public void TestADFModelUpdateFromStream()
{
joinServer.Reset();
string vwArgs = "--cb_explore_adf --epsilon 0.5";
commandCenter.CreateBlobs(createSettingsBlob: true, createModelBlob: false, vwArgs: vwArgs);
var dsConfig = new DecisionServiceConfiguration(MockCommandCenter.SettingsBlobUri)
{
JoinServerType = JoinServerType.CustomSolution,
LoggingServiceAddress = MockJoinServer.MockJoinServerAddress,
PollingForModelPeriod = TimeSpan.MinValue,
PollingForSettingsPeriod = TimeSpan.MinValue
};
using (var ds = DecisionService.Create <TestADFContextWithFeatures>(dsConfig)
.ExploitUntilModelReady(new ConstantPolicy <TestADFContextWithFeatures>(ctx => ctx.ActionDependentFeatures.Count)))
{
string uniqueKey = "eventid";
for (int i = 1; i <= 100; i++)
{
Random rg = new Random(i);
if (i % 50 == 1)
{
int modelIndex = i / 50;
byte[] modelContent = commandCenter.GetCBADFModelBlobContent(numExamples: 3 + modelIndex, numFeatureVectors: 4 + modelIndex, vwDefaultArgs: vwArgs);
using (var modelStream = new MemoryStream(modelContent))
{
ds.UpdateModel(modelStream);
}
}
int numActions = rg.Next(5, 20);
var context = TestADFContextWithFeatures.CreateRandom(numActions, rg);
int[] action = ds.ChooseRanking(uniqueKey, context);
Assert.AreEqual(numActions, action.Length);
// verify all unique actions in the list
Assert.AreEqual(action.Length, action.Distinct().Count());
// verify the actions are in the expected range
Assert.AreEqual((numActions * (numActions + 1)) / 2, action.Sum(a => a));
ds.ReportReward(i / 100f, uniqueKey);
}
}
Assert.AreEqual(200, joinServer.EventBatchList.Sum(b => b.ExperimentalUnitFragments.Count));
}
public async Task TestDevModeSettingsAndExampleLog()
{
joinServer.Reset();
var testTraceListener = new TestTraceListener();
Trace.Listeners.Add(testTraceListener);
string vwArgs = "--cb_explore_adf --epsilon 0.5";
commandCenter.CreateBlobs(createSettingsBlob: true, createModelBlob: false, vwArgs: vwArgs);
var dsConfig = new DecisionServiceConfiguration(MockCommandCenter.SettingsBlobUri)
{
JoinServerType = JoinServerType.CustomSolution,
LoggingServiceAddress = MockJoinServer.MockJoinServerAddress,
PollingForModelPeriod = TimeSpan.MinValue,
PollingForSettingsPeriod = TimeSpan.MinValue,
DevelopmentMode = true
};
int numInteractionEvents = 25;
var eventIdList = new List <string>();
using (var ds = DecisionService
.Create <TestADFContextWithFeatures>(dsConfig)
// .With<TestADFContextWithFeatures, TestADFFeatures>(context => context.ActionDependentFeatures)
// TODO .WithTopSlotEpsilonGreedy(.5f)
.ExploitUntilModelReady(new ConstantPolicy <TestADFContextWithFeatures>(ctx => ctx.ActionDependentFeatures.Count)))
{
byte[] modelContent = commandCenter.GetCBADFModelBlobContent(numExamples: 5, numFeatureVectors: 10, vwDefaultArgs: vwArgs);
using (var modelStream = new MemoryStream(modelContent))
{
ds.UpdateModel(modelStream);
}
for (int i = 1; i <= numInteractionEvents; i++)
{
var interId = "inter" + i;
var obserId = "obser" + i;
Random rg = new Random(i);
int numActions = rg.Next(5, 20);
var context = TestADFContextWithFeatures.CreateRandom(numActions, rg);
int[] action = await ds.ChooseRankingAsync(interId, context);
ds.ReportReward(i / 100f, obserId);
eventIdList.Add(interId);
eventIdList.Add(obserId);
}
}
// Number of batches must be exactly equal to number of events uploaded in development mode
// and each batch must contain exactly one event
Assert.AreEqual(numInteractionEvents * 2, joinServer.EventBatchList.Count);
Assert.AreEqual(numInteractionEvents * 2, joinServer.EventBatchList.Sum(ebl => ebl.ExperimentalUnitFragments.Count));
var eblList = joinServer.EventBatchList.Select(ebl => ebl.ExperimentalUnitFragments[0].Id).OrderBy(id => id);
Assert.IsTrue(eblList.SequenceEqual(eventIdList.OrderBy(id => id)));
// Trace messages must contain context information
Assert.AreEqual(numInteractionEvents, testTraceListener.Messages.Count(m => m.Contains("Example Context")));
}