Mustache specs

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "test/spec"]
+	path = test/spec
+	url = https://github.com/mustache/spec

README.md

@@ -357,6 +357,11 @@ The mustache.js test suite uses the [mocha](http://visionmedia.github.com/mocha/
 
     $ npm install -g mocha
 
+You also need to install the sub module containing [Mustache specifications](http://github.com/mustache/spec) in the project root.
+
+    $ git submodule init
+    $ git submodule update
+
 Then run the tests.
 
     $ mocha test

test/mustache-spec-test.js

@@ -0,0 +1,89 @@
+require('./helper');
+
+var fs = require('fs');
+var path = require('path');
+var specsDir = path.join(__dirname, 'spec/specs');
+
+var skipTests = {
+  comments: [
+    'Standalone Without Newline'
+  ],
+  delimiters: [
+    'Standalone Without Newline'
+  ],
+  inverted: [
+    'Standalone Without Newline'
+  ],
+  partials: [
+    'Standalone Without Previous Line',
+    'Standalone Without Newline',
+    'Standalone Indentation'
+  ],
+  sections: [
+    'Standalone Without Newline'
+  ],
+  '~lambdas': [
+    'Interpolation',
+    'Interpolation - Expansion',
+    'Interpolation - Alternate Delimiters',
+    'Interpolation - Multiple Calls',
+    'Escaping',
+    'Section - Expansion',
+    'Section - Alternate Delimiters'
+  ]
+};
+
+// You can run the skiped tests by setting the NOSKIP environment variable to
+// true (e.g. NOSKIP=true mocha test/mustache-spec-test.js)
+var noSkip = process.env.NOSKIP;
+
+// You can put the name of a specific test file to run in the TEST environment
+// variable (e.g. TEST=interpolation mocha test/mustache-spec-test.js)
+var fileToRun = process.env.TEST;
+
+// Mustache should work on node 0.6 that doesn't have fs.exisisSync
+function existsDir(path) {
+  try {
+    return fs.statSync(path).isDirectory();
+  } catch (x) {
+    return false;
+  }
+}
+
+var specFiles;
+if (fileToRun) {
+  specFiles = [fileToRun];
+} else if (existsDir(specsDir)) {
+  specFiles = fs.readdirSync(specsDir).filter(function (file) {
+    return (/\.json$/).test(file);
+  }).map(function (file) {
+    return path.basename(file).replace(/\.json$/, '');
+  }).sort();
+} else {
+  specFiles = [];
+}
+
+function getSpecs(specArea) {
+  return JSON.parse(fs.readFileSync(path.join(specsDir, specArea + '.' + 'json'), 'utf8'));
+}
+
+describe('Mustache spec compliance', function() {
+  beforeEach(function () {
+    Mustache.clearCache();
+  });
+
+  specFiles.forEach(function(specArea) {
+    describe('- ' + specArea + ':', function() {
+      var specs = getSpecs(specArea);
+      specs.tests.forEach(function(test) {
+        var it_ = (!noSkip && skipTests[specArea] && skipTests[specArea].indexOf(test.name) >= 0) ? it.skip : it;
+        it_(test.name + ' - ' + test.desc, function() {
+          if (test.data.lambda && test.data.lambda.__tag__ === 'code')
+            test.data.lambda = eval('(function() { return ' + test.data.lambda.js + '; })');
+          var output = Mustache.render(test.template, test.data, test.partials);
+          assert.equal(output, test.expected);
+        });
+      });
+    });
+  });
+});