mirror of
https://github.com/pulsar-edit/pulsar.git
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299 lines
9.2 KiB
JavaScript
299 lines
9.2 KiB
JavaScript
const TextEditor = require('../src/text-editor');
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describe('Selection', () => {
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let buffer, editor, selection;
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beforeEach(() => {
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buffer = atom.project.bufferForPathSync('sample.js');
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editor = new TextEditor({ buffer, tabLength: 2 });
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selection = editor.getLastSelection();
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});
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afterEach(() => buffer.destroy());
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describe('.deleteSelectedText()', () => {
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describe('when nothing is selected', () => {
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it('deletes nothing', () => {
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selection.setBufferRange([[0, 3], [0, 3]]);
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selection.deleteSelectedText();
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expect(buffer.lineForRow(0)).toBe('var quicksort = function () {');
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});
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});
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describe('when one line is selected', () => {
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it('deletes selected text and clears the selection', () => {
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selection.setBufferRange([[0, 4], [0, 14]]);
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selection.deleteSelectedText();
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expect(buffer.lineForRow(0)).toBe('var = function () {');
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const endOfLine = buffer.lineForRow(0).length;
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selection.setBufferRange([[0, 0], [0, endOfLine]]);
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selection.deleteSelectedText();
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expect(buffer.lineForRow(0)).toBe('');
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expect(selection.isEmpty()).toBeTruthy();
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});
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});
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describe('when multiple lines are selected', () => {
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it('deletes selected text and clears the selection', () => {
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selection.setBufferRange([[0, 1], [2, 39]]);
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selection.deleteSelectedText();
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expect(buffer.lineForRow(0)).toBe('v;');
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expect(selection.isEmpty()).toBeTruthy();
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});
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});
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describe('when the cursor precedes the tail', () => {
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it('deletes selected text and clears the selection', () => {
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selection.cursor.setScreenPosition([0, 13]);
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selection.selectToScreenPosition([0, 4]);
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selection.delete();
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expect(buffer.lineForRow(0)).toBe('var = function () {');
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expect(selection.isEmpty()).toBeTruthy();
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});
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});
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});
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describe('.isReversed()', () => {
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it('returns true if the cursor precedes the tail', () => {
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selection.cursor.setScreenPosition([0, 20]);
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selection.selectToScreenPosition([0, 10]);
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expect(selection.isReversed()).toBeTruthy();
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selection.selectToScreenPosition([0, 25]);
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expect(selection.isReversed()).toBeFalsy();
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});
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});
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describe('.selectLine(row)', () => {
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describe('when passed a row', () => {
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it('selects the specified row', () => {
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selection.setBufferRange([[2, 4], [3, 4]]);
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selection.selectLine(5);
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expect(selection.getBufferRange()).toEqual([[5, 0], [6, 0]]);
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});
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});
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describe('when not passed a row', () => {
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it('selects all rows spanned by the selection', () => {
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selection.setBufferRange([[2, 4], [3, 4]]);
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selection.selectLine();
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expect(selection.getBufferRange()).toEqual([[2, 0], [4, 0]]);
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});
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});
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});
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describe("when the selection's range is moved", () => {
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it('notifies ::onDidChangeRange observers', () => {
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selection.setBufferRange([[2, 0], [2, 10]]);
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const changeScreenRangeHandler = jasmine.createSpy(
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'changeScreenRangeHandler'
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);
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selection.onDidChangeRange(changeScreenRangeHandler);
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buffer.insert([2, 5], 'abc');
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expect(changeScreenRangeHandler).toHaveBeenCalled();
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expect(
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changeScreenRangeHandler.mostRecentCall.args[0]
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).not.toBeUndefined();
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});
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});
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describe("when only the selection's tail is moved (regression)", () => {
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it('notifies ::onDidChangeRange observers', () => {
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selection.setBufferRange([[2, 0], [2, 10]], { reversed: true });
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const changeScreenRangeHandler = jasmine.createSpy(
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'changeScreenRangeHandler'
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);
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selection.onDidChangeRange(changeScreenRangeHandler);
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buffer.insert([2, 5], 'abc');
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expect(changeScreenRangeHandler).toHaveBeenCalled();
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expect(
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changeScreenRangeHandler.mostRecentCall.args[0]
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).not.toBeUndefined();
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});
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});
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describe('when the selection is destroyed', () => {
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it('destroys its marker', () => {
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selection.setBufferRange([[2, 0], [2, 10]]);
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const { marker } = selection;
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selection.destroy();
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expect(marker.isDestroyed()).toBeTruthy();
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});
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});
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describe('.insertText(text, options)', () => {
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it('allows pasting white space only lines when autoIndent is enabled', () => {
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selection.setBufferRange([[0, 0], [0, 0]]);
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selection.insertText(' \n \n\n', { autoIndent: true });
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expect(buffer.lineForRow(0)).toBe(' ');
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expect(buffer.lineForRow(1)).toBe(' ');
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expect(buffer.lineForRow(2)).toBe('');
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});
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it('auto-indents if only a newline is inserted', () => {
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selection.setBufferRange([[2, 0], [3, 0]]);
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selection.insertText('\n', { autoIndent: true });
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expect(buffer.lineForRow(2)).toBe(' ');
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});
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it('auto-indents if only a carriage return + newline is inserted', () => {
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selection.setBufferRange([[2, 0], [3, 0]]);
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selection.insertText('\r\n', { autoIndent: true });
