame(t, hdr, body)
hdr, body, err = r.process()
assertNotError(t, err, "Couldn't read frame 2")
checkFrame(t, hdr, body)
}
func TestFrameReaderTrickle(t *testing.T) {
r := newFrameReader(simpleHeader{})
var hdr, body []byte
var err error
for i := 0; i <= len(kTestFrame); i += 1 {
hdr, body, err = r.process()
if i < len(kTestFrame) {
assertEquals(t, err, AlertWouldBlock)
assertEquals(t, 0, len(hdr))
assertEquals(t, 0, len(body))
r.addChunk(kTestFrame[i : i+1])
}
}
assertNil(t, err, "Error reading")
checkFrame(t, hdr, body)
}
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