calendar due date

src/modules/issue/application/use-cases/list-calendar-issues/list-calendar-issues.use-case.spec.ts

@@ -0,0 +1,88 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+import type { IIssueRepository } from '../../../domain/repositories/issue.repository.interface.js';
+import { Issue } from '../../../domain/entities/issue.entity.js';
+import { InvalidCalendarRangeException } from '../../../domain/exceptions/invalid-calendar-range.exception.js';
+import { ListCalendarIssuesUseCase } from './list-calendar-issues.use-case.js';
+import { ListCalendarIssuesQuery } from './list-calendar-issues.query.js';
+import type { IssueUserExpanderService } from '../../services/issue-user-expander.service.js';
+import type { IssueWithUsersDto } from '../../dto/issue-with-users.dto.js';
+
+const FROM = new Date('2026-09-28T00:00:00+03:00');
+const TO = new Date('2026-11-09T00:00:00+03:00');
+
+const buildIssue = (id: number) =>
+  Issue.reconstitute({
+    id,
+    key: `ISSUE-${id}`,
+    title: `Issue ${id}`,
+    content: null,
+    status: 'OPEN',
+    priority: 0,
+    assignee: null,
+    reporter: 'user-1',
+    projectId: 'project-1',
+    dueDate: new Date('2026-10-15T12:00:00Z'),
+    createdAt: new Date(),
+    updatedAt: new Date(),
+  });
+
+describe('ListCalendarIssuesUseCase', () => {
+  let repository: IIssueRepository;
+  let issueUserExpander: IssueUserExpanderService;
+  let useCase: ListCalendarIssuesUseCase;
+
+  beforeEach(() => {
+    repository = {
+      findById: vi.fn(),
+      findByCKey: vi.fn(),
+      findAll: vi.fn(),
+      findByDueDateRange: vi.fn(),
+      countByStatus: vi.fn(),
+      create: vi.fn(),
+      update: vi.fn(),
+      delete: vi.fn(),
+    };
+    issueUserExpander = {
+      expandAll: vi.fn(async (issues: Issue[]) => issues.map((issue) => ({ id: issue.id }) as IssueWithUsersDto)),
+    } as unknown as IssueUserExpanderService;
+    useCase = new ListCalendarIssuesUseCase(repository, issueUserExpander);
+  });
+
+  it('forwards the range and filters, asking for one issue more than the limit', async () => {
+    vi.mocked(repository.findByDueDateRange).mockResolvedValue([buildIssue(1), buildIssue(2)]);
+
+    const result = await useCase.execute(
+      new ListCalendarIssuesQuery('user-1', FROM, TO, 'project-1', ['OPEN'], 'user-2'),
+    );
+
+    expect(repository.findByDueDateRange).toHaveBeenCalledWith({
+      from: FROM,
+      to: TO,
+      limit: ListCalendarIssuesUseCase.MAX_ISSUES + 1,
+      userId: 'user-1',
+      projectId: 'project-1',
+      status: ['OPEN'],
+      assigneeId: 'user-2',
+    });
+    expect(result).toEqual({ list: [{ id: 1 }, { id: 2 }], truncated: false });
+  });
+
+  it('cuts the list to the limit and marks it as truncated', async () => {
+    const issues = Array.from({ length: ListCalendarIssuesUseCase.MAX_ISSUES + 1 }, (_, index) =>
+      buildIssue(index + 1),
+    );
+    vi.mocked(repository.findByDueDateRange).mockResolvedValue(issues);
+
+    const result = await useCase.execute(new ListCalendarIssuesQuery('user-1', FROM, TO));
+
+    expect(result.truncated).toBe(true);
+    expect(result.list).toHaveLength(ListCalendarIssuesUseCase.MAX_ISSUES);
+  });
+
+  it('rejects an invalid range without querying the repository', async () => {
+    await expect(useCase.execute(new ListCalendarIssuesQuery('user-1', TO, FROM))).rejects.toThrow(
+      InvalidCalendarRangeException,
+    );
+    expect(repository.findByDueDateRange).not.toHaveBeenCalled();
+  });
+});