Writing a Test Framework from Scratch

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" summary

Builds a test framework by coding assertions first then adding equality and float checks and test isolation until a runnable suite emerges. Implements a class/method organization, a reporter that collects failures, randomizes run order to catch inter-test coupling, and outputs dots and a summarized failure list. The final microtest is about 70 lines of Ruby, factors responsibilities cleanly, and runs roughly twice as fast as minitest.

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" chapters (7)

1. 0:00Start
2. 5:24Assertion
3. 8:11Checking for Equality
4. 21:30What Happens When a Test Fails
5. 22:51Separate the Exception Handling from the Test Run
6. 30:54Add More Enhancements
7. 37:15Next Feature To Implement in a Micro Test

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