Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use Diagnose method of proxyapp Package

Best Syzkaller code snippet using proxyapp.Diagnose

proxyappclient_test.go

Source:proxyappclient_test.go

...238		On("Close", mock.Anything, mock.Anything).239		Return(fmt.Errorf("mock error"))240	inst.Close()241}242func TestInstance_Diagnose_Ok(t *testing.T) {243	mockInstance, inst := createInstanceFixture(t)244	mockInstance.245		On("Diagnose", mock.Anything, mock.Anything).246		Run(func(args mock.Arguments) {247			out := args.Get(1).(*proxyrpc.DiagnoseReply)248			out.Diagnosis = "diagnostic result"249		}).250		Return(nil)251	diagnosis, wait := inst.Diagnose(nil)252	assert.NotNil(t, diagnosis)253	assert.Equal(t, wait, false)254	diagnosis, wait = inst.Diagnose(&report.Report{})255	assert.NotNil(t, diagnosis)256	assert.Equal(t, wait, false)257}258func TestInstance_Diagnose_Failure(t *testing.T) {259	mockInstance, inst := createInstanceFixture(t)260	mockInstance.261		On("Diagnose", mock.Anything, mock.Anything).262		Return(fmt.Errorf("diagnose failed"))263	diagnosis, wait := inst.Diagnose(&report.Report{})264	assert.Nil(t, diagnosis)265	assert.Equal(t, wait, false)266}267func TestInstance_Copy_OK(t *testing.T) {268	mockInstance, inst := createInstanceFixture(t)269	mockInstance.270		On("Copy", mock.Anything, mock.Anything).271		Run(func(args mock.Arguments) {272			out := args.Get(1).(*proxyrpc.CopyResult)273			out.VMFileName = "remote_file_path"274		}).275		Return(nil)276	remotePath, err := inst.Copy("host/path")277	assert.Nil(t, err)...

