public void ClearDatasetLabels_RetryFails(bool runAsync)
{
var evilClient = BigQueryClient.Create(_fixture.ProjectId);
var independentClient = BigQueryClient.Create(_fixture.ProjectId);
var datasetId = _fixture.LabelsDatasetId;
_fixture.SetUpLabels(new Dictionary <string, string> {
{ "label", "before" }
});
// Just before the "set-it-to-after" patch call is made, we modify the label ourselves,
// which will change the metageneration and cause a conflict response to the patch.
// We do this three times - which is why the overall result is failure.
var interceptor = new PatchFoilingInterceptor(3, count => independentClient.SetDatasetLabel(datasetId, "label", $"intercept{count}"));
evilClient.Service.HttpClient.MessageHandler.AddExecuteInterceptor(interceptor);
var options = new ModifyLabelsOptions {
Retries = 2
};
var exception = AssertThrowsMaybeAsync <GoogleApiException>(runAsync,
() => evilClient.ClearDatasetLabels(datasetId, options),
() => evilClient.ClearDatasetLabelsAsync(datasetId, options));
Assert.Equal(HttpStatusCode.PreconditionFailed, exception.HttpStatusCode);
}
public void ClearDatasetLabels_RetrySucceeds(bool runAsync)
{
var evilClient = BigQueryClient.Create(_fixture.ProjectId);
var independentClient = BigQueryClient.Create(_fixture.ProjectId);
var datasetId = _fixture.LabelsDatasetId;
_fixture.SetUpLabels(new Dictionary <string, string> {
{ "label", "before" }
});
// Just before the "set-it-to-after" patch call is made, we modify the label ourselves,
// which will change the metageneration and cause a conflict response to the patch.
// We only do this twice though - on the third time, the read/modify/write cycle will work
// - but we'll be able to tell that it *did* intercept twice, as the "old" value will be
// the one set by the final intercept.
var interceptor = new PatchFoilingInterceptor(2, count => independentClient.SetDatasetLabel(datasetId, "label", $"intercept{count}"));
evilClient.Service.HttpClient.MessageHandler.AddExecuteInterceptor(interceptor);
var options = new ModifyLabelsOptions {
Retries = 2
};
var result = RunMaybeAsync(runAsync,
() => evilClient.ClearDatasetLabels(datasetId, options),
() => evilClient.ClearDatasetLabelsAsync(datasetId, options));
Assert.Equal(new Dictionary <string, string> {
{ "label", "intercept2" }
}, result);
Assert.Null(independentClient.GetDataset(datasetId).Resource.Labels);
}
public void ClearDatasetLabels_ExplicitPreconditionFail(bool runAsync)
{
var client = BigQueryClient.Create(_fixture.ProjectId);
var datasetId = _fixture.LabelsDatasetId;
var dataset = client.GetDataset(datasetId);
var options = new ModifyLabelsOptions {
ETag = "wrong-" + dataset.Resource.ETag
};
var exception = AssertThrowsMaybeAsync <GoogleApiException>(runAsync,
() => client.ClearDatasetLabels(datasetId, options),
() => client.ClearDatasetLabelsAsync(datasetId, options));
Assert.Equal(HttpStatusCode.PreconditionFailed, exception.HttpStatusCode);
}
public void NegativeRetries()
{
var options = new ModifyLabelsOptions();
Assert.Throws <ArgumentOutOfRangeException>(() => options.Retries = -1);
}
