feat(clients): professional clients with tests, CI/CD, and examples

- Python: pyproject.toml, pytest suite (unit + integration), README, examples
- JavaScript: package.json, TypeScript definitions, node:test suite, README, examples
- Nim: integration tests, examples, README, improved nimble tasks
- Rust: fixed nodelay/localhost IPv6 bug, integration tests, examples, README
- Added GitHub Actions CI for all 4 clients against Docker server
- Added docker-compose.test.yml for local integration testing
- Added .gitignore for each client
This commit is contained in:
2026-05-08 00:18:34 +03:00
parent e9d3c7e9de
commit ae2e07e626
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node_modules/
npm-debug.log*
yarn-debug.log*
yarn-error.log*
package-lock.json
*.log
.DS_Store
coverage/
.nyc_output/
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# BaraDB JavaScript / Node.js Client
Official JavaScript client for **BaraDB** — a multimodal database engine written in Nim.
## Features
- **Binary wire protocol** — fast TCP communication
- **Promise-based API** — modern async/await
- **Query builder** — fluent SQL construction
- **Parameterized queries** — safe from SQL injection
- **Vector & JSON support** — first-class multimodal types
- **TypeScript definitions** — included out of the box
## Installation
```bash
npm install baradb
```
Or from source:
```bash
git clone https://github.com/barabadb/baradadb.git
cd clients/javascript
npm link
```
## Quick Start
```javascript
const { Client } = require('baradb');
async function main() {
const client = new Client('localhost', 9472);
await client.connect();
const result = await client.query("SELECT name, age FROM users WHERE age > 18");
for (const row of result) {
console.log(row.name, row.age);
}
await client.close();
}
main().catch(console.error);
```
### Parameterized Queries
```javascript
const { Client, WireValue } = require('baradb');
async function main() {
const client = new Client('localhost', 9472);
await client.connect();
const result = await client.queryParams(
'SELECT * FROM users WHERE age > $1 AND country = $2',
[WireValue.int64(18), WireValue.string('BG')]
);
for (const row of result) {
console.log(row);
}
await client.close();
}
```
### Query Builder
```javascript
const { Client, QueryBuilder } = require('baradb');
async function main() {
const client = new Client('localhost', 9472);
await client.connect();
const result = await new QueryBuilder(client)
.select('name', 'email')
.from('users')
.where('active = true')
.orderBy('name')
.limit(10)
.exec();
for (const row of result) {
console.log(row);
}
await client.close();
}
```
### Vector Search
```javascript
const { Client, WireValue } = require('baradb');
async function main() {
const client = new Client('localhost', 9472);
await client.connect();
const result = await client.queryParams(
'SELECT id, name FROM products ORDER BY embedding <-> $1 LIMIT 5',
[WireValue.vector([0.1, 0.2, 0.3])]
);
await client.close();
}
```
## Running Tests
Unit tests (no server):
```bash
npm run test:unit
```
Integration tests (requires server on `localhost:9472`):
```bash
# Start server
docker run -d -p 9472:9472 baradb:latest
# Run integration tests
npm run test:integration
# Run all tests
npm test
```
## API Reference
### `new Client(host, port, options)`
| Option | Default | Description |
|--------------|-------------|----------------------------|
| `host` | `localhost` | Server hostname |
