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[tests] Encode/decode doc with attribute changes

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Encode a document with a text and decode it into a new document. Then, test if the same change to both documents results in the same text deltas.
This commit is contained in:
Roman Rädle 2021-08-21 20:18:23 -07:00
parent 371f2b6d55
commit 57d6c6f831
1 changed files with 25 additions and 0 deletions
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25
tests/encoding.tests.js
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@ -106,3 +106,28 @@ export const testDiffStateVectorOfUpdateIgnoresSkips = tc => {
t.assert(state.get(ydoc.clientID) === 1)
t.assert(state.size === 1)
}
/**
* Encode a document with a text and decode it into a new document. Then, test if
* the same change to both documents results in the same text deltas.
*
* @param {t.TestCase} tc
*/
export const testEncodeDecode = async tc => {
const ydoc1 = new Doc()
const ydoc2 = new Doc()
const text1 = ydoc1.getText()
text1.insert(0, "\n\n\n")
text1.format(0, 3, { url: 'http://example.com' });
applyUpdate(ydoc2, encodeStateAsUpdate(ydoc1))
ydoc1.getText().format(1, 1, { url: 'http://docs.yjs.dev' });
ydoc2.getText().format(1, 1, { url: 'http://docs.yjs.dev' });
const text2 = ydoc2.getText()
const expectedResult = [
{ insert: '\n', attributes: { url: 'http://example.com' } },
{ insert: '\n', attributes: { url: 'http://docs.yjs.dev' } },
{ insert: '\n', attributes: { url: 'http://example.com' } }
]
t.compare(text1.toDelta(), expectedResult)
t.compare(text1.toDelta(), text2.toDelta())
}