diff --git a/test/jiff-test.js b/test/jiff-test.js
index 14fd84a..ca2b59c 100644
--- a/test/jiff-test.js
+++ b/test/jiff-test.js
@@ -120,6 +120,15 @@ buster.testCase('jiff', {
 						}
 					}
 				}
+			},
+			'should generate replace': function() {
+				var a = [1, 2];
+				var b = [3, 2];
+
+				var patch = jiff.diff(a, b, { invertible: false });
+				assert.equals(patch.length, 1);
+				assert.equals(patch[0].op, 'replace');
+				assert.equals(b, jiff.patch(patch, a));
 			}
 		},