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should-throw-instanceof

Testing helper function allows deeper inspection of errors than should.throw.

Usage

Give it callable code block, the type of error you expect, and any number of additional string, regex, and function 'matchers'. Example with both a string and a function matcher:

var shouldThrowInstanceof = require('should-throw-instanceof');
 
it('calling undefined() throws TypeError with stack', function () {
    shouldThrowInstanceof(
        function () { undefined(); },
        TypeError,
        'undefined is not a function',
        function (err) { return 'stack' in err; }
    );
});

String and regex matchers will be applied to the error message field (strings are checked for equality). Functions will be applied to the whole error object (checked for truthy return value and no exception thrown).

Any other type of matcher argument is not explicitly supported, but will be passed directly to should.match and checked over the whole error object.

Installation

npm install should-throw-instanceof

Contribute

• Issue Tracker: github.com/bodylabs/should-throw-instanceof/issues
• Source Code: github.com/bodylabs/should-throw-instanceof

Pull requests welcome!

Support

If you are having issues, please let us know.

License

The project is licensed under the two-clause BSD license.