gecko-dev/devtools/client/webaudioeditor/test/browser_wa_destroy-node-01.js

60 строки
2.0 KiB
JavaScript

/* 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);
});