Learn how to write a trivial NUnit unit test and execute it in NCrunch.
- [Instructor] I'm just going to comment out this open for now,…because that's a thing that shouldn't exist.…And we're going to think about how we're going to write tests.…A common way of doing this is to declare a type,…and you might remember from the previous module,…that you can just give a type a class name.…So it could be something like that.…But that's not very useful for testing.…It would be quite nice if we could name our test…in English, and you certainly can.…You just surround any identifier in F# with backticks,…and then you can use spaces in the names and stuff.…
Every type declaration of this kind needs…some constructive parameters, even if that's an empty list.…And then we say equals, and then the individual tests…are going to be methods within that type.…So as always, with NUnit, we've put an attribute on them…called Test, then you declare the member of a class type…in F# with member, this. and then we need a name…for the test. And once again,…backticks and you can have a whole sentence.…
Now I'm not construvating at all on the actual functionality…
Author
Released
12/20/2016- Defining values and calling functions in F#
- Defining and identifying discriminated unions
- Working with if-else expressions
- Writing unit test
- Using type providers to access data
- Analyzing data with collection functions
- Plotting data using the R type provider
- Using railway-oriented programming to handle errors
- Integrating with Twitter
- Deploying an F# application to Azure
Skill Level Intermediate
Duration
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Introduction
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Welcome59s
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Exercise files41s
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1. Get Started with F#
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Record type and arrays2m 35s
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Forward piping3m 39s
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Array mapping and iteration6m 22s
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If-else expressions2m 9s
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Exception handling2m 40s
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Option types5m 9s
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The bot and type signatures4m 19s
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2. Build a Simple Parser with Unit Testing
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Install NUnit4m 23s
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Write a real test4m 31s
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Write a parser5m 8s
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Refactor tests5m 18s
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Test unhappy paths4m 1s
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Challenge35s
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Solution3m 38s
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3. Use F# CSV Type Provider to Get Data
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Recap and code tidy-up1m 51s
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Introducing Quandl1m 52s
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Challenge1m 14s
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Solution9m 34s
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4. Analyze Data with F# Collection Functions
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5. Use RStats Provider and ggplot2 to Plot Data
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RStats and ggplot21m 38s
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Develop the chart generator5m 45s
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Challenge38s
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Solution2m 21s
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6. Use BoxKite with Twitter
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Create a Twitter application5m 24s
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React to directed tweets4m 47s
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7. Deploy a Working Bot
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Call the reply function1m 17s
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Try the bot running locally1m 53s
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Understanding ROP2m 37s
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Conclusion
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Next steps1m 46s
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Video: Write a trivial NUnit test