sanemat / espower-loader

Power Assert feature instrumentor on the fly

espower-loader

Power Assert feature instrumentor on the fly.

DESCRIPTION

espower-loader is a Node.js module loader that enhances target sources on the fly. So you can instrument Power Assert feature without code generation for now.

espower-loader applies espower to target sources on loading them. espower manipulates assertion expression (JavaScript Code) in the form of ECMAScript AST defined in The ESTree Spec (formerly known as Mozilla SpiderMonkey Parser API), to instrument power-assert feature into the code. espower-loader also adjusts line and column number in stack traces by using source-map-support module.

Please note that espower-loader is a beta version product. Pull-requests, issue reports and patches are always welcomed. See power-assert project for more documentation.

FYI: You may be interested in intelli-espower-loader to go one step further. With intelli-espower-loader, you don't need to create loader file (like enable-power-assert.js). Just define test directory in package.json wow!

EXAMPLE

You can instrument power-assert without code generation (e.g. without using grunt-espower).

For mocha, Just add --require option.

$ mocha --require ./path/to/enable-power-assert test/some_test_using_powerassert.js

where enable-power-assert.js somewhere in your project is,

require('espower-loader')({
    cwd: process.cwd(),
    pattern: 'test/**/*.js'
});

You can specify options for espower module explicitly.

require('espower-loader')({

    // directory where match starts with
    cwd: process.cwd(),

    // glob pattern using minimatch module
    pattern: 'test/**/*.js',

    // options for espower module
    espowerOptions: {
        patterns: [
            'assert(value, [message])',
            'assert.ok(value, [message])',
            'assert.equal(actual, expected, [message])',
            'assert.notEqual(actual, expected, [message])',
            'assert.strictEqual(actual, expected, [message])',
            'assert.notStrictEqual(actual, expected, [message])',
            'assert.deepEqual(actual, expected, [message])',
            'assert.notDeepEqual(actual, expected, [message])'
        ]
    }
});

CHANGELOG

See CHANGELOG

AUTHOR

• Takuto Wada

LICENSE

Licensed under the MIT license.