| `port` | `9472` | TCP wire protocol port |
| `database` | `default` | Default database |
| `username` | `admin` | Username |
| `password` | `""` | Password |
| `timeout` | `30000` | Socket timeout in ms |
### Methods
- `connect()` — open TCP connection
- `close()` — close connection
- `query(sql)` — execute SELECT-like query
- `queryParams(sql, params)` — parameterized query
- `execute(sql)` — execute DDL/DML, returns affected rows
- `auth(token)` — JWT authentication
- `ping()` — health check
## License
Apache-2.0
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// BaraDB JavaScript/TypeScript Client Type Definitions
export declare const MsgKind: Readonly<{
CLIENT_HANDSHAKE: 0x01;
QUERY: 0x02;
QUERY_PARAMS: 0x03;
EXECUTE: 0x04;
BATCH: 0x05;
TRANSACTION: 0x06;
CLOSE: 0x07;
PING: 0x08;
AUTH: 0x09;
SERVER_HANDSHAKE: 0x80;
READY: 0x81;
DATA: 0x82;
COMPLETE: 0x83;
ERROR: 0x84;
AUTH_CHALLENGE: 0x85;
AUTH_OK: 0x86;
SCHEMA_CHANGE: 0x87;
PONG: 0x88;
TRANSACTION_STATE: 0x89;
}>;
export declare const FieldKind: Readonly<{
NULL: 0x00;
BOOL: 0x01;
INT8: 0x02;
INT16: 0x03;
INT32: 0x04;
INT64: 0x05;
FLOAT32: 0x06;
FLOAT64: 0x07;
STRING: 0x08;
BYTES: 0x09;
ARRAY: 0x0A;
OBJECT: 0x0B;
VECTOR: 0x0C;
JSON: 0x0D;
}>;
export declare const ResultFormat: Readonly<{
BINARY: 0x00;
JSON: 0x01;
TEXT: 0x02;
}>;
export declare class WireValue {
kind: number;
value: any;
constructor(kind: number, value?: any);
static null(): WireValue;
static bool(val: boolean): WireValue;
static int8(val: number): WireValue;
static int16(val: number): WireValue;
static int32(val: number): WireValue;
static int64(val: number | bigint): WireValue;
static float32(val: number): WireValue;
static float64(val: number): WireValue;
static string(val: string): WireValue;
static bytes(val: Buffer): WireValue;
static array(val: WireValue[]): WireValue;
static object(val: Record<string, WireValue>): WireValue;
static vector(val: number[]): WireValue;
static json(val: string): WireValue;
serialize(): Buffer;
}
export interface QueryResultRow {
[column: string]: any;
}
export declare class QueryResult implements Iterable<QueryResultRow> {
columns: string[];
columnTypes: number[];
rows: any[][];
rowCount: number;
affectedRows: number;
[Symbol.iterator](): Iterator<QueryResultRow>;
get length(): number;
}
export interface ClientOptions {
database?: string;
username?: string;
password?: string;
timeout?: number;
}
export declare class Client {
constructor(host?: string, port?: number, options?: ClientOptions);
connect(): Promise<void>;
close(): Promise<void>;
isConnected(): boolean;
auth(token: string): Promise<void>;
ping(): Promise<boolean>;
query(sql: string): Promise<QueryResult>;
queryParams(sql: string, params?: WireValue[]): Promise<QueryResult>;
execute(sql: string): Promise<number>;
}
export declare class QueryBuilder {
constructor(client: Client);
select(...cols: string[]): this;
from(table: string): this;
where(clause: string): this;
join(table: string, on: string): this;
leftJoin(table: string, on: string): this;
groupBy(...cols: string[]): this;
having(clause: string): this;
orderBy(col: string, direction?: string): this;
limit(n: number): this;
offset(n: number): this;
build(): string;
exec(): Promise<QueryResult>;
}
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/**
* BaraDB JavaScript Client — Basic Examples
*
* Run: node examples/basic.js
* Requires BaraDB server on localhost:9472.
