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How to use TestMinimize method of prog Package

Best Syzkaller code snippet using prog.TestMinimize

minimization_test.go

Source:minimization_test.go

...4import (5	"math/rand"6	"testing"7)8func TestMinimize(t *testing.T) {9	tests := []struct {10		os              string11		arch            string12		orig            string13		callIndex       int14		pred            func(*Prog, int) bool15		result          string16		resultCallIndex int17	}{18		// Predicate always returns false, so must get the same program.19		{20			"linux", "amd64",21			"mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x3, 0x32, 0xffffffffffffffff, 0x0)\n" +22				"sched_yield()\n" +23				"pipe2(&(0x7f0000000000), 0x0)\n",24			2,25			func(p *Prog, callIndex int) bool {26				if len(p.Calls) == 0 {27					t.Fatalf("got an empty program")28				}29				if p.Calls[len(p.Calls)-1].Meta.Name != "pipe2" {30					t.Fatalf("last call is removed")31				}32				return false33			},34			"mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x3, 0x32, 0xffffffffffffffff, 0x0)\n" +35				"sched_yield()\n" +36				"pipe2(&(0x7f0000000000), 0x0)\n",37			2,38		},39		// Remove a call.40		{41			"linux", "amd64",42			"mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x3, 0x32, 0xffffffffffffffff, 0x0)\n" +43				"sched_yield()\n" +44				"pipe2(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0)\n",45			2,46			func(p *Prog, callIndex int) bool {47				// Aim at removal of sched_yield.48				return len(p.Calls) == 2 && p.Calls[0].Meta.Name == "mmap" && p.Calls[1].Meta.Name == "pipe2"49			},50			"mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x0, 0x10, 0xffffffffffffffff, 0x0)\n" +51				"pipe2(0x0, 0x0)\n",52			1,53		},54		// Remove two dependent calls.55		{56			"linux", "amd64",57			"mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x3, 0x32, 0xffffffffffffffff, 0x0)\n" +58				"pipe2(&(0x7f0000000000)={0x0, 0x0}, 0x0)\n" +59				"sched_yield()\n",60			2,61			func(p *Prog, callIndex int) bool {62				// Aim at removal of pipe2 and then mmap.63				if len(p.Calls) == 2 && p.Calls[0].Meta.Name == "mmap" && p.Calls[1].Meta.Name == "sched_yield" {64					return true65				}66				if len(p.Calls) == 1 && p.Calls[0].Meta.Name == "sched_yield" {67					return true68				}69				return false70			},71			"sched_yield()\n",72			0,73		},74		// Remove a call and replace results.75		{76			"linux", "amd64",77			"mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x3, 0x32, 0xffffffffffffffff, 0x0)\n" +78				"pipe2(&(0x7f0000000000)={<r0=>0x0, 0x0}, 0x0)\n" +79				"write(r0, &(0x7f0000000000)=\"1155\", 0x2)\n" +80				"sched_yield()\n",81			3,82			func(p *Prog, callIndex int) bool {83				return p.String() == "mmap-write-sched_yield"84			},85			"mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x0, 0x10, 0xffffffffffffffff, 0x0)\n" +86				"write(0xffffffffffffffff, 0x0, 0x0)\n" +87				"sched_yield()\n",88			2,89		},90		// Remove a call and replace results.91		{92			"linux", "amd64",93			"mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x3, 0x32, 0xffffffffffffffff, 0x0)\n" +94				"r0=open(&(0x7f0000000000)=\"1155\", 0x0, 0x0)\n" +95				"write(r0, &(0x7f0000000000)=\"1155\", 0x2)\n" +96				"sched_yield()\n",97			-1,98			func(p *Prog, callIndex int) bool {99				return p.String() == "mmap-write-sched_yield"100			},101			"mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x0, 0x10, 0xffffffffffffffff, 0x0)\n" +102				"write(0xffffffffffffffff, 0x0, 0x0)\n" +103				"sched_yield()\n",104			-1,105		},106		// Minimize pointer.107		{108			"linux", "amd64",109			"pipe2(&(0x7f0000001000)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0)\n",110			-1,111			func(p *Prog, callIndex int) bool {112				return len(p.Calls) == 1 && p.Calls[0].Meta.Name == "pipe2"113			},114			"pipe2(0x0, 0x0)\n",115			-1,116		},117		// Minimize pointee.118		{119			"linux", "amd64",120			"pipe2(&(0x7f0000001000)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0)\n",121			-1,122			func(p *Prog, callIndex int) bool {123				return len(p.Calls) == 1 && p.Calls[0].Meta.Name == "pipe2" && p.Calls[0].Args[0].(*PointerArg).Address != 0124			},125			"pipe2(&(0x7f0000001000), 0x0)\n",126			-1,127		},128		// Make sure we don't hang when minimizing resources.129		{130			"test", "64",131			"r0 = test$res0()\n" +132				"test$res1(r0)\n",133			-1,134			func(p *Prog, callIndex int) bool {135				return false136			},137			"r0 = test$res0()\n" +138				"test$res1(r0)\n",139			-1,140		},141		{142			"test", "64",143			"minimize$0(0x1, 0x1)\n",144			-1,145			func(p *Prog, callIndex int) bool { return len(p.Calls) == 1 },146			"minimize$0(0x1, 0xffffffffffffffff)\n",147			-1,148		},149	}150	t.Parallel()151	for ti, test := range tests {152		target, err := GetTarget(test.os, test.arch)153		if err != nil {154			t.Fatal(err)155		}156		p, err := target.Deserialize([]byte(test.orig), Strict)157		if err != nil {158			t.Fatalf("failed to deserialize original program #%v: %v", ti, err)159		}160		p1, ci := Minimize(p, test.callIndex, false, test.pred)161		res := p1.Serialize()162		if string(res) != test.result {163			t.Fatalf("minimization produced wrong result #%v\norig:\n%v\nexpect:\n%v\ngot:\n%v\n",164				ti, test.orig, test.result, string(res))165		}166		if ci != test.resultCallIndex {167			t.Fatalf("minimization broke call index #%v: got %v, want %v",168				ti, ci, test.resultCallIndex)169		}170	}171}172func TestMinimizeRandom(t *testing.T) {173	target, rs, iters := initTest(t)174	iters /= 10 // Long test.175	ct := target.DefaultChoiceTable()176	r := rand.New(rs)177	for i := 0; i < iters; i++ {178		for _, crash := range []bool{false, true} {179			p := target.Generate(rs, 5, ct)180			copyP := p.Clone()181			minP, _ := Minimize(p, len(p.Calls)-1, crash, func(p1 *Prog, callIndex int) bool {182				if r.Intn(2) == 0 {183					return false184				}185				copyP = p1.Clone()186				return true187			})188			got := string(minP.Serialize())189			want := string(copyP.Serialize())190			if got != want {191				t.Fatalf("program:\n%s\ngot:\n%v\nwant:\n%s", string(p.Serialize()), got, want)192			}193		}194	}195}196func TestMinimizeCallIndex(t *testing.T) {197	target, rs, iters := initTest(t)198	ct := target.DefaultChoiceTable()199	r := rand.New(rs)200	for i := 0; i < iters; i++ {201		p := target.Generate(rs, 5, ct)202		ci := r.Intn(len(p.Calls))203		p1, ci1 := Minimize(p, ci, r.Intn(2) == 0, func(p1 *Prog, callIndex int) bool {204			return r.Intn(2) == 0205		})206		if ci1 < 0 || ci1 >= len(p1.Calls) || p.Calls[ci].Meta.Name != p1.Calls[ci1].Meta.Name {207			t.Fatalf("bad call index after minimization")208		}209	}210}...

