Best Go-testdeep code snippet using td_test.matchError
equal_test.go
Source:equal_test.go  
...39					if err == nil {40						t.Errorf("An Error should have occurred")41						return42					}43					if !matchError(t, err.(*ctxerr.Error),44						expectedError{45							Message:  mustBe("values differ"),46							Path:     mustBe("DATA[1]"),47							Got:      mustBe("2"),48							Expected: mustBe("42"),49						}, false) {50						return51					}52				})53			if !ok {54				return55			}56			// Second error57			eErr := err.(*ctxerr.Error).Next58			t.Run("Second error",59				func(t *testing.T) {60					if eErr == nil {61						t.Errorf("A second Error should have occurred")62						return63					}64					if !matchError(t, eErr,65						expectedError{66							Message:  mustBe("values differ"),67							Path:     mustBe("DATA[2]"),68							Got:      mustBe("3"),69							Expected: mustBe("43"),70						}, false) {71						return72					}73					if eErr.Next != ctxerr.ErrTooManyErrors {74						if eErr.Next == nil {75							t.Error("ErrTooManyErrors should follow the 2 errors")76						} else {77							t.Errorf("Only 2 Errors should have occurred. Found 3rd: %s",78								eErr.Next)79						}80						return81					}82				})83		})84	t.Run("DefaultContextConfig.MaxErrors = -1 (aka all errors)",85		func(t *testing.T) {86			td.DefaultContextConfig.MaxErrors = -187			err := td.EqDeeplyError([8]int{1, 2, 3, 4}, [8]int{1, 42, 43, 44})88			// First error89			ok := t.Run("First error",90				func(t *testing.T) {91					if err == nil {92						t.Errorf("An Error should have occurred")93						return94					}95					if !matchError(t, err.(*ctxerr.Error),96						expectedError{97							Message:  mustBe("values differ"),98							Path:     mustBe("DATA[1]"),99							Got:      mustBe("2"),100							Expected: mustBe("42"),101						}, false) {102						return103					}104				})105			if !ok {106				return107			}108			// Second error109			eErr := err.(*ctxerr.Error).Next110			ok = t.Run("Second error",111				func(t *testing.T) {112					if eErr == nil {113						t.Errorf("A second Error should have occurred")114						return115					}116					if !matchError(t, eErr,117						expectedError{118							Message:  mustBe("values differ"),119							Path:     mustBe("DATA[2]"),120							Got:      mustBe("3"),121							Expected: mustBe("43"),122						}, false) {123						return124					}125				})126			if !ok {127				return128			}129			// Third error130			eErr = eErr.Next131			t.Run("Third error",132				func(t *testing.T) {133					if eErr == nil {134						t.Errorf("A third Error should have occurred")135						return136					}137					if !matchError(t, eErr,138						expectedError{139							Message:  mustBe("values differ"),140							Path:     mustBe("DATA[3]"),141							Got:      mustBe("4"),142							Expected: mustBe("44"),143						}, false) {144						return145					}146					if eErr.Next != nil {147						t.Errorf("Only 3 Errors should have occurred")148						return149					}150				})151		})...td_code_test.go
Source:td_code_test.go  
...266		}267		if !strings.HasPrefix(expected.(fmt.Stringer).String(), "Code") {268			expErr = ifaceExpectedError(t, expErr)269		}270		if !matchError(t, err.(*ctxerr.Error), expErr, true, args...) {271			return false272		}273		if td.EqDeeply(got, expected) {274			t.Error(`Boolean context succeeded and it shouldn't`)275			return false276		}277		return true278	}279	customCheckOK(t, _customCheckOK, 123, td.Code(func(t *td.T, n int) {280		t.Cmp(t.Config.FailureIsFatal, false)281		t.Cmp(n, 123)282	}))283	customCheckOK(t, _customCheckOK, 123, td.Code(func(assert, require *td.T, n int) {284		assert.Cmp(assert.Config.FailureIsFatal, false)...check_test.go
Source:check_test.go  
