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CoreBot.Tests

Bot Framework v4 core bot tests sample.

This project uses the Microsoft.Bot.Builder.Testing package, XUnit and Moq to create unit tests for the CoreBot bot.

This project shows how to:

  • Create unit tests for dialogs, bots and controllers
  • Create different types of data driven tests using XUnit Theory tests
  • Create mock objects for the different dependencies of a dialog (i.e. LUIS recognizers, other dialogs, configuration, etc.)
  • Assert the activities returned by a dialog turn against expected values
  • Assert the results returned by a dialog

Overview

In this sample, dialogs are unit tested through the DialogTestClient class which provides a mechanism for testing them in isolation outside of a bot and without having to deploy your code to a web service.

This class is used to write unit tests for dialogs that test their responses on a turn-by-turn basis. Any dialog built using the botbuilder dialogs library should work.

Here is a simple example on how a test that uses DialogTestClient looks like:

var sut = new BookingDialog();
var testClient = new DialogTestClient(Channels.Msteams, sut);

var reply = await testClient.SendActivityAsync<IMessageActivity>("hi");
Assert.Equal("Where would you like to travel to?", reply.Text);

reply = await testClient.SendActivityAsync<IMessageActivity>("Seattle");
Assert.Equal("Where are you traveling from?", reply.Text);

reply = await testClient.SendActivityAsync<IMessageActivity>("New York");
Assert.Equal("When would you like to travel?", reply.Text);

reply = await testClient.SendActivityAsync<IMessageActivity>("tomorrow");
Assert.Equal("OK, I will book a flight from Seattle to New York for tomorrow, Is this Correct?", reply.Text);

reply = await testClient.SendActivityAsync<IMessageActivity>("yes");
Assert.Equal("Sure thing, wait while I finalize your reservation...", reply.Text);

reply = testClient.GetNextReply<IMessageActivity>();
Assert.Equal("All set, I have booked your flight to Seattle for tomorrow", reply.Text);

The project includes several examples on how to test different bot components:

  • CancelAndHelpDialogTests shows how to write a simple data driven test for CancelAndHelpDialog using InlineData.
  • BookingDialogTests shows how to write Theory tests using the MemberData attribute that call a helper BookingDialogTestsDataGenerator class to generate the test cases.
  • MainDialogTests showcases how to use mock objects to mock the dialog's LUIS and BookingDialog dependencies to test MainDialog in isolation.
  • DialogAndWelcomeBotTests provides an example on how to write a test for the bot's ActivityHandler using TestAdapter.

Further reading