initial commit

easyerrors.go

@@ -25,5 +25,5 @@ func Join(errs ...error) error {
 }
 
 func Unwrap(err error) error {
-	return goerrors.Join(err)
+	return goerrors.Unwrap(err)
 }

easyerrors_bench_test.go

@@ -6,23 +6,23 @@ import (
 	"testing"
 )
 
-const nestedLevels = 10
+const nestedCalls = 10
 
 var err error
 
 func BenchmarkStdErrors(b *testing.B) {
 	b.ReportAllocs()
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
-		err = doStdCall(stderrors.New("foo"), nestedLevels)
+		err = doStdCall(stderrors.New("foo"), nestedCalls)
 	}
 }
 
 func BenchmarkEasyErrors(b *testing.B) {
 	b.ReportAllocs()
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
-		err = doEasyCall(New("foo"), nestedLevels)
+		err = doEasyCall(New("foo"), nestedCalls)
 	}
 }
 

easyerrors_test.go

@@ -0,0 +1,54 @@
+package easyerrors
+
+import "testing"
+import "github.com/stretchr/testify/require"
+
+//goland:noinspection GoPrintFunctions
+func TestAs(t *testing.T) {
+	type fooable interface {
+		Foo()
+	}
+
+	err := Errorf("bar: %w", errFoo{})
+
+	var errHello fooable
+	require.True(t, As(err, &errHello))
+	require.False(t, As(New("bar"), &errHello))
+}
+
+//goland:noinspection GoDfaNilDereference,GoPrintFunctions
+func TestErrorf(t *testing.T) {
+	err := New("foo")
+	err = Errorf("bar: %w", err)
+	require.Equal(t, "bar: foo", err.Error())
+}
+
+//goland:noinspection GoPrintFunctions
+func TestIs(t *testing.T) {
+	var errFoo = New("foo")
+	err := Errorf("bar: %w", errFoo)
+	require.True(t, Is(err, errFoo))
+	require.False(t, Is(New("baz"), errFoo))
+}
+
+func TestJoin(t *testing.T) {
+	require.Equal(t, "foo\nbar", Join(New("foo"), New("bar")).Error())
+}
+
+func TestNew(t *testing.T) {
+	require.Equal(t, "foo", New("foo").Error())
+}
+
+//goland:noinspection GoPrintFunctions
+func TestUnwrap(t *testing.T) {
+	err = Errorf("bar: %w", New("foo"))
+	err = Unwrap(err)
+	err = Unwrap(err)
+	require.Equal(t, "foo", err.Error())
+}
+
+type errFoo struct{}
+
+func (e errFoo) Foo() {}
+
+func (e errFoo) Error() string { return "foo" }

go.mod

@@ -2,4 +2,13 @@ module github.com/pprishchepa/easyerrors
 
 go 1.22.5
 
-require github.com/go-errors/errors v1.5.1
+require (
+	github.com/go-errors/errors v1.5.1
+	github.com/stretchr/testify v1.9.0
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

go.sum

@@ -1,2 +1,12 @@
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/go-errors/errors v1.5.1 h1:ZwEMSLRCapFLflTpT7NKaAc7ukJ8ZPEjzlxt8rPN8bk=
 github.com/go-errors/errors v1.5.1/go.mod h1:sIVyrIiJhuEF+Pj9Ebtd6P/rEYROXFi3BopGUQ5a5Og=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
+github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=