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framerr_test.go
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framerr_test.go
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package framerr_test
import (
"testing"
"github.com/jbowes/framerr"
"golang.org/x/xerrors"
)
type dummyErr struct {
msg string
}
func (d *dummyErr) Error() string {
return d.msg
}
func TestExtract(t *testing.T) {
tcs := []struct {
name string
in error
out []framerr.Frame
hasFrames bool
}{
{"nil err", nil, []framerr.Frame{}, false},
{"single error, no frame", &dummyErr{"test"}, []framerr.Frame{
{Text: "test"},
}, false},
{"single error, with frame", xerrors.New("test"), []framerr.Frame{
{Text: "test"},
}, true},
{"multi error", xerrors.Errorf("other: %w", xerrors.New("test")), []framerr.Frame{
{Text: "other"},
{Text: "test"},
}, true},
}
for _, tc := range tcs {
t.Run(tc.name, func(t *testing.T) {
out := framerr.Extract(tc.in)
if len(tc.out) != len(out) {
t.Fatal("bad frame. wanted:", tc.out, "got:", out)
}
for i, o := range out {
if tc.out[i].Text != o.Text {
t.Fatal("bad frame. wanted:", tc.out, "got:", out)
}
if tc.hasFrames {
if o.Source == nil {
t.Fatalf("expected stack frames")
}
if o.Source.Func != "TestExtract" || o.Source.Package != "github.com/jbowes/framerr_test" {
t.Fatal("bad stack frame detail. saw:", o.Source)
}
}
}
})
}
}