Updated readme with linters and Optional method + removed FailNow from MinimockFinish + fixed tests

Makefile

@@ -7,6 +7,7 @@ all: install test lint
 generate:
 	go run ./cmd/minimock/minimock.go -i github.com/gojuno/minimock/v3.Tester -o ./tests
 	go run ./cmd/minimock/minimock.go -i ./tests.Formatter -o ./tests/formatter_mock.go
+	go run ./cmd/minimock/minimock.go -i ./tests.Formatter -o ./tests/formatter_with_custom_name_mock.go -n CustomFormatterNameMock
 	go run ./cmd/minimock/minimock.go -i ./tests.genericInout -o ./tests/generic_inout.go
 	go run ./cmd/minimock/minimock.go -i ./tests.genericOut -o ./tests/generic_out.go
 	go run ./cmd/minimock/minimock.go -i ./tests.genericIn -o ./tests/generic_in.go

README.md

@@ -16,7 +16,7 @@ The main features of minimock are:
 * It supports generics.
 * It works well with [table driven tests](https://dave.cheney.net/2013/06/09/writing-table-driven-tests-in-go) because you can set up mocks for several methods in one line of code using the builder pattern.
 * It can generate several mocks in one run.
-* It generates code that passes [gometalinter](https://github.com/alecthomas/gometalinter) checks.
+* It generates code that passes default set of [golangci-lint](https://github.com/golangci/golangci-lint) checks.
 * It puts //go:generate instruction into the generated code, so all you need to do when the source interface is updated is to run the `go generate ./...` command from within the project's directory.
 * It makes sure that all mocked methods have been called during the test and keeps your test code clean and up to date.
 * It provides When and Then helpers to set up several expectations and results for any method.
@@ -179,6 +179,16 @@ mc := minimock.NewController(t)
 formatterMock := NewFormatterMock(mc).FormatMock.Times(10).Expect("hello %s!", "world").Return("hello world!")
 ```
 
+There are also cases, when you don't know for sure if the mocking method would be called or not. 
+But you still want to mock it, if it will be called. This is where "Optional" option comes into play:
+
+```go
+mc := minimock.NewController(t)
+formatterMock := NewFormatterMock(mc).FormatMock.Optional().Expect("hello %s!", "world").Return("hello world!")
+```
+
+When this option is set, it disables checking the call of mocking method. 
+
 ### Mocking context
 Sometimes context gets modified by the time the mocked method is being called.
 However, in most cases you don't really care about the exact value of the context argument.

mock_controller.go

@@ -17,7 +17,6 @@ type Tester interface {
 	Fatalf(format string, args ...interface{})
 	Error(...interface{})
 	Errorf(format string, args ...interface{})
-	FailNow()
 	Cleanup(f func())
 }
 

mock_controller_test.go

@@ -73,7 +73,7 @@ type unsafeMocker struct {
 }
 
 func (um *unsafeMocker) MinimockWait(time.Duration) {
-	um.tester.FailNow()
+	um.tester.Fatal()
 }
 
 type unsafeTester struct {
@@ -82,6 +82,6 @@ type unsafeTester struct {
 	finished bool
 }
 
-func (u *unsafeTester) FailNow() {
+func (u *unsafeTester) Fatal(...interface{}) {
 	u.finished = true
 }

safe_tester.go

@@ -42,11 +42,3 @@ func (st *safeTester) Fatalf(format string, args ...interface{}) {
 
 	st.Tester.Fatalf(format, args...)
 }
-
-// FailNow implements Tester
-func (st *safeTester) FailNow() {
-	st.m.Lock()
-	defer st.m.Unlock()
-
-	st.Tester.FailNow()
-}

template.go

@@ -104,7 +104,7 @@ const (
 			// Marks this method to be optional. The default behavior of any method with Return() is '1 or more', meaning
 			// the test will fail minimock's automatic final call check if the mocked method was not called at least once.
 			// Optional() makes method check to work in '0 or more' mode.
