How to use crashErrors method of bisect Package

Best Syzkaller code snippet using bisect.crashErrors

bisect_test.go

Source:bisect_test.go

...37	if commit >= env.test.brokenStart && commit <= env.test.brokenEnd {38		return nil, fmt.Errorf("broken build")39	}40	if !env.test.fix && commit >= env.test.culprit || env.test.fix && commit < env.test.culprit {41		return crashErrors(numVMs, "crash occurs"), nil42	}43	return make([]error, numVMs), nil44}45func (env *testEnv) headCommit() int {46	com, err := env.r.HeadCommit()47	if err != nil {48		env.t.Fatal(err)49	}50	commit, err := strconv.ParseUint(com.Title, 10, 64)51	if err != nil {52		env.t.Fatalf("invalid commit title: %v", com.Title)53	}54	return int(commit)55}56func createTestRepo(t *testing.T) string {57	baseDir, err := ioutil.TempDir("", "syz-bisect-test")58	if err != nil {59		t.Fatal(err)60	}61	repo := vcs.CreateTestRepo(t, baseDir, "")62	if !repo.SupportsBisection() {63		t.Skip("bisection is unsupported by git (probably too old version)")64	}65	for rv := 4; rv < 10; rv++ {66		for i := 0; i < 6; i++ {67			if rv == 7 && i == 0 {68				// Create a slightly special commit graph here (for #1527):69				// Commit 650 is part of 700 release, but it does not have70				// 600 (the previous release) in parents, instead it's based71				// on the previous-previous release 500.72				repo.Git("checkout", "v5.0")73				com := repo.CommitChange("650")74				repo.Git("checkout", "master")75				repo.Git("merge", "-m", "700", com.Hash)76			} else {77				repo.CommitChange(fmt.Sprintf("%v", rv*100+i))78			}79			if i == 0 {80				repo.SetTag(fmt.Sprintf("v%v.0", rv))81			}82		}83	}84	return baseDir85}86func runBisection(t *testing.T, baseDir string, test BisectionTest) (*Result, error) {87	r, err := vcs.NewRepo("test", "64", baseDir)88	if err != nil {89		t.Fatal(err)90	}91	r.SwitchCommit("master")92	sc, err := r.GetCommitByTitle(fmt.Sprint(test.startCommit))93	if err != nil {94		t.Fatal(err)95	}96	trace := new(bytes.Buffer)97	cfg := &Config{98		Fix:   test.fix,99		Trace: trace,100		Manager: mgrconfig.Config{101			TargetOS:     "test",102			TargetVMArch: "64",103			Type:         "qemu",104			KernelSrc:    baseDir,105		},106		Kernel: KernelConfig{107			Repo:   baseDir,108			Commit: sc.Hash,109		},110	}111	inst := &testEnv{112		t:    t,113		r:    r,114		test: test,115	}116	res, err := runImpl(cfg, r, r.(vcs.Bisecter), inst)117	t.Log(trace.String())118	return res, err119}120type BisectionTest struct {121	// input environment122	name        string123	fix         bool124	startCommit int125	brokenStart int126	brokenEnd   int127	// Range of commits that result in the same kernel binary signature.128	sameBinaryStart int129	sameBinaryEnd   int130	// expected output131	expectErr    bool132	expectRep    bool133	noopChange   bool134	isRelease    bool135	commitLen    int136	oldestLatest int137	// input and output138	culprit int139}140var bisectionTests = []BisectionTest{141	// Tests that bisection returns the correct cause commit.142	{143		name:        "cause-finds-cause",144		startCommit: 905,145		commitLen:   1,146		expectRep:   true,147		culprit:     602,148	},149	// Tests that cause bisection returns error when crash does not reproduce150	// on the original commit.151	{152		name:        "cause-does-not-repro",153		startCommit: 400,154		expectErr:   true,155	},156	// Tests that no commits are returned when crash occurs on oldest commit157	// for cause bisection.158	{159		name:         "cause-crashes-oldest",160		startCommit:  905,161		commitLen:    0,162		expectRep:    true,163		culprit:      0,164		oldestLatest: 400,165	},166	// Tests that more than 1 commit is returned when cause bisection is inconclusive.167	{168		name:        "cause-inconclusive",169		startCommit: 802,170		brokenStart: 500,171		brokenEnd:   700,172		commitLen:   15,173		culprit:     605,174	},175	// Tests that bisection returns the correct fix commit.176	{177		name:        "fix-finds-fix",178		fix:         true,179		startCommit: 400,180		commitLen:   1,181		culprit:     500,182		isRelease:   true,183	},184	// Tests that fix bisection returns error when crash does not reproduce185	// on the original commit.186	{187		name:        "fix-does-not-repro",188		fix:         true,189		startCommit: 905,190		expectErr:   true,191	},192	// Tests that no commits are returned when crash occurs on HEAD193	// for fix bisection.194	{195		name:         "fix-crashes-HEAD",196		fix:          true,197		startCommit:  400,198		commitLen:    0,199		expectRep:    true,200		culprit:      1000,201		oldestLatest: 905,202	},203	// Tests that more than 1 commit is returned when fix bisection is inconclusive.204	{205		name:        "fix-inconclusive",206		fix:         true,207		startCommit: 400,208		brokenStart: 500,209		brokenEnd:   600,210		commitLen:   8,211		culprit:     501,212	},213	{214		name:            "cause-same-binary",215		startCommit:     905,216		commitLen:       1,217		expectRep:       true,218		culprit:         