fix: ensure experiments return nil when we want to submit (#654)

Since https://github.com/ooni/probe-cli/pull/527, if an experiment
returns an error, the corresponding measurement is not submitted since
the semantics of returning an error is that something fundamental
went wrong (e.g., we could not parse the input URL).

This diff ensures that all experiments only return and error when
something fundamental was wrong and return nil otherwise.

Reference issue: https://github.com/ooni/probe/issues/1808.
This commit is contained in:
Simone Basso 2022-01-07 13:17:20 +01:00 committed by GitHub
commit 99ec7ffca9
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27 changed files with 132 additions and 66 deletions

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@ -261,7 +261,7 @@ func TestNewExperimentMeasurer(t *testing.T) {
if measurer.ExperimentName() != "dash" {
t.Fatal("unexpected name")
}
if measurer.ExperimentVersion() != "0.12.0" {
if measurer.ExperimentVersion() != "0.13.0" {
t.Fatal("unexpected version")
}
}
@ -280,7 +280,9 @@ func TestMeasureWithCancelledContext(t *testing.T) {
measurement,
model.NewPrinterCallbacks(log.Log),
)
if !errors.Is(err, context.Canceled) {
// See corresponding comment in Measurer.Run implementation to
// understand why here it's correct to return nil.
if !errors.Is(err, nil) {
t.Fatal("unexpected error value")
}
sk, err := m.GetSummaryKeys(measurement)