fix(errors.Is): fix errors.Is(oopsErr, oopsErr)

Author: samber

error.go

@@ -85,6 +85,10 @@ func (o OopsError) Unwrap() error {
 // Is checks if this error matches the target error.
 // This method implements the errors.Is interface for error comparison.
 func (o OopsError) Is(err error) bool {
+	if _, ok := err.(OopsError); ok {
+		return true
+	}
+
 	return errors.Is(o.err, err)
 }
 

error_test.go

@@ -17,6 +17,9 @@ func TestErrorsIs(t *testing.T) {
 	err = Wrap(fs.ErrExist)
 	is.ErrorIs(err, fs.ErrExist)
 
+	err = Wrap(fs.ErrExist)
+	is.ErrorIs(err, err)
+
 	err = Wrapf(fs.ErrExist, "Error: %w", assert.AnError)
 	is.ErrorIs(err, fs.ErrExist)