Parse Test Cases for JSON5

The test cases' file extension signals the expected behavior:

• Valid JSON should remain valid JSON5. These cases have a .json extension and are tested via JSON.parse().

• JSON5's new features should remain valid ES5. These cases have a .json5 extension are tested via eval().

• Valid ES5 that's explicitly disallowed by JSON5 is also invalid JSON. These cases have a .js extension and are expected to fail.

• Invalid ES5 should remain invalid JSON5. These cases have a .txt extension and are expected to fail.

This should cover all our bases. Most of the cases are unit tests for each supported data type, but aggregate test cases are welcome, too.

License

MIT. See LICENSE.md for details.