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Unit test to make sure scan is called immediately when observing custom node

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This commit is contained in:
Vjacheslav Trushkin 2020-08-12 10:39:06 +03:00
parent d31bd5fca4
commit 2a1b3a2b8b
1 changed files with 44 additions and 0 deletions
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44
packages/browser-tests/tests/21-observe-dom-test.ts
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@ -178,6 +178,50 @@ describe('Observe DOM', () => {
}, 100);
});
it('Adding node to observe after setting content', (done) => {
const baseNode = getNode('observe-dom');
const node = getNode('observe-dom');
// Set root and init observer
setRoot(baseNode);
initObserver(scanDOM);
// Test listRootNodes
let nodes = listRootNodes();
expect(nodes.length).to.be.equal(1);
expect(nodes[0].node).to.be.equal(baseNode);
expect(nodes[0].temporary).to.be.equal(false);
// Set HTML
baseNode.innerHTML =
'<p>Testing observing 2 nodes (1)</p>' +
'<span class="iconify" data-icon="mdi:home"></span>';
node.innerHTML =
'<p>Testing observing 2 nodes (2)</p>' +
'<span class="iconify" data-icon="mdi:home"></span>';
// Observe node: should run scan on next tick
observeNode(node);
// Test nodes
setTimeout(() => {
// Find elements
let elements = node.querySelectorAll('svg.iconify');
expect(elements.length).to.be.equal(1);
elements = baseNode.querySelectorAll('svg.iconify');
expect(elements.length).to.be.equal(1);
// Test for "home" icon contents
expect(node.innerHTML.indexOf('20v-6h4v6h5v')).to.not.be.equal(-1);
expect(baseNode.innerHTML.indexOf('20v-6h4v6h5v')).to.not.be.equal(
-1
);
done();
}, 100);
});
it('Stop observing node', (done) => {
const baseNode = getNode('observe-dom');
const node = getNode('observe-dom');