chore: integrate review suggestion

handler_test.go

@@ -322,5 +322,5 @@ func TestDefaultHandler_safeWrapper(t *testing.T) {
 func TestSafeFuncName(t *testing.T) {
 	assert.Equal(t, "safeFn", safeFuncName("fn"))
 	assert.Equal(t, "safeFn", safeFuncName("Fn"))
-	assert.Equal(t, "", safeFuncName(""))
+	assert.Empty(t, safeFuncName(""))
 }

internal/runtime/safecall.go

@@ -6,6 +6,8 @@ import (
 	"reflect"
 )
 
+var ErrPanicRecovery = errors.New("recovered from a panic")
+
 // SafeCall safely calls a function using reflection. It handles potential
 // panics by recovering and returning an error. The function `fn` is expected
 // to be a function, and `args` are the arguments to pass to that function.
@@ -22,7 +24,7 @@ func SafeCall(fn any, args ...any) (result any, err error) {
 	// Defer a function to handle panics
 	defer func() {
 		if r := recover(); r != nil {
-			err = fmt.Errorf("recovered from panic: %v", r)
+			err = fmt.Errorf("%w: %v", ErrPanicRecovery, r)
 		}
 	}()
 

internal/runtime/safecall_test.go

@@ -49,7 +49,8 @@ func TestSafeCall(t *testing.T) {
 	// Test a case where the function panics.
 	fn7 := func() { panic("oh no") }
 	out, err = SafeCall(fn7)
-	require.ErrorContains(t, err, "recovered from panic: oh no")
+	require.ErrorContains(t, err, "oh no")
+	require.ErrorIs(t, err, ErrPanicRecovery)
 	assert.Nil(t, out)
 
 	// Test when fn is not a function.