[test] Add tests for watch

Please note that tests are synchronous because of possible race
conditions.

test/watch-test.js

@@ -0,0 +1,72 @@
+/*
+ * watch-test.js
+ *
+ * (C) 2010 and Charlie Robbins
+ * MIT LICENSE
+ *
+ */
+
+var assert = require('assert'),
+    path = require('path'),
+    fs = require('fs'),
+    vows = require('vows'),
+    forever = require('../lib/forever');
+
+vows.describe('forever/watch').addBatch({
+  'When using forever with watch enabled': {
+    'forever should': {
+      topic: forever.start('daemon.js', {
+        silent: true,
+        options: ['-p', '8090'],
+        watch: true,
+        sourceDir: path.join(__dirname, 'fixtures', 'watch')
+      }),
+      'have correct options set': function (child) {
+        assert.isTrue(child.watchIgnoreDotFiles);
+        assert.equal(fs.realpathSync(path.join(__dirname, 'fixtures', 'watch')),
+                     fs.realpathSync(child.watchDirectory));
+      },
+      'when file changes': {
+        topic: function (child) {
+          child.once('restart', this.callback);
+          fs.writeFileSync(path.join(__dirname, 'fixtures', 'watch', 'file'),
+                       '// hello, I know nodejitsu.');
+        },
+        'restart the script': function (child, _) {
+          fs.writeFileSync(path.join(__dirname, 'fixtures', 'watch', 'file'),
+                       '/* hello, I know nodejitsu. */');
+        }
+      },
+      'when file is added': {
+        topic: function (child) {
+          child.once('restart', this.callback);
+          fs.writeFileSync(path.join(__dirname, 'fixtures', 'watch', 'newFile'), '');
+        },
+        'restart the script': function (child, _) {
+          fs.unlinkSync(path.join(__dirname, 'fixtures', 'watch', 'newFile'));
+        }
+      },
+      'when file is removed': {
+        topic: function (child) {
+          child.once('restart', this.callback);
+          fs.unlinkSync(path.join(__dirname, 'fixtures', 'watch', 'removeMe'));
+        },
+        'restart the script': function (child, _) {
+          fs.writeFileSync(path.join(__dirname, 'fixtures', 'watch', 'removeMe'), '');
+        }
+      },
+      'read .foreverignore file': {
+        'and store ignore patterns': function (child) {
+          assert.deepEqual(
+            child.watchIgnorePatterns,
+            fs.readFileSync(
+              path.join(__dirname, 'fixtures', 'watch', '.foreverignore'),
+              'utf8'
+            ).split("\n")
+          );
+        }
+      }
+    }
+  }
+}).export(module);
+