83 lines
1.7 KiB
Markdown
83 lines
1.7 KiB
Markdown
bunker
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======
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Bunker is a module to calculate code coverage using native javascript
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[burrito](https://github.com/substack/node-burrito) AST trickery.
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[](http://travis-ci.org/substack/node-bunker)
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examples
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========
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tiny
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----
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````javascript
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var bunker = require('bunker');
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var b = bunker('var x = 0; for (var i = 0; i < 30; i++) { x++ }');
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var counts = {};
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b.on('node', function (node) {
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if (!counts[node.id]) {
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counts[node.id] = { times : 0, node : node };
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}
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counts[node.id].times ++;
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});
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b.run();
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Object.keys(counts).forEach(function (key) {
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var count = counts[key];
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console.log(count.times + ' : ' + count.node.source());
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});
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````
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output:
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$ node example/tiny.js
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1 : var x=0;
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31 : i<30
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30 : i++
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30 : x++;
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30 : x++
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methods
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=======
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var bunker = require('bunker');
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var b = bunker(src)
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-------------------
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Create a new bunker code coverageifier with some source `src`.
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The bunker object `b` is an `EventEmitter` that emits `'node'` events with two
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parameters:
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* `node` - the [burrito](https://github.com/substack/node-burrito) node object
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* `stack` - the stack, [stackedy](https://github.com/substack/node-stackedy) style
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b.include(src)
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--------------
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Include some source into the bunker.
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b.compile()
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-----------
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Return the source wrapped with burrito.
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b.assign(context={})
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--------------------
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Assign the statement-tracking functions into `context`.
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b.run(context={})
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-----------------
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Run the source using `vm.runInNewContext()` with some `context`.
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The statement-tracking functions will be added to `context` by `assign()`.
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