How to use hookRequire method in istanbul

Best JavaScript code snippet using istanbul

test-hook.js

Source:test-hook.js

...10module.exports = {11    "when require is hooked": {12        setUp: function (cb) {13            currentHook = require('module')._extensions['.js'];14            hook.hookRequire(matcher, transformer, { verbose: true });15            cb();16        },17        tearDown: function (cb) {18            hook.unloadRequireCache(matcher);19            require('module')._extensions['.js'] = currentHook;20            cb();21        },22        "foo should be transformed": function (test) {23            var foo = require('./data/foo');24            test.ok(foo.bar);25            test.equals('bar', foo.bar());26            test.done();27        },28        "but baz should be skipped": function (test) {29            var foo = require('./data/baz');30            test.ok(foo.baz);31            test.equals('baz', foo.baz());32            test.done();33        },34        "postLoadHook should be called": function (test) {35            var called = null,36                opts = { postLoadHook: function (file) { called = file; }},37                foo;38            hook.unhookRequire();39            hook.hookRequire(matcher, transformer, opts);40            foo = require('./data/foo');41            test.ok(called.match(/foo\.js/));42            test.done();43        },44        "and cache should be un- and reloaded": function (test) {45            hook.unhookRequire();46            hook.hookRequire(matcher, transformer2);47            var foo = require('./data/foo');48            test.ok(foo.blah);49            test.equals('blah', foo.blah());50            test.done();51        },52        "bad transformer should return original code": function (test) {53            hook.unhookRequire();54            hook.hookRequire(matcher, badTransformer);55            var foo = require('./data/foo');56            test.ok(foo.foo);57            test.equals('foo', foo.foo());58            test.done();59        }60    },61    "when extensions are passed to hookRequire": {62        setUp: function(cb) {63            var extensions = require('module')._extensions;64            extensions['.es6'] = extensions['.js'];65            hook.hookRequire(matcher2, transformer2, { verbose: true, extensions: ['.es6'] });66            cb();67        },68        tearDown: function(cb) {69            hook.unloadRequireCache(matcher2);70            delete require('module')._extensions['.es6'];71            cb();72        },73        "bar should be transformed": function(test) {74            var bar = require('./data/bar');75            test.ok(bar.blah);76            test.equals('blah', bar.blah());77            test.done();78        },79        "but foo should be skipped": function (test) {...

coverage.js

Source:coverage.js

...15 * Usage:16 * ```17 *  //Node unit tests18 *  var coverage = require('/path/to/this/file');19 *  coverage.hookRequire(); // hooks require for instrumentation20 *  coverage.addInstrumentCandidate(file); // adds a file that needs to be instrumented; should be called before file is `require`d21 *22 *  //Browser tests23 *  var coverage = require('/path/to/this/file');24 *  var instrumentedCode = coverage.instrumentFile(file); //alternatively, use `instrumentCode` if you have already loaded the code25 *  //collect coverage from the browser26 *  // this coverage will be stored as `window.__coverage__`27 *  // and...28 *  coverage.addCoverage(coverageObject); // rinse and repeat29 *  ```30 *31 *  //in all cases, add an exit handler to the process32 *  process.once('exit', function () { coverage.writeReports(outputDir); }); //write coverage reports33 */34/**35 * adds a file as a candidate for instrumentation when require is hooked36 * @method addInstrumentCandidate37 * @param file the file to add as an instrumentation candidate38 */39function addInstrumentCandidate(file) {40    file = path.resolve(file);41    fileMap[file] = true;42}43/**44 * hooks require to instrument all files that have been specified as instrumentation candidates45 * @method hookRequire46 * @param verbose true for debug messages47 */48function hookRequire(verbose) {49    var matchFn = function (file) {50        var match = fileMap[file],51            what = match ? 'Hooking' : 'NOT hooking';52        if (verbose) { console.log(what + file); }53        return match;54    }, transformFn = instrumenter.instrumentSync.bind(instrumenter);55    hook.hookRequire(matchFn, transformFn);56}57/**58 * unhooks require hooks that have been installed59 * @method unhookRequire60 */61function unhookRequire() {62    hook.unhookRequire();63}64/**65 * returns the coverage collector, creating one if necessary and automatically66 * adding the contents of the global coverage object. You can use this method67 * in an exit handler to get the accumulated coverage.68 */69function getCollector() {70    if (!collector) {71        collector = new Collector();72    }73    if (globalAdded) { return collector; }74    if (global['__coverage__']) {75        collector.add(global['__coverage__']);76        globalAdded = true;...

bizancio.js

Source:bizancio.js

...16        if (verbose) { console.log(what + file); }17        return match;18    };19    var transformFn = instrumenter.instrumentSync.bind(instrumenter);20    hook.hookRequire(matchFn, transformFn);21}22/**23 * returns the coverage collector, creating one and automatically24 * adding the contents of the global coverage object. You can use this method25 * in an exit handler to get the accumulated coverage.26 */27function getCollector() {28    var collector = new Collector();29    if (global['__coverage__']) {30        collector.add(global['__coverage__']);31    } else {32        console.error('No global coverage found for the node process');33    }34    return collector;...