TestMinimize

Using AI Code Generation

1import (2func main() {3    rand.Seed(time.Now().UTC().UnixNano())4    canvas := svg.New(os.Stdout)5    canvas.Start(width, height)6    canvas.Rect(0, 0, width, height)7    canvas.Gstyle("fill:none;stroke:black;stroke-width:1")8    canvas.Circle(300, 300, 200)9    canvas.Circle(300, 300, 100)10    canvas.Circle(300, 300, 50)11    canvas.Gend()12    canvas.Circle(300, 300, 10)13    canvas.Gstyle("fill:none;stroke:red;stroke-width:2")14    canvas.Circle(300, 300, 200)15    canvas.Circle(300, 300, 100)16    canvas.Circle(300, 300, 50)17    canvas.Gend()18    p := NewProg()19    p.Add(300, 300)20    for i := 0; i < 1000; i++ {21        p.Add(rand.Intn(600), rand.Intn(600))22    }23    p.Minimize()24    canvas.Gstyle("fill:none;stroke:blue;stroke-width:2")25    for i := 0; i < p.Npoints; i++ {26        x, y := p.Get(i)27        canvas.Circle(x, y, 1)28    }29    canvas.Gend()30    canvas.End()31}32import (33func main() {34    rand.Seed(time.Now().UTC().UnixNano())35    canvas := svg.New(os.Stdout)36    canvas.Start(width, height)37    canvas.Rect(0, 0, width, height)38    canvas.Gstyle("fill:none;stroke:black;stroke-width:1")39    canvas.Circle(300, 300, 200)40    canvas.Circle(300, 300, 100)41    canvas.Circle(300, 300, 50)

TestMinimize

Using AI Code Generation

1import (2func main() {3    p := parse.NewParser()4    prog, err := p.Parse("1 + 2 + 3 + 4 + 5")5    if err != nil {6        panic(err)7    }8    fmt.Println(prog)9    fmt.Println(prog.TestMinimize())10}11import (12func main() {13    p := parse.NewParser()14    prog, err := p.Parse("1 + 2 + 3 + 4 + 5")15    if err != nil {16        panic(err)17    }18    fmt.Println(prog)19    fmt.Println(prog.TestMinimize())20}21import (22func main() {23    p := parse.NewParser()24    prog, err := p.Parse("1 + 2 + 3 + 4 + 5")25    if err != nil {26        panic(err)27    }28    fmt.Println(prog)29    fmt.Println(prog.TestMinimize())30}31import (

