How to use mutate method of prog Package

Best Syzkaller code snippet using prog.mutate

mutation_test.go

Source:mutation_test.go

...31			for try := 0; try < 20; try++ {32				p1.Mutate(rs, 10, nil, nil)33				data := p.Serialize()34				if !bytes.Equal(data0, data) {35					t.Fatalf("program changed after mutate\noriginal:\n%s\n\nnew:\n%s\n",36						data0, data)37				}38				data1 := p1.Serialize()39				if bytes.Equal(data, data1) {40					continue41				}42				if _, err := target.Deserialize(data1); err != nil {43					t.Fatalf("Deserialize failed after Mutate: %v\n%s", err, data1)44				}45				continue next46			}47			t.Fatalf("mutation does not change program:\n%s", data0)48		}49	})50}51func TestMutateCorpus(t *testing.T) {52	target, rs, iters := initTest(t)53	var corpus []*Prog54	for i := 0; i < 100; i++ {55		p := target.Generate(rs, 10, nil)56		corpus = append(corpus, p)57	}58	for i := 0; i < iters; i++ {59		p1 := target.Generate(rs, 10, nil)60		p1.Mutate(rs, 10, nil, corpus)61	}62}63func TestMutateTable(t *testing.T) {64	target := initTargetTest(t, "test", "64")65	tests := [][2]string{66		// Insert a call.67		{`68mutate0()69mutate2()70`, `71mutate0()72mutate1()73mutate2()74`},75		// Remove calls and update args.76		{`77r0 = mutate5(&(0x7f0000000000)="2e2f66696c653000", 0x0)78mutate0()79mutate6(r0, &(0x7f0000000000)="00", 0x1)80mutate1()81`, `82mutate0()83mutate6(0xffffffffffffffff, &(0x7f0000000000)="00", 0x1)84mutate1()85`},86		// Mutate flags.87		{`88r0 = mutate5(&(0x7f0000000000)="2e2f66696c653000", 0x0)89mutate0()90mutate6(r0, &(0x7f0000000000)="00", 0x1)91mutate1()92`, `93r0 = mutate5(&(0x7f0000000000)="2e2f66696c653000", 0xcdcdcdcdcdcdcdcd)94mutate0()95mutate6(r0, &(0x7f0000000000)="00", 0x1)96mutate1()97`},98		// Mutate data (delete byte and update size).99		{`100mutate4(&(0x7f0000000000)="11223344", 0x4)101`, `102mutate4(&(0x7f0000000000)="112244", 0x3)103`},104		// Mutate data (insert byte and update size).105		// TODO: this is not working, because Mutate constantly tends106		// update addresses and insert mmap's.107		/*108					{`109			mutate4(&(0x7f0000000000)="1122", 0x2)110			`, `111			mutate4(&(0x7f0000000000)="112200", 0x3)112			`},113		*/114		// Mutate data (change byte).115		{`116mutate4(&(0x7f0000000000)="1122", 0x2)117`, `118mutate4(&(0x7f0000000000)="1100", 0x2)119`},120		// Change filename.121		{`122mutate5(&(0x7f0000001000)="2e2f66696c653000", 0x22c0)123mutate5(&(0x7f0000001000)="2e2f66696c653000", 0x22c0)124`, `125mutate5(&(0x7f0000001000)="2e2f66696c653000", 0x22c0)126mutate5(&(0x7f0000001000)="2e2f66696c653100", 0x22c0)127`},128		// Extend an array.129		{`130mutate3(&(0x7f0000000000)=[0x1, 0x1], 0x2)131`, `132mutate3(&(0x7f0000000000)=[0x1, 0x1, 0x1], 0x3)133`},134		// Mutate size from it's natural value.135		{`136mutate7(&(0x7f0000000000)='123', 0x3)137`, `138mutate7(&(0x7f0000000000)='123', 0x2)139`},140		// Mutate proc to the special value.141		{`142mutate8(0x2)143`, `144mutate8(0xffffffffffffffff)145`},146	}147	for ti, test := range tests {148		test := test149		t.Run(fmt.Sprint(ti), func(t *testing.T) {150			t.Parallel()151			p, err := target.Deserialize([]byte(test[0]))152			if err != nil {153				t.Fatalf("failed to deserialize original program: %v", err)154			}155			goal, err := target.Deserialize([]byte(test[1]))156			if err != nil {157				t.Fatalf("failed to deserialize goal program: %v", err)158			}...

