chai - 4.3.7~ds1+~cs9.7.21-1 main

Chai is a BDD / TDD assertion library for Node.js and the
browser that can be delightfully paired with any javascript testing framework.
This library is test framework agnostic.
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Test-driven development (TDD) is a software development process that relies
on the repetition of a very short development cycle: requirements
are turned into very specific test cases, then the software is improved
to pass the new tests
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BDD of Behavior-Driven Development is an extension of test-driven
development that makes use of a simple, domain-specific scripting
language (DSL). These DSLs convert structured natural language statements
into executable tests.
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Node.js is an event-based server-side JavaScript engine.