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Diffstat (limited to 'devtools/client/memory/test/xpcshell/test_dominator_trees_04.js')
-rw-r--r-- | devtools/client/memory/test/xpcshell/test_dominator_trees_04.js | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/devtools/client/memory/test/xpcshell/test_dominator_trees_04.js b/devtools/client/memory/test/xpcshell/test_dominator_trees_04.js new file mode 100644 index 0000000000..d9814590a9 --- /dev/null +++ b/devtools/client/memory/test/xpcshell/test_dominator_trees_04.js @@ -0,0 +1,91 @@ +/* Any copyright is dedicated to the Public Domain. + http://creativecommons.org/publicdomain/zero/1.0/ */ + +"use strict"; + +// Test that selecting the dominator tree view while in the middle of taking a +// snapshot properly kicks off fetching and computing dominator trees. + +const { + snapshotState: states, + dominatorTreeState, + viewState, +} = require("resource://devtools/client/memory/constants.js"); +const { + takeSnapshotAndCensus, +} = require("resource://devtools/client/memory/actions/snapshot.js"); +const { + changeView, +} = require("resource://devtools/client/memory/actions/view.js"); + +add_task(async function () { + const front = new StubbedMemoryFront(); + const heapWorker = new HeapAnalysesClient(); + await front.attach(); + + for (const intermediateSnapshotState of [ + states.SAVING, + states.READING, + states.READ, + ]) { + dumpn( + "Testing switching to the DOMINATOR_TREE view in the middle of the " + + `${intermediateSnapshotState} snapshot state` + ); + + const store = Store(); + const { getState, dispatch } = store; + + dispatch(takeSnapshotAndCensus(front, heapWorker)); + await waitUntilSnapshotState(store, [intermediateSnapshotState]); + + dispatch(changeView(viewState.DOMINATOR_TREE)); + equal( + getState().view.state, + viewState.DOMINATOR_TREE, + "We should now be in the DOMINATOR_TREE view" + ); + + // Wait for the dominator tree to start being computed. + await waitUntilState( + store, + state => state.snapshots[0] && state.snapshots[0].dominatorTree + ); + equal( + getState().snapshots[0].dominatorTree.state, + dominatorTreeState.COMPUTING, + "The dominator tree started computing" + ); + ok( + !getState().snapshots[0].dominatorTree.root, + "When the dominator tree is computing, we should not have its root" + ); + + // Wait for the dominator tree to finish computing and start being fetched. + await waitUntilState( + store, + state => + state.snapshots[0].dominatorTree.state === dominatorTreeState.FETCHING + ); + ok(true, "The dominator tree started fetching"); + ok( + !getState().snapshots[0].dominatorTree.root, + "When the dominator tree is fetching, we should not have its root" + ); + + // Wait for the dominator tree to finish being fetched. + await waitUntilState( + store, + state => + state.snapshots[0].dominatorTree.state === dominatorTreeState.LOADED + ); + ok(true, "The dominator tree was fetched"); + ok( + getState().snapshots[0].dominatorTree.root, + "When the dominator tree is loaded, we should have its root" + ); + } + + heapWorker.destroy(); + await front.detach(); +}); |