...109		return false110	}111	return true112}113func matchError(t *testing.T, err *ctxerr.Error, expectedError expectedError,114	expectedIsTestDeep bool, args ...any,115) bool {116	t.Helper()117	if !cmpErrorStr(t, err, err.Message, expectedError.Message,118		"Message", args...) {119		return false120	}121	if !cmpErrorStr(t, err, err.Context.Path.String(), expectedError.Path,122		"Context.Path", args...) {123		return false124	}125	if !cmpErrorStr(t, err, err.GotString(), expectedError.Got, "Got", args...) {126		return false127	}128	if !cmpErrorStr(t, err,129		err.ExpectedString(), expectedError.Expected, "Expected", args...) {130		return false131	}132	if !cmpErrorStr(t, err,133		err.SummaryString(), expectedError.Summary, "Summary", args...) {134		return false135	}136	// If expected is a TestDeep, the Location should be set137	if expectedIsTestDeep {138		expectedError.Located = true139	}140	if expectedError.Located != err.Location.IsInitialized() {141		t.Errorf(`%sLocation of the origin of the error142	     got: %v143	expected: %v`,144			tdutil.BuildTestName(args...), err.Location.IsInitialized(), expectedError.Located)145		return false146	}147	if expectedError.Located &&148		!strings.HasSuffix(err.Location.File, "_test.go") {149		t.Errorf(`%sFile of the origin of the error150	     got: line %d of %s151	expected: *_test.go`,152			tdutil.BuildTestName(args...), err.Location.Line, err.Location.File)153		return false154	}155	if expectedError.Origin != nil {156		if err.Origin == nil {157			t.Errorf(`%sError should originate from another Error`,158				tdutil.BuildTestName(args...))159			return false160		}161		return matchError(t, err.Origin, *expectedError.Origin,162			expectedIsTestDeep, args...)163	}164	if err.Origin != nil {165		t.Errorf(`%sError should NOT originate from another Error`,166			tdutil.BuildTestName(args...))167		return false168	}169	return true170}171func _checkError(t *testing.T, got, expected any,172	expectedError expectedError, args ...any,173) bool {174	t.Helper()175	err := td.EqDeeplyError(got, expected)176	if err == nil {177		t.Errorf("%sAn Error should have occurred", tdutil.BuildTestName(args...))178		return false179	}180	_, expectedIsTestDeep := expected.(td.TestDeep)181	if !matchError(t, err.(*ctxerr.Error), expectedError, expectedIsTestDeep, args...) {182		return false183	}184	if td.EqDeeply(got, expected) {185		t.Errorf(`%sBoolean context failed186	     got: true187	expected: false`, tdutil.BuildTestName(args...))188		return false189	}190	return true191}192func ifaceExpectedError(t *testing.T, expectedError expectedError) expectedError {193	t.Helper()194	if !strings.Contains(expectedError.Path.Exact, "DATA") {195		return expectedError...matchError
Using AI Code Generation
1import (2func main() {3	td1 = td.NewTd(1, 2, 3)4	err := td1.MatchError()5	if err != nil {6		fmt.Println(err)7	} else {8		fmt.Println("No Error")9	}10}matchError
Using AI Code Generation
1import "fmt"2import "testing"3import "time"4func main() {5    fmt.Println("Hello, playground")6    t := &testing.T{}7    t.Log("This is a log message")8    t.Error("This is an error message")9    t.Fail()10    t.FailNow()11    t.Fatal("This is a fatal error messamatchError
Using AI Code Generation
1import (2func main() {3	err = t.MatchError(0, nil)4	fmt.Println(err)5	err = t.MatchError(1, nil)6	fmt.Println(err)7	err = t.MatchError(2, nil)8	fmt.Println(err)9	err = t.MatchError(3, nil)10	fmt.Println(err)11	err = t.MatchError(4, nil)12	fmt.Println(err)13	err = t.MatchError(5, nil)14	fmt.Println(err)15	err = t.MatchError(6, nil)16	fmt.Println(err)17	err = t.MatchError(7, nil)18	fmt.Println(err)19	err = t.MatchError(8, nil)20	fmt.Println(err)21	err = t.MatchError(9, nil)22	fmt.Println(err)23	err = t.MatchError(10, nil)24	fmt.Println(err)25	err = t.MatchError(11, nil)26	fmt.Println(err)27	err = t.MatchError(12, nil)28	fmt.Println(err)29	err = t.MatchError(13, nil)30	fmt.Println(err)31	err = t.MatchError(14, nil)32	fmt.Println(err)33	err = t.MatchError(15, nil)34	fmt.Println(err)35	err = t.MatchError(16, nil)36	fmt.Println(err)37	err = t.MatchError(17, nil)38	fmt.Println(err)39	err = t.MatchError(18, nil)40	fmt.Println(err)41	err = t.MatchError(19, nil)42	fmt.Println(err)43	err = t.MatchError(20, nil)44	fmt.Println(err)45	err = t.MatchError(21, nil)46	fmt.Println(err)47	err = t.MatchError(22, nil)48	fmt.Println(err)49	err = t.MatchError(23, nil)50	fmt.Println(err)51	err = t.MatchError(24, nil)52	fmt.Println(err)53	err = t.MatchError(25, nil)54	fmt.Println(err)55	err = t.MatchError(26, nil)56	fmt.Println(err)57	err = t.MatchError(27, nil)58	fmt.Println(err)59	err = t.MatchError(28, nil)60	fmt.Println(err)61	err = t.MatchError(29, nil)62	fmt.Println(err)63	err = t.MatchError(30, nil)64	fmt.Println(err)65	err = t.MatchError(31, nil)66	fmt.Println(err)67	err = t.MatchError(32, nil)68	fmt.Println(err)69	err = t.MatchError(matchError
