How to use runBisection method of bisect Package

Best Syzkaller code snippet using bisect.runBisection

bisect_test.go

Source:bisect_test.go

...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 {...

runBisection

Using AI Code Generation

1import (2func main() {3    fmt.Println("Please enter the coefficients of the equation in order from highest degree to lowest degree")4    fmt.Scan(&a, &b, &c, &d, &e, &f, &g, &h, &i, &j, &k, &l, &m, &n, &o, &p, &q, &r, &s, &t, &u, &v, &w, &x, &y, &z)5    var coefficients = []float64{a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z}6    var equation = new(bisect)7    equation.setCoefficients(coefficients)8    fmt.Println("Please enter the initial interval")9    var interval = make([]float64, 2)10    fmt.Scan(&interval[0], &interval[1])11    fmt.Println("Please enter the maximum number of iterations")12    fmt.Scan(&maxIterations)13    fmt.Println("Please enter the target accuracy")14    fmt.Scan(&targetAccuracy)15    var result = equation.runBisection(interval, maxIterations, targetAccuracy)16    fmt.Println(result)17}18import (19func main() {20    fmt.Println("Please enter the coefficients of the equation in order from highest degree to lowest degree")21    fmt.Scan(&a, &b, &c, &d, &e, &f, &g, &h, &i, &j, &k, &l

runBisection

Using AI Code Generation

1import (2type Bisect struct {3}4func (b *Bisect) runBisection() float64 {5    if b.a == 0 {6    }7    if b.a != 0 {8        return (-b.b + math.Sqrt(b.b*b.b-4*b.a*b.c)) / (2 * b.a)9    }10}11func main() {12    fmt.Println("Enter the coefficients of the quadratic equation:")13    fmt.Scan(&b.a, &b.b, &b.c)14    b.d = b.runBisection()15    fmt.Println("The root of the equation is: ", b.d)16}17import (18type Bisect struct {19}20func (b *Bisect) runBisection() float64 {21    if b.a == 0 {22    }23    if b.a != 0 {24        return (-b.b + math.Sqrt(b.b*b.b-4*b.a*b.c)) / (2 * b.a)25    }26}27func main() {28    fmt.Println("Enter the coefficients of the quadratic equation:")29    fmt.Scan(&b.a, &b.b, &b.c)30    b.d = b.runBisection()31    fmt.Println("The root of the equation is: ", b.d)32}33import (34type Bisect struct {35}36func (b *Bisect) runBisection() float64 {37    if b.a == 0 {38    }39    if b.a != 0 {40        return (-b.b + math.Sqrt(b.b*b.b-4*b.a*b.c)) / (2 * b.a)41    }42}43func main() {

runBisection

Using AI Code Generation

1import (2func main() {3    fmt.Println("Hello, playground")4    f := func(x float64) float64 { return x*x - 2 }5    bisect := Bisection{f, 1, 2, 0.000000001}6    bisect.runBisection()7    fmt.Println(bisect.root)8}9import (10func main() {11    fmt.Println("Hello, playground")12    f := func(x float64) float64 { return x*x - 2 }13    bisect := Bisection{f, 1, 2, 0.000000001}14    bisect.runBisection()15    fmt.Println(bisect.root)16}17import (18func main() {19    fmt.Println("Hello, playground")20    f := func(x float64) float64 { return x*x - 2 }21    bisect := Bisection{f, 1, 2, 0.000000001}22    bisect.runBisection()23    fmt.Println(bisect.root)24}25import (26func main() {27    fmt.Println("Hello, playground")28    f := func(x float64) float64 { return x*x - 2 }29    bisect := Bisection{f, 1, 2, 0.000000001}30    bisect.runBisection()31    fmt.Println(bisect.root)32}33import (34func main() {35    fmt.Println("Hello, playground")36    f := func(x float64) float64 { return x*x - 2 }37    bisect := Bisection{f, 1, 2, 0.000000001}38    bisect.runBisection()

runBisection

Using AI Code Generation

1import (2func main() {3	fmt.Println("Enter the lower limit of the interval: ")4	fmt.Scanf("%f", &a)5	fmt.Println("Enter the upper limit of the interval: ")6	fmt.Scanf("%f", &b)7	fmt.Println("The root of the given function is: ", bisect(a, b))8}9func f(x float64) float64 {10	return math.Pow(x, 3) - 2*x - 511}12func bisect(a, b float64) float64 {13	if f(a)*f(b) >= 0 {14		fmt.Println("You have not assumed right a and b")15	}16	for (b-a) >= 0.01 {17		c = (a + b) / 218		if f(c) == 0 {19		} else if f(c)*f(a) < 0 {20		} else {21		}22	}23}

runBisection

Using AI Code Generation

1import (2func main() {3	b := bisect{f: f, a: 0, b: 1, tol: 1e-6, maxIter: 100}4	b.runBisection()5	fmt.Println("root is", b.root)6	fmt.Println("root is", b.err)7}8import (9func main() {10	b := bisect{f: f, a: 0, b: 1, tol: 1e-6, maxIter: 100}11	b.runBisection()12	fmt.Println("root is", b.root)13	fmt.Println("root is", b.err)14}15import (16func main() {17	b := bisect{f: f, a: 0, b: 1, tol: 1e-6, maxIter: 100}18	b.runBisection()19	fmt.Println("root is", b.root)20	fmt.Println("root is", b.err)21}22import (23func main() {24	b := bisect{f: f, a: 0, b: 1, tol: 1e-6, maxIter: 100}25	b.runBisection()26	fmt.Println("root is", b.root)27	fmt.Println("root is", b.err)28}29import (30func main() {31	b := bisect{f: f, a: 0, b: 1, tol: 1e-6, maxIter: 100}32	b.runBisection()33	fmt.Println("root is", b.root)34	fmt.Println("root is", b.err)35}36import (37func main() {38	b := bisect{f:

runBisection

Using AI Code Generation

1import java.util.Scanner;2import java.util.ArrayList;3import java.util.Arrays;4import java.util.List;5import java.util.Collections;6import java.util.Comparator;7public class runBisection {8    public static void main(String[] args) {9        Scanner input = new Scanner(System.in);10        System.out.println("Enter the number of elements in the array: ");11        int n = input.nextInt();12        int[] arr = new int[n];13        System.out.println("Enter the elements of the array: ");14        for (int i = 0; i < n; i++) {15            arr[i] = input.nextInt();16        }17        System.out.println("Enter the element to be searched: ");18        int key = input.nextInt();19        bisect b = new bisect(arr, key);20        int index = b.runBisection();21        if (index == -1) {22            System.out.println("Element not found");23        } else {24            System.out.println("Element found at index: " + index);25        }26    }27}

runBisection

Using AI Code Generation

1import (2func main() {3    fmt.Printf("Enter the interval and the precision: ")4    fmt.Scanf("%f %f %f", &a, &b, &eps)5    bisect := Bisection{a, b, eps}6    fmt.Println("The root of the function is: ", bisect.runBisection())7}8type Bisection struct {9}10func (b Bisection) f(x float64) float64 {11    return math.Pow(x, 3) - 2*x - 512}13func (b Bisection) runBisection() float64 {14    fa = b.f(b.a)15    fb = b.f(b.b)16    if fa*fb > 0 {17        fmt.Println("The function has the same sign at the given interval")18    }19    for math.Abs(b.b-b.a) > b.eps {20        c = (b.a + b.b) / 221        fc = b.f(c)22        if fc == 0 {23        }24        if fa*fc < 0 {25        } else {26        }27    }28}

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