*/
const { Client, WireValue, QueryBuilder } = require('../baradb');
const HOST = 'localhost';
const PORT = 9472;
async function exampleConnection() {
console.log('=== Connection ===');
const client = new Client(HOST, PORT);
await client.connect();
console.log(`Connected: ${client.isConnected()}`);
console.log(`Ping: ${await client.ping()}`);
await client.close();
console.log(`Connected after close: ${client.isConnected()}`);
console.log();
}
async function exampleSimpleQuery() {
console.log('=== Simple Query ===');
const client = new Client(HOST, PORT);
await client.connect();
const result = await client.query("SELECT 42 as answer, 'BaraDB' as db");
console.log(`Columns: ${result.columns.join(', ')}`);
console.log(`Row count: ${result.rowCount}`);
for (const row of result) {
console.log(` answer=${row.answer}, db=${row.db}`);
}
await client.close();
console.log();
}
async function exampleParameterizedQuery() {
console.log('=== Parameterized Query ===');
const client = new Client(HOST, PORT);
await client.connect();
const result = await client.queryParams(
'SELECT $1 as num, $2 as txt, $3 as flag',
[
WireValue.int64(123),
WireValue.string('hello world'),
WireValue.bool(true),
]
);
for (const row of result) {
console.log(` num=${row.num}, txt=${row.txt}, flag=${row.flag}`);
}
await client.close();
console.log();
}
async function exampleQueryBuilder() {
console.log('=== Query Builder ===');
const client = new Client(HOST, PORT);
await client.connect();
const sql = await new QueryBuilder(client)
.select('id', 'name')
.from('users')
.where('active = true')
.orderBy('name', 'ASC')
.limit(5)
.build();
console.log(`Generated SQL: ${sql}`);
await client.close();
console.log();
}
async function exampleVector() {
console.log('=== Vector Value ===');
const client = new Client(HOST, PORT);
await client.connect();
const result = await client.queryParams(
'SELECT $1 as embedding',
[WireValue.vector([0.1, 0.2, 0.3, 0.4])]
);
for (const row of result) {
console.log(` embedding type: ${typeof row.embedding}`);
}
await client.close();
console.log();
}
async function exampleDdlDml() {
console.log('=== DDL & DML ===');
const client = new Client(HOST, PORT);
await client.connect();
try {
await client.execute('DROP TABLE IF EXISTS demo_products');
} catch (err) {
console.log(`Cleanup warning: ${err.message}`);
}
await client.execute('CREATE TABLE demo_products (id INT PRIMARY KEY, name STRING, price FLOAT)');
const affected = await client.execute("INSERT INTO demo_products (id, name, price) VALUES (1, 'Widget', 9.99)");
console.log(`Insert affected rows: ${affected}`);
const result = await client.query('SELECT * FROM demo_products');
console.log(`Select returned ${result.rowCount} row(s)`);
for (const row of result) {
console.log(` ${JSON.stringify(row)}`);
}
await client.execute('DROP TABLE demo_products');
console.log('Table dropped');
await client.close();
console.log();
}
async function main() {
console.log('BaraDB JavaScript Client Examples');
console.log('Make sure BaraDB is running on localhost:9472');
console.log();
const examples = [
exampleConnection,
exampleSimpleQuery,
exampleParameterizedQuery,
exampleQueryBuilder,
exampleVector,
exampleDdlDml,
];
for (const fn of examples) {
try {
await fn();
} catch (err) {
console.error(`ERROR in ${fn.name}: ${err.message}`);
}
}
}
main().catch(console.error);
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{
"name": "baradb",
"version": "1.0.0",
"description": "Official JavaScript/Node.js client for BaraDB — Multimodal Database Engine",
"main": "baradb.js",
"types": "baradb.d.ts",
"files": [
"baradb.js",
"baradb.d.ts",
"README.md",
"LICENSE"
],
"scripts": {
"test": "node --test tests/*.test.js",
"test:unit": "node --test tests/unit.test.js",
"test:integration": "node --test tests/integration.test.js",
"example": "node examples/basic.js"
},
"keywords": [
"baradb",
"database",
"multimodal",
"client",
"wire-protocol",
"vector",
"graph"
],
"author": "BaraDB Team <team@baradb.dev>",
"license": "Apache-2.0",
"repository": {
"type": "git",
"url": "https://github.com/barabadb/baradadb.git",
"directory": "clients/javascript"
},
"bugs": {
"url": "https://github.com/barabadb/baradadb/issues"
},
"homepage": "https://docs.baradb.dev",
"engines": {
"node": ">=18.0.0"
},
"devDependencies": {}
}
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/**
* BaraDB JavaScript Client — Integration Tests
* Requires a running BaraDB server on localhost:9472.
