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

Copied to Clipboard!

How to use bisect method of bisect Package

Best Syzkaller code snippet using bisect.bisect

commits.go

Source:commits.go

...20var (21	pipeSetCache = make(map[pipeSetCacheKey][][]*graph.Pipe)22	mutex        deadlock.Mutex23)24type bisectBounds struct {25	newIndex int26	oldIndex int27}28func GetCommitListDisplayStrings(29	commits []*models.Commit,30	fullDescription bool,31	cherryPickedCommitShaSet *set.Set[string],32	diffName string,33	timeFormat string,34	parseEmoji bool,35	selectedCommitSha string,36	startIdx int,37	length int,38	showGraph bool,39	bisectInfo *git_commands.BisectInfo,40) [][]string {41	mutex.Lock()42	defer mutex.Unlock()43	if len(commits) == 0 {44		return nil45	}46	if startIdx > len(commits) {47		return nil48	}49	end := utils.Min(startIdx+length, len(commits))50	// this is where my non-TODO commits begin51	rebaseOffset := utils.Min(indexOfFirstNonTODOCommit(commits), end)52	filteredCommits := commits[startIdx:end]53	bisectBounds := getbisectBounds(commits, bisectInfo)54	// function expects to be passed the index of the commit in terms of the `commits` slice55	var getGraphLine func(int) string56	if showGraph {57		// this is where the graph begins (may be beyond the TODO commits depending on startIdx,58		// but we'll never include TODO commits as part of the graph because it'll be messy)59		graphOffset := utils.Max(startIdx, rebaseOffset)60		pipeSets := loadPipesets(commits[rebaseOffset:])61		pipeSetOffset := utils.Max(startIdx-rebaseOffset, 0)62		graphPipeSets := pipeSets[pipeSetOffset:utils.Max(end-rebaseOffset, 0)]63		graphCommits := commits[graphOffset:end]64		graphLines := graph.RenderAux(65			graphPipeSets,66			graphCommits,67			selectedCommitSha,68		)69		getGraphLine = func(idx int) string {70			if idx >= graphOffset {71				return graphLines[idx-graphOffset]72			} else {73				return ""74			}75		}76	} else {77		getGraphLine = func(idx int) string { return "" }78	}79	lines := make([][]string, 0, len(filteredCommits))80	var bisectStatus BisectStatus81	for i, commit := range filteredCommits {82		unfilteredIdx := i + startIdx83		bisectStatus = getBisectStatus(unfilteredIdx, commit.Sha, bisectInfo, bisectBounds)84		lines = append(lines, displayCommit(85			commit,86			cherryPickedCommitShaSet,87			diffName,88			timeFormat,89			parseEmoji,90			getGraphLine(unfilteredIdx),91			fullDescription,92			bisectStatus,93			bisectInfo,94		))95	}96	return lines97}98func getbisectBounds(commits []*models.Commit, bisectInfo *git_commands.BisectInfo) *bisectBounds {99	if !bisectInfo.Bisecting() {100		return nil101	}102	bisectBounds := &bisectBounds{}103	for i, commit := range commits {104		if commit.Sha == bisectInfo.GetNewSha() {105			bisectBounds.newIndex = i106		}107		status, ok := bisectInfo.Status(commit.Sha)108		if ok && status == git_commands.BisectStatusOld {109			bisectBounds.oldIndex = i110			return bisectBounds111		}112	}113	// shouldn't land here114	return nil115}116// precondition: slice is not empty117func indexOfFirstNonTODOCommit(commits []*models.Commit) int {118	for i, commit := range commits {119		if !commit.IsTODO() {120			return i121		}122	}123	// shouldn't land here124	return 0125}126func loadPipesets(commits []*models.Commit) [][]*graph.Pipe {127	// given that our cache key is a commit sha and a commit count, it's very important that we don't actually try to render pipes128	// when dealing with things like filtered commits.129	cacheKey := pipeSetCacheKey{130		commitSha:   commits[0].Sha,131		commitCount: len(commits),132	}133	pipeSets, ok := pipeSetCache[cacheKey]134	if !ok {135		// pipe sets are unique to a commit head. and a commit count. Sometimes we haven't loaded everything for that.136		// so let's just cache it based on that.137		getStyle := func(commit *models.Commit) style.TextStyle {138			return authors.AuthorStyle(commit.AuthorName)139		}140		pipeSets = graph.GetPipeSets(commits, getStyle)141		pipeSetCache[cacheKey] = pipeSets142	}143	return pipeSets144}145// similar to the git_commands.BisectStatus but more gui-focused146type BisectStatus int147const (148	BisectStatusNone BisectStatus = iota149	BisectStatusOld150	BisectStatusNew151	BisectStatusSkipped152	// adding candidate here which isn't present in the commands package