205 lines
8.0 KiB
JavaScript
205 lines
8.0 KiB
JavaScript
import { Range, Position } from 'monaco-editor';
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import EditorLite from '~/editor/editor_lite';
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import EditorMarkdownExtension from '~/editor/editor_markdown_ext';
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describe('Markdown Extension for Editor Lite', () => {
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let editor;
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let instance;
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let editorEl;
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const firstLine = 'This is a';
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const secondLine = 'multiline';
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const thirdLine = 'string with some **markup**';
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const text = `${firstLine}\n${secondLine}\n${thirdLine}`;
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const filePath = 'foo.md';
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const setSelection = (startLineNumber = 1, startColumn = 1, endLineNumber = 1, endColumn = 1) => {
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const selection = new Range(startLineNumber, startColumn, endLineNumber, endColumn);
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instance.setSelection(selection);
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};
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const selectSecondString = () => setSelection(2, 1, 2, secondLine.length + 1); // select the whole second line
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const selectSecondAndThirdLines = () => setSelection(2, 1, 3, thirdLine.length + 1); // select second and third lines
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const selectionToString = () => instance.getSelection().toString();
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const positionToString = () => instance.getPosition().toString();
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beforeEach(() => {
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setFixtures('<div id="editor" data-editor-loading></div>');
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editorEl = document.getElementById('editor');
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editor = new EditorLite();
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instance = editor.createInstance({
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el: editorEl,
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blobPath: filePath,
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blobContent: text,
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});
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editor.use(EditorMarkdownExtension);
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});
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afterEach(() => {
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instance.dispose();
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editorEl.remove();
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});
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describe('getSelectedText', () => {
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it('does not fail if there is no selection and returns the empty string', () => {
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jest.spyOn(instance, 'getSelection');
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const resText = instance.getSelectedText();
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expect(instance.getSelection).toHaveBeenCalled();
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expect(resText).toBe('');
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});
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it.each`
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description | selection | expectedString
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${'same-line'} | ${[1, 1, 1, firstLine.length + 1]} | ${firstLine}
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${'two-lines'} | ${[1, 1, 2, secondLine.length + 1]} | ${`${firstLine}\n${secondLine}`}
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${'multi-lines'} | ${[1, 1, 3, thirdLine.length + 1]} | ${text}
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`('correctly returns selected text for $description', ({ selection, expectedString }) => {
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setSelection(...selection);
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const resText = instance.getSelectedText();
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expect(resText).toBe(expectedString);
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});
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it('accepts selection object that serves as a source instead of current selection', () => {
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selectSecondString();
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const firstLineSelection = new Range(1, 1, 1, firstLine.length + 1);
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const resText = instance.getSelectedText(firstLineSelection);
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expect(resText).toBe(firstLine);
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});
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});
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describe('replaceSelectedText', () => {
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const expectedStr = 'foo';
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it('replaces selected text with the supplied one', () => {
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selectSecondString();
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instance.replaceSelectedText(expectedStr);
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expect(instance.getValue()).toBe(`${firstLine}\n${expectedStr}\n${thirdLine}`);
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});
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it('prepends the supplied text if no text is selected', () => {
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instance.replaceSelectedText(expectedStr);
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expect(instance.getValue()).toBe(`${expectedStr}${firstLine}\n${secondLine}\n${thirdLine}`);
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});
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it('replaces selection with empty string if no text is supplied', () => {
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selectSecondString();
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instance.replaceSelectedText();
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expect(instance.getValue()).toBe(`${firstLine}\n\n${thirdLine}`);
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});
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it('puts cursor at the end of the new string and collapses selection by default', () => {
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selectSecondString();
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instance.replaceSelectedText(expectedStr);
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expect(positionToString()).toBe(`(2,${expectedStr.length + 1})`);
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expect(selectionToString()).toBe(
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`[2,${expectedStr.length + 1} -> 2,${expectedStr.length + 1}]`,
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);
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});
