safe exact matching

docs/sponsors.md

@@ -0,0 +1,8 @@
+# Sponsors list
+
+Thanks to all the people who supported this project by donating money, 
+time or resources:
+
+* [Ovechkin Dmitry](https://github.com/ovechkin-dm)
+* [Eray Ates](https://github.com/rytsh)
+* [Emilien Puget](https://github.com/emilien-puget)

mkdocs.yml

@@ -61,6 +61,7 @@ nav:
       - Parallel execution: features/parallel-execution.md
       - Error reporting: features/error-reporting.md
   - Limitations: limitations.md
+  - Sponsors: sponsors.md
 
 extra_css:
   - stylesheets/extra.css

mock/api.go

@@ -286,6 +286,17 @@ func SliceEqualUnordered[T any](values []T) []T {
 func Exact[T comparable](value T) T {
 	desc := fmt.Sprintf("Exact(%v)", value)
 	m := registry.FunMatcher(desc, func(m []any, actual T) bool {
+		vrv := reflect.ValueOf(value)
+		arv := reflect.ValueOf(actual)
+		if vrv.Kind() == reflect.Struct && arv.Kind() == reflect.Struct {
+			return vrv == arv
+		}
+		if !vrv.Comparable() {
+			return false
+		}
+		if !arv.Comparable() {
+			return false
+		}
 		return value == actual
 	})
 	registry.AddMatcher(m)

tests/match/match_test.go

@@ -12,6 +12,10 @@ type Iface interface {
 	Test(i interface{}) bool
 }
 
+type Greeter interface {
+	Greet(name any) string
+}
+
 type St struct {
 	value int
 }
@@ -320,3 +324,11 @@ func TestUnexpectedUseOfMatchers(t *testing.T) {
 	Verify(m, Once()).Test("test")
 	r.AssertErrorContains(r.GetError(), "Unexpected matchers declaration")
 }
+
+func TestExactNotComparable(t *testing.T) {
+	SetUp(t)
+	greeter := Mock[Greeter]()
+	var data any = []int{1, 2}
+	When(greeter.Greet(Exact(data))).ThenReturn("hello world")
+	greeter.Greet(data)
+}

tests/mocking/mock_test.go

@@ -49,9 +49,9 @@ func TestMockWithMockedArg(t *testing.T) {
 	SetUp(r)
 	callingMock := Mock[CallingIface]()
 	otherMock := Mock[OtherIface]()
-	WhenSingle(callingMock.GetMocked(Exact[OtherIface](otherMock))).ThenReturn(otherMock)
+	WhenSingle(callingMock.GetMocked(Exact(otherMock))).ThenReturn(otherMock)
 	res := callingMock.GetMocked(otherMock)
-	Verify(callingMock, Times(1)).GetMocked(Exact[OtherIface](otherMock))
+	Verify(callingMock, Times(1)).GetMocked(Exact(otherMock))
 	VerifyNoMoreInteractions(callingMock)
 	r.AssertEqual(otherMock, res)
 	r.AssertNoError()