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add stream tests and fix bug with stream.ReadByte

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This commit is contained in:
Lucas Clemente
2016-04-25 17:33:41 +02:00
parent e253cbe02f
commit ecbec2dcc6
2 changed files with 207 additions and 167 deletions
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361
stream_test.go
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@@ -13,10 +13,12 @@ import (
type mockStreamHandler struct {
closedStream bool
frames []frames.Frame
}
func (*mockStreamHandler) QueueFrame(frames.Frame) error {
panic("not implemented")
func (m *mockStreamHandler) QueueFrame(f frames.Frame) error {
m.frames = append(m.frames, f)
return nil
}
func (m *mockStreamHandler) closeStream(protocol.StreamID) {
@@ -34,169 +36,214 @@ var _ = Describe("Stream", func() {
stream = NewStream(handler, 1337)
})
It("reads a single StreamFrame", func() {
frame := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD, 0xBE, 0xEF},
}
stream.AddStreamFrame(&frame)
b := make([]byte, 4)
n, err := stream.Read(b)
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(4))
Expect(b).To(Equal([]byte{0xDE, 0xAD, 0xBE, 0xEF}))
})
It("reads a single StreamFrame in multiple goes", func() {
frame := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD, 0xBE, 0xEF},
}
stream.AddStreamFrame(&frame)
b := make([]byte, 2)
n, err := stream.Read(b)
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(2))
Expect(b).To(Equal([]byte{0xDE, 0xAD}))
n, err = stream.Read(b)
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(2))
Expect(b).To(Equal([]byte{0xBE, 0xEF}))
})
It("reads single bytes", func() {
frame := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD, 0xBE, 0xEF},
}
stream.AddStreamFrame(&frame)
b, err := stream.ReadByte()
Expect(err).ToNot(HaveOccurred())
Expect(b).To(Equal(byte(0xDE)))
b, err = stream.ReadByte()
Expect(err).ToNot(HaveOccurred())
Expect(b).To(Equal(byte(0xAD)))
b, err = stream.ReadByte()
Expect(err).ToNot(HaveOccurred())
Expect(b).To(Equal(byte(0xBE)))
b, err = stream.ReadByte()
Expect(err).ToNot(HaveOccurred())
Expect(b).To(Equal(byte(0xEF)))
})
It("reads all data available", func() {
frame1 := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD},
}
frame2 := frames.StreamFrame{
Offset: 2,
Data: []byte{0xBE, 0xEF},
}
stream.AddStreamFrame(&frame1)
stream.AddStreamFrame(&frame2)
b := make([]byte, 6)
n, err := stream.Read(b)
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(4))
Expect(b).To(Equal([]byte{0xDE, 0xAD, 0xBE, 0xEF, 0x00, 0x00}))
})
It("assembles multiple StreamFrames", func() {
frame1 := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD},
}
frame2 := frames.StreamFrame{
Offset: 2,
Data: []byte{0xBE, 0xEF},
}
stream.AddStreamFrame(&frame1)
stream.AddStreamFrame(&frame2)
b := make([]byte, 4)
n, err := stream.Read(b)
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(4))
Expect(b).To(Equal([]byte{0xDE, 0xAD, 0xBE, 0xEF}))
})
It("waits until data is available", func() {
go func() {
Context("reading", func() {
It("reads a single StreamFrame", func() {
frame := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD, 0xBE, 0xEF},
}
stream.AddStreamFrame(&frame)
b := make([]byte, 4)
n, err := stream.Read(b)
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(4))
Expect(b).To(Equal([]byte{0xDE, 0xAD, 0xBE, 0xEF}))
})
It("reads a single StreamFrame in multiple goes", func() {
frame := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD, 0xBE, 0xEF},
}
stream.AddStreamFrame(&frame)
b := make([]byte, 2)
n, err := stream.Read(b)
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(2))
Expect(b).To(Equal([]byte{0xDE, 0xAD}))
n, err = stream.Read(b)
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(2))
Expect(b).To(Equal([]byte{0xBE, 0xEF}))
})
It("reads single bytes", func() {
frame := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD, 0xBE, 0xEF},
}
stream.AddStreamFrame(&frame)
b, err := stream.ReadByte()
Expect(err).ToNot(HaveOccurred())
Expect(b).To(Equal(byte(0xDE)))
b, err = stream.ReadByte()
Expect(err).ToNot(HaveOccurred())
Expect(b).To(Equal(byte(0xAD)))
b, err = stream.ReadByte()
Expect(err).ToNot(HaveOccurred())
Expect(b).To(Equal(byte(0xBE)))
b, err = stream.ReadByte()
Expect(err).ToNot(HaveOccurred())
Expect(b).To(Equal(byte(0xEF)))
})
It("reads all data available", func() {
frame1 := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD},
}
time.Sleep(time.Millisecond)
stream.AddStreamFrame(&frame)
}()
b := make([]byte, 2)
n, err := stream.Read(b)
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(2))
frame2 := frames.StreamFrame{
Offset: 2,
Data: []byte{0xBE, 0xEF},
}
stream.AddStreamFrame(&frame1)
stream.AddStreamFrame(&frame2)
b := make([]byte, 6)
