/**
* Database Integration Tests
* Comprehensive testing of database operations with real SQLite database
*/
import {
DatabaseIntegrationTestFramework,
setupDatabaseIntegrationTest,
databaseTestUtils,
TestDatabase,
TransactionTestResult
} from '../helpers/DatabaseIntegrationTestFramework';
describe('Database Integration Tests', () => {
const getTestDb = setupDatabaseIntegrationTest();
describe('Database Setup and Schema', () => {
test('should create and initialize real database', async () => {
const testDb = getTestDb();
expect(testDb).toBeDefined();
expect(testDb.db).toBeDefined();
expect(testDb.path).toMatch(/integration-test-.*\.db$/);
expect(typeof testDb.cleanup).toBe('function');
});
test('should initialize database schema successfully', async () => {
const testDb = getTestDb();
const schema = databaseTestUtils.getStandardTestSchema();
await expect(
DatabaseIntegrationTestFramework.initializeSchema(testDb, schema)
).resolves.not.toThrow();
// Verify schema was created
const schemaInfo = await DatabaseIntegrationTestFramework.getDatabaseSchema(testDb);
expect(schemaInfo.tables).toContain('documents');
expect(schemaInfo.tables).toContain('tasks');
expect(schemaInfo.tables).toContain('work_connections');
expect(schemaInfo.indexes.length).toBeGreaterThan(0);
});
test('should handle schema initialization errors gracefully', async () => {
const testDb = getTestDb();
const invalidSchema = ['INVALID SQL STATEMENT'];
await expect(
DatabaseIntegrationTestFramework.initializeSchema(testDb, invalidSchema)
).rejects.toThrow(/Schema initialization failed/);
});
});
describe('Migration Testing', () => {
test('should test database migrations successfully', async () => {
const testDb = getTestDb();
const migrationResult = await DatabaseIntegrationTestFramework.testMigrations(testDb);
expect(migrationResult.migrationsApplied).toBe(true);
expect(migrationResult.rollbackSuccess).toBe(true);
expect(migrationResult.schemaIntegrity).toBe(true);
});
test('should handle migration failures gracefully', async () => {
const testDb = getTestDb();
// Create a scenario where migration would fail
const { db } = testDb;
const runAsync = require('util').promisify(db.run.bind(db));
// Create a table that conflicts with migration
await runAsync(`CREATE TABLE migration_test (id TEXT PRIMARY KEY)`);
// The migration test should handle this conflict
const migrationResult = await DatabaseIntegrationTestFramework.testMigrations(testDb);
// Even with conflicts, the framework should provide meaningful results
expect(typeof migrationResult.migrationsApplied).toBe('boolean');
expect(typeof migrationResult.rollbackSuccess).toBe('boolean');
expect(typeof migrationResult.schemaIntegrity).toBe('boolean');
});
});
describe('Transaction Rollback Testing', () => {
test('should handle transaction rollbacks correctly', async () => {
const testDb = getTestDb();
await DatabaseIntegrationTestFramework.initializeSchema(
testDb,
databaseTestUtils.getStandardTestSchema()
);
const rollbackResult: TransactionTestResult = await DatabaseIntegrationTestFramework.testTransactionRollback(testDb);
expect(rollbackResult.success).toBe(true); // Should catch the intentional error
expect(rollbackResult.error).toBeDefined();
expect(rollbackResult.rollbackSuccess).toBe(true);
expect(rollbackResult.dataIntegrity).toBe(true);
});
test('should maintain data consistency during rollbacks', async () => {
const testDb = getTestDb();
await DatabaseIntegrationTestFramework.initializeSchema(
testDb,
databaseTestUtils.getStandardTestSchema()
);
// Insert initial test data
await databaseTestUtils.insertTestData(testDb);
// Test rollback scenario
const rollbackResult = await DatabaseIntegrationTestFramework.testTransactionRollback(testDb);
expect(rollbackResult.dataIntegrity).toBe(true);
// Verify original data is still intact
const { db } = testDb;
const allAsync = require('util').promisify(db.all.bind(db));
const documents = await allAsync(`SELECT COUNT(*) as count FROM documents`);
expect(documents[0].count).toBeGreaterThan(0); // Original data should remain
});
});
describe('Concurrent Operations Testing', () => {
test('should handle concurrent database operations safely', async () => {
const testDb = getTestDb();
await DatabaseIntegrationTestFramework.initializeSchema(
testDb,
databaseTestUtils.getStandardTestSchema()
);
const concurrencyResult = await DatabaseIntegrationTestFramework.testConcurrentOperations(