503,219		sameBinaryStart: 502,220		sameBinaryEnd:   503,221		noopChange:      true,222	},223	{224		name:            "cause-same-binary-off-by-one",225		startCommit:     905,226		commitLen:       1,227		expectRep:       true,228		culprit:         503,229		sameBinaryStart: 400,230		sameBinaryEnd:   502,231	},232	{233		name:            "cause-same-binary-off-by-one-2",234		startCommit:     905,235		commitLen:       1,236		expectRep:       true,237		culprit:         503,238		sameBinaryStart: 503,239		sameBinaryEnd:   905,240	},241	{242		name:            "fix-same-binary",243		fix:             true,244		startCommit:     400,245		commitLen:       1,246		culprit:         503,247		sameBinaryStart: 502,248		sameBinaryEnd:   504,249		noopChange:      true,250	},251	{252		name:            "cause-same-binary-release1",253		startCommit:     905,254		commitLen:       1,255		expectRep:       true,256		culprit:         500,257		sameBinaryStart: 405,258		sameBinaryEnd:   500,259		noopChange:      true,260		isRelease:       true,261	},262	{263		name:            "cause-same-binary-release2",264		startCommit:     905,265		commitLen:       1,266		expectRep:       true,267		culprit:         501,268		sameBinaryStart: 500,269		sameBinaryEnd:   501,270		noopChange:      true,271	},272	{273		name:            "cause-same-binary-release3",274		startCommit:     905,275		commitLen:       1,276		expectRep:       true,277		culprit:         405,278		sameBinaryStart: 404,279		sameBinaryEnd:   405,280		noopChange:      true,281	},282	{283		name:            "fix-same-binary-last",284		fix:             true,285		startCommit:     400,286		commitLen:       1,287		culprit:         905,288		sameBinaryStart: 904,289		sameBinaryEnd:   905,290		noopChange:      true,291	},292	{293		name:        "fix-release",294		fix:         true,295		startCommit: 400,296		commitLen:   1,297		culprit:     900,298		isRelease:   true,299	},300	{301		name:            "cause-not-in-previous-release-issue-1527",302		startCommit:     905,303		culprit:         650,304		commitLen:       1,305		expectRep:       true,306		sameBinaryStart: 500,307		sameBinaryEnd:   650,308		noopChange:      true,309	},310}311func TestBisectionResults(t *testing.T) {312	t.Parallel()313	// Creating new repos takes majority of the test time,314	// so we reuse them across tests.315	repoCache := make(chan string, len(bisectionTests))316	t.Run("group", func(t *testing.T) {317		for _, test := range bisectionTests {318			test := test319			t.Run(test.name, func(t *testing.T) {320				t.Parallel()321				checkTest(t, test)322				repoDir := ""323				select {324				case repoDir = <-repoCache:325				default:326					repoDir = createTestRepo(t)327				}328				defer func() {329					repoCache <- repoDir330				}()331				res, err := runBisection(t, repoDir, test)332				if test.expectErr != (err != nil) {333					t.Fatalf("returned error: %v", err)334				}335				if err != nil {336					if res != nil {337						t.Fatalf("got both result and error: '%v' %+v", err, *res)338					}339					return340				}341				if len(res.Commits) != test.commitLen {342					t.Fatalf("expected %d commits got %d commits", test.commitLen, len(res.Commits))343				}344				expectedTitle := fmt.Sprint(test.culprit)345				if len(res.Commits) == 1 && expectedTitle != res.Commits[0].Title {346					t.Fatalf("expected commit '%v' got '%v'", expectedTitle, res.Commits[0].Title)347				}348				if test.expectRep != (res.Report != nil) {349					t.Fatalf("got rep: %v, want: %v", res.Report, test.expectRep)350				}351				if res.NoopChange != test.noopChange {352					t.Fatalf("got noop change: %v, want: %v", res.NoopChange, test.noopChange)353				}354				if res.IsRelease != test.isRelease {355					t.Fatalf("got release change: %v, want: %v", res.IsRelease, test.isRelease)356				}357				if test.oldestLatest != 0 && fmt.Sprint(test.oldestLatest) != res.Commit.Title ||358					test.oldestLatest == 0 && res.Commit != nil {359					t.Fatalf("expected latest/oldest: %v got '%v'",360						test.oldestLatest, res.Commit.Title)361				}362			})363		}364	})365	for {366		select {367		case dir := <-repoCache:368			os.RemoveAll(dir)369		default:370			return371		}372	}373}374func checkTest(t *testing.T, test BisectionTest) {375	if test.expectErr &&376		(test.commitLen != 0 ||377			test.expectRep ||378			test.oldestLatest != 0 ||379			test.culprit != 0) {380		t.Fatalf("expecting non-default values on error")381	}382	if test.brokenStart > test.brokenEnd {383		t.Fatalf("bad broken start/end: %v/%v",384			test.brokenStart, test.brokenEnd)385	}386	if test.sameBinaryStart > test.sameBinaryEnd {387		t.Fatalf("bad same binary start/end: %v/%v",388			test.sameBinaryStart, test.sameBinaryEnd)389	}390}391func crashErrors(num int, title string) []error {392	var errors []error393	for i := 0; i < num; i++ {394		errors = append(errors, &instance.CrashError{395			Report: &report.Report{396				Title: fmt.Sprintf("crashes at %v", title),397			},398		})399	}400	return errors401}...

