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How to use Done method of main Package

Best Syzkaller code snippet using main.Done

output_test.go

Source:output_test.go

1// Copyright 2013 The Go Authors. All rights reserved.2// Use of this source code is governed by a BSD-style3// license that can be found in the LICENSE file.4// +build race5package race_test6import (7	"internal/testenv"8	"io/ioutil"9	"os"10	"os/exec"11	"path/filepath"12	"regexp"13	"strings"14	"testing"15)16func TestOutput(t *testing.T) {17	for _, test := range tests {18		dir, err := ioutil.TempDir("", "go-build")19		if err != nil {20			t.Fatalf("failed to create temp directory: %v", err)21		}22		defer os.RemoveAll(dir)23		source := "main.go"24		if test.run == "test" {25			source = "main_test.go"26		}27		src := filepath.Join(dir, source)28		f, err := os.Create(src)29		if err != nil {30			t.Fatalf("failed to create file: %v", err)31		}32		_, err = f.WriteString(test.source)33		if err != nil {34			f.Close()35			t.Fatalf("failed to write: %v", err)36		}37		if err := f.Close(); err != nil {38			t.Fatalf("failed to close file: %v", err)39		}40		// Pass -l to the compiler to test stack traces.41		cmd := exec.Command(testenv.GoToolPath(t), test.run, "-race", "-gcflags=-l", src)42		// GODEBUG spoils program output, GOMAXPROCS makes it flaky.43		for _, env := range os.Environ() {44			if strings.HasPrefix(env, "GODEBUG=") ||45				strings.HasPrefix(env, "GOMAXPROCS=") ||46				strings.HasPrefix(env, "GORACE=") {47				continue48			}49			cmd.Env = append(cmd.Env, env)50		}51		cmd.Env = append(cmd.Env,52			"GOMAXPROCS=1", // see comment in race_test.go53			"GORACE="+test.gorace,54		)55		got, _ := cmd.CombinedOutput()56		if !regexp.MustCompile(test.re).MatchString(string(got)) {57			t.Fatalf("failed test case %v, expect:\n%v\ngot:\n%s",58				test.name, test.re, got)59		}60	}61}62var tests = []struct {63	name   string64	run    string65	gorace string66	source string67	re     string68}{69	{"simple", "run", "atexit_sleep_ms=0", `70package main71import "time"72func main() {73	done := make(chan bool)74	x := 075	startRacer(&x, done)76	store(&x, 43)77	<-done78}79func store(x *int, v int) {80	*x = v81}82func startRacer(x *int, done chan bool) {83	go racer(x, done)84}85func racer(x *int, done chan bool) {86	time.Sleep(10*time.Millisecond)87	store(x, 42)88	done <- true89}90`, `==================91WARNING: DATA RACE92Write at 0x[0-9,a-f]+ by goroutine [0-9]:93  main\.store\(\)94      .+/main\.go:12 \+0x[0-9,a-f]+95  main\.racer\(\)96      .+/main\.go:19 \+0x[0-9,a-f]+97Previous write at 0x[0-9,a-f]+ by main goroutine:98  main\.store\(\)99      .+/main\.go:12 \+0x[0-9,a-f]+100  main\.main\(\)101      .+/main\.go:8 \+0x[0-9,a-f]+102Goroutine [0-9] \(running\) created at:103  main\.startRacer\(\)104      .+/main\.go:15 \+0x[0-9,a-f]+105  main\.main\(\)106      .+/main\.go:7 \+0x[0-9,a-f]+107==================108Found 1 data race\(s\)109exit status 66110`},111	{"exitcode", "run", "atexit_sleep_ms=0 exitcode=13", `112package main113func main() {114	done := make(chan bool)115	x := 0116	go func() {117		x = 42118		done <- true119	}()120	x = 43121	<-done122}123`, `exit status 13`},124	{"strip_path_prefix", "run", "atexit_sleep_ms=0 strip_path_prefix=/main.", `125package main126func main() {127	done := make(chan bool)128	x := 0129	go func() {130		x = 42131		done <- true132	}()133	x = 43134	<-done135}136`, `137      go:7 \+0x[0-9,a-f]+138`},139	{"halt_on_error", "run", "atexit_sleep_ms=0 halt_on_error=1", `140package main141func main() {142	done := make(chan bool)143	x := 0144	go func() {145		x = 42146		done <- true147	}()148	x = 43149	<-done150}151`, `152==================153exit status 66154`},155	{"test_fails_on_race", "test", "atexit_sleep_ms=0", `156package main_test157import "testing"158func TestFail(t *testing.T) {159	done := make(chan bool)160	x := 0161	go func() {162		x = 42163		done <- true164	}()165	x = 43166	<-done167}168`, `169==================170PASS171Found 1 data race\(s\)172FAIL`},173	{"slicebytetostring_pc", "run", "atexit_sleep_ms=0", `174package main175func main() {176	done := make(chan string)177	data := make([]byte, 10)178	go func() {179		done <- string(data)180	}()181	data[0] = 1182	<-done183}184`, `185  runtime\.slicebytetostring\(\)186      .*/runtime/string\.go:.*187  main\.main\.func1\(\)188      .*/main.go:7`},189}...

