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import { buildModifyTextRequests } from './modifyText.js';
describe('buildModifyTextRequests', () => {
describe('insert mode', () => {
it('should produce a single insertText request with no delete', () => {
const requests = buildModifyTextRequests({ startIndex: 5, text: 'hello' });
expect(requests).toHaveLength(1);
expect(requests[0]).toHaveProperty('insertText');
expect(requests[0]).not.toHaveProperty('deleteContentRange');
expect(requests[0].insertText!.location!.index).toBe(5);
expect(requests[0].insertText!.text).toBe('hello');
});
});
describe('replace mode', () => {
it('should produce deleteContentRange then insertText in that order', () => {
const requests = buildModifyTextRequests({ startIndex: 5, endIndex: 10, text: 'hi' });
expect(requests).toHaveLength(2);
// First request must be delete (not insert — wrong order causes index shift)
expect(requests[0]).toHaveProperty('deleteContentRange');
expect(requests[0].deleteContentRange!.range!.startIndex).toBe(5);
expect(requests[0].deleteContentRange!.range!.endIndex).toBe(10);
// Second request is insert at the same startIndex
expect(requests[1]).toHaveProperty('insertText');
expect(requests[1].insertText!.location!.index).toBe(5);
expect(requests[1].insertText!.text).toBe('hi');
});
});
describe('format-only mode', () => {
it('should produce a single updateTextStyle using the original range', () => {
const requests = buildModifyTextRequests({
startIndex: 5,
endIndex: 10,
style: { bold: true },
});
expect(requests).toHaveLength(1);
expect(requests[0]).not.toHaveProperty('deleteContentRange');
expect(requests[0]).not.toHaveProperty('insertText');
expect(requests[0]).toHaveProperty('updateTextStyle');
expect(requests[0].updateTextStyle!.range!.startIndex).toBe(5);
expect(requests[0].updateTextStyle!.range!.endIndex).toBe(10);
expect(requests[0].updateTextStyle!.textStyle!.bold).toBe(true);
expect(requests[0].updateTextStyle!.fields).toBe('bold');
});
});
describe('replace + format mode', () => {
it('should adjust the format range to match the newly inserted text length', () => {
const requests = buildModifyTextRequests({
startIndex: 5,
endIndex: 10,
text: 'hi',
style: { bold: true },
});
expect(requests).toHaveLength(3);
// Delete original range
expect(requests[0]).toHaveProperty('deleteContentRange');
expect(requests[0].deleteContentRange!.range!.startIndex).toBe(5);
expect(requests[0].deleteContentRange!.range!.endIndex).toBe(10);
// Insert replacement text
expect(requests[1]).toHaveProperty('insertText');
expect(requests[1].insertText!.location!.index).toBe(5);
expect(requests[1].insertText!.text).toBe('hi');
// Format the NEW range [5, 7), NOT the original [5, 10)
expect(requests[2]).toHaveProperty('updateTextStyle');
expect(requests[2].updateTextStyle!.range!.startIndex).toBe(5);
expect(requests[2].updateTextStyle!.range!.endIndex).toBe(7); // 5 + "hi".length
expect(requests[2].updateTextStyle!.textStyle!.bold).toBe(true);
});
});
describe('insert + format mode', () => {
it('should insert text and format the inserted range', () => {
const requests = buildModifyTextRequests({
startIndex: 5,
text: 'hi',
style: { italic: true },
});
expect(requests).toHaveLength(2);
// No delete — this is insert-only
expect(requests[0]).toHaveProperty('insertText');
expect(requests[0]).not.toHaveProperty('deleteContentRange');
expect(requests[0].insertText!.location!.index).toBe(5);
expect(requests[0].insertText!.text).toBe('hi');
// Format the inserted range [5, 7)
expect(requests[1]).toHaveProperty('updateTextStyle');
expect(requests[1].updateTextStyle!.range!.startIndex).toBe(5);
expect(requests[1].updateTextStyle!.range!.endIndex).toBe(7); // 5 + "hi".length
expect(requests[1].updateTextStyle!.textStyle!.italic).toBe(true);
expect(requests[1].updateTextStyle!.fields).toBe('italic');
});
});
describe('tabId propagation', () => {
it('should include tabId on all request locations/ranges when provided', () => {
const requests = buildModifyTextRequests({
startIndex: 5,
endIndex: 10,
text: 'hi',
style: { bold: true },
tabId: 't1',
});
expect(requests).toHaveLength(3);
expect((requests[0].deleteContentRange!.range as any).tabId).toBe('t1');
expect((requests[1].insertText!.location as any).tabId).toBe('t1');
expect(requests[2].updateTextStyle!.range!.tabId).toBe('t1');
});
it('should not include tabId when not provided', () => {
const requests = buildModifyTextRequests({
startIndex: 5,
endIndex: 10,
text: 'hi',
style: { bold: true },
});
expect(requests).toHaveLength(3);
expect((requests[0].deleteContentRange!.range as any).tabId).toBeUndefined();
expect((requests[1].insertText!.location as any).tabId).toBeUndefined();
expect(requests[2].updateTextStyle!.range!.tabId).toBeUndefined();
});
});
describe('edge cases', () => {
it('should return empty array when neither text nor style is provided', () => {
const requests = buildModifyTextRequests({ startIndex: 5, endIndex: 10 });
expect(requests).toHaveLength(0);
});
it('should not generate delete when endIndex is provided but text is not', () => {
const requests = buildModifyTextRequests({
startIndex: 5,
endIndex: 10,
style: { underline: true },
});
expect(requests).toHaveLength(1);
expect(requests[0]).toHaveProperty('updateTextStyle');
expect(requests[0]).not.toHaveProperty('deleteContentRange');
});
it('should handle multiple style fields correctly', () => {
const requests = buildModifyTextRequests({
startIndex: 1,
endIndex: 5,
style: { bold: true, italic: true, fontSize: 14 },
});
expect(requests).toHaveLength(1);
const style = requests[0].updateTextStyle!;
expect(style.textStyle!.bold).toBe(true);
expect(style.textStyle!.italic).toBe(true);
expect(style.textStyle!.fontSize).toEqual({ magnitude: 14, unit: 'PT' });
expect(style.fields).toBe('bold,italic,fontSize');
});
});
});
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