Dactyloidae/devtools/client/memory/test/unit/test_action-take-census.js

59 lines
2.2 KiB
JavaScript

/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
/**
* Tests the async reducer responding to the action `takeCensus(heapWorker, snapshot)`
*/
var { snapshotState: states, censusDisplays, censusState, censusState, viewState } = require("devtools/client/memory/constants");
var actions = require("devtools/client/memory/actions/snapshot");
var { changeView } = require("devtools/client/memory/actions/view");
function run_test() {
run_next_test();
}
// This tests taking a census on a snapshot that is still being read, which
// triggers an assertion failure.
EXPECTED_DTU_ASSERT_FAILURE_COUNT = 1;
add_task(function* () {
let front = new StubbedMemoryFront();
let heapWorker = new HeapAnalysesClient();
yield front.attach();
let store = Store();
store.dispatch(changeView(viewState.CENSUS));
store.dispatch(actions.takeSnapshot(front));
yield waitUntilState(store, () => {
let snapshots = store.getState().snapshots;
return snapshots.length === 1 && snapshots[0].state === states.SAVED;
});
let snapshot = store.getState().snapshots[0];
equal(snapshot.census, null, "No census data exists yet on the snapshot.");
// Test error case of wrong state.
store.dispatch(actions.takeCensus(heapWorker, snapshot.id));
yield waitUntilState(store, () => store.getState().errors.length === 1);
dumpn("Found error: " + store.getState().errors[0]);
ok(/Assertion failure/.test(store.getState().errors[0]),
"Error thrown when taking a census of a snapshot that has not been read.");
store.dispatch(actions.readSnapshot(heapWorker, snapshot.id));
yield waitUntilState(store, () => store.getState().snapshots[0].state === states.READ);
store.dispatch(actions.takeCensus(heapWorker, snapshot.id));
yield waitUntilCensusState(store, s => s.census, [censusState.SAVING]);
yield waitUntilCensusState(store, s => s.census, [censusState.SAVED]);
snapshot = store.getState().snapshots[0];
ok(snapshot.census, "Snapshot has census after saved census");
ok(snapshot.census.report.children.length, "Census is in tree node form");
equal(snapshot.census.display, censusDisplays.coarseType,
"Snapshot stored correct display used for the census");
});