import { insertMarkdownText } from '~/lib/utils/text_markdown'; describe('init markdown', () => { let textArea; beforeAll(() => { textArea = document.createElement('textarea'); document.querySelector('body').appendChild(textArea); textArea.focus(); }); afterAll(() => { textArea.parentNode.removeChild(textArea); }); describe('textArea', () => { describe('without selection', () => { it('inserts the tag on an empty line', () => { const initialValue = ''; textArea.value = initialValue; textArea.selectionStart = 0; textArea.selectionEnd = 0; insertMarkdownText({ textArea, text: textArea.value, tag: '*', blockTag: null, selected: '', wrap: false, }); expect(textArea.value).toEqual(`${initialValue}* `); }); it('inserts the tag on a new line if the current one is not empty', () => { const initialValue = 'some text'; textArea.value = initialValue; textArea.setSelectionRange(initialValue.length, initialValue.length); insertMarkdownText({ textArea, text: textArea.value, tag: '*', blockTag: null, selected: '', wrap: false, }); expect(textArea.value).toEqual(`${initialValue}\n* `); }); it('inserts the tag on the same line if the current line only contains spaces', () => { const initialValue = ' '; textArea.value = initialValue; textArea.setSelectionRange(initialValue.length, initialValue.length); insertMarkdownText({ textArea, text: textArea.value, tag: '*', blockTag: null, selected: '', wrap: false, }); expect(textArea.value).toEqual(`${initialValue}* `); }); it('inserts the tag on the same line if the current line only contains tabs', () => { const initialValue = '\t\t\t'; textArea.value = initialValue; textArea.setSelectionRange(initialValue.length, initialValue.length); insertMarkdownText({ textArea, text: textArea.value, tag: '*', blockTag: null, selected: '', wrap: false, }); expect(textArea.value).toEqual(`${initialValue}* `); }); it('places the cursor inside the tags', () => { const start = 'lorem '; const end = ' ipsum'; const tag = '*'; textArea.value = `${start}${end}`; textArea.setSelectionRange(start.length, start.length); insertMarkdownText({ textArea, text: textArea.value, tag, blockTag: null, selected: '', wrap: true, }); expect(textArea.value).toEqual(`${start}**${end}`); // cursor placement should be between tags expect(textArea.selectionStart).toBe(start.length + tag.length); }); }); describe('with selection', () => { const text = 'initial selected value'; const selected = 'selected'; beforeEach(() => { textArea.value = text; const selectedIndex = text.indexOf(selected); textArea.setSelectionRange(selectedIndex, selectedIndex + selected.length); }); it('applies the tag to the selected value', () => { const selectedIndex = text.indexOf(selected); const tag = '*'; insertMarkdownText({ textArea, text: textArea.value, tag, blockTag: null, selected, wrap: true, }); expect(textArea.value).toEqual(text.replace(selected, `*${selected}*`)); // cursor placement should be after selection + 2 tag lengths expect(textArea.selectionStart).toBe(selectedIndex + selected.length + 2 * tag.length); }); it('replaces the placeholder in the tag', () => { insertMarkdownText({ textArea, text: textArea.value, tag: '[{text}](url)', blockTag: null, selected, wrap: false, }); expect(textArea.value).toEqual(text.replace(selected, `[${selected}](url)`)); }); describe('and text to be selected', () => { const tag = '[{text}](url)'; const select = 'url'; it('selects the text', () => { insertMarkdownText({ textArea, text: textArea.value, tag, blockTag: null, selected, wrap: false, select, }); const expectedText = text.replace(selected, `[${selected}](url)`); expect(textArea.value).toEqual(expectedText); expect(textArea.selectionStart).toEqual(expectedText.indexOf(select)); expect(textArea.selectionEnd).toEqual(expectedText.indexOf(select) + select.length); }); it('selects the right text when multiple tags are present', () => { const initialValue = `${tag} ${tag} ${selected}`; textArea.value = initialValue; const selectedIndex = initialValue.indexOf(selected); textArea.setSelectionRange(selectedIndex, selectedIndex + selected.length); insertMarkdownText({ textArea, text: textArea.value, tag, blockTag: null, selected, wrap: false, select, }); const expectedText = initialValue.replace(selected, `[${selected}](url)`); expect(textArea.value).toEqual(expectedText); expect(textArea.selectionStart).toEqual(expectedText.lastIndexOf(select)); expect(textArea.selectionEnd).toEqual(expectedText.lastIndexOf(select) + select.length); }); it('should support selected urls', () => { const expectedUrl = 'http://www.gitlab.com'; const expectedSelectionText = 'text'; const expectedText = `text [${expectedSelectionText}](${expectedUrl}) text`; const initialValue = `text ${expectedUrl} text`; textArea.value = initialValue; const selectedIndex = initialValue.indexOf(expectedUrl); textArea.setSelectionRange(selectedIndex, selectedIndex + expectedUrl.length); insertMarkdownText({ textArea, text: textArea.value, tag, blockTag: null, selected: expectedUrl, wrap: false, select, }); expect(textArea.value).toEqual(expectedText); expect(textArea.selectionStart).toEqual(expectedText.indexOf(expectedSelectionText, 1)); expect(textArea.selectionEnd).toEqual( expectedText.indexOf(expectedSelectionText, 1) + expectedSelectionText.length, ); }); }); }); }); describe('Ace Editor', () => { let editor; beforeEach(() => { editor = { getSelectionRange: () => ({ start: 0, end: 0, }), getValue: () => 'this is text \n in two lines', insert: () => {}, navigateLeft: () => {}, }; }); it('uses ace editor insert text when editor is passed in', () => { spyOn(editor, 'insert'); insertMarkdownText({ text: editor.getValue, tag: '*', blockTag: null, selected: '', wrap: false, editor, }); expect(editor.insert).toHaveBeenCalled(); }); it('adds block tags on line above and below selection', () => { spyOn(editor, 'insert'); const selected = 'this text \n is multiple \n lines'; const text = `before \n ${selected} \n after`; insertMarkdownText({ text, tag: '', blockTag: '***', selected, wrap: true, editor, }); expect(editor.insert).toHaveBeenCalledWith(`***\n${selected}\n***`); }); it('uses ace editor to navigate back tag length when nothing is selected', () => { spyOn(editor, 'navigateLeft'); insertMarkdownText({ text: editor.getValue, tag: '*', blockTag: null, selected: '', wrap: true, editor, }); expect(editor.navigateLeft).toHaveBeenCalledWith(1); }); it('ace editor does not navigate back when there is selected text', () => { spyOn(editor, 'navigateLeft'); insertMarkdownText({ text: editor.getValue, tag: '*', blockTag: null, selected: 'foobar', wrap: true, editor, }); expect(editor.navigateLeft).not.toHaveBeenCalled(); }); }); });