because153	// we need to actually go through the commits to get this info154	BisectStatusCandidate155	// also adding this156	BisectStatusCurrent157)158func getBisectStatus(index int, commitSha string, bisectInfo *git_commands.BisectInfo, bisectBounds *bisectBounds) BisectStatus {159	if !bisectInfo.Started() {160		return BisectStatusNone161	}162	if bisectInfo.GetCurrentSha() == commitSha {163		return BisectStatusCurrent164	}165	status, ok := bisectInfo.Status(commitSha)166	if ok {167		switch status {168		case git_commands.BisectStatusNew:169			return BisectStatusNew170		case git_commands.BisectStatusOld:171			return BisectStatusOld172		case git_commands.BisectStatusSkipped:173			return BisectStatusSkipped174		}175	} else {176		if bisectBounds != nil && index >= bisectBounds.newIndex && index <= bisectBounds.oldIndex {177			return BisectStatusCandidate178		} else {179			return BisectStatusNone180		}181	}182	// should never land here183	return BisectStatusNone184}185func getBisectStatusText(bisectStatus BisectStatus, bisectInfo *git_commands.BisectInfo) string {186	if bisectStatus == BisectStatusNone {187		return ""188	}189	style := getBisectStatusColor(bisectStatus)190	switch bisectStatus {191	case BisectStatusNew:192		return style.Sprintf("<-- " + bisectInfo.NewTerm())193	case BisectStatusOld:194		return style.Sprintf("<-- " + bisectInfo.OldTerm())195	case BisectStatusCurrent:196		// TODO: i18n197		return style.Sprintf("<-- current")198	case BisectStatusSkipped:199		return style.Sprintf("<-- skipped")200	case BisectStatusCandidate:201		return style.Sprintf("?")202	case BisectStatusNone:203		return ""204	}205	return ""206}207func displayCommit(208	commit *models.Commit,209	cherryPickedCommitShaSet *set.Set[string],210	diffName string,211	timeFormat string,212	parseEmoji bool,213	graphLine string,214	fullDescription bool,215	bisectStatus BisectStatus,216	bisectInfo *git_commands.BisectInfo,217) []string {218	shaColor := getShaColor(commit, diffName, cherryPickedCommitShaSet, bisectStatus, bisectInfo)219	bisectString := getBisectStatusText(bisectStatus, bisectInfo)220	actionString := ""221	if commit.Action != "" {222		actionString = actionColorMap(commit.Action).Sprint(commit.Action) + " "223	}224	tagString := ""225	if fullDescription {226		if commit.ExtraInfo != "" {227			tagString = style.FgMagenta.SetBold().Sprint(commit.ExtraInfo) + " "228		}229	} else {230		if len(commit.Tags) > 0 {231			tagString = theme.DiffTerminalColor.SetBold().Sprint(strings.Join(commit.Tags, " ")) + " "232		}233	}234	name := commit.Name235	if parseEmoji {236		name = emoji.Sprint(name)237	}238	authorFunc := authors.ShortAuthor239	if fullDescription {240		authorFunc = authors.LongAuthor241	}242	cols := make([]string, 0, 7)243	if icons.IsIconEnabled() {244		cols = append(cols, shaColor.Sprint(icons.IconForCommit(commit)))245	}246	cols = append(cols, shaColor.Sprint(commit.ShortSha()))247	cols = append(cols, bisectString)248	if fullDescription {249		cols = append(cols, style.FgBlue.Sprint(utils.UnixToDate(commit.UnixTimestamp, timeFormat)))250	}251	cols = append(252		cols,253		actionString,254		authorFunc(commit.AuthorName),255		graphLine+tagString+theme.DefaultTextColor.Sprint(name),256	)257	return cols258}259func getBisectStatusColor(status BisectStatus) style.TextStyle {260	switch status {261	case BisectStatusNone:262		return style.FgBlack263	case BisectStatusNew:264		return style.FgRed265	case BisectStatusOld:266		return style.FgGreen267	case BisectStatusSkipped:268		return style.FgYellow269	case BisectStatusCurrent:270		return style.FgMagenta271	case BisectStatusCandidate:272		return style.FgBlue273	}274	// shouldn't land here275	return style.FgWhite276}277func getShaColor(278	commit *models.Commit,279	diffName string,280	cherryPickedCommitShaSet *set.Set[string],281	bisectStatus BisectStatus,282	bisectInfo *git_commands.BisectInfo,283) style.TextStyle {284	if bisectInfo.Started() {285		return getBisectStatusColor(bisectStatus)286	}287	diffed := commit.Sha == diffName288	shaColor := theme.DefaultTextColor289	switch commit.Status {290	case "unpushed":291		shaColor = style.FgRed292	case "pushed":293		shaColor = style.FgYellow294	case "merged":295		shaColor = style.FgGreen296	case "rebasing":297		shaColor = style.FgBlue298	case "reflog":299		shaColor = style.FgBlue...

