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Code Issues Releases Activity

Errors (#2290)

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* add errors.As

convert target err to *Error, return false if err don't match *Error

* update errors.As to (*Error, bool)

* fixing FromError panic issue when err is nil
This commit is contained in:
Johnson C
2021-09-30 14:45:10 +08:00
committed by GitHub
parent 4612baa7f8
commit 6dc25053ea
2 changed files with 40 additions and 1 deletions
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25
errors/errors_test.go
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@@ -17,7 +17,10 @@ func TestFromError(t *testing.T) {
if merr.Id != "go.micro.test" || merr.Code != 404 {
t.Fatalf("invalid conversation %v != %v", err, merr)
}
merr = FromError(nil)
if merr != nil {
t.Fatalf("%v should be nil", merr)
}
}
func TestEqual(t *testing.T) {
@@ -75,3 +78,23 @@ func TestErrors(t *testing.T) {
}
}
}
func TestAs(t *testing.T) {
err := NotFound("go.micro.test", "%s", "example")
merr, match := As(err)
if !match {
t.Fatalf("%v should convert to *Error", err)
}
if merr.Id != "go.micro.test" || merr.Code != 404 || merr.Detail != "example" {
t.Fatalf("invalid conversation %v != %v", err, merr)
}
err = er.New(err.Error())
merr, match = As(err)
if match || merr != nil {
t.Fatalf("%v should not convert to *Error", err)
}
merr, match = As(nil)
if match || merr != nil {
t.Fatalf("nil should not convert to *Error")
}
}