ga.go

Source:ga.go

1package xgp2import (3	"math"4	"math/rand"5	"github.com/MaxHalford/eaopt"6	"github.com/MaxHalford/xgp/op"7)8// Evaluate is required to implement eaopt.Genome.9func (prog Program) Evaluate() (float64, error) {10	// For convenience11	gp := prog.GP12	// Run the training set through the Program13	var yPred, err = prog.Predict(gp.X, gp.LossMetric.NeedsProbabilities())14	if err != nil {15		return math.Inf(1), err16	}17	// Use the Metric defined in the GP18	fitness, err := gp.LossMetric.Apply(gp.Y, yPred, gp.W)19	if err != nil {20		return math.Inf(1), err21	}22	if math.IsNaN(fitness) {23		return math.Inf(1), nil24	}25	// Apply the parsimony coefficient26	if gp.ParsimonyCoeff != 0 {27		fitness += gp.ParsimonyCoeff * float64(op.CountOps(prog.Op))28	}29	return fitness, nil30}31// Mutate is required to implement eaopt.Genome.32func (prog *Program) Mutate(rng *rand.Rand) {33	defer func() { prog.Op = prog.Op.Simplify() }()34	var (35		pHoist   = prog.GP.PHoistMutation36		pSubtree = prog.GP.PSubtreeMutation37		pPoint   = prog.GP.PPointMutation38		dice     = rng.Float64() * (pHoist + pSubtree + pPoint)39	)40	// Apply hoist mutation41	if dice < pHoist {42		prog.Op = prog.GP.HoistMutation.Apply(prog.Op, rng)43		return44	}45	// Apply subtree mutation46	if dice < pHoist+pSubtree {47		prog.Op = prog.GP.SubtreeMutation.Apply(prog.Op, rng)48		return49	}50	// Apply point mutation51	prog.Op = prog.GP.PointMutation.Apply(prog.Op, rng)52}53// Crossover is required to implement eaopt.Genome.54func (prog *Program) Crossover(prog2 eaopt.Genome, rng *rand.Rand) {55	newOp1, newOp2 := prog.GP.SubtreeCrossover.Apply(prog.Op, prog2.(*Program).Op, rng)56	prog.Op = newOp1.Simplify()57	prog2.(*Program).Op = newOp2.Simplify()58}59// Clone is required to implement eaopt.Genome.60func (prog Program) Clone() eaopt.Genome {61	return &Program{62		Op: prog.Op,63		GP: prog.GP,64	}65}66// Custom genetic algorithm model.67type gaModel struct {68	selector   eaopt.Selector69	pMutate    float6470	pCrossover float6471}72// Apply is necessary to implement eaopt.Model.73func (mod gaModel) Apply(pop *eaopt.Population) error {74	var offsprings = make(eaopt.Individuals, len(pop.Individuals))75	for i := range offsprings {76		// Select an individual77		selected, _, err := mod.selector.Apply(1, pop.Individuals, pop.RNG)78		if err != nil {79			return err80		}81		var offspring = selected[0]82		// Roll a dice and decide what to do83		var dice = pop.RNG.Float64()84		if dice < mod.pMutate {85			// Mutation86			offspring.Mutate(pop.RNG)87		} else if dice < (mod.pMutate + mod.pCrossover) {88			// Crossover89			selected, _, err := mod.selector.Apply(1, pop.Individuals, pop.RNG)90			if err != nil {91				return err92			}93			offspring.Crossover(selected[0], pop.RNG)94		}95		// Insert the offsprings into the new population96		offsprings[i] = offspring97	}98	// Replace the population's individuals with the offsprings99	copy(pop.Individuals, offsprings)100	return nil101}102// Validate is necessary to implement eaopt.Model.103func (mod gaModel) Validate() error {104	return nil105}...

