1 files changed, 49 insertions, 0 deletions
diff --git a/devtools/client/memory/test/unit/test_action-clear-snapshots_04.js b/devtools/client/memory/test/unit/test_action-clear-snapshots_04.js
new file mode 100644
index 000000000..f5b316b1a
--- /dev/null
+++ b/devtools/client/memory/test/unit/test_action-clear-snapshots_04.js
@@ -0,0 +1,49 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Test clearSnapshots deletes several snapshots
+
+let { takeSnapshotAndCensus, clearSnapshots } = require("devtools/client/memory/actions/snapshot");
+let { snapshotState: states, actions, treeMapState } = require("devtools/client/memory/constants");
+
+function run_test() {
+  run_next_test();
+}
+
+add_task(function* () {
+  let front = new StubbedMemoryFront();
+  let heapWorker = new HeapAnalysesClient();
+  yield front.attach();
+  let store = Store();
+  const { getState, dispatch } = store;
+
+  ok(true, "create 3 snapshots with a saved census");
+  dispatch(takeSnapshotAndCensus(front, heapWorker));
+  dispatch(takeSnapshotAndCensus(front, heapWorker));
+  dispatch(takeSnapshotAndCensus(front, heapWorker));
+  yield waitUntilCensusState(store, snapshot => snapshot.treeMap,
+                             [treeMapState.SAVED, treeMapState.SAVED,
+                              treeMapState.SAVED]);
+  ok(true, "snapshots created with a saved census");
+
+  ok(true, "set first snapshot state to error");
+  let id = getState().snapshots[0].id;
+  dispatch({ type: actions.SNAPSHOT_ERROR, id, error: new Error("_") });
+  yield waitUntilSnapshotState(store,
+    [states.ERROR, states.READ, states.READ]);
+  ok(true, "first snapshot set to error state");
+
+  ok(true, "dispatch clearSnapshots action");
+  let deleteEvents = Promise.all([
+    waitUntilAction(store, actions.DELETE_SNAPSHOTS_START),
+    waitUntilAction(store, actions.DELETE_SNAPSHOTS_END)
+  ]);
+  dispatch(clearSnapshots(heapWorker));
+  yield deleteEvents;
+  ok(true, "received delete snapshots events");
+
+  equal(getState().snapshots.length, 0, "no snapshot remaining");
+
+  heapWorker.destroy();
+  yield front.detach();
+});