func TestWrapper(t *testing.T) {
Convey("it should return the original error message when calling .Error()", t, func() {
original := errors.New("testing")
err := werr.Wrap(original)
So(err.Error(), ShouldEqual, original.Error())
})
Convey("it should return the formatted log when calling .Log()", t, func() {
original := errors.New("testing")
err := werr.Wrap(original)
wrapped, ok := err.(*werr.Wrapper)
So(ok, ShouldBeTrue)
log, err := wrapped.Log()
So(err, ShouldBeNil)
So(log, ShouldContainSubstring, "werr/funcs_test.go:59 testing\ngoroutine")
})
}
func TestVars(t *testing.T) {
Convey("it should be possible to change the stack buffer size", t, func() {
originalSize := werr.StackArraySize
werr.StackArraySize = originalSize * 2
original := errors.New("testing")
err := werr.Wrap(original)
wrapped, ok := err.(*werr.Wrapper)
So(ok, ShouldBeTrue)
So(len(wrapped.Stack), ShouldEqual, originalSize*2)
})
Convey("it should be possible to change the log format string", t, func() {
werr.LogLine = "{{.File}}@{{.Line}}"
original := errors.New("testing")
err := werr.Wrap(original)
wrapped, ok := err.(*werr.Wrapper)
So(ok, ShouldBeTrue)
log, err := wrapped.Log()
So(err, ShouldBeNil)
So(log, ShouldEndWith, "werr/funcs_test.go@81")
})
}
func TestWrap(t *testing.T) {
Convey("it should not wrap nil value", t, func() {
err := werr.Wrap(nil)
So(err, ShouldBeNil)
})
Convey("it should wrap an error", t, func() {
original := errors.New("testing")
err := werr.Wrap(original)
we, ok := err.(*werr.Wrapper)
So(ok, ShouldBeTrue)
So(we.Original, ShouldEqual, original)
})
Convey("it should not wrap a Wrapper instance", t, func() {
original := errors.New("testing")
err := werr.Wrap(original)
err = werr.Wrap(err)
we, ok := err.(*werr.Wrapper)
So(ok, ShouldBeTrue)
So(we.Original, ShouldEqual, original)
})
}
func TestUnwrap(t *testing.T) {
Convey("it should ignore nil value", t, func() {
err := werr.Unwrap(nil)
So(err, ShouldBeNil)
})
Convey("it should return the same error if not wrapped", t, func() {
original := errors.New("testing")
err := werr.Unwrap(original)
So(err, ShouldEqual, original)
})
Convey("it should return the original error if wrapped", t, func() {
original := errors.New("testing")
err := werr.Wrap(original)
err = werr.Unwrap(err)
So(err, ShouldEqual, original)
})
}