crashErrors

Using AI Code Generation

1import (2type bisect struct {3}4func (b *bisect) addCrashError(err error) {5    b.crashErrors = append(b.crashErrors, err)6}7func main() {8    b.addCrashError(os.ErrPermission)9    b.addCrashError(os.ErrExist)10    b.addCrashError(os.ErrInvalid)11    b.addCrashError(os.ErrClosed)12    b.addCrashError(os.ErrNoDeadline)13    b.addCrashError(os.ErrDeadlineExceeded)14    b.addCrashError(os.ErrNotSupported)15    b.addCrashError(os.ErrTimeout)16    b.addCrashError(os.ErrNoProgress)17    fmt.Println(b.crashErrors)18}19import (20type bisect struct {21}22func (b *bisect) addCrashError(err error) {23    b.crashErrors = append(b.crashErrors, err)24}25func main() {26    b.addCrashError(os.ErrPermission)27    b.addCrashError(os.ErrExist)28    b.addCrashError(os.ErrInvalid)29    b.addCrashError(os.ErrClosed)30    b.addCrashError(os.ErrNoDeadline)31    b.addCrashError(os.ErrDeadlineExceeded)32    b.addCrashError(os.ErrNotSupported)33    b.addCrashError(os.ErrTimeout)34    b.addCrashError(os.ErrNoProgress)35    b.addCrashError(os.ErrClosed)36    fmt.Println(b.crashErrors)37}38import (39type bisect struct {40}41func (b *bisect) addCrashError(err error

crashErrors

Using AI Code Generation

1import (2func main() {3        fmt.Println("Enter the input")4        reader := bufio.NewReader(os.Stdin)5        input, _ := reader.ReadString('6        input = strings.TrimSuffix(input, "7        fmt.Println(input)8        bisect := new(Bisect)9        bisect.CrashErrors(input)10}11import (12type Bisect struct {13}14func (b *Bisect) CrashErrors(input string) {15        inputArray := strings.Split(input, " ")16        for _, value := range inputArray {17                if value == "crash" {18                        fmt.Println("crash")19                }20        }21}