Using AI Code Generation

1require('istanbul').hookRequire();2require('istanbul').hookRunInThisContext();3require('istanbul').hookRunInContext();4require('istanbul').hookRunInNewContext();5require('istanbul').hookChildProcess();6require('istanbul').hookRequire(function(matcher, transformer, verbose) {7});8require('istanbul').hookRunInThisContext(function(matcher, transformer, verbose) {9});10require('istanbul').hookRunInContext(function(matcher, transformer, verbose) {11});12require('istanbul').hookRunInNewContext(function(matcher, transformer, verbose) {

Using AI Code Generation

1var hook = require('istanbul').hook;2hook.hookRequire();3var hook = require('istanbul').hook;4hook.hookRunInThisContext();5var hook = require('istanbul').hook;6hook.hookRunInContext();7var hook = require('istanbul').hook;8hook.hookRequire();9var hook = require('istanbul').hook;10hook.hookRunInThisContext();11var hook = require('istanbul').hook;12hook.hookRunInContext();13var hook = require('istanbul').hook;14hook.hookRequire();15var hook = require('istanbul').hook;16hook.hookRunInThisContext();17var hook = require('istanbul').hook;18hook.hookRunInContext();19var hook = require('istanbul').hook;20hook.hookRequire();21var hook = require('istanbul').hook;22hook.hookRunInThisContext();23var hook = require('istanbul').hook;24hook.hookRunInContext();25var hook = require('istanbul').hook;26hook.hookRequire();27var hook = require('istanbul').hook;28hook.hookRunInThisContext();29var hook = require('istanbul').hook;30hook.hookRunInContext();31var hook = require('istanbul').hook;32hook.hookRequire();33var hook = require('istanbul').hook;

Using AI Code Generation

1var istanbul = require('istanbul');2var hook = istanbul.hook;3var instrumenter = new istanbul.Instrumenter();4hook.hookRequire(function (code, file) {5    if (file.indexOf('test.js') > -1) {6        return instrumenter.instrumentSync(code, file);7    }8    return code;9});10var istanbul = require('istanbul');11var hook = istanbul.hook;12var instrumenter = new istanbul.Instrumenter();13hook.hookRequire(function (code, file) {14    if (file.indexOf('test.js') > -1) {15        return instrumenter.instrumentSync(code, file);16    }17    return code;18});19var istanbul = require('istanbul');20var hook = istanbul.hook;21var instrumenter = new istanbul.Instrumenter();22hook.hookRequire(function (code, file) {23    if (file.indexOf('test.js') > -1) {24        return instrumenter.instrumentSync(code, file);25    }26    return code;27});28var istanbul = require('istanbul');29var hook = istanbul.hook;30var instrumenter = new istanbul.Instrumenter();31hook.hookRequire(function (code, file) {32    if (file.indexOf('test.js') > -1) {33        return instrumenter.instrumentSync(code, file);34    }35    return code;36});37var istanbul = require('istanbul');38var hook = istanbul.hook;39var instrumenter = new istanbul.Instrumenter();40hook.hookRequire(function (code, file) {41    if (file.indexOf('test.js') > -1) {42        return instrumenter.instrumentSync(code, file);43    }44    return code;45});46var istanbul = require('istanbul');47var hook = istanbul.hook;48var instrumenter = new istanbul.Instrumenter();49hook.hookRequire(function (code, file) {50    if (file.indexOf('test.js') > -1) {51        return instrumenter.instrumentSync(code, file);52    }53    return code;54});

Using AI Code Generation

1var istanbul = require('istanbul');2var hook = istanbul.hook;3hook.hookRequire();4var instrumenter = new istanbul.Instrumenter();5var fs = require('fs');6var code = fs.readFileSync('test1.js', 'utf8');7var instrumentedCode = instrumenter.instrumentSync(code, 'test1.js');8fs.writeFileSync('test1.js', instrumentedCode, 'utf8');9var instrumenter = new istanbul.Instrumenter();10var fs = require('fs');11var code = fs.readFileSync('test1.js', 'utf8');12var instrumentedCode = instrumenter.instrumentSync(code, 'test1.js');13fs.writeFileSync('test1.js', instrumentedCode, 'utf8');14var instrumenter = new istanbul.Instrumenter();15var fs = require('fs');16var code = fs.readFileSync('test1.js', 'utf8');17var instrumentedCode = instrumenter.instrumentSync(code, 'test1.js');18fs.writeFileSync('test1.js', instrumentedCode, 'utf8');19var instrumenter = new istanbul.Instrumenter();20var fs = require('fs');21var code = fs.readFileSync('test1.js', 'utf8');22var instrumentedCode = instrumenter.instrumentSync(code, 'test1.js');23fs.writeFileSync('test1.js', instrumentedCode, 'utf8');24var instrumenter = new istanbul.Instrumenter();25var fs = require('fs');26var code = fs.readFileSync('test1.js', 'utf8');27var instrumentedCode = instrumenter.instrumentSync(code, 'test1.js');28fs.writeFileSync('test1.js', instrumentedCode, 'utf8');29var instrumenter = new istanbul.Instrumenter();30var fs = require('fs');31var code = fs.readFileSync('test1.js', 'utf8');32var instrumentedCode = instrumenter.instrumentSync(code, 'test1.js');33fs.writeFileSync('test1.js', instrumentedCode, 'utf8');34var instrumenter = new istanbul.Instrumenter();

