Golang C.Errorf方法代码示例

func (s *statusSuite) TestCheck(c *gc.C) {
	results := debugstatus.Check(
		makeCheckerFunc("check1", "check1 name", "value1", true),
		makeCheckerFunc("check2", "check2 name", "value2", false),
		makeCheckerFunc("check3", "check3 name", "value3", true),
	)
	for key, r := range results {
		if r.Duration < time.Microsecond {
			c.Errorf("got %v want >1µs", r.Duration)
		}
		r.Duration = 0
		results[key] = r
	}

	c.Assert(results, jc.DeepEquals, map[string]debugstatus.CheckResult{
		"check1": {
			Name:   "check1 name",
			Value:  "value1",
			Passed: true,
		},
		"check2": {
			Name:   "check2 name",
			Value:  "value2",
			Passed: false,
		},
		"check3": {
			Name:   "check3 name",
			Value:  "value3",
			Passed: true,
		},
	})
}

func (s *workerSuite) TestWorkerPublishesInstanceIds(c *gc.C) {
	DoTestForIPv4AndIPv6(func(ipVersion TestIPVersion) {
		s.PatchValue(&pollInterval, coretesting.LongWait+time.Second)
		s.PatchValue(&initialRetryInterval, 5*time.Millisecond)
		s.PatchValue(&maxRetryInterval, initialRetryInterval)

		publishCh := make(chan []instance.Id, 100)

		publish := func(apiServers [][]network.HostPort, instanceIds []instance.Id) error {
			publishCh <- instanceIds
			return nil
		}
		st := NewFakeState()
		InitState(c, st, 3, ipVersion)

		w := newWorker(st, PublisherFunc(publish))
		defer func() {
			c.Check(worker.Stop(w), gc.IsNil)
		}()

		select {
		case instanceIds := <-publishCh:
			c.Assert(instanceIds, jc.SameContents, []instance.Id{"id-10", "id-11", "id-12"})
		case <-time.After(coretesting.LongWait):
			c.Errorf("timed out waiting for publish")
		}
	})
}

func (s *LogReaderSuite) TestNextError(c *gc.C) {
	cUUID := "feebdaed-2f18-4fd2-967d-db9663db7bea"
	stub := &testing.Stub{}
	conn := &mockConnector{stub: stub}
	jsonReader := mockStream{stub: stub}
	conn.ReturnConnectStream = jsonReader
	failure := errors.New("an error")
	stub.SetErrors(nil, failure)
	var cfg params.LogStreamConfig
	stream, err := logstream.Open(conn, cfg, cUUID)
	c.Assert(err, gc.IsNil)

	var nextErr error
	done := make(chan struct{})
	go func() {
		_, nextErr = stream.Next()
		c.Check(errors.Cause(nextErr), gc.Equals, failure)
		close(done)
	}()
	select {
	case <-done:
	case <-time.After(coretesting.LongWait):
		c.Errorf("timed out waiting for record")
	}
	stub.CheckCallNames(c, "ConnectStream", "ReadJSON")
}

func (s *RunHookSuite) TestRunHook(c *gc.C) {
	for i, t := range runHookTests {
		c.Logf("\ntest %d: %s; perm %v", i, t.summary, t.spec.perm)
		ctx, err := s.contextFactory.HookContext(hook.Info{Kind: hooks.ConfigChanged})
		c.Assert(err, jc.ErrorIsNil)

		paths := runnertesting.NewRealPaths(c)
		rnr := runner.NewRunner(ctx, paths)
		var hookExists bool
		if t.spec.perm != 0 {
			spec := t.spec
			spec.dir = "hooks"
			spec.name = hookName
			c.Logf("makeCharm %#v", spec)
			makeCharm(c, spec, paths.GetCharmDir())
			hookExists = true
		}
		t0 := time.Now()
		err = rnr.RunHook("something-happened")
		if t.err == "" && hookExists {
			c.Assert(err, jc.ErrorIsNil)
		} else if !hookExists {
			c.Assert(context.IsMissingHookError(err), jc.IsTrue)
		} else {
			c.Assert(err, gc.ErrorMatches, t.err)
		}
		if t.spec.background != "" && time.Now().Sub(t0) > 5*time.Second {
			c.Errorf("background process holding up hook execution")
		}
	}
}

