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<!DOCTYPE html>
<!--
Copyright 2015 The Chromium Authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<link rel="import" href="/tracing/ui/analysis/stacked_pane.html">
<script>
'use strict';
tr.b.unittest.testSuite(function() {
test('rebuild', function() {
var pane = document.createElement('tr-ui-a-stacked-pane');
var didFireBuildPane;
pane.rebuildPane_ = function() {
didFireBuildPane = true;
};
function checkRebuild(expectedDidFireBuildPane) {
didFireBuildPane = false;
pane.rebuild();
assert.strictEqual(didFireBuildPane, expectedDidFireBuildPane);
}
// No rebuilds should occur when not scheduled.
checkRebuild(false);
checkRebuild(false);
// Single rebuild should occur when scheduled once.
pane.scheduleRebuildPane_();
checkRebuild(true);
checkRebuild(false);
// Only a single rebuild should occur even when scheduled multiple times.
pane.scheduleRebuildPane_();
pane.scheduleRebuildPane_();
checkRebuild(true);
checkRebuild(false);
});
test('changeChildPane', function() {
var pane = document.createElement('tr-ui-a-stacked-pane');
var didFireEvent;
pane.addEventListener('request-child-pane-change', function() {
didFireEvent = true;
});
didFireEvent = false;
pane.childPaneBuilder = undefined;
assert.isTrue(didFireEvent);
didFireEvent = false;
pane.childPaneBuilder = function() {
return undefined;
};
assert.isTrue(didFireEvent);
didFireEvent = false;
pane.childPaneBuilder = function() {
return document.createElement('tr-ui-a-stacked-pane');
};
assert.isTrue(didFireEvent);
});
});
</script>
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