Start rewriting integration tests in Go instead of bash

integration/reconnect_test.go

@@ -0,0 +1,144 @@
+// Copyright (C) 2014 Jakob Borg and Contributors (see the CONTRIBUTORS file).
+// All rights reserved. Use of this source code is governed by an MIT-style
+// license that can be found in the LICENSE file.
+
+package integration_test
+
+import (
+	"sync"
+	"testing"
+	"time"
+)
+
+const (
+	apiKey = "abc123" // Used when talking to the processes under test
+	id1    = "I6KAH76-66SLLLB-5PFXSOA-UFJCDZC-YAOMLEK-CP2GB32-BV5RQST-3PSROAU"
+	id2    = "JMFJCXB-GZDE4BN-OCJE3VF-65GYZNU-AIVJRET-3J6HMRQ-AUQIGJO-FKNHMQU"
+)
+
+var env = []string{
+	"HOME=.",
+	"STTRACE=model",
+}
+
+func TestRestartBothDuringTransfer(t *testing.T) {
+	// Give the receiver some time to rot with needed files but
+	// without any peer. This triggers
+	// https://github.com/syncthing/syncthing/issues/463
+	testRestartDuringTransfer(t, true, true, 10*time.Second, 0)
+}
+
+func TestRestartReceiverDuringTransfer(t *testing.T) {
+	testRestartDuringTransfer(t, false, true, 0, 0)
+}
+
+func TestRestartSenderDuringTransfer(t *testing.T) {
+	testRestartDuringTransfer(t, true, false, 0, 0)
+}
+
+func testRestartDuringTransfer(t *testing.T, restartSender, restartReceiver bool, senderDelay, receiverDelay time.Duration) {
+	if testing.Short() {
+		t.Skip("skipping integration test")
+		return
+	}
+
+	t.Log("Cleaning...")
+	err := removeAll("s1", "s2", "f1/index", "f2/index")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	t.Log("Generating files...")
+	err = generateFiles("s1", 1000, 20, "../bin/syncthing")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	t.Log("Starting up...")
+	sender := syncthingProcess{ // id1
+		log:  "1.out",
+		argv: []string{"-home", "f1"},
+		port: 8081,
+	}
+	err = sender.start()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	receiver := syncthingProcess{ // id2
+		log:  "2.out",
+		argv: []string{"-home", "f2"},
+		port: 8082,
+	}
+	err = receiver.start()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Give them time to start up
+	time.Sleep(1 * time.Second)
+
+	var prevComp int
+	for {
+		comp, err := sender.peerCompletion()
+		if err != nil {
+			sender.stop()
+			receiver.stop()
+			t.Fatal(err)
+		}
+
+		curComp := comp[id2]
+
+		if curComp == 100 {
+			sender.stop()
+			receiver.stop()
+			break
+		}
+
+		if curComp > prevComp {
+			if restartReceiver {
+				t.Logf("Stopping receiver...")
+				receiver.stop()
+			}
+
+			if restartSender {
+				t.Logf("Stopping sender...")
+				sender.stop()
+			}
+
+			var wg sync.WaitGroup
+
+			if restartReceiver {
+				wg.Add(1)
+				go func() {
+					time.Sleep(receiverDelay)
+					t.Logf("Starting receiver...")
+					receiver.start()
+					wg.Done()
+				}()
+			}
+
+			if restartSender {
+				wg.Add(1)
+				go func() {
+					time.Sleep(senderDelay)
+					t.Logf("Starting sender...")
+					sender.start()
+					wg.Done()
+				}()
+			}
+
+			wg.Wait()
+
+			prevComp = curComp
+		}
+
+		time.Sleep(1 * time.Second)
+	}
+
+	t.Log("Comparing directories...")
+	err = compareDirectories("s1", "s2")
+	if err != nil {
+		t.Fatal(err)
+	}
+}