bisect_controller.go

Source:bisect_controller.go

...41		return self.openStartBisectMenu(info, commit)42	}43}44func (self *BisectController) openMidBisectMenu(info *git_commands.BisectInfo, commit *models.Commit) error {45	// if there is not yet a 'current' bisect commit, or if we have46	// selected the current commit, we need to jump to the next 'current' commit47	// after we perform a bisect action. The reason we don't unconditionally jump48	// is that sometimes the user will want to go and mark a few commits as skipped49	// in a row and they wouldn't want to be jumped back to the current bisect50	// commit each time.51	// Originally we were allowing the user to, from the bisect menu, select whether52	// they were talking about the selected commit or the current bisect commit,53	// and that was a bit confusing (and required extra keypresses).54	selectCurrentAfter := info.GetCurrentSha() == "" || info.GetCurrentSha() == commit.Sha55	// we need to wait to reselect if our bisect commits aren't ancestors of our 'start'56	// ref, because we'll be reloading our commits in that case.57	waitToReselect := selectCurrentAfter && !self.git.Bisect.ReachableFromStart(info)58	menuItems := []*types.MenuItem{59		{60			Label: fmt.Sprintf(self.c.Tr.Bisect.Mark, commit.ShortSha(), info.NewTerm()),61			OnPress: func() error {62				self.c.LogAction(self.c.Tr.Actions.BisectMark)63				if err := self.git.Bisect.Mark(commit.Sha, info.NewTerm()); err != nil {64					return self.c.Error(err)65				}66				return self.afterMark(selectCurrentAfter, waitToReselect)67			},68			Key: 'b',69		},...

