added a compilation step in Gruntfile, a test suite, and expected res…

…ults for the new sourceMapDir option

Gruntfile.js

@@ -36,7 +36,7 @@ module.exports = function(grunt) {
 
     // Before generating any new files, remove any previously-created files.
     clean: {
-      tests: ['tmp/bare', 'tmp/default', 'tmp/join']
+      tests: ['tmp/bare', 'tmp/default', 'tmp/join', 'tmp/sourceMapDir1', 'tmp/sourceMapDir2']
     },
 
     // Configuration to be run (and then tested).
@@ -88,6 +88,15 @@ module.exports = function(grunt) {
           'tmp/maps/coffeeJoin.js': uniformConcatFixtures
         }
       },
+      compileSourceMapDir: {
+        options: {
+          sourceMap: true,
+          sourceMapDir: 'tmp/sourceMapDir2/'
+        },
+        files: {
+          'tmp/sourceMapDir1/coffee.js': ['test/fixtures/coffee1.coffee']
+        }
+      },
       compileEachMap: {
         options: {
           sourceMap: true

test/coffee_test.js

@@ -183,6 +183,23 @@ exports.coffee = {
       'test/expected/eachMap/litcoffee.js.map',
       'Separate compilation of coffee and litcoffee files with source maps should generate map');
 
+    test.done();
+  },
+  compileSourceMapDir: function(test) {
+    'use strict';
+
+    test.expect(2);
+
+    assertFileEquality(test,
+      'tmp/sourceMapDir1/coffee.js',
+      'test/expected/sourceMapDir1/coffee.js',
+      'Compilation of single file with source maps should generate javascript');
+
+    assertFileEquality(test,
+      'tmp/sourceMapDir2/coffee.js.map',
+      'test/expected/sourceMapDir2/coffee.js.map',
+      'Compilation of single file with alternate source map dir should generate map');
+
     test.done();
   }
 };