func (t *LiveTests) TestStopInstances(c *gc.C) {
	t.PrepareOnce(c)
	// It would be nice if this test was in jujutest, but
	// there's no way for jujutest to fabricate a valid-looking
	// instance id.
	inst0, _ := testing.AssertStartInstance(c, t.Env, "40")
	inst1 := ec2.FabricateInstance(inst0, "i-aaaaaaaa")
	inst2, _ := testing.AssertStartInstance(c, t.Env, "41")

	err := t.Env.StopInstances(inst0.Id(), inst1.Id(), inst2.Id())
	c.Check(err, jc.ErrorIsNil)

	var insts []instance.Instance

	// We need the retry logic here because we are waiting
	// for Instances to return an error, and it will not retry
	// if it succeeds.
	gone := false
	for a := ec2.ShortAttempt.Start(); a.Next(); {
		insts, err = t.Env.Instances([]instance.Id{inst0.Id(), inst2.Id()})
		if err == environs.ErrPartialInstances {
			// instances not gone yet.
			continue
		}
		if err == environs.ErrNoInstances {
			gone = true
			break
		}
		c.Fatalf("error getting instances: %v", err)
	}
	if !gone {
		c.Errorf("after termination, instances remaining: %v", insts)
	}
}

func (s *RethinkSuite) TestGeospatialDecodeGeometryPseudoType(c *test.C) {
	var response types.Geometry

	// setup coordinates
	coords := [][][]float64{
		{
			{-122.423246, 37.779388},
			{-122.423246, 37.329898},
			{-121.88642, 37.329898},
			{-121.88642, 37.329898},
			{-122.423246, 37.779388},
		},
	}

	gt := "Polygon"
	res, err := Expr(map[string]interface{}{
		"$reql_type$": "GEOMETRY",
		"type":        "Polygon",
		"coordinates": coords,
	}).Run(session)
	c.Assert(err, test.IsNil)

	err = res.One(&response)
	c.Assert(err, test.IsNil)

	// test shape
	if response.Type != gt {
		c.Errorf("expected [%v], instead [%v]", gt, response.Type)
	}

	// assert points are within threshold
	c.Assert(response, geometryEquals, "Polygon", coords)
}

func (tnw *testNotifyWatcher) TriggerChange(c *gc.C) {
	select {
	case tnw.changes <- struct{}{}:
	case <-time.After(coretesting.LongWait):
		c.Errorf("timed out trying to trigger a change")
	}
}

func (s *leadershipSuite) TestClaimLeadership(c *gc.C) {

	client := leadership.NewClient(s.apiState)

	err := client.ClaimLeadership(s.serviceId, s.unitId, 10*time.Second)
	c.Assert(err, jc.ErrorIsNil)

	tokens, err := s.State.LeasePersistor.PersistedTokens()
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(tokens, gc.HasLen, 1)
	c.Assert(tokens[0].Namespace, gc.Equals, "mysql-leadership")
	c.Assert(tokens[0].Id, gc.Equals, "mysql/0")

	unblocked := make(chan struct{})
	go func() {
		err := client.BlockUntilLeadershipReleased(s.serviceId)
		c.Check(err, jc.ErrorIsNil)
		unblocked <- struct{}{}
	}()

	time.Sleep(coretesting.ShortWait)

	select {
	case <-time.After(15 * time.Second):
		c.Errorf("Timed out waiting for leadership to release.")
	case <-unblocked:
	}
}

func (s *leadershipSuite) TestUnblock(c *gc.C) {

	client := leadership.NewClient(s.apiState)

	err := client.ClaimLeadership(s.serviceId, s.unitId, 10*time.Second)
	c.Assert(err, jc.ErrorIsNil)

