Name: js-handler/node_modules/nodeunit/node_modules/tap/node_modules/runforcover/README.markdown
| 1: | runforcover |
| 2: | ====== |
| 3: | |
| 4: | Runforcover is a require-hook library that uses node-bunker to provide code coverage data |
| 5: | for your unit test library, whatever it might be. |
| 6: | |
| 7: | methods |
| 8: | ======= |
| 9: | var runforcover = require('runforcover'); |
| 10: | |
| 11: | var coverage = runforcover.cover([RegExp | path]); |
| 12: | ------- |
| 13: | |
| 14: | Attach runforcover to the global `require` object and patch `require.extensions['.js']` to |
| 15: | provide coverage metadata for all files required after this point. Returns a function |
| 16: | object that can be called to obtain a object keying files to `CoverageData` objects, with |
| 17: | a method for releasing control back to vanilla `require`. Usage: |
| 18: | |
| 19: | ````javascript |
| 20: | |
| 21: | var coverage = runforcover.cover(/.*/g); |
| 22: | |
| 23: | require('some/library'); |
| 24: | |
| 25: | coverage(function(coverageData) { |
| 26: | // coverageData is an object keyed by filename. |
| 27: | var stats = coverageData['/full/path/to/file.js'].stats() |
| 28: | |
| 29: | // the percentage of lines run versus total lines in file |
| 30: | console.log(stats.percentage); |
| 31: | |
| 32: | // the number of missing lines |
| 33: | console.log(stats.missing); |
| 34: | |
| 35: | // the number of lines run (seen) |
| 36: | console.log(stats.seen); |
| 37: | |
| 38: | // an array of line objects representing 'missed' lines |
| 39: | stats.lines; |
| 40: | |
| 41: | stats.lines.forEach(function(line) { |
| 42: | // the line number of the line: |
| 43: | console.log(line.number); |
| 44: | |
| 45: | // returns a string containing the source data for the line: |
| 46: | console.log(line.source()); |
| 47: | }); |
| 48: | |
| 49: | // return control back to the original require function |
| 50: | coverage.release(); |
| 51: | }); |
| 52: | ```` |
| 53: | |
| 54: | license |
| 55: | ======= |
| 56: | new BSD. |
