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

Copied to Clipboard!

How to use Error method of main Package

Best Mock code snippet using main.Error

main.go

Source:main.go

1// Copyright 2017 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// Check correctness of various closure corner cases5// that are expected to be inlined6package main7var ok bool8var sink int9func main() {10	{11		if x := func() int { // ERROR "can inline main.func1"12			return 113		}(); x != 1 { // ERROR "inlining call to main.func1"14			ppanic("x != 1")15		}16		if x := func() int { // ERROR "can inline main.func2" "func literal does not escape"17			return 118		}; x() != 1 { // ERROR "inlining call to main.func2"19			ppanic("x() != 1")20		}21	}22	{23		if y := func(x int) int { // ERROR "can inline main.func3"24			return x + 225		}(40); y != 42 { // ERROR "inlining call to main.func3"26			ppanic("y != 42")27		}28		if y := func(x int) int { // ERROR "can inline main.func4" "func literal does not escape"29			return x + 230		}; y(40) != 42 { // ERROR "inlining call to main.func4"31			ppanic("y(40) != 42")32		}33	}34	{35		y := func(x int) int { // ERROR "can inline main.func5" "func literal does not escape"36			return x + 237		}38		y = func(x int) int { // ERROR "can inline main.func6" "func literal does not escape"39			return x + 140		}41		if y(40) != 41 {42			ppanic("y(40) != 41")43		}44	}45	{46		func() { // ERROR "func literal does not escape"47			y := func(x int) int { // ERROR "can inline main.func7.1" "func literal does not escape"48				return x + 249			}50			y = func(x int) int { // ERROR "can inline main.func7.2" "func literal does not escape"51				return x + 152			}53			if y(40) != 41 {54				ppanic("y(40) != 41")55			}56		}()57	}58	{59		y := func(x int) int { // ERROR "can inline main.func8" "func literal does not escape"60			return x + 261		}62		y, sink = func(x int) int { // ERROR "can inline main.func9" "func literal does not escape"63			return x + 164		}, 4265		if y(40) != 41 {66			ppanic("y(40) != 41")67		}68	}69	{70		func() { // ERROR "func literal does not escape"71			y := func(x int) int { // ERROR "can inline main.func10.1" "func literal does not escape"72				return x + 273			}74			y, sink = func(x int) int { // ERROR "can inline main.func10.2" "func literal does not escape"75				return x + 176			}, 4277			if y(40) != 41 {78				ppanic("y(40) != 41")79			}80		}()81	}82	{83		y := func(x int) int { // ERROR "can inline main.func11" "func literal does not escape"84			return x + 285		}86		y, sink = func() (func(int) int, int) { // ERROR "can inline main.func12"87			return func(x int) int { // ERROR "can inline main.func12"88				return x + 189			}, 4290		}() // ERROR "func literal does not escape" "inlining call to main.func12"91		if y(40) != 41 {92			ppanic("y(40) != 41")93		}94	}95	{96		func() { // ERROR "func literal does not escape"97			y := func(x int) int { // ERROR "func literal does not escape" "can inline main.func13.1"98				return x + 299			}100			y, sink = func() (func(int) int, int) { // ERROR "can inline main.func13.2"101				return func(x int) int { // ERROR "can inline main.func13.2"102					return x + 1103				}, 42104			}() // ERROR "inlining call to main.func13.2" "func literal does not escape"105			if y(40) != 41 {106				ppanic("y(40) != 41")107			}108		}()109	}110	{111		y := func(x int) int { // ERROR "can inline main.func14" "func literal does not escape"112			return x + 2113		}114		y, ok = map[int]func(int) int{ // ERROR "does not escape"115			0: func(x int) int { return x + 1 }, // ERROR "can inline main.func15" "func literal escapes"116		}[0]117		if y(40) != 41 {118			ppanic("y(40) != 41")119		}120	}121	{122		func() { // ERROR "func literal does not escape"123			y := func(x int) int { // ERROR "can inline main.func16.1" "func literal does not escape"124				return x + 2125			}126			y, ok = map[int]func(int) int{ // ERROR "does not escape"127				0: func(x int) int { return x + 1 }, // ERROR "can inline main.func16.2" "func literal escapes"128			}[0]129			if y(40) != 41 {130				ppanic("y(40) != 41")131			}132		}()133	}134	{135		y := func(x int) int { // ERROR "can inline main.func17" "func literal does not escape"136			return x + 2137		}138		y, ok = interface{}(func(x int) int { // ERROR "can inline main.func18" "does not escape"139			return x + 1140		}).