init

node_modules/watchify/test/expose.js

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+var test = require('tape');
+var watchify = require('../');
+var browserify = require('browserify');
+var vm = require('vm');
+
+var fs = require('fs');
+var path = require('path');
+var mkdirp = require('mkdirp');
+
+var os = require('os');
+var tmpbase = fs.realpathSync((os.tmpdir || os.tmpDir)());
+var tmpdir = path.join(tmpbase, 'watchify-' + Math.random());
+
+var files = {
+    main: path.join(tmpdir, 'main.js'),
+    beep: path.join(tmpdir, 'beep.js'),
+    boop: path.join(tmpdir, 'boop.js'),
+    abc: path.join(tmpdir, 'lib', 'abc.js'),
+    xyz: path.join(tmpdir, 'lib', 'xyz.js')
+};
+
+mkdirp.sync(tmpdir);
+mkdirp.sync(path.join(tmpdir, 'lib'));
+
+fs.writeFileSync(files.main, [
+    'var abc = require("abc");',
+    'var xyz = require("xyz");',
+    'var beep = require("./beep");',
+    'console.log(abc + " " + xyz + " " + beep);'
+].join('\n'));
+fs.writeFileSync(files.beep, 'module.exports = require("./boop");');
+fs.writeFileSync(files.boop, 'module.exports = require("xyz");');
+fs.writeFileSync(files.abc, 'module.exports = "abc";');
+fs.writeFileSync(files.xyz, 'module.exports = "xyz";');
+
+test('properly caches exposed files', function (t) {
+    t.plan(4);
+    var cache = {};
+    var w = watchify(browserify({
+        entries: [files.main],
+        basedir: tmpdir,
+        cache: cache,
+        packageCache: {}
+    }));
+
+    w.require('./lib/abc', {expose: 'abc'});
+    w.require('./lib/xyz', {expose: 'xyz'});
+    w.on('update', function () {
+        w.bundle(function (err, src) {
+            t.ifError(err);
+            t.equal(run(src), 'ABC XYZ XYZ\n');
+            w.close();
+        });
+    });
+    w.bundle(function (err, src) {
+        t.ifError(err);
+        t.equal(run(src), 'abc xyz xyz\n');
+        setTimeout(function () {
+            // If we're incorrectly caching exposed files,
+            // then "files.abc" would be re-read from disk.
+            cache[files.abc].source = 'module.exports = "ABC";';
+            fs.writeFileSync(files.xyz, 'module.exports = "XYZ";');
+        }, 1000);
+    });
+});
+
+function run (src) {
+    var output = '';
+    function log (msg) { output += msg + '\n' }
+    vm.runInNewContext(src, { console: { log: log } });
+    return output;
+}