test: Added error_packages example to test various packages

Author: kamilogorek

example/error_packages.go

@@ -0,0 +1,70 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/davecgh/go-spew/spew"
+	raven "github.com/getsentry/raven-go"
+	goErrors "github.com/go-errors/errors"
+	pingcapErrors "github.com/pingcap/errors"
+	pkgErrors "github.com/pkg/errors"
+)
+
+//==============================
+// https://github.com/pkg/errors
+//==============================
+
+func pkgBar() error {
+	return pkgErrors.New("this is bad from pkgErrors")
+}
+
+func pkgFoo() error {
+	return pkgBar()
+}
+
+//==================================
+// https://github.com/pingcap/errors
+//==================================
+
+func pingcapBar() error {
+	return pingcapErrors.New("this is bad from pingcapErrors")
+}
+
+func pingcapFoo() error {
+	return pingcapBar()
+}
+
+//====================================
+// https://github.com/go-errors/errors
+//====================================
+
+func goErrorsBar() error {
+	return goErrors.New(goErrors.Errorf("this is bad from goErrors"))
+}
+
+func goErrorsFoo() error {
+	return goErrorsBar()
+}
+
+//==============================
+
+func main() {
+	pkgErr := pkgFoo()
+	pkgStacktrace := raven.GetOrNewStacktrace(pkgErr, 0, 3, []string{})
+	spew.Dump(pkgStacktrace)
+	spew.Dump(len(pkgStacktrace.Frames))
+
+	fmt.Print("\n\n\n")
+
+	pingcapErr := pingcapFoo()
+	pingcapStacktrace := raven.GetOrNewStacktrace(pingcapErr, 0, 3, []string{})
+	spew.Dump(pingcapStacktrace)
+	spew.Dump(len(pingcapStacktrace.Frames))
+
+	fmt.Print("\n\n\n")
+
+	goErrorsErr := goErrorsFoo()
+	goErrorsStacktrace := raven.GetOrNewStacktrace(goErrorsErr, 0, 3, []string{})
+	spew.Dump(goErrorsStacktrace)
+	spew.Dump(len(goErrorsStacktrace.Frames))
+}