(func(int) int)141		if y(40) != 41 {142			ppanic("y(40) != 41")143		}144	}145	{146		func() { // ERROR "func literal does not escape"147			y := func(x int) int { // ERROR "can inline main.func19.1" "func literal does not escape"148				return x + 2149			}150			y, ok = interface{}(func(x int) int { // ERROR "can inline main.func19.2" "does not escape"151				return x + 1152			}).(func(int) int)153			if y(40) != 41 {154				ppanic("y(40) != 41")155			}156		}()157	}158	{159		x := 42160		if y := func() int { // ERROR "can inline main.func20"161			return x162		}(); y != 42 { // ERROR "inlining call to main.func20"163			ppanic("y != 42")164		}165		if y := func() int { // ERROR "can inline main.func21" "func literal does not escape"166			return x167		}; y() != 42 { // ERROR "inlining call to main.func21"168			ppanic("y() != 42")169		}170	}171	{172		x := 42173		if z := func(y int) int { // ERROR "can inline main.func22"174			return func() int { // ERROR "can inline main.func22.1" "can inline main.func30"175				return x + y176			}() // ERROR "inlining call to main.func22.1"177		}(1); z != 43 { // ERROR "inlining call to main.func22" "inlining call to main.func30"178			ppanic("z != 43")179		}180		if z := func(y int) int { // ERROR "func literal does not escape" "can inline main.func23"181			return func() int { // ERROR "can inline main.func23.1" "can inline main.func31"182				return x + y183			}() // ERROR "inlining call to main.func23.1"184		}; z(1) != 43 { // ERROR "inlining call to main.func23" "inlining call to main.func31"185			ppanic("z(1) != 43")186		}187	}188	{189		a := 1190		func() { // ERROR "can inline main.func24"191			func() { // ERROR "can inline main.func24" "can inline main.func32"192				a = 2193			}() // ERROR "inlining call to main.func24"194		}() // ERROR "inlining call to main.func24" "inlining call to main.func32"195		if a != 2 {196			ppanic("a != 2")197		}198	}199	{200		b := 2201		func(b int) { // ERROR "func literal does not escape"202			func() { // ERROR "can inline main.func25.1"203				b = 3204			}() // ERROR "inlining call to main.func25.1"205			if b != 3 {206				ppanic("b != 3")207			}208		}(b)209		if b != 2 {210			ppanic("b != 2")211		}212	}213	{214		c := 3215		func() { // ERROR "func literal does not escape"216			c = 4217			func() { // ERROR "func literal does not escape"218				if c != 4 {219					ppanic("c != 4")220				}221				recover() // prevent inlining222			}()223		}()224		if c != 4 {225			ppanic("c != 4")226		}227	}228	{229		a := 2230		if r := func(x int) int { // ERROR "func literal does not escape"231			b := 3232			return func(y int) int { // ERROR "can inline main.func27.1"233				c := 5234				return func(z int) int { // ERROR "can inline main.func27.1.1" "can inline main.func27.2"235					return a*x + b*y + c*z236				}(10) // ERROR "inlining call to main.func27.1.1"237			}(100) // ERROR "inlining call to main.func27.1" "inlining call to main.func27.2"238		}(1000); r != 2350 {239			ppanic("r != 2350")240		}241	}242	{243		a := 2244		if r := func(x int) int { // ERROR "func literal does not escape"245			b := 3246			return func(y int) int { // ERROR "can inline main.func28.1"247				c := 5248				func(z int) { // ERROR "can inline main.func28.1.1" "can inline main.func28.2"249					a = a * x250					b = b * y251					c = c * z252				}(10) // ERROR "inlining call to main.func28.1.1"253				return a + c254			}(100) + b // ERROR "inlining call to main.func28.1" "inlining call to main.func28.2"255		}(1000); r != 2350 {256			ppanic("r != 2350")257		}258		if a != 2000 {259			ppanic("a != 2000")260		}261	}262}263//go:noinline264func ppanic(s string) { // ERROR "leaking param: s"265	panic(s) // ERROR "s escapes to heap"266}...

