diff --git a/test/form/unused-var/_config.js b/test/form/unused-var/_config.js
new file mode 100644
index 0000000..b89eb86
--- /dev/null
+++ b/test/form/unused-var/_config.js
@@ -0,0 +1,3 @@
+module.exports = {
+	description: 'omits unused var declaration'
+};
diff --git a/test/form/unused-var/_expected/amd.js b/test/form/unused-var/_expected/amd.js
new file mode 100644
index 0000000..29e6e69
--- /dev/null
+++ b/test/form/unused-var/_expected/amd.js
@@ -0,0 +1,7 @@
+define(function () { 'use strict';
+
+	var foo = 'lol';
+
+	console.log( foo );
+
+});
diff --git a/test/form/unused-var/_expected/cjs.js b/test/form/unused-var/_expected/cjs.js
new file mode 100644
index 0000000..4e96ed5
--- /dev/null
+++ b/test/form/unused-var/_expected/cjs.js
@@ -0,0 +1,5 @@
+'use strict';
+
+var foo = 'lol';
+
+console.log( foo );
diff --git a/test/form/unused-var/_expected/es6.js b/test/form/unused-var/_expected/es6.js
new file mode 100644
index 0000000..80d05d2
--- /dev/null
+++ b/test/form/unused-var/_expected/es6.js
@@ -0,0 +1,3 @@
+var foo = 'lol';
+
+console.log( foo );
diff --git a/test/form/unused-var/_expected/iife.js b/test/form/unused-var/_expected/iife.js
new file mode 100644
index 0000000..e50863d
--- /dev/null
+++ b/test/form/unused-var/_expected/iife.js
@@ -0,0 +1,8 @@
+(function () {
+	'use strict';
+
+	var foo = 'lol';
+
+	console.log( foo );
+
+}());
diff --git a/test/form/unused-var/_expected/umd.js b/test/form/unused-var/_expected/umd.js
new file mode 100644
index 0000000..ed0baa3
--- /dev/null
+++ b/test/form/unused-var/_expected/umd.js
@@ -0,0 +1,11 @@
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? factory() :
+	typeof define === 'function' && define.amd ? define(factory) :
+	(factory());
+}(this, function () { 'use strict';
+
+	var foo = 'lol';
+
+	console.log( foo );
+
+}));
diff --git a/test/form/unused-var/foo.js b/test/form/unused-var/foo.js
new file mode 100644
index 0000000..3b60a87
--- /dev/null
+++ b/test/form/unused-var/foo.js
@@ -0,0 +1,6 @@
+var foo = 'lol';
+var bar = 'wut';
+
+var baz = bar || foo;
+
+export { foo };
diff --git a/test/form/unused-var/main.js b/test/form/unused-var/main.js
new file mode 100644
index 0000000..1b3e409
--- /dev/null
+++ b/test/form/unused-var/main.js
@@ -0,0 +1,2 @@
+import { foo } from './foo.js';
+console.log( foo );
diff --git a/test/function/tracks-late-alias-mutations/_config.js b/test/function/tracks-late-alias-mutations/_config.js
new file mode 100644
index 0000000..15906f8
--- /dev/null
+++ b/test/function/tracks-late-alias-mutations/_config.js
@@ -0,0 +1,3 @@
+module.exports = {
+	description: 'tracks mutations of late aliases'
+};
diff --git a/test/function/tracks-late-alias-mutations/bar.js b/test/function/tracks-late-alias-mutations/bar.js
new file mode 100644
index 0000000..f82bb7a
--- /dev/null
+++ b/test/function/tracks-late-alias-mutations/bar.js
@@ -0,0 +1,7 @@
+import { foo } from './foo';
+
+var f;
+f = foo;
+f.wasMutated = true;
+
+export var bar = 'whatever';
diff --git a/test/function/tracks-late-alias-mutations/foo.js b/test/function/tracks-late-alias-mutations/foo.js
new file mode 100644
index 0000000..386f265
--- /dev/null
+++ b/test/function/tracks-late-alias-mutations/foo.js
@@ -0,0 +1 @@
+export var foo = {};
diff --git a/test/function/tracks-late-alias-mutations/main.js b/test/function/tracks-late-alias-mutations/main.js
new file mode 100644
index 0000000..7cf7ee2
--- /dev/null
+++ b/test/function/tracks-late-alias-mutations/main.js
@@ -0,0 +1,4 @@
+import { foo } from './foo';
+import { bar } from './bar';
+
+assert.ok( foo.wasMutated );