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jsonrpc2/conn_test.go
Sam Herrmann 846c29e96d
Split jsonrpc2.go file into multiple files (#65)
This merge request moves some of the contents from the jsonrpc2.go file
into their own designated file. The new files being introduced
(excluding test files) are as follows:

* conn.go
* request.go
* response.go

The motive of this change is to make it easier to navigate the code.
Without this change, the jsonrpc2.go file is 813 lines of code.
2023-02-09 07:56:42 +01:00

103 lines
2.5 KiB
Go

package jsonrpc2_test
import (
"context"
"io"
"net"
"testing"
"time"
"github.com/sourcegraph/jsonrpc2"
)
func TestConn_DisconnectNotify(t *testing.T) {
t.Run("EOF", func(t *testing.T) {
connA, connB := net.Pipe()
c := jsonrpc2.NewConn(context.Background(), jsonrpc2.NewPlainObjectStream(connB), nil)
// By closing connA, connB receives io.EOF
if err := connA.Close(); err != nil {
t.Error(err)
}
assertDisconnect(t, c, connB)
})
t.Run("Close", func(t *testing.T) {
_, connB := net.Pipe()
c := jsonrpc2.NewConn(context.Background(), jsonrpc2.NewPlainObjectStream(connB), nil)
if err := c.Close(); err != nil {
t.Error(err)
}
assertDisconnect(t, c, connB)
})
t.Run("Close async", func(t *testing.T) {
done := make(chan struct{})
_, connB := net.Pipe()
c := jsonrpc2.NewConn(context.Background(), jsonrpc2.NewPlainObjectStream(connB), nil)
go func() {
if err := c.Close(); err != nil && err != jsonrpc2.ErrClosed {
t.Error(err)
}
close(done)
}()
assertDisconnect(t, c, connB)
<-done
})
t.Run("protocol error", func(t *testing.T) {
connA, connB := net.Pipe()
c := jsonrpc2.NewConn(context.Background(), jsonrpc2.NewPlainObjectStream(connB), nil)
connA.Write([]byte("invalid json"))
assertDisconnect(t, c, connB)
})
}
func TestConn_Close(t *testing.T) {
t.Run("waiting for response", func(t *testing.T) {
connA, connB := net.Pipe()
nodeA := jsonrpc2.NewConn(
context.Background(),
jsonrpc2.NewPlainObjectStream(connA), noopHandler{},
)
defer nodeA.Close()
nodeB := jsonrpc2.NewConn(
context.Background(),
jsonrpc2.NewPlainObjectStream(connB),
noopHandler{},
)
defer nodeB.Close()
ready := make(chan struct{})
done := make(chan struct{})
go func() {
close(ready)
err := nodeB.Call(context.Background(), "m", nil, nil)
if err != jsonrpc2.ErrClosed {
t.Errorf("got error %v, want %v", err, jsonrpc2.ErrClosed)
}
close(done)
}()
// Wait for the request to be sent before we close the connection.
<-ready
if err := nodeB.Close(); err != nil && err != jsonrpc2.ErrClosed {
t.Error(err)
}
assertDisconnect(t, nodeB, connB)
<-done
})
}
func assertDisconnect(t *testing.T, c *jsonrpc2.Conn, conn io.Writer) {
select {
case <-c.DisconnectNotify():
case <-time.After(200 * time.Millisecond):
t.Fatal("no disconnect notification")
}
// Assert that conn is closed by trying to write to it.
_, got := conn.Write(nil)
want := io.ErrClosedPipe
if got != want {
t.Fatalf("got %q, want %q", got, want)
}
}