How to use forEachFile method of report Package

Best Syzkaller code snippet using report.forEachFile

report_test.go

Source:report_test.go

...16	"github.com/google/syzkaller/pkg/osutil"17)18var flagUpdate = flag.Bool("update", false, "update test files accordingly to current results")19func TestParse(t *testing.T) {20	forEachFile(t, "report", testParseFile)21}22type ParseTest struct {23	FileName   string24	Log        []byte25	Title      string26	StartLine  string27	EndLine    string28	Corrupted  bool29	Suppressed bool30	HasReport  bool31	Report     []byte32}33func testParseFile(t *testing.T, reporter Reporter, fn string) {34	input, err := os.Open(fn)35	if err != nil {36		t.Fatal(err)37	}38	defer input.Close()39	const (40		phaseHeaders = iota41		phaseLog42		phaseReport43	)44	phase := phaseHeaders45	test := &ParseTest{46		FileName: fn,47	}48	prevEmptyLine := false49	s := bufio.NewScanner(input)50	for s.Scan() {51		switch phase {52		case phaseHeaders:53			const (54				titlePrefix      = "TITLE: "55				startPrefix      = "START: "56				endPrefix        = "END: "57				corruptedPrefix  = "CORRUPTED: "58				suppressedPrefix = "SUPPRESSED: "59			)60			switch ln := s.Text(); {61			case strings.HasPrefix(ln, "#"):62			case strings.HasPrefix(ln, titlePrefix):63				test.Title = ln[len(titlePrefix):]64			case strings.HasPrefix(ln, startPrefix):65				test.StartLine = ln[len(startPrefix):]66			case strings.HasPrefix(ln, endPrefix):67				test.EndLine = ln[len(endPrefix):]68			case strings.HasPrefix(ln, corruptedPrefix):69				switch v := ln[len(corruptedPrefix):]; v {70				case "Y":71					test.Corrupted = true72				case "N":73					test.Corrupted = false74				default:75					t.Fatalf("unknown CORRUPTED value %q", v)76				}77			case strings.HasPrefix(ln, suppressedPrefix):78				switch v := ln[len(suppressedPrefix):]; v {79				case "Y":80					test.Suppressed = true81				case "N":82					test.Suppressed = false83				default:84					t.Fatalf("unknown SUPPRESSED value %q", v)85				}86			case ln == "":87				phase = phaseLog88			default:89				t.Fatalf("unknown header field %q", ln)90			}91		case phaseLog:92			if prevEmptyLine && string(s.Bytes()) == "REPORT:" {93				test.HasReport = true94				phase = phaseReport95			} else {96				test.Log = append(test.Log, s.Bytes()...)97				test.Log = append(test.Log, '\n')98			}99		case phaseReport:100			test.Report = append(test.Report, s.Bytes()...)101			test.Report = append(test.Report, '\n')102		}103		prevEmptyLine = len(s.Bytes()) == 0104	}105	if s.Err() != nil {106		t.Fatalf("file scanning error: %v", s.Err())107	}108	if len(test.Log) == 0 {109		t.Fatalf("can't find log in input file")110	}111	testParseImpl(t, reporter, test)112	// In some cases we get output with \r\n for line endings,113	// ensure that regexps are not confused by this.114	bytes.Replace(test.Log, []byte{'\n'}, []byte{'\r', '\n'}, -1)115	testParseImpl(t, reporter, test)116}117func testParseImpl(t *testing.T, reporter Reporter, test *ParseTest) {118	rep := reporter.Parse(test.Log)119	containsCrash := reporter.ContainsCrash(test.Log)120	expectCrash := (test.Title != "")121	if expectCrash && !containsCrash {122		t.Fatalf("ContainsCrash did not find crash")123	}124	if !expectCrash && containsCrash {125		t.Fatalf("ContainsCrash found unexpected crash")126	}127	if rep != nil && rep.Title == "" {128		t.Fatalf("found crash, but title is empty")129	}130	title, corrupted, corruptedReason, suppressed := "", false, "", false131	if rep != nil {132		title = rep.Title133		corrupted = rep.Corrupted134		corruptedReason = rep.CorruptedReason135		suppressed = rep.Suppressed136	}137	if title != test.Title || corrupted != test.Corrupted || suppressed != test.Suppressed {138		if *flagUpdate && test.StartLine == "" && test.EndLine == "" {139			buf := new(bytes.Buffer)140			fmt.Fprintf(buf, "TITLE: %v\n", title)141			if corrupted {142				fmt.Fprintf(buf, "CORRUPTED: Y\n")143			}144			if suppressed {145				fmt.Fprintf(buf, "SUPPRESSED: Y\n")146			}147			fmt.Fprintf(buf, "\n%s", test.Log)148			if test.HasReport {149				fmt.Fprintf(buf, "REPORT:\n%s", test.Report)150			}151			if err := ioutil.WriteFile(test.FileName, buf.Bytes(), 0640); err != nil {152				t.Logf("failed to update test file: %v", err)153			}154		}155		t.Fatalf("want:\nTITLE: %s\nCORRUPTED: %v\nSUPPRESSED: %v\n"+156			"got:\nTITLE: %s\nCORRUPTED: %v (%v)\nSUPPRESSED: %v\n",157			test.Title, test.Corrupted, test.Suppressed,158			title, corrupted, corruptedReason, suppressed)159	}160	if title != "" && len(rep.Report) == 0 {161		t.Fatalf("found crash message but report is empty")162	}163	if rep != nil {164		checkReport(t, rep, test)165	}166}167func checkReport(t *testing.T, rep *Report, test *ParseTest) {168	if test.HasReport && !bytes.Equal(rep.Report, test.Report) {169		t.Fatalf("extracted wrong report:\n%s\nwant:\n%s", rep.Report, test.Report)170	}171	if !bytes.Equal(rep.Output, test.Log) {172		t.Fatalf("bad Output:\n%s", rep.Output)173	}174	if test.StartLine != "" {175		if test.EndLine == "" {176			test.EndLine = test.StartLine177		}178		startPos := bytes.Index(test.Log, []byte(test.StartLine))179		endPos := bytes.Index(test.Log, []byte(test.EndLine)) + len(test.EndLine)180		if rep.StartPos != startPos || rep.EndPos != endPos {181			t.Fatalf("bad start/end pos %v-%v, want %v-%v, line %q",182				rep.StartPos, rep.EndPos, startPos, endPos,183				string(test.Log[rep.StartPos:rep.EndPos]))184		}185	}186}187func TestGuiltyFile(t *testing.T) {188	forEachFile(t, "guilty", testGuiltyFile)189}190func testGuiltyFile(t *testing.T, reporter Reporter, fn string) {191	data, err := ioutil.ReadFile(fn)192	if err != nil {193		t.Fatal(err)194	}195	for bytes.HasPrefix(data, []byte{'#'}) {196		nl := bytes.Index(data, []byte{'\n'})197		if nl == -1 {198			t.Fatalf("unterminated comment in file")199		}200		data = data[nl+1:]201	}202	const prefix = "FILE: "203	if !bytes.HasPrefix(data, []byte(prefix)) {204		t.Fatalf("no %v prefix in file", prefix)205	}206	nlnl := bytes.Index(data[len(prefix):], []byte{'\n', '\n'})207	if nlnl == -1 {208		t.Fatalf("no \\n\\n in file")209	}210	file := string(data[len(prefix) : len(prefix)+nlnl])211	report := data[len(prefix)+nlnl:]212	if guilty := reporter.(guilter).extractGuiltyFile(report); guilty != file {213		t.Fatalf("got guilty %q, want %q", guilty, file)214	}215}216func forEachFile(t *testing.T, dir string, fn func(t *testing.T, reporter Reporter, fn string)) {217	testFilenameRe := regexp.MustCompile("^[0-9]+$")218	for os := range ctors {219		path := filepath.Join("testdata", os, dir)220		if !osutil.IsExist(path) {221			continue222		}223		files, err := ioutil.ReadDir(path)224		if err != nil {225			t.Fatal(err)226		}227		cfg := &mgrconfig.Config{228			TargetOS: os,229		}230		reporter, err := NewReporter(cfg)...