testDb,
5 // Moderate concurrency for test stability
);
expect(concurrencyResult.operationsCompleted).toBeGreaterThan(0);
expect(concurrencyResult.errors.length).toBeLessThanOrEqual(1); // Allow minimal errors
expect(concurrencyResult.dataConsistency).toBe(true);
});
test('should maintain data consistency under high concurrency', async () => {
const testDb = getTestDb();
await DatabaseIntegrationTestFramework.initializeSchema(
testDb,
databaseTestUtils.getStandardTestSchema()
);
const concurrencyResult = await DatabaseIntegrationTestFramework.testConcurrentOperations(
testDb,
10 // Higher concurrency
);
// Even with potential race conditions, data should remain consistent
expect(concurrencyResult.dataConsistency).toBe(true);
// Verify no major failures occurred
const errorRate = concurrencyResult.errors.length / 10;
expect(errorRate).toBeLessThan(0.3); // Less than 30% error rate
});
});
describe('Database Performance Testing', () => {
test('should measure database performance under load', async () => {
const testDb = getTestDb();
await DatabaseIntegrationTestFramework.initializeSchema(
testDb,
databaseTestUtils.getStandardTestSchema()
);
const performanceResult = await DatabaseIntegrationTestFramework.testDatabasePerformance(
testDb,
100 // Reasonable load for testing
);
// Verify performance metrics are reasonable
expect(performanceResult.insertPerformance.avgTimeMs).toBeLessThan(10); // <10ms per insert
expect(performanceResult.insertPerformance.opsPerSecond).toBeGreaterThan(10); // >10 ops/sec
expect(performanceResult.queryPerformance.avgTimeMs).toBeLessThan(50); // <50ms per query
expect(performanceResult.queryPerformance.opsPerSecond).toBeGreaterThan(1); // >1 query/sec
// Memory usage should be reasonable
expect(performanceResult.memoryUsage.heapUsed).toBeLessThan(100 * 1024 * 1024); // <100MB
});
test('should handle large dataset operations efficiently', async () => {
const testDb = getTestDb();
await DatabaseIntegrationTestFramework.initializeSchema(
testDb,
databaseTestUtils.getStandardTestSchema()
);
const performanceResult = await DatabaseIntegrationTestFramework.testDatabasePerformance(
testDb,
500 // Larger dataset
);
// Performance should remain reasonable even with larger datasets
expect(performanceResult.insertPerformance.avgTimeMs).toBeLessThan(20); // <20ms per insert
expect(performanceResult.queryPerformance.avgTimeMs).toBeLessThan(100); // <100ms per query
// Verify operations completed successfully
const { db } = testDb;
const getAsync = require('util').promisify(db.get.bind(db));
const count = await getAsync(`SELECT COUNT(*) as count FROM performance_test`);
expect(count.count).toBe(500);
});
});
describe('Real-World Database Scenarios', () => {
test('should handle complex multi-table operations', async () => {
const testDb = getTestDb();
await DatabaseIntegrationTestFramework.initializeSchema(
testDb,
databaseTestUtils.getStandardTestSchema()
);
await databaseTestUtils.insertTestData(testDb);
const { db } = testDb;
const runAsync = require('util').promisify(db.run.bind(db));
const allAsync = require('util').promisify(db.all.bind(db));
// Complex query with JOINs
const results = await allAsync(`
SELECT
d.title as document_title,
d.type as document_type,
wc.work_type,
wc.connection_strength,
wc.relevance_score
FROM documents d
JOIN work_connections wc ON d.id = wc.document_id
WHERE wc.connection_strength > 0.5
ORDER BY wc.relevance_score DESC
`);
expect(results.length).toBeGreaterThan(0);
expect(results[0]).toHaveProperty('document_title');
expect(results[0]).toHaveProperty('work_type');
expect(results[0]).toHaveProperty('connection_strength');
// Test complex UPDATE with subquery
await runAsync(`
UPDATE documents
SET status = 'needs_review'
WHERE id IN (
SELECT document_id
FROM work_connections
WHERE connection_strength < 0.8
)
`);
// Verify update worked
const updatedDocs = await allAsync(`
SELECT COUNT(*) as count
FROM documents
WHERE status = 'needs_review'
`);
expect(updatedDocs[0].count).toBeGreaterThan(0);
});
test('should handle database constraints and foreign keys', async () => {
const testDb = getTestDb();
// Create schema with foreign key constraints
await DatabaseIntegrationTestFramework.initializeSchema(testDb, [
`PRAGMA foreign_keys = ON`,
...databaseTestUtils.getStandardTestSchema()
]);
await databaseTestUtils.insertTestData(testDb);
const { db } = testDb;