TestMinimize

Using AI Code Generation

1import (2func main() {3    m := minify.New()4    m.AddFunc("text/javascript", js.Minify)5    f, _ := os.Open("1.js")6    b, _ := ioutil.ReadAll(f)7    minified, _ := m.Bytes("text/javascript", b)8    fmt.Println(string(minified))9}10    /usr/local/go/src/github.com/tdewolff/minify/js (from $GOROOT)11    /home/rohit/go/src/github.com/tdewolff/minify/js (from $GOPATH)

TestMinimize

Using AI Code Generation

1import "fmt"2import "gopkg.in/mgo.v2"3import "gopkg.in/mgo.v2/bson"4import "time"5import "math"6import "math/rand"7import "os"8import "strconv"9import "strings"10import "bufio"11type User struct {12}13type Data struct {14}15type Data2 struct {16}17type Data3 struct {18}19type Data4 struct {20}21type Data5 struct {22}23type Data6 struct {24}25type Data7 struct {26}27type Data8 struct {28}29type Data9 struct {30}31type Data10 struct {32}33type Data11 struct {34}35type Data12 struct {36}37type Data13 struct {38}39type Data14 struct {40}41type Data15 struct {42}43type Data16 struct {44}45type Data17 struct {

TestMinimize

Using AI Code Generation

1import (2func main() {3	f, err := os.Open("1.go")4	if err != nil {5		fmt.Println(err)6	}7	p := prog.New()8	width, _, err := pty.Getsize(os.Stdout)9	if err != nil {10	}11	p.SetWidth(width)12	_, err = io.Copy(p, f)13	if err != nil {14		fmt.Println(err)15	}16	p.Minimize()17	pretty.Println(p)18}19&prog.Prog{Width:80, Lines:[]prog.Line{20    prog.Line{Text:"package main"},21    prog.Line{Text:"import (", Children:[]prog.Line{22        prog.Line{Text:"\"fmt\""},23        prog.Line{Text:"\"github.com/kr/pretty\""},24        prog.Line{Text:"\"github.com/kr/pty\""},25        prog.Line{Text:"\"github.com/kr/text\""},26        prog.Line{Text:"\"github.com/kr/text/prog\""},27        prog.Line{Text:"\"io\""},28        prog.Line{Text:"\"os\""},29    }},30    prog.Line{Text:")"},31    prog.Line{Text:"func main() {"},32        prog.Line{Text:"f, err := os.Open(\"1.go\")"},33        prog.Line{Text:"if err != nil {"},34        prog.Line{Text:"fmt.Println(err)"},35        prog.Line{Text:"return"},36        prog.Line{Text:"}"},37    }},38        prog.Line{Text:"p := prog.New()"},39    }},40        prog.Line{Text

TestMinimize

Using AI Code Generation

1import (2type Point struct {3}4func (a ByY) Len() int           { return len(a) }5func (a ByY) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }6func (a ByY) Less(i, j int) bool { return a[i].Y < a[j].Y }7func (p Point) DistanceTo(q Point) float64 {8	return math.Sqrt(math.Pow(p.X-q.X, 2) + math.Pow(p.Y-q.Y, 2))9}10type Prog struct {11}12func (p Prog) Minimize() []Point {13	sort.Sort(ByY(p.points))14	return p.closestPair(0, len(p.points)-1)15}16func (p Prog) closestPair(start, end int) []Point {17	if start == end {18		return []Point{p.points[start]}19	} else if start+1 == end {20		return []Point{p.points[start], p.points[end]}21	} else {22		mid := (start + end) / 223		left := p.closestPair(start, mid)24		right := p.closestPair(mid+1, end)25		if p.distance(left) < p.distance(right) {26		} else {27		}28	}29}30func (p Prog) distance(points []Point) float64 {31	for i := 0; i < len(points)-1; i++ {32		total += points[i].DistanceTo(points[i+1])33	}34}35func main() {36	p := Prog{}37	p.points = []Point{38		Point{X: 1.0, Y: 1.0},39		Point{X: 2.0, Y: 2.0},40		Point{X: 3.0, Y: 3.0},41		Point{X: 4.0, Y: 4.0},42		Point{X: 5.0, Y: 5.0},43	}

TestMinimize

Using AI Code Generation

1import "fmt"2func main() {3 p := new(prog)4 p.TestMinimize()5}6type prog struct {

TestMinimize

Using AI Code Generation

1func main() {2    prog := new(prog)3    x := new(variable)4    y := new(variable)5    c1 := new(constant)6    c2 := new(constant)7    e1 := new(expression)8    e2 := new(expression)9    s := new(statement)10    prog.statements = append(prog.statements, s)11    prog.TestMinimize()12}13func main() {14    prog := new(prog)15    x := new(variable)16    y := new(variable)17    c1 := new(constant)18    c2 := new(constant)19    e1 := new(expression)20    e2 := new(expression)

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