Current Dev State

static/js/ketcher2/node_modules/flagged-respawn/test/index.js

@@ -0,0 +1,99 @@
+const expect = require('chai').expect;
+const exec = require('child_process').exec;
+
+const reorder = require('../lib/reorder');
+const flaggedRespawn = require('../');
+
+describe('flaggedRespawn', function () {
+  var flags = ['--harmony', '--use_strict', '--stack_size']
+
+  describe('reorder', function () {
+
+    it('should re-order args, placing special flags first', function () {
+      var needsRespawn = ['node', 'file.js', '--flag', '--harmony', 'command'];
+      var noRespawnNeeded = ['node', 'bin/flagged-respawn', 'thing'];
+      expect(reorder(flags, needsRespawn))
+        .to.deep.equal(['node', '--harmony', 'file.js', '--flag', 'command']);
+      expect(reorder(flags, noRespawnNeeded))
+        .to.deep.equal(noRespawnNeeded);
+    });
+
+    it('should keep flags values when not placed first', function () {
+      var args = ['node', 'file.js', '--stack_size=2048'];
+      var expected = ['node', '--stack_size=2048', 'file.js'];
+      expect(reorder(flags, args)).to.deep.equal(expected);
+    });
+
+    it('should ignore special flags when they are in the correct position', function () {
+      var args = ['node', '--harmony', 'file.js', '--flag'];
+      expect(reorder(flags, reorder(flags, args))).to.deep.equal(args);
+    });
+
+  });
+
+  describe('execute', function () {
+
+    it('should throw if no flags are specified', function () {
+      expect(function () { flaggedRespawn.execute(); }).to.throw;
+    });
+
+    it('should throw if no argv is specified', function () {
+      expect(function () { flaggedRespawn.execute(flags); }).to.throw;
+    });
+
+    it('should respawn and pipe stderr/stdout to parent', function (done) {
+      exec('node ./test/bin/respawner.js --harmony', function (err, stdout, stderr) {
+        expect(stdout.replace(/[0-9]/g, '')).to.equal('Special flags found, respawning.\nRespawned to PID: \nRunning!\n');
+        done();
+      });
+    });
+
+    it('should respawn and pass exit code from child to parent', function (done) {
+      exec('node ./test/bin/exit_code.js --harmony', function (err, stdout, stderr) {
+        expect(err.code).to.equal(100);
+        done();
+      });
+    });
+
+    it.skip('should respawn; if child is killed, parent should exit with same signal', function (done) {
+      // TODO: figure out why travis hates this
+      exec('node ./test/bin/signal.js --harmony', function (err, stdout, stderr) {
+        console.log('err', err);
+        console.log('stdout', stdout);
+        console.log('stderr', stderr);
+        expect(err.signal).to.equal('SIGHUP');
+        done();
+      });
+    });
+
+    it('should call back with ready as true when respawn is not needed', function () {
+      var argv = ['node', './test/bin/respawner'];
+      flaggedRespawn(flags, argv, function (ready) {
+        expect(ready).to.be.true;
+      });
+    });
+
+    it('should call back with ready as false when respawn is needed', function () {
+      var argv = ['node', './test/bin/respawner', '--harmony'];
+      flaggedRespawn(flags, argv, function (ready) {
+        expect(ready).to.be.false;
+      });
+    });
+
+    it('should call back with the child process when ready', function () {
+      var argv = ['node', './test/bin/respawner', '--harmony'];
+      flaggedRespawn(flags, argv, function (ready, child) {
+        expect(child.pid).to.not.equal(process.pid);
+      });
+    });
+
+    it('should call back with own process when respawn not needed', function () {
+      var argv = ['node', './test/bin/respawner'];
+      flaggedRespawn(flags, argv, function (ready, child) {
+        expect(child.pid).to.equal(process.pid);
+      });
+    });
+
+  });
+
+});