Done

Using AI Code Generation

1func main() {2    wg.Add(1)3    go func() {4        defer wg.Done()5        fmt.Println("Hello from goroutine")6    }()7    wg.Wait()8    fmt.Println("Hello from main")9}10func main() {11    wg.Add(1)12    go func() {13        defer wg.Done()14        fmt.Println("Hello from goroutine")15    }()16    wg.Wait()17    fmt.Println("Hello from main")18}19func main() {20    for i := 0; i < 5; i++ {21        wg.Add(1)22        go func() {23            defer wg.Done()24            fmt.Println("Hello from goroutine")25        }()26    }27    wg.Wait()28    fmt.Println("Hello from main")29}30func main() {31    for i := 0; i < 5; i++ {

Done

Using AI Code Generation

1func main() {2    ctx, cancel := context.WithCancel(context.Background())3    go func() {4        time.Sleep(5 * time.Second)5        cancel()6    }()7    select {8    case <-time.After(6 * time.Second):9        fmt.Println("overslept")10    case <-ctx.Done():11        fmt.Println(ctx.Err())12    }13}14func main() {15    ctx, cancel := context.WithCancel(context.Background())16    go func() {17        time.Sleep(5 * time.Second)18        cancel()19    }()20    select {21    case <-time.After(6 * time.Second):22        fmt.Println("overslept")23    case <-ctx.Done():24        fmt.Println(ctx.Err())25    }26}27func main() {28    ctx, cancel := context.WithCancel(context.Background())29    go func() {30        time.Sleep(5 * time.Second)31        cancel()32    }()33    select {34    case <-time.After(6 * time.Second):35        fmt.Println("overslept")36    case <-ctx.Done():37        fmt.Println(ctx.Err())38    }39}40func main() {41    ctx, cancel := context.WithCancel(context.Background())42    go func() {43        time.Sleep(5 * time.Second)44        cancel()45    }()46    select {47    case <-time.After(6 * time.Second):48        fmt.Println("overslept")49    case <-ctx.Done():50        fmt.Println(ctx.Err())51    }52}53func main() {54    ctx, cancel := context.WithCancel(context.Background())55    go func() {56        time.Sleep(5 * time.Second)57        cancel()58    }()59    select {60    case <-time.After(6 * time.Second):61        fmt.Println("overslept")62    case <-ctx.Done():63        fmt.Println(ctx.Err())64    }65}

Done

Using AI Code Generation

1import (2func main() {3    fmt.Println("Start")4    ch := make(chan int)5    go func() {6        time.Sleep(2 * time.Second)7    }()8    fmt.Println("End")9}

Done

Using AI Code Generation

1import (2func main() {3	ch := make(chan int)4	go func() {5	}()6}7main.main()8main.main.func1()9runtime.gopark(0x4a3b60, 0xc20800a0e8, 0x4a1d40, 0xa, 0x17, 0x2)10runtime.goparkunlock(0xc20800a0e8, 0x4a1d40, 0xa, 0x17, 0x2)11runtime.chanrecv(0x2a6, 0xc20800a080, 0x1, 0x1)12runtime.chanrecv1(0x2a6, 0xc20800a080)13main.main()14runtime.main()15runtime.goexit()

Done

Using AI Code Generation

1import (2func main() {3	fmt.Println("Main function started")4	c := make(chan int)5	go func() {6		fmt.Println("Go routine started")7		fmt.Println("Go routine stopped")8	}()9	fmt.Println("Main function stopped")10}11import (12func main() {13	fmt.Println("Main function started")14	wg.Add(1)15	go func() {16		fmt.Println("Go routine started")17		wg.Done()18		fmt.Println("Go routine stopped")19	}()20	wg.Wait()21	fmt.Println("Main function stopped")22}23import (24func main() {25	fmt.Println("Main function started")26	wg.Add(1)27	go func() {28		fmt.Println("Go routine 1 started")29		wg.Done()30		fmt.Println("Go routine 1 stopped")31	}()32	wg.Add(1)33	go func() {34		fmt.Println("Go routine 2 started")35		wg.Done()36		fmt.Println("Go routine 2 stopped")37	}()38	wg.Wait()39	fmt.Println("Main function stopped")40}

Done

Using AI Code Generation

1import (2func main() {3 fmt.Scanln(&input)4}5import (6func main() {7 fmt.Scanln(&input)8}

Done

Using AI Code Generation

1func main() {2    fmt.Println("Hello, playground")3    ch := make(chan int)4    go func() {5    }()6    fmt.Println("Done")7}8func main() {9    fmt.Println("Hello, playground")10    ch := make(chan int)11    go func() {12    }()13    fmt.Println("Done")14}15func main() {16    fmt.Println("Hello, playground")17    ch := make(chan int)18    go func() {19    }()20    fmt.Println("Done")21}22func main() {23    fmt.Println("Hello, playground")24    ch := make(chan int)25    go func() {26    }()27    fmt.Println("Done")28}29func main() {30    fmt.Println("Hello, playground")31    ch := make(chan int)32    go func() {33    }()34    fmt.Println("Done")35}36func main() {37    fmt.Println("Hello, playground")38    ch := make(chan int)39    go func() {40    }()41    fmt.Println("Done")42}43func main() {44    fmt.Println("Hello, playground")45    ch := make(chan int)46    go func() {47    }()48    fmt.Println("Done")49}50func main() {51    fmt.Println("Hello, playground")52    ch := make(chan int)53    go func() {54    }()55    fmt.Println("Done")56}57func main() {58    fmt.Println("Hello, playground")59    ch := make(chan int

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