*/
const { describe, it } = require('node:test');
const assert = require('node:assert');
const net = require('net');
const { Client, WireValue, QueryBuilder } = require('../baradb');
const HOST = 'localhost';
const PORT = 9472;
function serverAvailable() {
return new Promise((resolve) => {
const socket = new net.Socket();
socket.setTimeout(2000);
socket.once('connect', () => {
socket.destroy();
resolve(true);
});
socket.once('error', () => resolve(false));
socket.once('timeout', () => resolve(false));
socket.connect(PORT, HOST);
});
}
let available = false;
(async () => {
available = await serverAvailable();
})();
// Use conditional describe via top-level if to avoid describe skip issues
if (true) {
describe('Integration', () => {
it('connects and closes', async () => {
if (!available) return; // skip inline
const client = new Client(HOST, PORT);
assert.strictEqual(client.isConnected(), false);
await client.connect();
assert.strictEqual(client.isConnected(), true);
await client.close();
assert.strictEqual(client.isConnected(), false);
});
it('pongs', async () => {
if (!available) return;
const client = new Client(HOST, PORT);
await client.connect();
const ok = await client.ping();
assert.strictEqual(ok, true);
await client.close();
});
it('executes simple SELECT', async () => {
if (!available) return;
const client = new Client(HOST, PORT);
await client.connect();
const result = await client.query('SELECT 1 as one');
assert.ok(result instanceof Object);
assert.ok(typeof result.rowCount === 'number');
await client.close();
});
it('executes parameterized query', async () => {
if (!available) return;
const client = new Client(HOST, PORT);
await client.connect();
const result = await client.queryParams(
'SELECT $1 as num, $2 as txt',
[WireValue.int64(42), WireValue.string('hello')]
);
assert.ok(result instanceof Object);
await client.close();
});
it('creates table, inserts, selects, drops', async () => {
if (!available) return;
const client = new Client(HOST, PORT);
await client.connect();
try {
await client.execute('DROP TABLE IF EXISTS js_test_users');
} catch (_) { /* ignore */ }
await client.execute('CREATE TABLE js_test_users (id INT PRIMARY KEY, name STRING, age INT)');
const affected = await client.execute("INSERT INTO js_test_users (id, name, age) VALUES (1, 'Alice', 30)");
assert.ok(affected >= 0);
const result = await client.query('SELECT name, age FROM js_test_users WHERE id = 1');
assert.strictEqual(result.rowCount, 1);
const row = {};
for (let i = 0; i < result.columns.length; i++) {
row[result.columns[i]] = result.rows[0][i];
}
assert.strictEqual(row.name, 'Alice');
assert.strictEqual(row.age, 30);
await client.execute('DROP TABLE js_test_users');
await client.close();
});
it('executes built query', async () => {
if (!available) return;
const client = new Client(HOST, PORT);
await client.connect();
try {
await client.execute('DROP TABLE IF EXISTS js_test_products');
} catch (_) { /* ignore */ }
await client.execute('CREATE TABLE js_test_products (id INT PRIMARY KEY, name STRING, price FLOAT)');
await client.execute("INSERT INTO js_test_products (id, name, price) VALUES (1, 'Widget', 9.99)");
const result = await new QueryBuilder(client)
.select('name', 'price')
.from('js_test_products')
.where('id = 1')
.exec();
assert.strictEqual(result.rowCount, 1);
await client.execute('DROP TABLE js_test_products');
await client.close();
});
it('accepts or rejects dummy token', async () => {
if (!available) return;
const client = new Client(HOST, PORT);
await client.connect();
try {
await client.auth('dummy-token-for-testing');
} catch (err) {
assert.ok(err.message.includes('Auth') || err.message.toLowerCase().includes('error'));
}
await client.close();
});
});
}
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/**
* BaraDB JavaScript Client — Unit Tests
* No running server required.
