diff --git a/test/form/side-effect-p/_config.js b/test/form/side-effect-p/_config.js
new file mode 100644
index 0000000..7a8d84b
--- /dev/null
+++ b/test/form/side-effect-p/_config.js
@@ -0,0 +1,3 @@
+module.exports = {
+	description: 'detects mutation of globals'
+};
diff --git a/test/form/side-effect-p/_expected/amd.js b/test/form/side-effect-p/_expected/amd.js
new file mode 100644
index 0000000..35e8591
--- /dev/null
+++ b/test/form/side-effect-p/_expected/amd.js
@@ -0,0 +1,11 @@
+define(function () { 'use strict';
+
+	var bool = true;
+
+	const hs = document.documentElement.style;
+
+	if ( bool ) {
+		hs.color = "#222"
+	}
+
+});
\ No newline at end of file
diff --git a/test/form/side-effect-p/_expected/cjs.js b/test/form/side-effect-p/_expected/cjs.js
new file mode 100644
index 0000000..08dc383
--- /dev/null
+++ b/test/form/side-effect-p/_expected/cjs.js
@@ -0,0 +1,9 @@
+'use strict';
+
+var bool = true;
+
+const hs = document.documentElement.style;
+
+if ( bool ) {
+	hs.color = "#222"
+}
\ No newline at end of file
diff --git a/test/form/side-effect-p/_expected/es.js b/test/form/side-effect-p/_expected/es.js
new file mode 100644
index 0000000..8e80199
--- /dev/null
+++ b/test/form/side-effect-p/_expected/es.js
@@ -0,0 +1,7 @@
+var bool = true;
+
+const hs = document.documentElement.style;
+
+if ( bool ) {
+	hs.color = "#222"
+}
\ No newline at end of file
diff --git a/test/form/side-effect-p/_expected/iife.js b/test/form/side-effect-p/_expected/iife.js
new file mode 100644
index 0000000..4ea2e35
--- /dev/null
+++ b/test/form/side-effect-p/_expected/iife.js
@@ -0,0 +1,12 @@
+(function () {
+	'use strict';
+
+	var bool = true;
+
+	const hs = document.documentElement.style;
+
+	if ( bool ) {
+		hs.color = "#222"
+	}
+
+}());
\ No newline at end of file
diff --git a/test/form/side-effect-p/_expected/umd.js b/test/form/side-effect-p/_expected/umd.js
new file mode 100644
index 0000000..f99ce83
--- /dev/null
+++ b/test/form/side-effect-p/_expected/umd.js
@@ -0,0 +1,15 @@
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? factory() :
+	typeof define === 'function' && define.amd ? define(factory) :
+	(factory());
+}(this, (function () { 'use strict';
+
+	var bool = true;
+
+	const hs = document.documentElement.style;
+
+	if ( bool ) {
+		hs.color = "#222"
+	}
+
+})));
\ No newline at end of file
diff --git a/test/form/side-effect-p/bool.js b/test/form/side-effect-p/bool.js
new file mode 100644
index 0000000..ff3177b
--- /dev/null
+++ b/test/form/side-effect-p/bool.js
@@ -0,0 +1 @@
+export default true;
diff --git a/test/form/side-effect-p/main.js b/test/form/side-effect-p/main.js
new file mode 100644
index 0000000..1ee7791
--- /dev/null
+++ b/test/form/side-effect-p/main.js
@@ -0,0 +1,7 @@
+import bool from './bool';
+
+const hs = document.documentElement.style;
+
+if ( bool ) {
+	hs.color = "#222"
+}