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Test Info: Warnings
- This test gets skipped with pattern: os == 'android'
- Manifest: devtools/client/memory/test/xpcshell/xpcshell.toml
/* Any copyright is dedicated to the Public Domain.
"use strict";
// Test that we can change the display with which we describe a dominator tree
// while the dominator tree is in the middle of being fetched.
const {
dominatorTreeState,
viewState,
labelDisplays,
treeMapState,
const {
setLabelDisplayAndRefresh,
const {
changeView,
const {
takeSnapshotAndCensus,
add_task(async function () {
const front = new StubbedMemoryFront();
const heapWorker = new HeapAnalysesClient();
await front.attach();
const store = Store();
const { getState, dispatch } = store;
dispatch(changeView(viewState.DOMINATOR_TREE));
dispatch(takeSnapshotAndCensus(front, heapWorker));
await waitUntilCensusState(store, s => s.treeMap, [treeMapState.SAVED]);
ok(
!getState().snapshots[0].dominatorTree,
"There shouldn't be a dominator tree model yet since it is not computed " +
"until we switch to the dominators view."
);
// Wait for the dominator tree to start fetching.
await waitUntilState(
store,
state =>
state.snapshots[0] &&
state.snapshots[0].dominatorTree &&
state.snapshots[0].dominatorTree.state === dominatorTreeState.FETCHING
);
ok(
getState().labelDisplay,
"We have a default display for describing nodes in a dominator tree"
);
equal(
getState().labelDisplay,
labelDisplays.coarseType,
"and the default is coarse type"
);
equal(
getState().labelDisplay,
getState().snapshots[0].dominatorTree.display,
"and the newly computed dominator tree has that display"
);
// Switch to the allocationStack display while we are still fetching the
// dominator tree.
dispatch(
setLabelDisplayAndRefresh(heapWorker, labelDisplays.allocationStack)
);
// Wait for the dominator tree to finish being fetched.
await waitUntilState(
store,
state =>
state.snapshots[0].dominatorTree.state === dominatorTreeState.LOADED
);
equal(
getState().snapshots[0].dominatorTree.display,
labelDisplays.allocationStack,
"The new dominator tree's display is allocationStack"
);
equal(
getState().labelDisplay,
labelDisplays.allocationStack,
"as is our requested dominator tree display"
);
heapWorker.destroy();
await front.detach();
});