crashErrors

Using AI Code Generation

1import (2func main() {3	b.CrashErrors()4	fmt.Println("Done")5}6import (7type Bisect struct {8}9func (b *Bisect) CrashErrors() {10	fmt.Println("CrashErrors")11}12import (13func TestCrashErrors(t *testing.T) {14	b.CrashErrors()15}16import (17func TestCrashErrors(t *testing.T) {18	b.CrashErrors()19}20import (21func TestCrashErrors(t *testing.T) {22	b.CrashErrors()23}24import (25func TestCrashErrors(t *testing.T) {26	b.CrashErrors()27}28import (29func TestCrashErrors(t *testing.T) {30	b.CrashErrors()31}32import (33func TestCrashErrors(t *testing.T) {34	b.CrashErrors()35}36import (37func TestCrashErrors(t *testing.T) {38	b.CrashErrors()39}40import (41func TestCrashErrors(t *testing.T) {42	b.CrashErrors()43}

crashErrors

Using AI Code Generation

1import (2func main() {3	http.HandleFunc("/", handler)4	log.Fatal(http.ListenAndServe("localhost:8000", nil))5}6func handler(w http.ResponseWriter, r *http.Request) {7	w.Header().Set("Content-Type", "image/svg+xml")8	canvas := svg.New(w)9	canvas.Start(400, 400)10	canvas.Text(100, 100, "Hello, SVG!", "fill:blue;font-size:30px")11	b = bisect{}12	b.crashErrors()13	canvas.End()14}15type bisect struct {16}17func (b bisect) crashErrors() {18	for i := 0; i < 10; i++ {19		fmt.Println("Crash " + strconv.Itoa(i))20	}21}22import (23func main() {24	http.HandleFunc("/", handler)25	log.Fatal(http.ListenAndServe("localhost:8000", nil))26}27func handler(w http.ResponseWriter, r *http.Request) {28	b = bisect{}29	b.crashErrors()30}31type bisect struct {32}33func (b bisect) crashErrors() {34	for i := 0; i < 10; i++ {35		fmt.Println("Crash " + strconv.Itoa(i))36	}37}

crashErrors

Using AI Code Generation

1import (2func main() {3	fmt.Println("Enter the number of test cases:")4	fmt.Scan(&t)5	for i := 0; i < t; i++ {6		fmt.Println("Enter the number of elements:")7		fmt.Scan(&n)8		arr := make([]int, n)9		for j := 0; j < n; j++ {10			fmt.Scan(&arr[j])11		}12		fmt.Println("Enter the number of queries:")13		fmt.Scan(&q)14		for k := 0; k < q; k++ {15			fmt.Println("Enter the number of elements to be deleted:")16			fmt.Scan(&d)17			fmt.Println("Enter the index of the element to be deleted:")18			fmt.Scan(&ind)19			arr = append(arr[:ind], arr[ind+d:]...)20			fmt.Println("The array after deletion is:")21			for l := 0; l < len(arr); l++ {22				fmt.Print(arr[l], " ")23			}24			fmt.Println()25		}26	}27}

crashErrors

Using AI Code Generation

1import (2func main() {3	bisect := bisect.NewBisect()4	for i := 0; i < 5; i++ {5		bisect.AddError()6	}7	for i := 0; i < 5; i++ {8		bisect.AddNoError()9	}10	for i := 0; i < 2; i++ {11		bisect.AddError()12	}13	for i := 0; i < 4; i++ {14		bisect.AddNoError()15	}16	for i := 0; i < 6; i++ {17		bisect.AddNoError()18	}19	for i := 0; i < 8; i++ {20		bisect.AddNoError()21	}22	for i := 0; i < 6; i++ {23		bisect.AddError()24	}25	for i := 0; i < 4; i++ {26		bisect.AddError()27	}28	for i := 0; i < 2; i++ {29		bisect.AddError()30	}31	for i := 0; i < 5; i++ {32		bisect.AddNoError()33	}34	for i := 0; i < 5; i++ {35		bisect.AddNoError()36	}37	for i := 0; i < 2; i++

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