-			// It is NOT RECOMMENDED to use this option by default unless you really need it, as it helps to
+			// It is NOT RECOMMENDED to use this option unless you really need it, as default behaviour helps to
 			// catch the problems when the expected method call is totally skipped during test run.
 			func ({{$m}} *m{{$mock}}{{$method.Name}}{{(paramsRef)}}) Optional() *m{{$mock}}{{$method.Name}}{{(paramsRef)}} {
 				{{$m}}.optional = true
@@ -386,7 +386,6 @@ const (
 					{{- range $method := $.Interface.Methods }}
 						m.Minimock{{$method.Name}}Inspect()
 					{{ end -}}
-					m.t.FailNow()
 				}
 			})
 		}

tests/actor_mock_test.go

@@ -83,3 +83,12 @@ func TestActorMock_FailedToUseExpectParamsAfterSet(t *testing.T) {
 		return
 	}).ActionMock.ExpectFirstParamParam1("abc").Return(1, nil)
 }
+
+func TestActorMock_Optional(t *testing.T) {
+	tester := NewTesterMock(t)
+	tester.CleanupMock.Return()
+
+	mock := NewActorMock(tester).ActionMock.Optional().Return(1, nil)
+
+	mock.MinimockFinish()
+}

tests/context_accepter_mock_test.go

@@ -139,8 +139,7 @@ func TestContextAccepterMock_TimesFailure(t *testing.T) {
 	tester := NewTesterMock(t)
 	tester.CleanupMock.Return().
 		ErrorfMock.Expect("Expected %d calls to ContextAccepterMock.AcceptContextWithStructArgs but found %d calls", uint64(1), uint64(2)).
-		Return().
-		FailNowMock.Return()
+		Return()
 
 	// Expected 1 calls to ContextAccepterMock.AcceptContextWithStructArgs but found 2 calls
 	mock := NewContextAccepterMock(tester).
@@ -183,8 +182,7 @@ func TestContextAccepterMock_ExpectedCall(t *testing.T) {
 	tester := NewTesterMock(t)
 	tester.CleanupMock.Times(1).Return().
 		ErrorMock.Expect("Expected call to ContextAccepterMock.AcceptContext").Times(1).
-		Return().
-		FailNowMock.Times(1).Return()
+		Return()
 
 	mock := NewContextAccepterMock(tester).AcceptContextMock.Return()
 

tests/formatter_mock_test.go

@@ -26,7 +26,6 @@ func TestFormatterMock_CleanupIsCalled(t *testing.T) {
 	tester := NewTesterMock(t)
 	tester.CleanupMock.Set(t.Cleanup)
 	tester.ErrorMock.Expect("Expected call to FormatterMock.Format").Return()
-	tester.FailNowMock.Return()
 
 	NewFormatterMock(tester).FormatMock.Return("")
 }
@@ -154,7 +153,6 @@ func TestFormatterMock_ReturnWithoutExpectForFixedArgsMethod(t *testing.T) {
 	tester := NewTesterMock(t).CleanupMock.Return()
 
 	tester.ErrorMock.Expect("Expected call to FormatterMock.Format")
-	tester.FailNowMock.Expect()
 
 	formatterMock := NewFormatterMock(tester)
 	formatterMock.FormatMock.Return("")
@@ -232,7 +230,6 @@ func TestFormatterMock_MinimockFinish(t *testing.T) {
 	tester := NewTesterMock(t).CleanupMock.Return()
 
 	tester.ErrorMock.Expect("Expected call to FormatterMock.Format").Return()
-	tester.FailNowMock.Expect().Return()
 
 	formatterMock := NewFormatterMock(tester)
 	formatterMock.FormatMock.Set(func(string, ...interface{}) string { return "" })
@@ -246,7 +243,6 @@ func TestFormatterMock_MinimockFinish_WithNoMetExpectations(t *testing.T) {
 	tester.ErrorfMock.Set(func(m string, args ...interface{}) {
 		assert.Equal(t, m, "Expected call to FormatterMock.Format with params: %#v")
 	})
-	tester.FailNowMock.Expect().Return()
 
 	formatterMock := NewFormatterMock(tester)
 	formatterMock.FormatMock.Expect("a").Return("a")
@@ -259,7 +255,6 @@ func TestFormatterMock_MinimockWait(t *testing.T) {
 	tester := NewTesterMock(t).CleanupMock.Return()
 
 	tester.ErrorMock.Expect("Expected call to FormatterMock.Format").Return()
-	tester.FailNowMock.Expect().Return()
 
 	formatterMock := NewFormatterMock(tester)
 	formatterMock.FormatMock.Set(func(string, ...interface{}) string { return "" })