> On 21 Oct 2020, at 8:31 am, roger peppe <rogpe...@gmail.com> wrote: > > It looks like you're testing a top level command. You might want to consider > using the testscript package, which provides a very concise way of end-to-end > testing this kind of thing. > > e.g. > > mycommand -h > cmp stdout expect-stdout > > -- expect-stdout -- > Expected output > > See https://pkg.go.dev/github.com/rogpeppe/go-internal/testscript > <https://pkg.go.dev/github.com/rogpeppe/go-internal/testscript> for more > details.
This looks interesting, thank you. I will have a look. > > On Tue, 20 Oct 2020 at 05:02, Amit Saha <amitsaha...@gmail.com > <mailto:amitsaha...@gmail.com>> wrote: > Hi all, Consider the following test configuration: > > > func TestHandleCommand(t *testing.T) { > > type expectedResult struct { > output string > err error > } > type testConfig struct { > args []string > result expectedResult > } > > testConfigs := []testConfig{ > testConfig{ > args: []string{"-h"}, > result: expectedResult{ > err: nil, > output: `Expected output`, > }, > }, > } > > Then, I do this: > > > for _, tc := range testConfigs { > byteBuf := new(bytes.Buffer) > w := bufio.NewWriter(byteBuf) > > err := handleCommand(w, tc.args) > if tc.result.err == nil && err != nil { > t.Errorf("Expected nil error, got %v", err) > } > > if tc.result.err != nil && err.Error() != tc.result.err.Error() { > t.Errorf("Expected error %v, got %v", tc.result.err, err) > } > > if len(tc.result.output) != 0 { > w.Flush() > gotOutput := byteBuf.String() > if tc.result.output != gotOutput { > t.Errorf("Expected output to be: %v, Got: %v", > tc.result.output, gotOutput) > } > } > } > } > > The above pattern works for me since the function may return an error > and/or it may have something it writes to the provided writer, w. > > Is there a more concise way to write this? > > > > Thanks, > Amit. > > -- > You received this message because you are subscribed to the Google Groups > "golang-nuts" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to golang-nuts+unsubscr...@googlegroups.com > <mailto:golang-nuts%2bunsubscr...@googlegroups.com>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/golang-nuts/CANODV3%3DsOA4FKakaQ0mrcC%3D-BnVNq8SdnvDHgXShmrRt-_upHw%40mail.gmail.com > > <https://groups.google.com/d/msgid/golang-nuts/CANODV3%3DsOA4FKakaQ0mrcC%3D-BnVNq8SdnvDHgXShmrRt-_upHw%40mail.gmail.com>. -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/385C8396-3EFB-4895-908A-EC430F1A6186%40gmail.com.