const runAsync = require('util').promisify(db.run.bind(db));
// Test foreign key constraint
await expect(
runAsync(`
INSERT INTO work_connections (work_type, document_id, connection_strength)
VALUES ('test', 999, 0.5)
`)
).rejects.toThrow(); // Should fail due to foreign key constraint
// Test valid foreign key
await expect(
runAsync(`
INSERT INTO work_connections (work_type, document_id, connection_strength)
VALUES ('test', 1, 0.5)
`)
).resolves.not.toThrow();
});
test('should handle database corruption recovery', async () => {
const testDb = getTestDb();
await DatabaseIntegrationTestFramework.initializeSchema(
testDb,
databaseTestUtils.getStandardTestSchema()
);
await databaseTestUtils.insertTestData(testDb);
const { db } = testDb;
const getAsync = require('util').promisify(db.get.bind(db));
// Check database integrity
const integrityCheck = await getAsync(`PRAGMA integrity_check`);
expect(integrityCheck.integrity_check).toBe('ok');
// Test recovery mechanisms
const vacuumResult = await getAsync(`PRAGMA incremental_vacuum`);
expect(vacuumResult).toBeDefined();
// Analyze database for optimization
const analysisResult = await getAsync(`PRAGMA optimize`);
expect(analysisResult).toBeDefined();
});
});
describe('Database Cleanup and Resource Management', () => {
test('should clean up database resources properly', async () => {
const tempTestDb = await DatabaseIntegrationTestFramework.setupRealDatabase();
expect(tempTestDb).toBeDefined();
expect(tempTestDb.path).toMatch(/integration-test-.*\.db$/);
// Use the database
await DatabaseIntegrationTestFramework.initializeSchema(
tempTestDb,
['CREATE TABLE temp_test (id INTEGER PRIMARY KEY)']
);
// Clean up
await tempTestDb.cleanup();
// Verify cleanup
const fs = require('fs/promises');
await expect(fs.access(tempTestDb.path)).rejects.toThrow(); // File should be deleted
});
test('should handle cleanup of multiple databases', async () => {
const testDbs = await Promise.all([
DatabaseIntegrationTestFramework.setupRealDatabase(),
DatabaseIntegrationTestFramework.setupRealDatabase(),
DatabaseIntegrationTestFramework.setupRealDatabase()
]);
expect(testDbs.length).toBe(3);
// Use all databases
for (const db of testDbs) {
await DatabaseIntegrationTestFramework.initializeSchema(
db,
['CREATE TABLE multi_test (id INTEGER PRIMARY KEY)']
);
}
// Clean up all at once
await DatabaseIntegrationTestFramework.cleanupAllDatabases();
// Verify all are cleaned up
const fs = require('fs/promises');
for (const db of testDbs) {
await expect(fs.access(db.path)).rejects.toThrow();
}
});
});
describe('Error Handling and Edge Cases', () => {
test('should handle database connection failures gracefully', async () => {
// Test with invalid database path
await expect(
DatabaseIntegrationTestFramework.setupRealDatabase({
testDbPath: '/invalid/path/test.db'
})
).rejects.toThrow(/Failed to create test database/);
});
test('should handle SQL injection attempts safely', async () => {
const testDb = getTestDb();
await DatabaseIntegrationTestFramework.initializeSchema(
testDb,
databaseTestUtils.getStandardTestSchema()
);
const { db } = testDb;
const runAsync = require('util').promisify(db.run.bind(db));
const allAsync = require('util').promisify(db.all.bind(db));
// Test parameterized queries prevent SQL injection
const maliciousInput = "'; DROP TABLE documents; --";
await expect(
runAsync(`
INSERT INTO documents (title, content, type) VALUES (?, ?, ?)
`, [maliciousInput, 'content', 'test'])
).resolves.not.toThrow();
// Verify table still exists
const tables = await allAsync(`
SELECT name FROM sqlite_master WHERE type='table' AND name='documents'
`);
expect(tables.length).toBe(1);
});
test('should handle memory pressure scenarios', async () => {
const testDb = getTestDb();
await DatabaseIntegrationTestFramework.initializeSchema(
testDb,
databaseTestUtils.getStandardTestSchema()
);
// Monitor memory usage during large operations
const initialMemory = process.memoryUsage();
// Perform memory-intensive database operations
const performanceResult = await DatabaseIntegrationTestFramework.testDatabasePerformance(
testDb,
1000
);
const finalMemory = process.memoryUsage();
const memoryIncrease = finalMemory.heapUsed - initialMemory.heapUsed;
// Memory increase should be reasonable
expect(memoryIncrease).toBeLessThan(50 * 1024 * 1024); // <50MB increase
expect(performanceResult.memoryUsage.heapUsed).toBeLessThan(200 * 1024 * 1024); // <200MB total
});
});
});