	unblocked := make(chan struct{})
	go func() {
		err := client.BlockUntilLeadershipReleased(s.serviceId)
		c.Check(err, jc.ErrorIsNil)
		unblocked <- struct{}{}
	}()

	time.Sleep(coretesting.ShortWait)

	err = client.ReleaseLeadership(s.serviceId, s.unitId)
	c.Assert(err, jc.ErrorIsNil)

	select {
	case <-time.After(coretesting.LongWait):
		c.Errorf("Timed out waiting for leadership to release.")
	case <-unblocked:
	}
}

func (s *migrateSuite) TestNoNameClashes(c *gc.C) {
	nameCounts := make(map[string]int)
	doAllBundles(c, func(c *gc.C, id string, data []byte) {
		nameCounts[id]++
	})
	// There are actually two name clashes in the real
	// in-the-wild bundles:
	//     cs:~charmers/bundle/mediawiki-scalable
	//     cs:~charmers/bundle/mongodb-cluster
	// Both of these actually fit with our proposed scheme,
	// because they're (almost) identical with the bundles
	// within mediawiki and mongodb respectively.
	//
	// So we discount them from our example bundles.
	delete(nameCounts, "cs:~charmers/bundle/mongodb-cluster")
	delete(nameCounts, "cs:~charmers/bundle/mediawiki-scalable")

	doAllBundles(c, func(c *gc.C, id string, data []byte) {
		var bundles map[string]*legacyBundle
		err := yaml.Unmarshal(data, &bundles)
		c.Assert(err, gc.IsNil)
		if len(bundles) == 1 {
			return
		}
		for name := range bundles {
			subId := id + "-" + name
			nameCounts[subId]++
		}
	})
	for name, count := range nameCounts {
		if count != 1 {
			c.Errorf("%d clashes at %s", count-1, name)
		}
	}
}

func (s *environSuite) TestStop(c *gc.C) {
	s.st.SetErrors(
		nil,                // WatchForEnvironConfigChanges
		errors.New("err1"), // Changes (closing the channel)
	)
	s.st.SetConfig(c, coretesting.Attrs{
		"type": "invalid",
	})

	w, err := s.st.WatchForEnvironConfigChanges()
	c.Assert(err, jc.ErrorIsNil)
	defer stopWatcher(c, w)
	stop := make(chan struct{})
	close(stop) // close immediately so the loop exits.
	done := make(chan error)
	go func() {
		env, err := worker.WaitForEnviron(w, s.st, stop)
		c.Check(env, gc.IsNil)
		done <- err
	}()
	select {
	case <-worker.LoadedInvalid:
		c.Errorf("expected changes watcher to be closed")
	case err := <-done:
		c.Assert(err, gc.Equals, tomb.ErrDying)
	case <-time.After(coretesting.LongWait):
		c.Fatalf("timeout waiting for the WaitForEnviron to stop")
	}
	s.st.CheckCallNames(c, "WatchForEnvironConfigChanges", "Changes")
}

func (s *EngineSuite) TestStartAbortOnEngineKill(c *gc.C) {
	s.fix.run(c, func(engine *dependency.Engine) {
		starts := make(chan struct{}, 1000)
		manifold := dependency.Manifold{
			Start: func(context dependency.Context) (worker.Worker, error) {
				starts <- struct{}{}
				select {
				case <-context.Abort():
				case <-time.After(coretesting.LongWait):
					c.Errorf("timed out")
				}
				return nil, errors.New("whatever")
			},
		}
		err := engine.Install("task", manifold)
		c.Assert(err, jc.ErrorIsNil)

		select {
		case <-starts:
		case <-time.After(coretesting.LongWait):
			c.Fatalf("timed out")
		}
		workertest.CleanKill(c, engine)

