From d235e2c6a5788ec4a6cff15a16f56b38a3876a0d Mon Sep 17 00:00:00 2001
From: Determinant <tederminant@gmail.com>
Date: Sun, 28 Jun 2020 14:47:41 -0400
Subject: ...

---
 rpc/server_test.go | 152 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 152 insertions(+)
 create mode 100644 rpc/server_test.go

(limited to 'rpc/server_test.go')

diff --git a/rpc/server_test.go b/rpc/server_test.go
new file mode 100644
index 0000000..3909954
--- /dev/null
+++ b/rpc/server_test.go
@@ -0,0 +1,152 @@
+// Copyright 2015 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package rpc
+
+import (
+	"bufio"
+	"bytes"
+	"io"
+	"io/ioutil"
+	"net"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestServerRegisterName(t *testing.T) {
+	server := NewServer()
+	service := new(testService)
+
+	if err := server.RegisterName("test", service); err != nil {
+		t.Fatalf("%v", err)
+	}
+
+	if len(server.services.services) != 2 {
+		t.Fatalf("Expected 2 service entries, got %d", len(server.services.services))
+	}
+
+	svc, ok := server.services.services["test"]
+	if !ok {
+		t.Fatalf("Expected service calc to be registered")
+	}
+
+	wantCallbacks := 7
+	if len(svc.callbacks) != wantCallbacks {
+		t.Errorf("Expected %d callbacks for service 'service', got %d", wantCallbacks, len(svc.callbacks))
+	}
+}
+
+func TestServer(t *testing.T) {
+	files, err := ioutil.ReadDir("testdata")
+	if err != nil {
+		t.Fatal("where'd my testdata go?")
+	}
+	for _, f := range files {
+		if f.IsDir() || strings.HasPrefix(f.Name(), ".") {
+			continue
+		}
+		path := filepath.Join("testdata", f.Name())
+		name := strings.TrimSuffix(f.Name(), filepath.Ext(f.Name()))
+		t.Run(name, func(t *testing.T) {
+			runTestScript(t, path)
+		})
+	}
+}
+
+func runTestScript(t *testing.T, file string) {
+	server := newTestServer()
+	content, err := ioutil.ReadFile(file)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	clientConn, serverConn := net.Pipe()
+	defer clientConn.Close()
+	go server.ServeCodec(NewJSONCodec(serverConn), OptionMethodInvocation|OptionSubscriptions)
+	readbuf := bufio.NewReader(clientConn)
+	for _, line := range strings.Split(string(content), "\n") {
+		line = strings.TrimSpace(line)
+		switch {
+		case len(line) == 0 || strings.HasPrefix(line, "//"):
+			// skip comments, blank lines
+			continue
+		case strings.HasPrefix(line, "--> "):
+			t.Log(line)
+			// write to connection
+			clientConn.SetWriteDeadline(time.Now().Add(5 * time.Second))
+			if _, err := io.WriteString(clientConn, line[4:]+"\n"); err != nil {
+				t.Fatalf("write error: %v", err)
+			}
+		case strings.HasPrefix(line, "<-- "):
+			t.Log(line)
+			want := line[4:]
+			// read line from connection and compare text
+			clientConn.SetReadDeadline(time.Now().Add(5 * time.Second))
+			sent, err := readbuf.ReadString('\n')
+			if err != nil {
+				t.Fatalf("read error: %v", err)
+			}
+			sent = strings.TrimRight(sent, "\r\n")
+			if sent != want {
+				t.Errorf("wrong line from server\ngot:  %s\nwant: %s", sent, want)
+			}
+		default:
+			panic("invalid line in test script: " + line)
+		}
+	}
+}
+
+// This test checks that responses are delivered for very short-lived connections that
+// only carry a single request.
+func TestServerShortLivedConn(t *testing.T) {
+	server := newTestServer()
+	defer server.Stop()
+
+	listener, err := net.Listen("tcp", "127.0.0.1:0")
+	if err != nil {
+		t.Fatal("can't listen:", err)
+	}
+	defer listener.Close()
+	go server.ServeListener(listener)
+
+	var (
+		request  = `{"jsonrpc":"2.0","id":1,"method":"rpc_modules"}` + "\n"
+		wantResp = `{"jsonrpc":"2.0","id":1,"result":{"nftest":"1.0","rpc":"1.0","test":"1.0"}}` + "\n"
+		deadline = time.Now().Add(10 * time.Second)
+	)
+	for i := 0; i < 20; i++ {
+		conn, err := net.Dial("tcp", listener.Addr().String())
+		if err != nil {
+			t.Fatal("can't dial:", err)
+		}
+		defer conn.Close()
+		conn.SetDeadline(deadline)
+		// Write the request, then half-close the connection so the server stops reading.
+		conn.Write([]byte(request))
+		conn.(*net.TCPConn).CloseWrite()
+		// Now try to get the response.
+		buf := make([]byte, 2000)
+		n, err := conn.Read(buf)
+		if err != nil {
+			t.Fatal("read error:", err)
+		}
+		if !bytes.Equal(buf[:n], []byte(wantResp)) {
+			t.Fatalf("wrong response: %s", buf[:n])
+		}
+	}
+}
-- 
cgit v1.2.3-70-g09d2