add test for #83

diff --git a/test/basic.js b/test/basic.js
index f093f8e8eb3966ddf3d86f1e1a9febc09c86f860..20edcf0041010db28e9e7158733c20266006350a 100644 (file)
--- a/test/basic.js
+++ b/test/basic.js
@@ -70,4 +70,18 @@ test('storing negative number should cast to unsigned', function (t) {
   t.end()
 })
 
-// TODO: test write negative with
+test('test that memory is copied from array-like', function (t) {
+  var u = new Uint8Array(4)
+  var b = new B(u)
+  b[0] = 1
+  b[1] = 2
+  b[2] = 3
+  b[3] = 4
+
+  t.equal(u[0], 0)
+  t.equal(u[1], 0)
+  t.equal(u[2], 0)
+  t.equal(u[3], 0)
+
+  t.end()
+})