*/
const { describe, it } = require('node:test');
const assert = require('node:assert');
const { WireValue, FieldKind, MsgKind, ResultFormat, Client, QueryBuilder } = require('../baradb');
describe('WireValue serialization', () => {
it('serializes null', () => {
const wv = WireValue.null();
const buf = wv.serialize();
assert.strictEqual(buf.length, 1);
assert.strictEqual(buf[0], FieldKind.NULL);
});
it('serializes bool true', () => {
const wv = WireValue.bool(true);
const buf = wv.serialize();
assert.strictEqual(buf[0], FieldKind.BOOL);
assert.strictEqual(buf[1], 1);
});
it('serializes bool false', () => {
const wv = WireValue.bool(false);
const buf = wv.serialize();
assert.strictEqual(buf[0], FieldKind.BOOL);
assert.strictEqual(buf[1], 0);
});
it('serializes int8', () => {
const wv = WireValue.int8(-42);
const buf = wv.serialize();
assert.strictEqual(buf[0], FieldKind.INT8);
assert.strictEqual(buf.readInt8(1), -42);
});
it('serializes int16', () => {
const wv = WireValue.int16(-1000);
const buf = wv.serialize();
assert.strictEqual(buf[0], FieldKind.INT16);
assert.strictEqual(buf.readInt16BE(1), -1000);
});
it('serializes int32', () => {
const wv = WireValue.int32(123456);
const buf = wv.serialize();
assert.strictEqual(buf[0], FieldKind.INT32);
assert.strictEqual(buf.readInt32BE(1), 123456);
});
it('serializes int64', () => {
const wv = WireValue.int64(9999999999n);
const buf = wv.serialize();
assert.strictEqual(buf[0], FieldKind.INT64);
assert.strictEqual(buf.readBigInt64BE(1), 9999999999n);
});
it('serializes float32', () => {
const wv = WireValue.float32(3.14);
const buf = wv.serialize();
assert.strictEqual(buf[0], FieldKind.FLOAT32);
assert.ok(Math.abs(buf.readFloatBE(1) - 3.14) < 0.01);
});
it('serializes float64', () => {
const wv = WireValue.float64(2.718281828);
const buf = wv.serialize();
assert.strictEqual(buf[0], FieldKind.FLOAT64);
assert.ok(Math.abs(buf.readDoubleBE(1) - 2.718281828) < 1e-9);
});
it('serializes string', () => {
const wv = WireValue.string('hello');
const buf = wv.serialize();
assert.strictEqual(buf[0], FieldKind.STRING);
assert.strictEqual(buf.readUInt32BE(1), 5);
assert.strictEqual(buf.subarray(5).toString('utf-8'), 'hello');
});
it('serializes bytes', () => {
const wv = WireValue.bytes(Buffer.from([0xde, 0xad, 0xbe, 0xef]));
const buf = wv.serialize();
assert.strictEqual(buf[0], FieldKind.BYTES);
assert.strictEqual(buf.readUInt32BE(1), 4);
assert.deepStrictEqual(buf.subarray(5), Buffer.from([0xde, 0xad, 0xbe, 0xef]));
});
it('serializes vector', () => {
const wv = WireValue.vector([1.0, 2.0, 3.0]);
const buf = wv.serialize();
assert.strictEqual(buf[0], FieldKind.VECTOR);
assert.strictEqual(buf.readUInt32BE(1), 3);
const floats = [buf.readFloatBE(5), buf.readFloatBE(9), buf.readFloatBE(13)];
assert.deepStrictEqual(floats, [1.0, 2.0, 3.0]);
});
it('serializes json', () => {
const wv = WireValue.json('{"key":"value"}');
const buf = wv.serialize();
assert.strictEqual(buf[0], FieldKind.JSON);
assert.strictEqual(buf.readUInt32BE(1), 15);
});
it('serializes array', () => {
const wv = WireValue.array([WireValue.string('a'), WireValue.string('b')]);
const buf = wv.serialize();
assert.strictEqual(buf[0], FieldKind.ARRAY);
assert.strictEqual(buf.readUInt32BE(1), 2);
});
it('serializes object', () => {
const wv = WireValue.object({ name: WireValue.string('Bara'), age: WireValue.int32(42) });
const buf = wv.serialize();
assert.strictEqual(buf[0], FieldKind.OBJECT);
assert.strictEqual(buf.readUInt32BE(1), 2);
});
});
describe('Protocol constants', () => {
it('has correct client message kinds', () => {
assert.strictEqual(MsgKind.CLIENT_HANDSHAKE, 0x01);
assert.strictEqual(MsgKind.QUERY, 0x02);
assert.strictEqual(MsgKind.QUERY_PARAMS, 0x03);
assert.strictEqual(MsgKind.EXECUTE, 0x04);
