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joplin/packages/editor/CodeMirror/editorCommands/duplicateLine.test.ts

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import { EditorView } from '@codemirror/view';
import { EditorSelection } from '@codemirror/state';
import duplicateLine from './duplicateLine';
describe('duplicateLine', () => {
it('should duplicate line', () => {
const initialText = 'Hello\nWorld\n';
const editorView = new EditorView({
doc: initialText,
selection: EditorSelection.cursor(0),
});
duplicateLine(editorView);
const result = editorView.state.doc.toString();
expect(result).toBe('Hello\nHello\nWorld\n');
});
it('should duplicate range', () => {
const initialText = 'Hello\nWorld\n';
const editorView = new EditorView({
doc: initialText,
selection: EditorSelection.range(0, 8),
});
duplicateLine(editorView);
const result = editorView.state.doc.toString();
expect(result).toBe('Hello\nWoHello\nWorld\n');
});
});