diff --git a/test/streams/polyglot.js b/test/streams/polyglot.js
new file mode 100644
index 0000000..82aa8e0
--- /dev/null
+++ b/test/streams/polyglot.js
@@ -0,0 +1,17 @@
+'use strict';
+
+var test = require('prova'),
+  concat = require('concat-stream'),
+  path = require('path'),
+  shallow = require('../../streams/shallow'),
+  polyglot = require('../../streams/polyglot');
+
+test('polyglot', function (t) {
+  shallow([path.resolve(path.join(__dirname, '../fixture/polyglot/blend.cpp'))])
+    .pipe(polyglot())
+    .pipe(concat(function (comments) {
+      t.equal(comments.length, 1);
+      t.equal(comments[0].description, 'This method moves a hex to a color');
+      t.end();
+    }));
+});
diff --git a/test/streams/shallow.js b/test/streams/shallow.js
new file mode 100644
index 0000000..a2ccdec
--- /dev/null
+++ b/test/streams/shallow.js
@@ -0,0 +1,26 @@
+'use strict';
+
+var test = require('prova'),
+  concat = require('concat-stream'),
+  path = require('path'),
+  shallow = require('../../streams/shallow');
+
+test('shallow deps', function (t) {
+  shallow([path.resolve(path.join(__dirname, '../fixture/es6.input.js'))])
+    .pipe(concat(function (deps) {
+      t.equal(deps.length, 1);
+      t.ok(deps[0].file, 'has file');
+      t.end();
+    }));
+});
+
+test('shallow deps multi', function (t) {
+  shallow([
+    path.resolve(path.join(__dirname, '../fixture/es6.input.js')),
+    path.resolve(path.join(__dirname, '../fixture/es6.output.json'))
+  ]).pipe(concat(function (deps) {
+    t.equal(deps.length, 2);
+    t.ok(deps[0].file, 'has file');
+    t.end();
+  }));
+});