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it('puts cursor at the end of the new string and keeps selection if "select" is supplied', () => {
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const select = 'url';
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const complexReplacementString = `[${secondLine}](${select})`;
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selectSecondString();
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instance.replaceSelectedText(complexReplacementString, select);
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expect(positionToString()).toBe(`(2,${complexReplacementString.length + 1})`);
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expect(selectionToString()).toBe(`[2,1 -> 2,${complexReplacementString.length + 1}]`);
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});
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});
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describe('moveCursor', () => {
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const setPosition = endCol => {
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const currentPos = new Position(2, endCol);
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instance.setPosition(currentPos);
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};
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it.each`
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direction | condition | startColumn | shift | endPosition
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${'left'} | ${'negative'} | ${secondLine.length + 1} | ${-1} | ${`(2,${secondLine.length})`}
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${'left'} | ${'negative'} | ${secondLine.length} | ${secondLine.length * -1} | ${'(2,1)'}
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${'right'} | ${'positive'} | ${1} | ${1} | ${'(2,2)'}
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${'right'} | ${'positive'} | ${2} | ${secondLine.length} | ${`(2,${secondLine.length + 1})`}
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${'up'} | ${'positive'} | ${1} | ${[0, -1]} | ${'(1,1)'}
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${'top of file'} | ${'positive'} | ${1} | ${[0, -100]} | ${'(1,1)'}
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${'down'} | ${'negative'} | ${1} | ${[0, 1]} | ${'(3,1)'}
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${'end of file'} | ${'negative'} | ${1} | ${[0, 100]} | ${`(3,${thirdLine.length + 1})`}
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${'end of line'} | ${'too large'} | ${1} | ${secondLine.length + 100} | ${`(2,${secondLine.length + 1})`}
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${'start of line'} | ${'too low'} | ${1} | ${-100} | ${'(2,1)'}
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`(
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'moves cursor to the $direction if $condition supplied',
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({ startColumn, shift, endPosition }) => {
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setPosition(startColumn);
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if (Array.isArray(shift)) {
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instance.moveCursor(...shift);
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} else {
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instance.moveCursor(shift);
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}
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expect(positionToString()).toBe(endPosition);
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},
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);
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});
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describe('selectWithinSelection', () => {
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it('scopes down current selection to supplied text', () => {
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const selectedText = `${secondLine}\n${thirdLine}`;
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const toSelect = 'string';
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selectSecondAndThirdLines();
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expect(selectionToString()).toBe(`[2,1 -> 3,${thirdLine.length + 1}]`);
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instance.selectWithinSelection(toSelect, selectedText);
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expect(selectionToString()).toBe(`[3,1 -> 3,${toSelect.length + 1}]`);
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});
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it('does not fail when only `toSelect` is supplied and fetches the text from selection', () => {
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jest.spyOn(instance, 'getSelectedText');
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const toSelect = 'string';
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selectSecondAndThirdLines();
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instance.selectWithinSelection(toSelect);
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expect(instance.getSelectedText).toHaveBeenCalled();
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expect(selectionToString()).toBe(`[3,1 -> 3,${toSelect.length + 1}]`);
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});
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it('does nothing if no `toSelect` is supplied', () => {
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selectSecondAndThirdLines();
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const expectedPos = `(3,${thirdLine.length + 1})`;
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const expectedSelection = `[2,1 -> 3,${thirdLine.length + 1}]`;
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expect(positionToString()).toBe(expectedPos);
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expect(selectionToString()).toBe(expectedSelection);
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instance.selectWithinSelection();
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expect(positionToString()).toBe(expectedPos);
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expect(selectionToString()).toBe(expectedSelection);
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});
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it('does nothing if no selection is set in the editor', () => {
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const expectedPos = '(1,1)';
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const expectedSelection = '[1,1 -> 1,1]';
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const toSelect = 'string';
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expect(positionToString()).toBe(expectedPos);
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expect(selectionToString()).toBe(expectedSelection);
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instance.selectWithinSelection(toSelect);
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expect(positionToString()).toBe(expectedPos);
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expect(selectionToString()).toBe(expectedSelection);
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instance.selectWithinSelection();
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expect(positionToString()).toBe(expectedPos);
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expect(selectionToString()).toBe(expectedSelection);
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});
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});
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});
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