bisect_state.go

Source:bisect_state.go

1package bisect2import (3	"math/rand"4	"sync"5)6type smartRev struct {7	Rev    string8	Cancel chan interface{}9	state  *BisectState10}11func (s *smartRev) Good() {12	s.state.markAsGood(s.Rev)13}14func (s *smartRev) Bad() {15	s.state.markAsBad(s.Rev)16}17type BisectState struct {18	revs []string // immutable19	indexes map[string]int20	good int21	bad  int22	// bisect tracker23	bisectSteps     []int24	bisectIteration int25	activeListeners map[int]*smartRev26	mu sync.RWMutex27	Done chan string28}29func NewBisectState(revs []string) *BisectState {30	state := &BisectState{31		revs:            revs,32		good:            len(revs) - 1,33		indexes:         make(map[string]int, len(revs)),34		bisectSteps:     make([]int, len(revs)),35		activeListeners: make(map[int]*smartRev, len(revs)),36		Done:            make(chan string),37	}38	state.initIndexesTable()39	state.initBisectSteps()40	return state41}42func (b *BisectState) initIndexesTable() {43	for i, rev := range b.revs {44		b.indexes[rev] = i45	}46}47func (b *BisectState) initBisectSteps() {48	for i := range b.bisectSteps {49		b.bisectSteps[i] = i50	}51	// Fully random52	rand.Seed(1)53	rand.Shuffle(len(b.bisectSteps), func(i, j int) {54		b.bisectSteps[i], b.bisectSteps[j] = b.bisectSteps[j], b.bisectSteps[i]55	})56}57func (b *BisectState) Next() *smartRev {58	b.mu.Lock()59	defer b.mu.Unlock()60	for ; b.bisectIteration < len(b.bisectSteps); b.bisectIteration++ {61		step := b.bisectSteps[b.bisectIteration]62		if step >= b.bad && step <= b.good {63			b.bisectIteration++64			rev := &smartRev{65				Rev:    b.revs[step],66				Cancel: make(chan interface{}),67				state:  b,68			}69			b.activeListeners[step] = rev70			return rev71		}72	}73	return nil74}75func (b *BisectState) getIndex(rev string) int {76	b.mu.RLock()77	defer b.mu.RUnlock()78	return b.indexes[rev]79}80func (b *BisectState) markAsGood(rev string) error {81	i := b.getIndex(rev)82	b.mu.Lock()83	defer b.mu.Unlock()84	if i >= b.good {85		return nil86	}87	b.good = i88	defer b.notifyActiveListeners()89	return nil90}91func (b *BisectState) markAsBad(rev string) error {92	i := b.getIndex(rev)93	b.mu.Lock()94	defer b.mu.Unlock()95	if i <= b.bad {96		return nil97	}98	b.bad = i99	defer b.notifyActiveListeners()100	return nil101}102func (b *BisectState) notifyActiveListeners() {103	for i := range b.activeListeners {104		if i < b.bad || i > b.good {105			defer delete(b.activeListeners, i)106			b.activeListeners[i].Cancel <- struct{}{}107		}108	}109	if (b.good - b.bad) <= 1 {110		b.Done <- b.revs[b.bad]111	}112}113func (b *BisectState) Stats() *BisectStats {114	b.mu.RLock()115	defer b.mu.RUnlock()116	revs := len(b.revs)117	left := revs - b.bisectIteration118	if left < 0 {119		left = 0120	}121	return &BisectStats{122		Pending: len(b.activeListeners),123		Left:    left,124		Total:   revs,125	}126}...

bisect

Using AI Code Generation

1import (2type bisect struct {3}4func (b bisect) f(x float64) float64 {5	return b.a*math.Pow(x, 4) + b.b*math.Pow(x, 3) + b.c*math.Pow(x, 2) + b.d*x + b.e6}7func (b bisect) bisect(a, b float64) float64 {8	if b.f(a)*b.f(b) >= 0 {9		fmt.Println("You have not assumed right a and b")10	}11	for (b-a) >= 0.0001 {12		c = (a + b) / 213		if b.f(c) == 0.0 {14		} else if b.f(c)*b.f(a) < 0 {15		} else {16		}17	}18}19func main() {20	b := bisect{1, -5, 6, 6, -20}21	fmt.Println("The value of root is : ", b.bisect(-200, 300))22}

