test: iteration

package.json

@@ -20,7 +20,7 @@
   ],
   "license": "MIT",
   "scripts": {
-    "test": "nyc mocha"
+    "test": "nyc mocha test/*.test.js"
   },
   "dependencies": {},
   "devDependencies": {

test/iteration.test.js

@@ -0,0 +1,42 @@
+'use strict';
+
+var test = require('./util').test;
+var assert = require('assert')
+var doT = require('../doT');
+
+
+describe('iteration', function() {
+    describe('without index', function() {
+        it('should repeat string N times', function() {
+            test([
+                '{{~it.arr:x}}*{{~}}',
+                '{{~ it.arr:x }}*{{~}}',
+                '{{~ it.arr: x }}*{{~}}',
+                '{{~ it.arr :x }}*{{~}}'
+            ], {arr: Array(3)}, '***');
+        });
+
+        it('should concatenate items', function() {
+            test(['{{~it.arr:x}}{{=x}}{{~}}'], {arr: [1,2,3]}, '123');
+        });
+    });
+
+    describe('with index', function() {
+        it('should repeat string N times', function() {
+            test([
+                '{{~it.arr:x:i}}*{{~}}',
+                '{{~ it.arr : x : i }}*{{~}}'
+            ], {arr: Array(3)}, '***');
+        });
+
+        it('should concatenate indices', function() {
+            test(['{{~it.arr:x:i}}{{=i}}{{~}}'], {arr: Array(3)}, '012');
+        });
+
+        it('should concatenate indices and items', function() {
+            test([
+                '{{~it.arr:x:i}}{{?i}}, {{?}}{{=i}}:{{=x}}{{~}}'
+            ], {arr: [10,20,30]}, '0:10, 1:20, 2:30');
+        });
+    });
+});

test/util.js

@@ -0,0 +1,11 @@
+'use strict';
+
+var assert = require('assert')
+var doT = require('../doT');
+
+exports.test = function (templates, data, result) {
+    templates.forEach(function (tmpl) {
+        var fn = doT.template(tmpl);
+        assert.strictEqual(fn(data), result);
+    });
+};