Using AI Code Generation

1var istanbul = require('istanbul');2var instrumenter = new istanbul.Instrumenter();3var hook = istanbul.hook;4hook.hookRequire(function (file) {5   return file.indexOf('node_modules') === -1;6}, function (code, file) {7   return instrumenter.instrumentSync(code, file);8});9var hook = istanbul.hook;10hook.hookRequire();11var instrumenter = new istanbul.Instrumenter();12hook.hookRequire(function (file) {13   return file.indexOf('node_modules') === -1;14}, function (code, file) {15   return instrumenter.instrumentSync(code, file);16});17var hook = istanbul.hook;18hook.hookRequire();19var instrumenter = new istanbul.Instrumenter();20hook.hookRequire(function (file) {21   return file.indexOf('node_modules') === -1;22}, function (code, file) {23   return instrumenter.instrumentSync(code, file);24});

Using AI Code Generation

1var istanbul = require('istanbul');2var hook = istanbul.hook;3var hookOpts = {4    postLoadHook: function (file) {5        console.log('Loaded ' + file);6    }7};8hook.hookRequire(hookOpts);9var lib = require('./lib.js');10console.log(lib);11console.log('lib.js');12module.exports = 'hello';

Using AI Code Generation

1var istanbul = require('istanbul');2var hook = istanbul.hook;3var instrumenter = new istanbul.Instrumenter();4hook.hookRequire(function (path) {5    return path.indexOf('node_modules') === -1;6}, function (code, path) {7    return instrumenter.instrumentSync(code, path);8});9var vm = require('vm');10var istanbul = require('istanbul');11var hook = istanbul.hook;12var instrumenter = new istanbul.Instrumenter();13hook.hookRunInThisContext(function (code, path) {14    return instrumenter.instrumentSync(code, path);15});16var vm = require('vm');17var istanbul = require('istanbul');18var hook = istanbul.hook;19var instrumenter = new istanbul.Instrumenter();20hook.hookRunInContext(function (code, path) {21    return instrumenter.instrumentSync(code, path);22});23var vm = require('vm');24var istanbul = require('istanbul');25var hook = istanbul.hook;26var instrumenter = new istanbul.Instrumenter();27hook.hookRunInNewContext(function (code, path) {28    return instrumenter.instrumentSync(code, path);29});30var vm = require('vm');31var istanbul = require('istanbul');32var hook = istanbul.hook;33var instrumenter = new istanbul.Instrumenter();34hook.hookRunInThisContext(function (code, path) {35    return instrumenter.instrumentSync(code, path);36});37var vm = require('vm');38var istanbul = require('istanbul');39var hook = istanbul.hook;40var instrumenter = new istanbul.Instrumenter();41hook.hookRunInThisContext(function (code, path) {42    return instrumenter.instrumentSync(code, path);43});

Using AI Code Generation

1var istanbul = require('istanbul');2var hook = istanbul.hook;3hook.hookRequire();4var myModule = require('./myModule');5var myOtherModule = require('./myOtherModule');6console.log(myModule);7console.log(myOtherModule);8var myModule = {9};10module.exports = myModule;11var myOtherModule = {12};13module.exports = myOtherModule;14{ foo: 'bar' }15{ foo: 'bar' }16{ foo: 'bar' }17{ foo: 'bar' }18Hi, I'm trying to use istanbul to get a coverage report for my unit tests, but I'm having a problem with the require hook. I've created a test.js file and a couple of other files that it requires, and I'm trying to get the coverage report for the test.js file. I've tried to follow the instructions in the istanbul documentation, but I'm getting the following output: $ node test.js { foo: 'bar' } { foo: 'bar' } When I run the coverage I get the following output: $ istanbul cover test.js { foo: 'bar' } { foo: 'bar' } No coverage information was collected, exit without writing coverage information I am using the following versions: $ istanbul --version 0.4.0 $ node --version v0.10.28 I am running this on a Mac OS X 10.8.5. What am I doing wrong? Thanks in advance, Rajesh

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