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7f37ba737c
* Update Copybara options in preparation for open-sourcing the source editor * Move files * Update paths * Remove source-editor module and checks for its existence * Explicitly mention CM6 license in files that contain code adapted from CM6 GitOrigin-RevId: 89b7cc2b409db01ad103198ccbd1b126ab56349b
115 lines
4.2 KiB
TypeScript
115 lines
4.2 KiB
TypeScript
import { expect } from 'chai'
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import { EditorView, DecorationSet } from '@codemirror/view'
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import { EditorState } from '@codemirror/state'
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import { buildDecorations } from '../../../../../frontend/js/features/source-editor/extensions/line-wrapping-indentation'
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const basicDoc = `
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\\begin{document}
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Test
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\\end{document}
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`
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const docLongLineNoIndentation = `
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\\begin{document}
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Test
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Hello one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four
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\\end{document}
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`
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const docLongLineWithIndentation = `
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\\begin{document}
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Test
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Hello one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four
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\\end{document}
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`
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const docLongLineWithLotsOfIndentation = `
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\\begin{document}
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Test
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Hello one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four
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Hello one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four
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Hello one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four
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Hello
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Hello one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four one two three four
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Hello
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\\end{document}
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`
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describe('line-wrapping-indentation', function () {
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describe('buildDecorations', function () {
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const _buildView = (doc: string) => {
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return new EditorView({
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state: EditorState.create({
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doc,
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}),
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})
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}
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const _toArray = (decorations: DecorationSet) => {
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const result = []
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const cursor = decorations.iter()
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while (cursor.value) {
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result.push({ from: cursor.from, to: cursor.to, value: cursor.value })
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cursor.next()
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}
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return result
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}
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describe('basic document', function () {
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it('should have no decorations', function () {
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const view = _buildView(basicDoc)
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const decorations = buildDecorations(view, 24)
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expect(decorations).to.exist
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expect(decorations.size).to.equal(0)
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})
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})
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describe('document with long lines, no indentation', function () {
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it('should have no decorations', function () {
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const view = _buildView(docLongLineNoIndentation)
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const decorations = buildDecorations(view, 24)
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expect(decorations).to.exist
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expect(decorations.size).to.equal(0)
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})
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})
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describe('document with long lines, with indentation', function () {
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it('should have a decoration', function () {
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const view = _buildView(docLongLineWithIndentation)
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const decorations = buildDecorations(view, 24)
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expect(decorations).to.exist
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expect(decorations.size).to.equal(1)
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const decorationItem = _toArray(decorations)[0]
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expect(decorationItem.from).to.equal(23)
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expect(decorationItem.to).to.equal(23)
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})
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})
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describe('document with long lines, with lots of indentation', function () {
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it('should have a decoration', function () {
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const view = _buildView(docLongLineWithLotsOfIndentation)
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const decorations = buildDecorations(view, 24)
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expect(decorations).to.exist
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expect(decorations.size).to.equal(4)
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const decorationsArray = _toArray(decorations)
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const expectedPositions = [23, 265, 507, 758]
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decorationsArray.forEach((item, index) => {
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expect(item.from).to.equal(expectedPositions[index])
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expect(item.to).to.equal(expectedPositions[index])
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})
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})
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})
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})
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})
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