Extremely simple to use test framework and runner for Metarhia technology stack
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README.md

metatests

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metatests is an extremely simple to use test framework and runner for Metarhia technology stack built on the following principles:

  • Test cases are files, tests are either imperative (functions) or declarative (arrays and structures).

  • Assertions are done using the built-in Node.js assert module. The framework also provides additional testing facilities (like spies).

  • Tests can be run in parallel.

  • All tests are executed in isolated sandboxes. The framework allows to easily mock modules required by tests and provides ready-to-use mocks for timers and other core functionality.

  • Testing asynchronous operations must be supported.

  • Testing pure functions without asynchronous operations and state can be done without extra boilerplate code using DSL based on arrays.

    mt.case('Test common.duration', { common }, {
      // ...
      'common.duration': [
        ['1d',     86400000 ],
        ['10h',    36000000 ],
        ['7m',     420000   ],
        ['13s',    13000    ],
        ['2d 43s', 172843000],
        // ...
      ],
      // ...
    });

    (Prior art)

  • The framework must work in Node.js and browsers (using Webpack or any other module bundler that supports CommonJS modules and emulates Node.js globals).

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