vm.go

Source:vm.go

...155func (inst *Instance) diagnose(rep *report.Report) ([]byte, bool) {156	if rep == nil {157		panic("rep is nil")158	}159	return inst.impl.Diagnose(rep)160}161func (inst *Instance) Close() {162	inst.impl.Close()163	os.RemoveAll(inst.workdir)164	inst.onClose()165}166type ExitCondition int167const (168	// The program is allowed to exit after timeout.169	ExitTimeout = ExitCondition(1 << iota)170	// The program is allowed to exit with no errors.171	ExitNormal172	// The program is allowed to exit with errors.173	ExitError174)175// MonitorExecution monitors execution of a program running inside of a VM.176// It detects kernel oopses in output, lost connections, hangs, etc.177// outc/errc is what vm.Instance.Run returns, reporter parses kernel output for oopses.178// Exit says which exit modes should be considered as errors/OK.179// Returns a non-symbolized crash report, or nil if no error happens.180func (inst *Instance) MonitorExecution(outc <-chan []byte, errc <-chan error,181	reporter *report.Reporter, exit ExitCondition) (rep *report.Report) {182	return inst.MonitorExecutionRaw(outc, errc, reporter, exit, 0).Report183}184type ExecutionResult struct {185	Report    *report.Report186	RawOutput []byte187}188func (inst *Instance) MonitorExecutionRaw(outc <-chan []byte, errc <-chan error,189	reporter *report.Reporter, exit ExitCondition, beforeContextSize int) (res *ExecutionResult) {190	if beforeContextSize == 0 {191		beforeContextSize = beforeContextDefault192	}193	mon := &monitor{194		inst:          inst,195		outc:          outc,196		errc:          errc,197		reporter:      reporter,198		beforeContext: beforeContextSize,199		exit:          exit,200	}201	return &ExecutionResult{202		Report:    mon.monitorExecution(),203		RawOutput: mon.output,204	}205}206type monitor struct {207	inst          *Instance208	outc          <-chan []byte209	errc          <-chan error210	reporter      *report.Reporter211	exit          ExitCondition212	output        []byte213	beforeContext int214	matchPos      int215}216func (mon *monitor) monitorExecution() *report.Report {217	ticker := time.NewTicker(tickerPeriod * mon.inst.timeouts.Scale)218	defer ticker.Stop()219	lastExecuteTime := time.Now()220	for {221		select {222		case err := <-mon.errc:223			switch err {224			case nil:225				// The program has exited without errors,226				// but wait for kernel output in case there is some delayed oops.227				crash := ""228				if mon.exit&ExitNormal == 0 {229					crash = lostConnectionCrash230				}231				return mon.extractError(crash)232			case ErrTimeout:233				if mon.exit&ExitTimeout == 0 {234					return mon.extractError(timeoutCrash)235				}236				return nil237			default:238				// Note: connection lost can race with a kernel oops message.239				// In such case we want to return the kernel oops.240				crash := ""241				if mon.exit&ExitError == 0 {242					crash = lostConnectionCrash243				}244				return mon.extractError(crash)245			}246		case out, ok := <-mon.outc:247			if !ok {248				mon.outc = nil249				continue250			}251			lastPos := len(mon.output)252			mon.output = append(mon.output, out...)253			if bytes.Contains(mon.output[lastPos:], executingProgram1) ||254				bytes.Contains(mon.output[lastPos:], executingProgram2) {255				lastExecuteTime = time.Now()256			}257			if mon.reporter.ContainsCrash(mon.output[mon.matchPos:]) {258				return mon.extractError("unknown error")259			}260			if len(mon.output) > 2*mon.beforeContext {261				copy(mon.output, mon.output[len(mon.output)-mon.beforeContext:])262				mon.output = mon.output[:mon.beforeContext]263			}264			// Find the starting position for crash matching on the next iteration.265			// We step back from the end of output by maxErrorLength to handle the case266			// when a crash line is currently split/incomplete. And then we try to find267			// the preceding '\n' to have a full line. This is required to handle268			// the case when a particular pattern is ignored as crash, but a suffix269			// of the pattern is detected as crash (e.g. "ODEBUG:" is trimmed to "BUG:").270			mon.matchPos = len(mon.output) - maxErrorLength271			for i := 0; i < maxErrorLength; i++ {272				if mon.matchPos <= 0 || mon.output[mon.matchPos-1] == '\n' {273					break274				}275				mon.matchPos--276			}277			if mon.matchPos < 0 {278				mon.matchPos = 0279			}280		case <-ticker.C:281			// Detect both "no output whatsoever" and "kernel episodically prints282			// something to console, but fuzzer is not actually executing programs".283			if time.Since(lastExecuteTime) > mon.inst.timeouts.NoOutput {284				return mon.extractError(noOutputCrash)285			}286		case <-Shutdown:287			return nil288		}289	}290}291func (mon *monitor) extractError(defaultError string) *report.Report {292	diagOutput, diagWait := []byte{}, false293	if defaultError != "" {294		diagOutput, diagWait = mon.inst.diagnose(mon.createReport(defaultError))295	}296	// Give it some time to finish writing the error message.297	// But don't wait for "no output", we already waited enough.298	if defaultError != noOutputCrash || diagWait {299		mon.waitForOutput()300	}301	if bytes.Contains(mon.output, []byte(fuzzerPreemptedStr)) {302		return nil303	}304	if defaultError == "" && mon.reporter.ContainsCrash(mon.output[mon.matchPos:]) {305		// We did not call Diagnose above because we thought there is no error, so call it now.306		diagOutput, diagWait = mon.inst.diagnose(mon.createReport(defaultError))307		if diagWait {308			mon.waitForOutput()309		}310	}311	rep := mon.createReport(defaultError)312	if rep == nil {313		return nil314	}315	if len(diagOutput) > 0 {316		rep.Output = append(rep.Output, vmDiagnosisStart...)317		rep.Output = append(rep.Output, diagOutput...)318	}319	return rep...

proxyappclient.go

Source:proxyappclient.go

...307	if err != nil {308		log.Logf(0, "error calling runStop(%v) on %v: %v", runID, inst.ID, err)309	}310}311func (inst *instance) Diagnose(r *report.Report) (diagnosis []byte, wait bool) {312	var title string313	if r != nil {314		title = r.Title315	}316	var reply proxyrpc.DiagnoseReply317	err := inst.ProxyApp.Call(318		"ProxyVM.Diagnose",319		proxyrpc.DiagnoseParams{320			ID:          inst.ID,321			ReasonTitle: title,322		},323		&reply)324	if err != nil {325		return nil, false326	}327	return []byte(reply.Diagnosis), false328}329func (inst *instance) Close() {330	var reply proxyrpc.CloseReply331	err := inst.ProxyApp.Call(332		"ProxyVM.Close",333		proxyrpc.CloseParams{...

