/**
* Unit tests for FieldSelector utility
*/
import { FieldSelector } from '../../utils/field-selector.js';
describe('FieldSelector', () => {
describe('Predefined Selectors', () => {
it('should have MINIMAL selector with minimal fields', () => {
expect(FieldSelector.MINIMAL).toBe('id,$type');
});
it('should have BASIC selector with common fields', () => {
const basic = FieldSelector.BASIC;
expect(basic).toContain('id');
expect(basic).toContain('idReadable');
expect(basic).toContain('summary');
expect(basic).toContain('created');
expect(basic).toContain('updated');
});
it('should have GANTT selector optimized for Gantt charts', () => {
const gantt = FieldSelector.GANTT;
expect(gantt).toContain('id');
expect(gantt).toContain('idReadable');
expect(gantt).toContain('summary');
expect(gantt).toContain('customFields');
expect(gantt).toContain('created');
expect(gantt).toContain('resolved');
});
it('should have PROJECT selector with project fields', () => {
const project = FieldSelector.PROJECT;
expect(project).toContain('id');
expect(project).toContain('name');
expect(project).toContain('shortName');
});
it('should have USER selector with user fields', () => {
const user = FieldSelector.USER;
expect(user).toContain('id');
expect(user).toContain('login');
expect(user).toContain('fullName');
expect(user).toContain('email');
});
it('should have SPRINT selector with sprint fields', () => {
const sprint = FieldSelector.SPRINT;
expect(sprint).toContain('id');
expect(sprint).toContain('name');
expect(sprint).toContain('goal');
expect(sprint).toContain('start');
expect(sprint).toContain('finish');
});
it('should have WORK_ITEM selector with work item fields', () => {
const workItem = FieldSelector.WORK_ITEM;
expect(workItem).toContain('id');
expect(workItem).toContain('duration');
expect(workItem).toContain('date');
expect(workItem).toContain('author');
});
});
describe('forUseCase', () => {
it('should return correct selector for list use case', () => {
const selector = FieldSelector.forUseCase('list');
expect(selector).toBe(FieldSelector.BASIC);
});
it('should return correct selector for detail use case', () => {
const selector = FieldSelector.forUseCase('detail');
expect(selector).toContain('description');
expect(selector).toContain('reporter');
expect(selector).toContain('assignee');
});
it('should return correct selector for gantt use case', () => {
const selector = FieldSelector.forUseCase('gantt');
expect(selector).toBe(FieldSelector.GANTT);
});
it('should return BASIC selector for unknown use case', () => {
const selector = FieldSelector.forUseCase('minimal');
expect(selector).toBe(FieldSelector.MINIMAL);
});
});
describe('custom', () => {
it('should create custom selector from array', () => {
const fields = ['id', 'summary', 'state'];
const selector = FieldSelector.custom(fields);
expect(selector).toBe('id,summary,state');
});
it('should handle empty array', () => {
const selector = FieldSelector.custom([]);
expect(selector).toBe('');
});
it('should handle single field', () => {
const selector = FieldSelector.custom(['id']);
expect(selector).toBe('id');
});
it('should join multiple fields with commas', () => {
const fields = ['id', 'name', 'email', 'login'];
const selector = FieldSelector.custom(fields);
expect(selector).toBe('id,name,email,login');
});
});
describe('extend', () => {
it('should extend base selector with additional fields', () => {
const base = 'id,name';
const extended = FieldSelector.extend(base, ['email', 'login']);
expect(extended).toBe('id,name,email,login');
});
it('should handle empty additional fields', () => {
const base = 'id,name';
const extended = FieldSelector.extend(base, []);
// Implementation adds comma even for empty array
expect(extended).toBe('id,name,');
});
it('should handle empty base selector', () => {
const extended = FieldSelector.extend('', ['email', 'login']);
expect(extended).toBe(',email,login');
});
it('should extend MINIMAL selector', () => {
const extended = FieldSelector.extend(FieldSelector.MINIMAL, ['name', 'email']);
expect(extended).toContain('id');
expect(extended).toContain('$type');
expect(extended).toContain('name');
expect(extended).toContain('email');
});
it('should extend USER selector with custom fields', () => {
const extended = FieldSelector.extend(FieldSelector.USER, ['banned', 'online']);
expect(extended).toContain('id');
expect(extended).toContain('login');
expect(extended).toContain('banned');
expect(extended).toContain('online');
});
});
describe('Payload Reduction', () => {
it('should significantly reduce payload size for Gantt queries', () => {
// GANTT selector only includes essential fields
const ganttFields = FieldSelector.GANTT.split(',').length;
// Should be less than 15 fields (80% reduction from 50)
expect(ganttFields).toBeLessThan(15);
});
it('should have minimal overhead for MINIMAL selector', () => {
const minimalFields = FieldSelector.MINIMAL.split(',').length;
expect(minimalFields).toBe(2); // Only id and $type
});
});
});
