1 files changed, 16 insertions, 0 deletions
diff --git a/toolkit/components/autocomplete/tests/unit/test_removeMatchAt.js b/toolkit/components/autocomplete/tests/unit/test_removeMatchAt.js
new file mode 100644
index 0000000000..c8abf0b832
--- /dev/null
+++ b/toolkit/components/autocomplete/tests/unit/test_removeMatchAt.js
@@ -0,0 +1,16 @@
+function run_test() {
+  let result = Cc["@mozilla.org/autocomplete/simple-result;1"].createInstance(
+    Ci.nsIAutoCompleteSimpleResult
+  );
+  result.appendMatch("a", "");
+  result.appendMatch("b", "");
+  result.removeMatchAt(0);
+  Assert.equal(result.matchCount, 1);
+  Assert.equal(result.getValueAt(0), "b");
+  result.appendMatch("c", "");
+  result.removeMatchAt(1);
+  Assert.equal(result.matchCount, 1);
+  Assert.equal(result.getValueAt(0), "b");
+  result.removeMatchAt(0);
+  Assert.equal(result.matchCount, 0);
+}