integration tests

tests/integration/leagues/creation/league-create-error.test.ts

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+import { describe, it, expect, beforeEach } from 'vitest';
+import { LeaguesTestContext } from '../LeaguesTestContext';
+import { LeagueCreateCommand } from '../../../../core/leagues/application/ports/LeagueCreateCommand';
+import { InMemoryLeagueRepository } from '../../../../adapters/leagues/persistence/inmemory/InMemoryLeagueRepository';
+import { CreateLeagueUseCase } from '../../../../core/leagues/application/use-cases/CreateLeagueUseCase';
+
+describe('League Creation - Error Handling', () => {
+  let context: LeaguesTestContext;
+
+  beforeEach(() => {
+    context = new LeaguesTestContext();
+    context.clear();
+  });
+
+  it('should throw error when driver ID is invalid', async () => {
+    const command: LeagueCreateCommand = {
+      name: 'Test League',
+      visibility: 'public',
+      ownerId: '',
+      approvalRequired: false,
+      lateJoinAllowed: false,
+      bonusPointsEnabled: false,
+      penaltiesEnabled: false,
+      protestsEnabled: false,
+      appealsEnabled: false,
+    };
+
+    await expect(context.createLeagueUseCase.execute(command)).rejects.toThrow('Owner ID is required');
+    expect(context.eventPublisher.getLeagueCreatedEventCount()).toBe(0);
+  });
+
+  it('should throw error when league name is empty', async () => {
+    const command: LeagueCreateCommand = {
+      name: '',
+      visibility: 'public',
+      ownerId: 'driver-123',
+      approvalRequired: false,
+      lateJoinAllowed: false,
+      bonusPointsEnabled: false,
+      penaltiesEnabled: false,
+      protestsEnabled: false,
+      appealsEnabled: false,
+    };
+
+    await expect(context.createLeagueUseCase.execute(command)).rejects.toThrow();
+    expect(context.eventPublisher.getLeagueCreatedEventCount()).toBe(0);
+  });
+
+  it('should throw error when repository throws error', async () => {
+    const errorRepo = new InMemoryLeagueRepository();
+    errorRepo.create = async () => { throw new Error('Database error'); };
+    const errorUseCase = new CreateLeagueUseCase(errorRepo, context.eventPublisher);
+
+    const command: LeagueCreateCommand = {
+      name: 'Test League',
+      visibility: 'public',
+      ownerId: 'driver-123',
+      approvalRequired: false,
+      lateJoinAllowed: false,
+      bonusPointsEnabled: false,
+      penaltiesEnabled: false,
+      protestsEnabled: false,
+      appealsEnabled: false,
+    };
+
+    await expect(errorUseCase.execute(command)).rejects.toThrow('Database error');
+    expect(context.eventPublisher.getLeagueCreatedEventCount()).toBe(0);
+  });
+});