gridpilot.gg/core/racing/application/use-cases/LeaveTeamUseCase.test.ts

import type { ApplicationErrorCode } from '@core/shared/errors/ApplicationErrorCode';
import { Logger } from 'vite';
import { beforeEach, describe, expect, it, vi, type Mock } from 'vitest';
import type { TeamMembershipRepository } from '../../domain/repositories/TeamMembershipRepository';
import type { TeamRepository } from '../../domain/repositories/TeamRepository';
import {
    LeaveTeamUseCase,
    type LeaveTeamErrorCode,
    type LeaveTeamInput,
} from './LeaveTeamUseCase';

describe('LeaveTeamUseCase', () => {
  let useCase: LeaveTeamUseCase;
  let teamRepository: { findById: Mock };
  let membershipRepository: {
    getMembership: Mock;
    removeMembership: Mock;
  };
  let logger: Logger;
  beforeEach(() => {
    teamRepository = {
      findById: vi.fn(),
    };
    membershipRepository = {
      getMembership: vi.fn(),
      removeMembership: vi.fn(),
    };
    logger = {
      debug: vi.fn(),
      info: vi.fn(),
      warn: vi.fn(),
      error: vi.fn(),
    } as unknown as Logger;
    useCase = new LeaveTeamUseCase(teamRepository as unknown as TeamRepository,
      membershipRepository as unknown as TeamMembershipRepository,
      logger);
  });

  it('should leave team successfully', async () => {
    const input: LeaveTeamInput = { teamId: 'team-1', driverId: 'driver-1' };

    teamRepository.findById.mockResolvedValue({ id: 'team-1' });
    const membership = {
      teamId: 'team-1',
      driverId: 'driver-1',
      role: 'driver',
      status: 'active',
      joinedAt: new Date(),
    };
    membershipRepository.getMembership.mockResolvedValue(membership);
    membershipRepository.removeMembership.mockResolvedValue(undefined);

    const result = await useCase.execute(input);

    expect(result.isOk()).toBe(true);
    const presented = result.unwrap();

    expect(presented.team.id).toBe('team-1');
    expect(presented.previousMembership).toEqual(membership);
  });

  it('should return error when team is not found', async () => {
    const input: LeaveTeamInput = { teamId: 'team-1', driverId: 'driver-1' };

    teamRepository.findById.mockResolvedValue(null);

    const result = await useCase.execute(input);

    expect(result.isErr()).toBe(true);
    const err = result.unwrapErr() as ApplicationErrorCode<
      LeaveTeamErrorCode,
      { message: string }
    >;
    expect(err.code).toBe('TEAM_NOT_FOUND');
    expect(err.details.message).toBe('Team team-1 not found');
    });

  it('should return error when not a member', async () => {
    const input: LeaveTeamInput = { teamId: 'team-1', driverId: 'driver-1' };

    teamRepository.findById.mockResolvedValue({ id: 'team-1' });
    membershipRepository.getMembership.mockResolvedValue(null);

    const result = await useCase.execute(input);

    expect(result.isErr()).toBe(true);
    const err = result.unwrapErr() as ApplicationErrorCode<
      LeaveTeamErrorCode,
      { message: string }
    >;
    expect(err.code).toBe('NOT_MEMBER');
    expect(err.details.message).toBe('Not a member of this team');
    });

  it('should return error when owner tries to leave', async () => {
    const input: LeaveTeamInput = { teamId: 'team-1', driverId: 'driver-1' };

    teamRepository.findById.mockResolvedValue({ id: 'team-1' });
    membershipRepository.getMembership.mockResolvedValue({
      teamId: 'team-1',
      driverId: 'driver-1',
      role: 'owner',
      status: 'active',
      joinedAt: new Date(),
    });

    const result = await useCase.execute(input);

    expect(result.isErr()).toBe(true);
    const err = result.unwrapErr() as ApplicationErrorCode<
      LeaveTeamErrorCode,
      { message: string }
    >;
    expect(err.code).toBe('OWNER_CANNOT_LEAVE');
    expect(err.details.message).toBe(
      'Team owner cannot leave. Transfer ownership or disband team first.',
    );
    });

  it('should return error on repository failure', async () => {
    const input: LeaveTeamInput = { teamId: 'team-1', driverId: 'driver-1' };
    const error = new Error('Repository error');

    teamRepository.findById.mockRejectedValue(error);

    const result = await useCase.execute(input);

    expect(result.isErr()).toBe(true);
    const err = result.unwrapErr() as ApplicationErrorCode<
      LeaveTeamErrorCode,
      { message: string }
    >;
    expect(err.code).toBe('REPOSITORY_ERROR');
    expect(err.details.message).toBe('Repository error');
    });
});