		select {
		case <-starts:
			c.Fatalf("unexpected start")
		default:
		}
	})
}

// NewSeqPrompter returns a prompter that can be used to check a sequence of
// IO interactions. Expected input from the user is marked with the
// given user input marker (for example a distinctive unicode character
// that will not occur in the rest of the text) and runs to the end of a
// line.
//
// All output text in between user input is treated as regular expressions.
//
// As a special case, if an input marker is followed only by a single input
// marker on that line, the checker will cause io.EOF to be returned for
// that prompt.
//
// The returned SeqPrompter wraps a Prompter and checks that each
// read and write corresponds to the expected action in the sequence.
//
// After all interaction is done, CheckDone or AssertDone should be called to
// check that no more interactions are expected.
//
// Any failures will result in the test failing.
//
// For example given the prompter created with:
//
//		checker := NewSeqPrompter(c, "»",  `What is your name: »Bob
//	And your age: »148
//	You're .* old, Bob!
//	`)
//
// The following code will pass the checker:
//
//	fmt.Fprintf(checker, "What is your name: ")
//	buf := make([]byte, 100)
//	n, _ := checker.Read(buf)
//	name := strings.TrimSpace(string(buf[0:n]))
//	fmt.Fprintf(checker, "And your age: ")
//	n, _ = checker.Read(buf)
//	age, err := strconv.Atoi(strings.TrimSpace(string(buf[0:n])))
//	c.Assert(err, gc.IsNil)
//	if age > 90 {
//		fmt.Fprintf(checker, "You're very old, %s!\n", name)
//	}
//	checker.CheckDone()
func NewSeqPrompter(c *gc.C, userInputMarker, text string) *SeqPrompter {
	p := &SeqPrompter{
		c: c,
	}
	for {
		i := strings.Index(text, userInputMarker)
		if i == -1 {
			p.finalText = text
			break
		}
		prompt := text[0:i]
		text = text[i+len(userInputMarker):]
		endLine := strings.Index(text, "\n")
		if endLine == -1 {
			c.Errorf("no newline found after expected input %q", text)
		}
		reply := text[0 : endLine+1]
		if reply[0:len(reply)-1] == userInputMarker {
			// EOF line.
			reply = ""
		}
		text = text[endLine+1:]
		if prompt == "" && len(p.ios) > 0 {
			// Combine multiple contiguous inputs together.
			p.ios[len(p.ios)-1].reply += reply
		} else {
			p.ios = append(p.ios, ioInteraction{
				prompt: prompt,
				reply:  reply,
			})
		}
	}
	p.Prompter = NewPrompter(p.prompt)
	return p
}

func (s *HeaderSuite) TestHeaderResponseProtectedKey(c *chk.C) {
	res, err := headerClient.ResponseProtectedKey()
	c.Assert(err, chk.IsNil)
	if !(strings.Contains(res.Response.Header["Content-Type"][0], "text/html")) {
		c.Errorf("Expected to contain '%v', got %v\n", "text/html", res.Response.Header["Content-Type"][0])
	}
}

func (s *watcherSuite) TestWatchInitialEventConsumed(c *gc.C) {
	// Machiner.Watch should send the initial event as part of the Watch
	// call (for NotifyWatchers there is no state to be transmitted). So a
	// call to Next() should not have anything to return.
	var results params.NotifyWatchResults
	args := params.Entities{Entities: []params.Entity{{Tag: s.rawMachine.Tag().String()}}}
	err := s.stateAPI.APICall("Machiner", s.stateAPI.BestFacadeVersion("Machiner"), "", "Watch", args, &results)
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(results.Results, gc.HasLen, 1)
	result := results.Results[0]
	c.Assert(result.Error, gc.IsNil)

	// We expect the Call() to "Next" to block, so run it in a goroutine.
	done := make(chan error)
	go func() {
		ignored := struct{}{}
		done <- s.stateAPI.APICall("NotifyWatcher", s.stateAPI.BestFacadeVersion("NotifyWatcher"), result.NotifyWatcherId, "Next", nil, &ignored)
	}()

	select {
	case err := <-done:
		c.Errorf("Call(Next) did not block immediately after Watch(): err %v", err)
	case <-time.After(coretesting.ShortWait):
	}
}