diff --git a/test/color.test.js b/test/color.test.js
new file mode 100644
index 0000000..ea5f8a9
--- /dev/null
+++ b/test/color.test.js
@@ -0,0 +1,13 @@
+var assert = require('assert');
+var tree = require('../lib/carto/tree.js');
+require('../lib/carto/tree/color');
+
+describe('Color', function() {
+    describe('basic functionality', function() {
+        it('should be constructed', function() {
+            var f = new tree.Color([0, 0, 0], 1);
+            assert.deepEqual(f.toHSL(), {"h":0,"s":0,"l":0,"a":1});
+            assert.ok(f);
+        });
+    });
+});
diff --git a/test/comment.test.js b/test/comment.test.js
new file mode 100644
index 0000000..bc6b01e
--- /dev/null
+++ b/test/comment.test.js
@@ -0,0 +1,14 @@
+var assert = require('assert');
+var tree = require('../lib/carto/tree.js');
+require('../lib/carto/tree/comment');
+
+describe('Comment', function() {
+    describe('basic functionality', function() {
+        it('should be constructed', function() {
+            var f = new tree.Comment('hello world');
+            assert.deepEqual(f.toString(), '<!--hello world-->');
+            assert.deepEqual(f.ev(), f);
+            assert.ok(f);
+        });
+    });
+});