1 files changed, 23 insertions, 0 deletions
diff --git a/devtools/client/memory/test/unit/test_action-filter-01.js b/devtools/client/memory/test/unit/test_action-filter-01.js
new file mode 100644
index 000000000..e0894606d
--- /dev/null
+++ b/devtools/client/memory/test/unit/test_action-filter-01.js
@@ -0,0 +1,23 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Test setting the filter string.
+
+let { setFilterString } = require("devtools/client/memory/actions/filter");
+
+function run_test() {
+  run_next_test();
+}
+
+add_task(function* () {
+  let store = Store();
+  const { getState, dispatch } = store;
+
+  equal(getState().filter, null, "no filter by default");
+
+  dispatch(setFilterString("my filter"));
+  equal(getState().filter, "my filter", "now we have the expected filter");
+
+  dispatch(setFilterString(""));
+  equal(getState().filter, null, "no filter again");
+});