source: code/trunk/server_test.go@ 603

package soju

import (
        "net"
        "testing"

        "golang.org/x/crypto/bcrypt"
        "gopkg.in/irc.v3"
)

var testServerPrefix = &irc.Prefix{Name: "soju-test-server"}

const (
        testUsername = "soju-test-user"
        testPassword = testUsername
)

func createTempDB(t *testing.T) Database {
        db, err := OpenSqliteDB("sqlite3", ":memory:")
        if err != nil {
                t.Fatalf("failed to create temporary SQLite database: %v", err)
        }
        // :memory: will open a separate database for each new connection. Make
        // sure the sql package only uses a single connection. An alternative
        // solution is to use "file::memory:?cache=shared".
        db.(*SqliteDB).db.SetMaxOpenConns(1)
        return db
}

func createTestUser(t *testing.T, db Database) *User {
        hashed, err := bcrypt.GenerateFromPassword([]byte(testPassword), bcrypt.DefaultCost)
        if err != nil {
                t.Fatalf("failed to generate bcrypt hash: %v", err)
        }

        record := &User{Username: testUsername, Password: string(hashed)}
        if err := db.StoreUser(record); err != nil {
                t.Fatalf("failed to store test user: %v", err)
        }

        return record
}

func createTestDownstream(t *testing.T, srv *Server) ircConn {
        c1, c2 := net.Pipe()
        go srv.handle(newNetIRCConn(c1))
        return newNetIRCConn(c2)
}

type testUpstream struct {
        net.Listener
        Accept chan ircConn
}

func createTestUpstream(t *testing.T, db Database, user *User) (*Network, *testUpstream) {
        ln, err := net.Listen("tcp", "localhost:0")
        if err != nil {
                t.Fatalf("failed to create TCP listener: %v", err)
        }

        tu := &testUpstream{
                Listener: ln,
                Accept:   make(chan ircConn),
        }

        go func() {
                defer close(tu.Accept)

                for {
                        c, err := ln.Accept()
                        if isErrClosed(err) {
                                break
                        } else if err != nil {
                                t.Fatalf("failed accepting connection: %v", err)
                        }
                        tu.Accept <- newNetIRCConn(c)
                }
        }()

        network := &Network{
                Name:    "testnet",
                Addr:    "irc+insecure://" + ln.Addr().String(),
                Nick:    user.Username,
                Enabled: true,
        }
        if err := db.StoreNetwork(user.ID, network); err != nil {
                t.Fatalf("failed to store test network: %v", err)
        }

        return network, tu
}

func expectMessage(t *testing.T, c ircConn, cmd string) *irc.Message {
        msg, err := c.ReadMessage()
        if err != nil {
                t.Fatalf("failed to read IRC message (want %q): %v", cmd, err)
        }
        if msg.Command != cmd {
                t.Fatalf("invalid message received: want %q, got: %v", cmd, msg)
        }
        return msg
}

func registerDownstreamConn(t *testing.T, c ircConn, network *Network) {
        c.WriteMessage(&irc.Message{
                Command: "PASS",
                Params:  []string{testPassword},
        })
        c.WriteMessage(&irc.Message{
                Command: "NICK",
                Params:  []string{testUsername},
        })
        c.WriteMessage(&irc.Message{
                Command: "USER",
                Params:  []string{testUsername + "/" + network.Name, "0", "*", testUsername},
        })

        expectMessage(t, c, irc.RPL_WELCOME)
}

func registerUpstreamConn(t *testing.T, c ircConn) {
        msg := expectMessage(t, c, "CAP")
        if msg.Params[0] != "LS" {
                t.Fatalf("invalid CAP LS: got: %v", msg)
        }
        msg = expectMessage(t, c, "NICK")
        nick := msg.Params[0]
        if nick != testUsername {
                t.Fatalf("invalid NICK: want %q, got: %v", testUsername, msg)
        }
        expectMessage(t, c, "USER")

        c.WriteMessage(&irc.Message{
                Prefix:  testServerPrefix,
                Command: irc.RPL_WELCOME,
                Params:  []string{nick, "Welcome!"},
        })
        c.WriteMessage(&irc.Message{
                Prefix:  testServerPrefix,
                Command: irc.RPL_YOURHOST,
                Params:  []string{nick, "Your host is soju-test-server"},
        })
        c.WriteMessage(&irc.Message{
                Prefix:  testServerPrefix,
                Command: irc.RPL_CREATED,
                Params:  []string{nick, "Who cares when the server was created?"},
        })
        c.WriteMessage(&irc.Message{
                Prefix:  testServerPrefix,
                Command: irc.RPL_MYINFO,
                Params:  []string{nick, testServerPrefix.Name, "soju", "aiwroO", "OovaimnqpsrtklbeI"},
        })
        c.WriteMessage(&irc.Message{
                Prefix:  testServerPrefix,
                Command: irc.ERR_NOMOTD,
                Params:  []string{nick, "No MOTD"},
        })
}

func TestServer(t *testing.T) {
        db := createTempDB(t)
        user := createTestUser(t, db)
        network, upstream := createTestUpstream(t, db, user)
        defer upstream.Close()

        srv := NewServer(db)
        if err := srv.Start(); err != nil {
                t.Fatalf("failed to start server: %v", err)
        }
        defer srv.Shutdown()

        uc := <-upstream.Accept
        defer uc.Close()
        registerUpstreamConn(t, uc)

        dc := createTestDownstream(t, srv)
        defer dc.Close()
        registerDownstreamConn(t, dc, network)

        noticeText := "This is a very important server notice."
        uc.WriteMessage(&irc.Message{
                Prefix:  testServerPrefix,
                Command: "NOTICE",
                Params:  []string{testUsername, noticeText},
        })

        var msg *irc.Message
        for {
                var err error
                msg, err = dc.ReadMessage()
                if err != nil {
                        t.Fatalf("failed to read IRC message: %v", err)
                }
                if msg.Command == "NOTICE" {
                        break
                }
        }

        if msg.Params[1] != noticeText {
                t.Fatalf("invalid NOTICE text: want %q, got: %v", noticeText, msg)
        }
}