Diagnose

Using AI Code Generation

1myProxyApp.Diagnose();2myProxyApp.Diagnose();3myProxyApp.Diagnose();4myProxyApp.Diagnose();5myProxyApp.Diagnose();6myProxyApp.Diagnose();7myProxyApp.Diagnose();8myProxyApp.Diagnose();9myProxyApp.Diagnose();10myProxyApp.Diagnose();11myProxyApp.Diagnose();12myProxyApp.Diagnose();13myProxyApp.Diagnose();14myProxyApp.Diagnose();15myProxyApp.Diagnose();16myProxyApp.Diagnose();17myProxyApp.Diagnose();18myProxyApp.Diagnose();19myProxyApp.Diagnose();

Diagnose

Using AI Code Generation

1import (2func main() {3	app.Diagnose()4}5import (6func main() {7	app.Diagnose()8}9import (10func main() {11	app.Diagnose()12}13import (14func main() {15	app.Diagnose()16}17import (18func main() {19	app.Diagnose()20}21import (22func main() {23	app.Diagnose()24}25import (26func main() {27	app.Diagnose()28}29import (30func main() {31	app.Diagnose()32}33import (34func main() {35	app.Diagnose()36}37import (38func main() {39	app.Diagnose()40}

Diagnose

Using AI Code Generation

1import (2func main() {3	proxyapp.Diagnose()4	fmt.Println("End of main")5}6import (7func Diagnose() {8	fmt.Println("Diagnose method of proxyapp class")9}10import (11func Diagnose() {12	fmt.Println("Diagnose method of proxyapp class")13}14import (15func Diagnose() {16	fmt.Println("Diagnose method of proxyapp class")17}18import (19func Diagnose() {20	fmt.Println("Diagnose method of proxyapp class")21}22import (23func Diagnose() {24	fmt.Println("Diagnose method of proxyapp class")25}26import (27func Diagnose() {28	fmt.Println("Diagnose method of proxyapp class")29}30import (31func Diagnose() {32	fmt.Println("Diagnose method of proxyapp class")33}34import (35func Diagnose() {36	fmt.Println("Diagnose method of proxyapp class")37}38import (39func Diagnose() {40	fmt.Println("Diagnose method of proxyapp class")41}

Diagnose

Using AI Code Generation

1import (2func main() {3	proxyappObj.Diagnose()4	fmt.Println("ProxyApp main function")5}6import (7type ProxyApp struct {8}9func (p ProxyApp) Diagnose() {10	fmt.Println("Diagnose method of ProxyApp")11}

Diagnose

Using AI Code Generation

1import (2func main() {3	proxyapp.Diagnose()4}5import (6func Diagnose() {7	diagnose.Diagnose()8}9import (10func Diagnose() {11	health.Health()12}13import (14func Health() {15	heart.Heart()16}17import (18func Heart() {19	lung.Lung()20}21import (22func Lung() {23	fmt.Println("Diagnose")24}25import (26func main() {27	proxyapp.Diagnose()28}29import (30func Diagnose() {31	diagnose.Diagnose()32}33import (

Diagnose

Using AI Code Generation

1import (2func main() {3    var proxy = proxyapp.NewProxy()4    if err != nil {5        fmt.Println(err)6    }7}82018/05/06 01:23:05 Content-Type: text/html; charset=ISO-8859-192018/05/06 01:23:05 Set-Cookie: 1P_JAR=2018-05-03-15; expires=Sat, 02-Jun-2018 15:53:04 GMT; path=/; domain=.google.com102018/05/06 01:23:05 Set-Cookie: NID=133=U9OZlR8rM1r7vYiDpMw7yR8iLWV6Ivq3NqV6Uc8BnWQ2Y1sJbZnBjy8TmWkzvZ9D9Xm7nT6s0sQsL1JfM2yVcA0oWd7VzvB9X1xV0sL8Wb7rYvD; expires=Fri, 02-Nov-2018 15:53:04

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.