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expect(buffer.lineForRow(2)).toBe(' ');
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});
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it('does not adjust the indent of trailing lines if preserveTrailingLineIndentation is true', () => {
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selection.setBufferRange([[5, 0], [5, 0]]);
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selection.insertText(' foo\n bar\n', {
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preserveTrailingLineIndentation: true,
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indentBasis: 1
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});
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expect(buffer.lineForRow(6)).toBe(' bar');
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});
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});
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describe('.fold()', () => {
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it('folds the buffer range spanned by the selection', () => {
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selection.setBufferRange([[0, 3], [1, 6]]);
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selection.fold();
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expect(selection.getScreenRange()).toEqual([[0, 4], [0, 4]]);
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expect(selection.getBufferRange()).toEqual([[1, 6], [1, 6]]);
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expect(editor.lineTextForScreenRow(0)).toBe(
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`var${editor.displayLayer.foldCharacter}sort = function(items) {`
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);
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expect(editor.isFoldedAtBufferRow(0)).toBe(true);
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});
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it("doesn't create a fold when the selection is empty", () => {
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selection.setBufferRange([[0, 3], [0, 3]]);
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selection.fold();
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expect(selection.getScreenRange()).toEqual([[0, 3], [0, 3]]);
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expect(selection.getBufferRange()).toEqual([[0, 3], [0, 3]]);
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expect(editor.lineTextForScreenRow(0)).toBe(
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'var quicksort = function () {'
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);
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expect(editor.isFoldedAtBufferRow(0)).toBe(false);
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});
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});
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describe('within a read-only editor', () => {
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beforeEach(() => {
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editor.setReadOnly(true);
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selection.setBufferRange([[0, 0], [0, 13]]);
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});
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const modifications = [
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{
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name: 'insertText',
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op: opts => selection.insertText('yes', opts)
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},
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{
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name: 'backspace',
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op: opts => selection.backspace(opts)
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},
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{
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name: 'deleteToPreviousWordBoundary',
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op: opts => selection.deleteToPreviousWordBoundary(opts)
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},
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{
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name: 'deleteToNextWordBoundary',
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op: opts => selection.deleteToNextWordBoundary(opts)
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},
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{
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name: 'deleteToBeginningOfWord',
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op: opts => selection.deleteToBeginningOfWord(opts)
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},
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{
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name: 'deleteToBeginningOfLine',
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op: opts => selection.deleteToBeginningOfLine(opts)
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},
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{
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name: 'delete',
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op: opts => selection.delete(opts)
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},
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{
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name: 'deleteToEndOfLine',
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op: opts => selection.deleteToEndOfLine(opts)
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},
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{
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name: 'deleteToEndOfWord',
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op: opts => selection.deleteToEndOfWord(opts)
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},
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{
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name: 'deleteToBeginningOfSubword',
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op: opts => selection.deleteToBeginningOfSubword(opts)
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},
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{
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name: 'deleteToEndOfSubword',
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op: opts => selection.deleteToEndOfSubword(opts)
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},
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{
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name: 'deleteSelectedText',
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op: opts => selection.deleteSelectedText(opts)
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},
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{
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name: 'deleteLine',
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op: opts => selection.deleteLine(opts)
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},
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{
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name: 'joinLines',
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op: opts => selection.joinLines(opts)
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},
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{
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name: 'outdentSelectedRows',
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op: opts => selection.outdentSelectedRows(opts)
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},
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{
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name: 'autoIndentSelectedRows',
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op: opts => selection.autoIndentSelectedRows(opts)
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},
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{
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name: 'toggleLineComments',
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op: opts => selection.toggleLineComments(opts)
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},
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{
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name: 'cutToEndOfLine',
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op: opts => selection.cutToEndOfLine(false, opts)
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},
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{
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name: 'cutToEndOfBufferLine',
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op: opts => selection.cutToEndOfBufferLine(false, opts)
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},
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{
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name: 'cut',
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op: opts => selection.cut(false, false, opts.bypassReadOnly)
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},
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{
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name: 'indent',
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op: opts => selection.indent(opts)
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},
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{
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name: 'indentSelectedRows',
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op: opts => selection.indentSelectedRows(opts)
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}
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];
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describe('without bypassReadOnly', () => {
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for (const { name, op } of modifications) {
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it(`throws an error on ${name}`, () => {
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expect(op).toThrow();
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});
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}
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});
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describe('with bypassReadOnly', () => {
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for (const { name, op } of modifications) {
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it(`permits ${name}`, () => {
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op({ bypassReadOnly: true });
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});
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}
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});
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});
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});
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