more examples
diff --git a/example_test.go b/example_test.go
index 9995902..ea82811 100644
--- a/example_test.go
+++ b/example_test.go
@@ -1,13 +1,35 @@
package errors_test
import (
- "errors"
"fmt"
+
+ "github.com/pkg/errors"
)
func ExampleNew() {
err := errors.New("whoops")
- fmt.Println(err.Error())
+ fmt.Println(err)
// Output: whoops
}
+
+func ExampleWrap() {
+ cause := errors.New("whoops")
+ err := errors.Wrap(cause, "oh noes")
+ fmt.Println(err)
+
+ // Output: oh noes: whoops
+}
+
+func fn() error {
+ return errors.Wrap(errors.Wrap(errors.Wrap(errors.New("error"), "inner"), "middle"), "outer")
+}
+
+func ExampleCause() {
+ err := fn()
+ fmt.Println(err)
+ fmt.Println(errors.Cause(err))
+
+ // Output: outer: middle: inner: error
+ // error
+}
