1 files changed, 99 insertions, 0 deletions
diff --git a/devtools/client/memory/test/browser/browser_memory_keyboard-snapshot-list.js b/devtools/client/memory/test/browser/browser_memory_keyboard-snapshot-list.js
new file mode 100644
index 000000000..eb7cb8aca
--- /dev/null
+++ b/devtools/client/memory/test/browser/browser_memory_keyboard-snapshot-list.js
@@ -0,0 +1,99 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Test that using ACCEL+UP/DOWN, the user can navigate between snapshots.
+
+"use strict";
+
+const {
+  snapshotState,
+  viewState,
+  censusState
+} = require("devtools/client/memory/constants");
+const {
+  takeSnapshotAndCensus
+} = require("devtools/client/memory/actions/snapshot");
+const { changeView } = require("devtools/client/memory/actions/view");
+
+const TEST_URL = "http://example.com/browser/devtools/client/memory/test/browser/doc_steady_allocation.html";
+
+this.test = makeMemoryTest(TEST_URL, function* ({ panel }) {
+  // Creating snapshots already takes ~25 seconds on linux 32 debug machines
+  // which makes the test very likely to go over the allowed timeout
+  requestLongerTimeout(2);
+
+  const heapWorker = panel.panelWin.gHeapAnalysesClient;
+  const front = panel.panelWin.gFront;
+  const store = panel.panelWin.gStore;
+  const { dispatch } = store;
+  const doc = panel.panelWin.document;
+
+  dispatch(changeView(viewState.CENSUS));
+
+  info("Take 3 snapshots");
+  dispatch(takeSnapshotAndCensus(front, heapWorker));
+  dispatch(takeSnapshotAndCensus(front, heapWorker));
+  dispatch(takeSnapshotAndCensus(front, heapWorker));
+
+  yield waitUntilState(store, state =>
+    state.snapshots.length == 3 &&
+    state.snapshots.every(s => s.census && s.census.state === censusState.SAVED));
+  ok(true, "All snapshots censuses are in SAVED state");
+
+  yield waitUntilSnapshotSelected(store, 2);
+  ok(true, "Third snapshot selected after creating all snapshots.");
+
+  info("Press ACCEL+UP key, expect second snapshot selected.");
+  EventUtils.synthesizeKey("VK_UP", { accelKey: true }, panel.panelWin);
+  yield waitUntilSnapshotSelected(store, 1);
+  ok(true, "Second snapshot selected after alt+UP.");
+
+  info("Press ACCEL+UP key, expect first snapshot selected.");
+  EventUtils.synthesizeKey("VK_UP", { accelKey: true }, panel.panelWin);
+  yield waitUntilSnapshotSelected(store, 0);
+  ok(true, "First snapshot is selected after ACCEL+UP");
+
+  info("Check ACCEL+UP is a noop when the first snapshot is selected.");
+  EventUtils.synthesizeKey("VK_UP", { accelKey: true }, panel.panelWin);
+  // We assume the snapshot selection should be synchronous here.
+  is(getSelectedSnapshotIndex(store), 0, "First snapshot is still selected");
+
+  info("Press ACCEL+DOWN key, expect second snapshot selected.");
+  EventUtils.synthesizeKey("VK_DOWN", { accelKey: true }, panel.panelWin);
+  yield waitUntilSnapshotSelected(store, 1);
+  ok(true, "Second snapshot is selected after ACCEL+DOWN");
+
+  info("Click on first node.");
+  let firstNode = doc.querySelector(".tree .heap-tree-item-name");
+  EventUtils.synthesizeMouseAtCenter(firstNode, {}, panel.panelWin);
+  yield waitUntilState(store, state => state.snapshots[1].census.focused ===
+      state.snapshots[1].census.report.children[0]
+  );
+  ok(true, "First root is selected after click.");
+
+  info("Press DOWN key, expect second root focused.");
+  EventUtils.synthesizeKey("VK_DOWN", {}, panel.panelWin);
+  yield waitUntilState(store, state => state.snapshots[1].census.focused ===
+      state.snapshots[1].census.report.children[1]
+  );
+  ok(true, "Second root is selected after pressing DOWN.");
+  is(getSelectedSnapshotIndex(store), 1, "Second snapshot is still selected");
+
+  info("Press UP key, expect second root focused.");
+  EventUtils.synthesizeKey("VK_UP", {}, panel.panelWin);
+  yield waitUntilState(store, state => state.snapshots[1].census.focused ===
+      state.snapshots[1].census.report.children[0]
+  );
+  ok(true, "First root is selected after pressing UP.");
+  is(getSelectedSnapshotIndex(store), 1, "Second snapshot is still selected");
+
+  info("Press ACCEL+DOWN key, expect third snapshot selected.");
+  EventUtils.synthesizeKey("VK_DOWN", { accelKey: true }, panel.panelWin);
+  yield waitUntilSnapshotSelected(store, 2);
+  ok(true, "Thirdˆ snapshot is selected after ACCEL+DOWN");
+
+  info("Check ACCEL+DOWN is a noop when the last snapshot is selected.");
+  EventUtils.synthesizeKey("VK_DOWN", { accelKey: true }, panel.panelWin);
+  // We assume the snapshot selection should be synchronous here.
+  is(getSelectedSnapshotIndex(store), 2, "Third snapshot is still selected");
+});