1 files changed, 52 insertions, 0 deletions
diff --git a/devtools/client/memory/test/unit/test_action-filter-03.js b/devtools/client/memory/test/unit/test_action-filter-03.js
new file mode 100644
index 000000000..4d46d5361
--- /dev/null
+++ b/devtools/client/memory/test/unit/test_action-filter-03.js
@@ -0,0 +1,52 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Test that changing filter state in the middle of taking a snapshot results in
+// the properly fitered census.
+
+let { snapshotState: states, censusState, viewState } = require("devtools/client/memory/constants");
+let { setFilterString, setFilterStringAndRefresh } = require("devtools/client/memory/actions/filter");
+let { takeSnapshotAndCensus } = require("devtools/client/memory/actions/snapshot");
+let { changeView } = require("devtools/client/memory/actions/view");
+
+function run_test() {
+  run_next_test();
+}
+
+add_task(function* () {
+  let front = new StubbedMemoryFront();
+  let heapWorker = new HeapAnalysesClient();
+  yield front.attach();
+  let store = Store();
+  let { getState, dispatch } = store;
+
+  dispatch(changeView(viewState.CENSUS));
+
+  dispatch(takeSnapshotAndCensus(front, heapWorker));
+  yield waitUntilSnapshotState(store, [states.SAVING]);
+
+  dispatch(setFilterString("str"));
+
+  yield waitUntilCensusState(store, snapshot => snapshot.census,
+                             [censusState.SAVED]);
+  equal(getState().filter, "str",
+        "should want filtered trees");
+  equal(getState().snapshots[0].census.filter, "str",
+        "snapshot-we-were-in-the-middle-of-saving's census should be filtered");
+
+  dispatch(setFilterStringAndRefresh("", heapWorker));
+  yield waitUntilCensusState(store, snapshot => snapshot.census,
+                             [censusState.SAVING]);
+  ok(true, "changing filter string retriggers census");
+  ok(!getState().filter, "no longer filtering");
+
+  dispatch(setFilterString("obj"));
+  yield waitUntilCensusState(store, snapshot => snapshot.census,
+                             [censusState.SAVED]);
+  equal(getState().filter, "obj", "filtering for obj now");
+  equal(getState().snapshots[0].census.filter, "obj",
+        "census-we-were-in-the-middle-of-recomputing should be filtered again");
+
+  heapWorker.destroy();
+  yield front.detach();
+});