premain.go

Source:premain.go

2import "os"3import . "github.com/volution/z-run/lib/common"4type MainDescriptor struct {5	6	Main func (_context *MainContext) (*Error)7	8	ExecutableName string9	ExecutableEnvironmentHint string10	11	Flags interface{}12	13	HelpTxt string14	15	ManualTxt string16	ManualHtml string17	ManualMan string18}19type MainContext struct {20	21	Descriptor *MainDescriptor22	23	Executable0 string24	Executable string25	26	Argument0 string27	Arguments []string28	29	EnvironmentMap map[string]string30	EnvironmentList []string31	32	Flags interface{}33}34func PreMainWith (_descriptor *MainDescriptor) () {35	36	if _error := InitializeMainRuntime (); _error != nil {37		panic (AbortError (_error))38	}39	40	LogfTool = _descriptor.ExecutableName41	42	if _error := CleanMainEnvironment (); _error != nil {43		panic (AbortError (_error))44	}45	46	var _executable0, _executable string47	if _executable0_0, _executable_0, _error := ResolveMainExecutable (_descriptor.ExecutableName, _descriptor.ExecutableEnvironmentHint); _error == nil {48		_executable0 = _executable0_049		_executable = _executable_050	} else {51		panic (AbortError (_error))52	}53	54	var _environmentMap map[string]string55	var _environmentList []string56	if _environmentMap_0, _environmentList_0, _error := ResolveMainEnvironment (); _error == nil {57		_environmentMap = _environmentMap_058		_environmentList = _environmentList_059	} else {60		panic (AbortError (_error))61	}62	63	if _error := InterceptMainSpecialFlags (_descriptor.ExecutableName, _executable0, _executable, _descriptor.HelpTxt, _descriptor.ManualTxt, _descriptor.ManualHtml, _descriptor.ManualMan, _environmentMap); _error != nil {64		panic (AbortError (_error))65	}66	67	var _argument0 string68	var _arguments []string69	if _argument0_0, _arguments_0, _error := ResolveMainArguments (_executable0, _executable); _error == nil {70		_argument0 = _argument0_071		_arguments = _arguments_072	} else {73		panic (AbortError (_error))74	}75	76	if _descriptor.Flags != nil {77		if _error := ResolveMainFlags (_descriptor.ExecutableName, _arguments, _environmentMap, _descriptor.Flags, os.Stderr); _error != nil {78			panic (AbortError (_error))79		}80	}81	82	_context := & MainContext {83			84			Descriptor : _descriptor,85			86			Flags : _descriptor.Flags,87			88			Executable0 : _executable0,89			Executable : _executable,90			91			Argument0 : _argument0,92			Arguments : _arguments,93			94			EnvironmentMap : _environmentMap,95			EnvironmentList : _environmentList,96		}97	98	if _error := _descriptor.Main (_context); _error != nil {99		panic (AbortError (_error))100	} else {101		panic (ExitMainSucceeded ())102	}103}...

bug017.go

Source:bug017.go

1// run2// Copyright 2009 The Go Authors. All rights reserved.3// Use of this source code is governed by a BSD-style4// license that can be found in the LICENSE file.5package main6func main() {7	var s2 string = "\a\b\f\n\r\t\v";  // \r is miscompiled8	_ = s2;9}10/*11main.go.c: In function âmain_mainâ:12main.go.c:20: error: missing terminating " character13main.go.c:21: error: missing terminating " character14main.go.c:24: error: âdefâ undeclared (first use in this function)15main.go.c:24: error: (Each undeclared identifier is reported only once16main.go.c:24: error: for each function it appears in.)17main.go.c:24: error: syntax error before âdefâ18main.go.c:24: error: missing terminating " character19main.go.c:25: warning: excess elements in struct initializer20main.go.c:25: warning: (near initialization for âslitâ)21main.go.c:36: error: syntax error at end of input22*/...

Error

Using AI Code Generation

1import (2type MyError struct {3}4func (e *MyError) Error() string {5	return fmt.Sprintf("at %v, %s", e.When, e.What)6}7func run() error {8	return &MyError{9		time.Now(),10	}11}12func main() {13	if err := run(); err != nil {14		log.Println(err)15	}16}17import (18type MyError struct {19}20func (e *MyError) Error() string {21	return fmt.Sprintf("at %v, %s", e.When, e.What)22}23func run() error {24	return &MyError{25		time.Now(),26	}27}28func main() {29	if err := run(); err != nil {30		log.Println(err)31	}32}33import (34type MyError struct {35}36func (e *MyError) Error() string {37	return fmt.Sprintf("at %v,

Error

Using AI Code Generation

1main.Error()2main.Error()3main.Error()4main.Error()5main.Error()6main.Error()7main.Error()8main.Error()9main.Error()10main.Error()11main.Error()12main.Error()13main.Error()14main.Error()15main.Error()16main.Error()17main.Error()18main.Error()19main.Error()20main.Error()21main.Error()22main.Error()23main.Error()24main.Error()25main.Error()

