✨ Add errors.Errorf

errorf_test.go

@@ -0,0 +1,71 @@
+package errors
+
+import (
+	"errors"
+	"net/http"
+	"testing"
+
+	"github.com/stretchr/testify/suite"
+)
+
+func TestErrorf(t *testing.T) {
+	suite.Run(t, new(ErrorfTestSuite))
+}
+
+type ErrorfTestSuite struct {
+	suite.Suite
+}
+
+func (s *ErrorfTestSuite) TestNoWrap() {
+	var err ResponsableError = Errorf(http.StatusTeapot, "%d is more than %d", 42, 13)
+	s.Assert().NotNil(err)
+
+	_, ok := err.(UnwrappableError)
+	s.Assert().False(ok)
+
+	_, ok = err.(UnwrappableErrors)
+	s.Assert().False(ok)
+
+	exp := "42 is more than 13"
+	s.Assert().Equal(exp, err.Error())
+	s.Assert().Equal(exp, err.Msg())
+	s.Assert().Equal(http.StatusTeapot, err.Status())
+}
+
+func (s *ErrorfTestSuite) TestWrapOne() {
+	var wrapped error = errors.New("Here is my handle.")
+	var err ResponsableError = Errorf(http.StatusTeapot, "I'm a little teapot. %w", wrapped)
+	s.Assert().NotNil(err)
+
+	we, ok := err.(UnwrappableError)
+	s.Assert().True(ok)
+
+	_, ok = err.(UnwrappableErrors)
+	s.Assert().False(ok)
+
+	exp := "I'm a little teapot. Here is my handle."
+	s.Assert().Equal(exp, we.Error())
+	s.Assert().Equal(exp, we.Msg())
+	s.Assert().Same(wrapped, we.Unwrap())
+}
+
+func (s *ErrorfTestSuite) TestWrapTwo() {
+	var wrappedOne error = errors.New("short and stout")
+	var wrappedTwo error = errors.New("Here is my handle.")
+	var err ResponsableError = Errorf(http.StatusTeapot, "I'm a little teapot: %w. %w", wrappedOne, wrappedTwo)
+	s.Assert().NotNil(err)
+
+	_, ok := err.(UnwrappableError)
+	s.Assert().False(ok)
+
+	we, ok := err.(UnwrappableErrors)
+	s.Assert().True(ok)
+
+	exp := "I'm a little teapot: short and stout. Here is my handle."
+	s.Assert().Equal(exp, we.Error())
+	s.Assert().Equal(exp, we.Msg())
+	unwrapped := we.Unwrap()
+	s.Assert().Len(unwrapped, 2)
+	s.Assert().Same(wrappedOne, unwrapped[0])
+	s.Assert().Same(wrappedTwo, unwrapped[1])
+}