Using AI Code Generation
1import (2func main() {3	fmt.Println("Path 2")4	fmt.Println("Test 1")5	fmt.Println(td_test.MatchError("a", "a"))6	fmt.Println("Test 2")7	fmt.Println(td_test.MatchError("a", "b"))8	fmt.Println("Test 3")9	fmt.Println(td_test.MatchError("a", "c"))10	fmt.Println("Test 4")11	fmt.Println(td_test.MatchError("a", "d"))12	fmt.Println("Test 5")13	fmt.Println(td_test.MatchError("a", "e"))14	fmt.Println("Test 6")15	fmt.Println(td_test.MatchError("a", "f"))16	fmt.Println("Test 7")17	fmt.Println(td_test.MatchError("a", "g"))18	fmt.Println("Test 8")19	fmt.Println(td_test.MatchError("a", "h"))20	fmt.Println("Test 9")21	fmt.Println(td_test.MatchError("a", "i"))22	fmt.Println("Test 10")23	fmt.Println(td_test.MatchError("a", "j"))24	fmt.Println("Test 11")25	fmt.Println(td_test.MatchError("a", "k"))26	fmt.Println("Test 12")27	fmt.Println(td_test.MatchError("a", "l"))28	fmt.Println("Test 13")29	fmt.Println(td_test.MatchError("a", "m"))30	fmt.Println("Test 14")31	fmt.Println(td_test.MatchError("a", "n"))32	fmt.Println("Test 15")33	fmt.Println(td_test.MatchError("a", "o"))34	fmt.Println("Test 16")35	fmt.Println(td_test.MatchError("a", "p"))36	fmt.Println("Test 17")37	fmt.Println(td_test.MatchError("a", "q"))38	fmt.Println("Test 18")39	fmt.Println(td_test.MatchError("a", "r"))40	fmt.Println("Test 19")41	fmt.Println(td_test.MatchError("a", "s"))42	fmt.Println("Test 20")43	fmt.Println(td_test.MatchError("a", "t"))44	fmt.Println("Test 21")45	fmt.Println(td_test.MatchError("a", "u"))46	fmt.Println("Test 22")47	fmt.Println(td_test.MatchError("a", "v"))48	fmt.Println("Test 23")49	fmt.Println(td_test.MatchError("a", "w"))50	fmt.Println("Test 24")51	fmt.Println(td_test.MatchError("a", "x"))52	fmt.Println("TestmatchError
Using AI Code Generation
1import (2func main() {3	fmt.Println("testdriver.MatchError() test")4	fmt.Println("Testing matchError method")5	err := testdriver.MatchError("test", "test")6	fmt.Println("Error: ", err)7	err = testdriver.MatchError("test", "test1")8	fmt.Println("Error: ", err)9	err = testdriver.MatchError("test", "test1", "test2")10	fmt.Println("Error: ", err)11	err = testdriver.MatchError("test", "test1", "test")12	fmt.Println("Error: ", err)13	err = testdriver.MatchError("test", "test1", "test2", "test3")14	fmt.Println("Error: ", err)15	err = testdriver.MatchError("test", "test1", "test2", "test3", "test")16	fmt.Println("Error: ", err)17	err = testdriver.MatchError("test", "test1", "test2", "test3", "test4", "test5", "test6")18	fmt.Println("Error: ", err)19	err = testdriver.MatchError("test", "test1", "test2", "test3", "test4", "test5", "test6", "test")20	fmt.Println("Error: ", err)21	err = testdriver.MatchError("test", "test1", "test2", "test3", "test4", "test5", "test6", "test7", "test8")22	fmt.Println("Error: ", err)23	err = testdriver.MatchError("test", "test1", "test2", "test3", "test4", "test5", "test6", "test7", "test8", "test")24	fmt.Println("Error: ", err)25	err = testdriver.MatchError("test", "test1", "test2", "test3", "test4", "test5", "test6", "test7", "test8", "test9", "test10")26	fmt.Println("Error: ", err)27	err = testdriver.MatchError("test", "test1", "test2", "test3", "test4", "test5", "test6", "test7", "test8", "test9", "test10", "test")28	fmt.Println("Error: ", err)matchError
Using AI Code Generation
1import (2func main() {3	e := td_test.New("Test")4	e.MatchError("Test")5	fmt.Println("No error")6}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.
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Get 100 minutes of automation test minutes FREE!!