mutate

Using AI Code Generation

1import "fmt"2func main() {3  p.mutate()4  fmt.Println(p)5}6import "fmt"7func main() {8  p.mutate()9  fmt.Println(p)10}11import "fmt"12func main() {13  p.mutate()14  fmt.Println(p)15}16import "fmt"17func main() {18  p.mutate()19  fmt.Println(p)20}21import "fmt"22func main() {23  p.mutate()24  fmt.Println(p)25}26import "fmt"27func main() {28  p.mutate()29  fmt.Println(p)30}31import "fmt"32func main() {33  p.mutate()34  fmt.Println(p)35}36import "fmt"37func main() {38  p.mutate()39  fmt.Println(p)40}41import "fmt"42func main() {43  p.mutate()44  fmt.Println(p)45}46import "fmt"47func main() {48  p.mutate()49  fmt.Println(p)50}51import "fmt"52func main() {53  p.mutate()54  fmt.Println(p)55}

mutate

Using AI Code Generation

1import "fmt"2type prog struct {3}4func (p prog) mutate() {5}6func (p prog) display() {7    fmt.Println(p.lang, p.year)8}9func main() {10    p1 := prog{11    }12    p1.mutate()13    p1.display()14}15import "fmt"16type prog struct {17}18func (p *prog) mutate() {19}20func (p prog) display() {21    fmt.Println(p.lang, p.year)22}23func main() {24    p1 := prog{25    }26    p1.mutate()27    p1.display()28}29import "fmt"30type prog struct {31}32func (p *prog) mutate() {33}34func (p prog) display() {35    fmt.Println(p.lang, p.year)36}37func main() {38    p1 := prog{39    }40    p1.mutate()41    p1.display()42}

mutate

Using AI Code Generation

1import (2func main() {3	prog := new(Prog)4	prog.mutate()5	fmt.Println(prog)6}7import (8func main() {9	prog := &Prog{}10	prog.mutate()11	fmt.Println(prog)12}13import (14func main() {15	prog := &Prog{}16	prog.mutate()17	fmt.Println(prog)18}19import (20func main() {21	prog := &Prog{}22	prog.mutate()23	fmt.Println(prog)24}25import (26func main() {27	prog := &Prog{}28	prog.mutate()29	fmt.Println(prog)30}31import (32func main() {33	prog := &Prog{}34	prog.mutate()35	fmt.Println(prog)36}37import (38func main() {39	prog := &Prog{}40	prog.mutate()41	fmt.Println(prog)42}43import (44func main() {45	prog := &Prog{}46	prog.mutate()47	fmt.Println(prog)48}49import (50func main() {51	prog := &Prog{}52	prog.mutate()53	fmt.Println(prog)54}55import (56func main() {57	prog := &Prog{}58	prog.mutate()59	fmt.Println(prog)60}61import (62func main() {63	prog := &Prog{}64	prog.mutate()

mutate

Using AI Code Generation

1import (2func main() {3	p.Mutate()4	fmt.Println(p)5}6type Prog struct {7}8func (p *Prog) Mutate() {9}10    /usr/local/go/src/pkg/prog (from $GOROOT)11    /home/abc/go/src/prog (from $GOPATH)12type Prog struct {13}14func (p *Prog) Mutate() {15}16func main() {17    p.Mutate()18    fmt.Println(p)19}

mutate

Using AI Code Generation

1import "fmt"2func main() {3    p := prog{a: 10}4    fmt.Println("Before mutation", p.a)5    p.mutate()6    fmt.Println("After mutation", p.a)7}

mutate

Using AI Code Generation

1import (2func main() {3    fmt.Println("Program Details")4    fmt.Println(prog1)5    fmt.Println("Program Details after mutate")6    prog1.mutate()7    fmt.Println(prog1)8}9{Go 2009 1.17}10{Go 2021 1.17}

mutate

Using AI Code Generation

1import "fmt"2func main() {3 p.mutate()4 fmt.Println(p)5}6{0 0}

mutate

Using AI Code Generation

1import (2func main() {3	prog := genetic.NewProg(100)4	prog.Mutate(10)5	fmt.Println(prog)6}7import (8type Prog struct {9}10func NewProg(size int) *Prog {11	rand.Seed(time.Now().UnixNano())12	bitString := make([]bool, size)13	for i := 0; i < size; i++ {14		bitString[i] = rand.Intn(2) == 115	}16	return &Prog{bitString}17}18func (p *Prog) Mutate(n int) {19	for i := 0; i < n; i++ {20		p.BitString[rand.Intn(len(p.BitString))] = rand.Intn(2) == 121	}22}23func (p *Prog) String() string {24	for _, b := range p.BitString {25		if b {26		} else {27		}28	}29}

mutate

Using AI Code Generation

1import (2func main() {3	fmt.Println("Before swap, a =", a, " b =", b)4	swap(&a, &b)5	fmt.Println("After swap, a =", a, " b =", b)6}7func swap(a, b *int) {8	if cmp.Equal(a, b) {9	}10}

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.