forEachFile

Using AI Code Generation

1import (2func main() {3	dir, err := os.Getwd()4	if err != nil {5		log.Fatal(err)6	}7	report := new(Report)8	report.forEachFile(dir, report.printFile)9}10type Report struct {11}12func (r *Report) printFile(path string, info os.FileInfo, err error) error {13	fmt.Println(path)14}15func (r *Report) forEachFile(root string, fn filepath.WalkFunc) {16	err := filepath.Walk(root, fn)17	if err != nil {18		panic(err)19	}20}

forEachFile

Using AI Code Generation

1import (2type report struct {3}4func (r report) forEachFile(callback func(path string, info os.FileInfo)) error {5	return filepath.Walk(r.path, func(path string, info os.FileInfo, err error) error {6		if err != nil {7		}8		callback(path, info)9	})10}11func main() {12	r := report{13	}14	err := r.forEachFile(func(path string, info os.FileInfo) {15		if strings.HasSuffix(path, ".go") {16			fmt.Println(path)17		}18	})19	if err != nil {20		log.Fatal(err)21	}22}

forEachFile

Using AI Code Generation

1import (2type report struct {3}4func (r *report) forEachFile(path string, f os.FileInfo, err error) error {5	if err != nil {6	}7	if f.IsDir() {8	}9	if strings.HasSuffix(f.Name(), r.suffix) {10	}11}12func main() {13	r := &report{suffix: ".go"}14	err := filepath.Walk("./", r.forEachFile)15	if err != nil {16		log.Fatal(err)17	}18	fmt.Printf("Total number of files with suffix %q: %d\n", r.suffix, r.count)19}

forEachFile

Using AI Code Generation

1import (2func main() {3	report := &Report{}4	err := report.forEachFile(".", func(path string, info os.FileInfo, err error) error {5		if err != nil {6		}7		fmt.Println(path)8	})9	if err != nil {10		log.Fatal(err)11	}12}13import (14func main() {15	report := &Report{}16	err := report.forEachFile(".", func(path string, info os.FileInfo, err error) error {17		if err != nil {18		}19		if !info.IsDir() {20		}21	})22	if err != nil {23		log.Fatal(err)24	}25	fmt.Printf("%d files\n", numFiles)26}27import (28func main() {29	report := &Report{}30	err := report.forEachFile(".", func(path string, info os.FileInfo, err error) error {31		if err != nil {32		}33		if !info.IsDir() && filepath.Ext(path) == ".go" {34		}35	})36	if err != nil {37		log.Fatal(err)38	}39	fmt.Printf("%d files\n", numFiles)40}41import (42func main()

forEachFile

Using AI Code Generation

1import (2func main() {3	r := new(report)4	file, err := os.Create("report.txt")5	if err != nil {6		log.Fatal(err)7	}8	defer file.Close()9	r.forEachFile(file, "C:/Users/Pranav/Desktop/")10}11type report struct{}12func (r *report) forEachFile(file *os.File, root string) error {13	err := filepath.Walk(root, func(path string, info os.FileInfo, err error) error {14		if err != nil {15		}16		if info.IsDir() {17		}18		fmt.Fprintln(file, info.Name())19	})20}

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