n, err := stream.Read(b)
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(4))
Expect(b).To(Equal([]byte{0xDE, 0xAD, 0xBE, 0xEF, 0x00, 0x00}))
})
It("assembles multiple StreamFrames", func() {
frame1 := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD},
}
frame2 := frames.StreamFrame{
Offset: 2,
Data: []byte{0xBE, 0xEF},
}
stream.AddStreamFrame(&frame1)
stream.AddStreamFrame(&frame2)
b := make([]byte, 4)
n, err := stream.Read(b)
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(4))
Expect(b).To(Equal([]byte{0xDE, 0xAD, 0xBE, 0xEF}))
})
It("waits until data is available", func() {
go func() {
frame := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD},
}
time.Sleep(time.Millisecond)
stream.AddStreamFrame(&frame)
}()
b := make([]byte, 2)
n, err := stream.Read(b)
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(2))
})
It("handles StreamFrames in wrong order", func() {
frame1 := frames.StreamFrame{
Offset: 2,
Data: []byte{0xBE, 0xEF},
}
frame2 := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD},
}
stream.AddStreamFrame(&frame1)
stream.AddStreamFrame(&frame2)
b := make([]byte, 4)
n, err := stream.Read(b)
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(4))
Expect(b).To(Equal([]byte{0xDE, 0xAD, 0xBE, 0xEF}))
})
It("handles duplicate StreamFrames", func() {
frame1 := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD},
}
frame2 := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD},
}
frame3 := frames.StreamFrame{
Offset: 2,
Data: []byte{0xBE, 0xEF},
}
stream.AddStreamFrame(&frame1)
stream.AddStreamFrame(&frame2)
stream.AddStreamFrame(&frame3)
b := make([]byte, 4)
n, err := stream.Read(b)
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(4))
Expect(b).To(Equal([]byte{0xDE, 0xAD, 0xBE, 0xEF}))
})
It("discards unneeded stream frames", func() {
frame1 := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD},
}
frame2 := frames.StreamFrame{
Offset: 1,
Data: []byte{0x42, 0x24},
}
frame3 := frames.StreamFrame{
Offset: 2,
Data: []byte{0xBE, 0xEF},
}
stream.AddStreamFrame(&frame1)
stream.AddStreamFrame(&frame2)
stream.AddStreamFrame(&frame3)
b := make([]byte, 4)
n, err := stream.Read(b)
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(4))
Expect(b).To(Equal([]byte{0xDE, 0xAD, 0xBE, 0xEF}))
})
})
It("handles StreamFrames in wrong order", func() {
frame1 := frames.StreamFrame{
Offset: 2,
Data: []byte{0xBE, 0xEF},
}
frame2 := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD},
}
stream.AddStreamFrame(&frame1)
stream.AddStreamFrame(&frame2)
b := make([]byte, 4)
n, err := stream.Read(b)
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(4))
Expect(b).To(Equal([]byte{0xDE, 0xAD, 0xBE, 0xEF}))
})
Context("writing", func() {
It("writes stream frames", func() {
n, err := stream.Write([]byte("foobar"))
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(6))
Expect(handler.frames).To(HaveLen(1))
Expect(handler.frames[0]).To(Equal(&frames.StreamFrame{
StreamID: 1337,
Data: []byte("foobar"),
}))
})
It("handles duplicate StreamFrames", func() {
frame1 := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD},
}
frame2 := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD},
}
frame3 := frames.StreamFrame{
Offset: 2,
Data: []byte{0xBE, 0xEF},
}
stream.AddStreamFrame(&frame1)
stream.AddStreamFrame(&frame2)
stream.AddStreamFrame(&frame3)
b := make([]byte, 4)
n, err := stream.Read(b)
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(4))
Expect(b).To(Equal([]byte{0xDE, 0xAD, 0xBE, 0xEF}))
})
It("writes multiple stream frames", func() {
n, err := stream.Write([]byte("foo"))
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(3))
n, err = stream.Write([]byte("bar"))
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(3))
Expect(handler.frames).To(HaveLen(2))
Expect(handler.frames[0]).To(Equal(&frames.StreamFrame{
StreamID: 1337,
Data: []byte("foo"),
}))
Expect(handler.frames[1]).To(Equal(&frames.StreamFrame{
StreamID: 1337,
Data: []byte("bar"),
Offset: 3,
}))
})
It("discards unneeded stream frames", func() {
frame1 := frames.StreamFrame{
Offset: 0,
Data: []byte{0xDE, 0xAD},
}
frame2 := frames.StreamFrame{
Offset: 1,
Data: []byte{0x42, 0x24},
}
frame3 := frames.StreamFrame{
Offset: 2,
Data: []byte{0xBE, 0xEF},
}
stream.AddStreamFrame(&frame1)
stream.AddStreamFrame(&frame2)
stream.AddStreamFrame(&frame3)
b := make([]byte, 4)
n, err := stream.Read(b)
Expect(err).ToNot(HaveOccurred())
Expect(n).To(Equal(4))
Expect(b).To(Equal([]byte{0xDE, 0xAD, 0xBE, 0xEF}))
It("closes", func() {
err := stream.Close()
Expect(err).ToNot(HaveOccurred())
Expect(handler.frames).To(HaveLen(1))
Expect(handler.frames[0]).To(Equal(&frames.StreamFrame{
StreamID: 1337,
FinBit: true,
Offset: 0,
}))
})
})
Context("getting next stream frame", func() {