diff --git a/magic-number/magic-number-tests.ts b/magic-number/magic-number-tests.ts
new file mode 100644
index 000000000..ac0b59982
--- /dev/null
+++ b/magic-number/magic-number-tests.ts
@@ -0,0 +1,12 @@
+/// <reference path="../node/node.d.ts" />
+/// <reference path="magic-number.d.ts" />
+
+import fs = require('fs');
+import magic = require('magic-number');
+
+var buffer: any = new Buffer(100);
+buffer.write('7z', 'binary');
+fs.writeFile('test.love', buffer, function(err: any) {
+    console.log(magic.detectFile('test.love')); // => 'application/7z-x-compressed'
+    fs.unlinkSync('test.love');
+});