Error

Using AI Code Generation

1func main() {2    err := errors.New("error message")3    fmt.Println(err.Error())4}5func main() {6    fmt.Println(err.Error())7}8func main() {9    fmt.Println(err.Error())10}11func main() {12    fmt.Println(err.Error())13}14func main() {15    fmt.Println(err.Error())16}17func main() {18    fmt.Println(err.Error())19}20func main() {21    fmt.Println(err.Error())22}23func main() {24    fmt.Println(err.Error())25}26func main() {27    fmt.Println(err.Error())28}29func main() {30    fmt.Println(err.Error())31}32func main() {33    fmt.Println(err.Error())34}35func main() {36    fmt.Println(err.Error())37}38func main() {39    fmt.Println(err.Error())40}41func main() {

Error

Using AI Code Generation

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

Error

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello, playground")4	err := os.Mkdir("test", 0755)5	if err != nil {6		fmt.Println(err)7	}8}

Error

Using AI Code Generation

1import "fmt"2func main() {3    err := fmt.Errorf("Error: %s", "Error")4    fmt.Println(err)5}6Errorf() method is used to create a new error object. This method is a part of fmt package. The syntax of this method is:7func Errorf(format string, a ...interface{}) error8Recommended Posts: Go | Errorf() method in Go9Go | Error() method in Go10Go | Println() method in Go11Go | Printf() method in Go12Go | Print() method in Go13Go | Scanln() method in Go14Go | Scanf() method in Go15Go | Scan() method in Go16Go | Sscanln() method in Go17Go | Sscanf() method in Go18Go | Sscan() method in Go19Go | Fscanln() method in Go20Go | Fscanf() method in Go21Go | Fscan() method in Go22Go | Fprintln() method in Go23Go | Fprintf() method in Go24Go | Fprint() method in Go25Go | Fclose() method in Go26Go | Fopen() method in Go27Go | Fread() method in Go28Go | Fwrite() method in Go29Go | Fseek() method in Go

Error

Using AI Code Generation

1import ( "fmt" "errors" )2func main() {3var err error = errors.New("Error: This is an error") fmt.Println(err)4}5import ( "fmt" "errors" )6func main() {7var err error = errors.New("Error: This is an error") fmt.Println(err.Error())8}9import ( "fmt" "errors" )10func main() {11var err error = errors.New("Error: This is an error") fmt.Println(err == nil)12}13import ( "fmt" "errors" )14func main() {15var err error = errors.New("Error: This is an error") fmt.Println(err != nil)16}17import ( "fmt" "errors" )18func main() {19var err error = errors.New("Error: This is an error") fmt.Println(err == errors.New("Error: This is an error"))20}21import ( "fmt" "errors" )22func main() {23var err error = errors.New("Error: This is an error") fmt.Println(err != errors.New("Error: This is an error"))24}25import ( "fmt" "errors" )26func main() {27var err error = errors.New("Error: This is an error") fmt.Println(err == errors.New("Error: This is an error"))28}29import ( "fmt" "errors" )30func main() {31var err error = errors.New("Error: This is an error") fmt.Println(err != errors.New("Error: This is an error"))32}

Error

Using AI Code Generation

1func main() {2  var err error = errors.New("error message")3  fmt.Println(err.Error())4}5func main() {6  var err error = fmt.Errorf("error message")7  fmt.Println(err.Error())8}9func main() {10  var err error = errors.New("error message")11  fmt.Println(err.Error())12}13func main() {14  var err error = errors.New("error message")15  fmt.Println(err.Error())16}17func main() {18  var err error = errors.New("error message")19  fmt.Println(err.Error())20}21func main() {22  var err error = errors.New("error message")23  fmt.Println(err.Error())24}25func main() {26  var err error = errors.New("error message")27  fmt.Println(err.Error())28}29func main() {30  var err error = errors.New("error message")31  fmt.Println(err.Error())32}

Error

Using AI Code Generation

1import "fmt"2func main() {3	fmt.Println(Error("Error"))4}5import "fmt"6func main() {7	fmt.Println(main.Error("Error"))8}9import "fmt"10func main() {11	fmt.Println(main.Error("Error"))12}13import "fmt"14func main() {15	fmt.Println(main.Error("Error"))16}17import "fmt"18func main() {19	fmt.Println(main.Error("Error"))20}21import "fmt"22func main() {23	fmt.Println(main.Error("Error"))24}25import "fmt"26func main() {27	fmt.Println(main.Error("Error"))28}29import "fmt"30func main() {31	fmt.Println(main.Error("Error"))32}

Error

Using AI Code Generation

1func main() {2    fmt.Println("Hello, playground")3    fmt.Println(err.Error())4}5func main() {6    fmt.Println("Hello, playground")7    fmt.Println(fmt.Errorf("error: %d", 123))8}

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.