Add m-esr52 at 52.6.0

1 files changed, 59 insertions, 0 deletions

diff --git a/devtools/client/webaudioeditor/test/browser_wa_destroy-node-01.js b/devtools/client/webaudioeditor/test/browser_wa_destroy-node-01.js
new file mode 100644
index 000000000..d7dde4d97
--- /dev/null
+++ b/devtools/client/webaudioeditor/test/browser_wa_destroy-node-01.js
@@ -0,0 +1,59 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Tests that the destruction node event is fired and that the nodes are no
+ * longer stored internally in the tool, that the graph is updated properly, and
+ * that selecting a soon-to-be dead node clears the inspector.
+ *
+ * All done in one test since this test takes a few seconds to clear GC.
+ */
+
+add_task(function* () {
+  let { target, panel } = yield initWebAudioEditor(DESTROY_NODES_URL);
+  let { panelWin } = panel;
+  let { gFront, $, $$, gAudioNodes } = panelWin;
+
+  let started = once(gFront, "start-context");
+
+  let events = Promise.all([
+    getNSpread(gAudioNodes, "add", 13),
+    waitForGraphRendered(panelWin, 13, 2)
+  ]);
+  reload(target);
+  let [created] = yield events;
+
+  // Flatten arrays of event arguments and take the first (AudioNodeModel)
+  // and get its ID.
+  let actorIDs = created.map(ev => ev[0].id);
+
+  // Click a soon-to-be dead buffer node
+  yield clickGraphNode(panelWin, actorIDs[5]);
+
+  let destroyed = getN(gAudioNodes, "remove", 10);
+
+  // Force a CC in the child process to collect the orphaned nodes.
+  forceNodeCollection();
+
+  // Wait for destruction and graph to re-render
+  yield Promise.all([destroyed, waitForGraphRendered(panelWin, 3, 2)]);
+
+  // Test internal storage
+  is(panelWin.gAudioNodes.length, 3, "All nodes should be GC'd except one gain, osc and dest node.");
+
+  // Test graph rendering
+  ok(findGraphNode(panelWin, actorIDs[0]), "dest should be in graph");
+  ok(findGraphNode(panelWin, actorIDs[1]), "osc should be in graph");
+  ok(findGraphNode(panelWin, actorIDs[2]), "gain should be in graph");
+
+  let { nodes, edges } = countGraphObjects(panelWin);
+
+  is(nodes, 3, "Only 3 nodes rendered in graph.");
+  is(edges, 2, "Only 2 edges rendered in graph.");
+
+  // Test that the inspector reset to no node selected
+  ok(isVisible($("#web-audio-editor-details-pane-empty")),
+    "InspectorView empty message should show if the currently selected node gets collected.");
+
+  yield teardown(target);
+});