bisect

Using AI Code Generation

1import (2type bisect struct {3	f    func(x float64) float644}5func (b bisect) root() float64 {6	x := (b.a + b.b) / 27	for math.Abs(b.f(x)) > 1e-6 {8		if b.f(x)*b.f(b.a) > 0 {9		} else {10		}11		x = (b.a + b.b) / 212	}13}14func main() {15	f := func(x float64) float64 { return x*x - 2 }16	b := bisect{f: f, a: 1, b: 2}17	fmt.Println(b.root())18}19import (20type Newton struct {21	f, df func(x float64) float6422}23func (n Newton) root() float64 {24	for math.Abs(n.f(n.x)) > 1e-6 {25		n.x -= n.f(n.x) / n.df(n.x)26	}27}28func main() {29	f := func(x float64) float64 { return x*x - 2 }30	df := func(x float64) float64 { return 2 * x }31	n := Newton{f: f, df: df, x: 1.5}32	fmt.Println(n.root())33}34import (35type secant struct {36	f    func(x float64) float6437}38func (s secant) root() float64 {39	for math.Abs(s.f(s.x)) > 1e-6 {40		s.x, s.y = s.y, s.y-s.f(s.y)*(s.y-s.x)/(s.f(s.y)-s.f(s.x))41	}42}

bisect

Using AI Code Generation

1import (2type Bisect struct {3	f      func(float64) float644}5func NewBisect(f func(float64) float64, a, b float64, eps, n int) *Bisect {6	return &Bisect{f, a, b, eps, n}7}8func (b *Bisect) Bisect() (float64, error) {9	c := (b.a + b.b) / 2.010	if b.f(c) == 0 {11	}12	if b.n == 0 {13		return 0, fmt.Errorf("maximum number of iterations exceeded")14	}15	if math.Abs(b.f(c)) < math.Pow(10, float64(-b.eps)) {16	}17	if b.f(b.a)*b.f(c) < 0 {18	} else {19	}20	return b.Bisect()21}22func main() {23	f := func(x float64) float64 {24	}25	b := NewBisect(f, 1, 2, 5, 100)26	root, err := b.Bisect()27	if err != nil {28		fmt.Println(err)29	} else {30		fmt.Println(root)31	}32}

bisect

Using AI Code Generation

1import (2func main() {3	fmt.Println("Enter the coefficients of the quadratic equation in the form of a,b,c")4	fmt.Scan(&a, &b, &c)5	if d > 0 {6		root1 = (-b + math.Sqrt(d)) / (2 * a)7		root2 = (-b - math.Sqrt(d)) / (2 * a)8		fmt.Println("The roots are real and distinct")9		fmt.Println("Root1 = ", root1)10		fmt.Println("Root2 = ", root2)11	} else if d == 0 {12		root1 = (-b + math.Sqrt(d)) / (2 * a)13		fmt.Println("The roots are real and same")14		fmt.Println("Root1 = ", root1)15		fmt.Println("Root2 = ", root1)16	} else {17		fmt.Println("The roots are imaginary")18	}19}

bisect

Using AI Code Generation

1import (2type Bisect struct {3}4func (b *Bisect) Initialize(a, b float64) {5	b.fa = b.f(a)6	b.fb = b.f(b)7}8func (b *Bisect) Bisect() float64 {9	b.m = (b.a + b.b) / 210	b.fm = b.f(b.m)11	if math.Abs(b.fm) < 0.001 {12	}13	if b.fa*b.fm < 0 {14	} else {15	}16	return b.Bisect()17}18func (b *Bisect) f(x float64) float64 {19}20func main() {21	b.Initialize(1.5, 2.5)22	fmt.Println("Root is:", b.Bisect())23}

bisect

Using AI Code Generation

1import (2type bisect struct {3}4func (b *bisect) bisect() {5	b.c = (b.a + b.b) / 26	b.fc = f(b.c)7	if math.Abs(b.fc) < 1e-8 {8		fmt.Println("The root is:", b.c)9	}10	if b.fa*b.fc < 0 {11	} else {12	}13	b.bisect()14}15func main() {16	fmt.Println("Enter the value of a and b")17	fmt.Scan(&a, &b)18	fa = f(a)19	fb = f(b)20	if fa*fb > 0 {21		fmt.Println("Root does not exist")22	}23	bis := bisect{a, b, 0, fa, fb, 0}24	bis.bisect()25}

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.