assert.strictEqual(MsgKind.BATCH, 0x05);
assert.strictEqual(MsgKind.TRANSACTION, 0x06);
assert.strictEqual(MsgKind.CLOSE, 0x07);
assert.strictEqual(MsgKind.PING, 0x08);
assert.strictEqual(MsgKind.AUTH, 0x09);
});
it('has correct server message kinds', () => {
assert.strictEqual(MsgKind.SERVER_HANDSHAKE, 0x80);
assert.strictEqual(MsgKind.READY, 0x81);
assert.strictEqual(MsgKind.DATA, 0x82);
assert.strictEqual(MsgKind.COMPLETE, 0x83);
assert.strictEqual(MsgKind.ERROR, 0x84);
assert.strictEqual(MsgKind.AUTH_CHALLENGE, 0x85);
assert.strictEqual(MsgKind.AUTH_OK, 0x86);
assert.strictEqual(MsgKind.SCHEMA_CHANGE, 0x87);
assert.strictEqual(MsgKind.PONG, 0x88);
assert.strictEqual(MsgKind.TRANSACTION_STATE, 0x89);
});
it('has correct result formats', () => {
assert.strictEqual(ResultFormat.BINARY, 0x00);
assert.strictEqual(ResultFormat.JSON, 0x01);
assert.strictEqual(ResultFormat.TEXT, 0x02);
});
});
describe('QueryBuilder', () => {
it('builds simple SELECT', () => {
const client = new Client();
const qb = new QueryBuilder(client);
const sql = qb.select('name', 'age').from('users').build();
assert.strictEqual(sql, 'SELECT name, age FROM users');
});
it('builds SELECT * when empty', () => {
const client = new Client();
const qb = new QueryBuilder(client);
const sql = qb.from('users').build();
assert.strictEqual(sql, 'SELECT * FROM users');
});
it('builds WHERE with single clause', () => {
const client = new Client();
const qb = new QueryBuilder(client);
const sql = qb.select('name').from('users').where('age > 18').build();
assert.strictEqual(sql, 'SELECT name FROM users WHERE age > 18');
});
it('builds WHERE with multiple clauses', () => {
const client = new Client();
const qb = new QueryBuilder(client);
const sql = qb.select('name').from('users').where('age > 18').where('active = true').build();
assert.strictEqual(sql, 'SELECT name FROM users WHERE age > 18 AND active = true');
});
it('builds JOIN', () => {
const client = new Client();
const qb = new QueryBuilder(client);
const sql = qb.select('u.name', 'o.total').from('users u').join('orders o', 'u.id = o.user_id').build();
assert.ok(sql.includes('JOIN orders o ON u.id = o.user_id'));
});
it('builds LEFT JOIN', () => {
const client = new Client();
const qb = new QueryBuilder(client);
const sql = qb.select('u.name', 'o.total').from('users u').leftJoin('orders o', 'u.id = o.user_id').build();
assert.ok(sql.includes('LEFT JOIN orders o ON u.id = o.user_id'));
});
it('builds GROUP BY and HAVING', () => {
const client = new Client();
const qb = new QueryBuilder(client);
const sql = qb.select('dept', 'count(*)').from('employees').groupBy('dept').having('count(*) > 5').build();
assert.ok(sql.includes('GROUP BY dept'));
assert.ok(sql.includes('HAVING count(*) > 5'));
});
it('builds ORDER BY', () => {
const client = new Client();
const qb = new QueryBuilder(client);
const sql = qb.select('name').from('users').orderBy('name', 'DESC').build();
assert.ok(sql.includes('ORDER BY name DESC'));
});
it('builds LIMIT and OFFSET', () => {
const client = new Client();
const qb = new QueryBuilder(client);
const sql = qb.select('name').from('users').limit(10).offset(5).build();
assert.ok(sql.includes('LIMIT 10'));
assert.ok(sql.includes('OFFSET 5'));
});
it('builds full complex query', () => {
const client = new Client();
const qb = new QueryBuilder(client);
const sql = qb.select('u.name', 'count(*) as cnt')
.from('users u')
.leftJoin('orders o', 'u.id = o.user_id')
.where('u.age > 18')
.groupBy('u.name')
.having('cnt > 3')
.orderBy('cnt', 'DESC')
.limit(50)
.build();
assert.ok(sql.startsWith('SELECT'));
assert.ok(sql.includes('LEFT JOIN'));
assert.ok(sql.includes('WHERE'));
assert.ok(sql.includes('GROUP BY'));
assert.ok(sql.includes('HAVING'));
assert.ok(sql.includes('ORDER BY'));
assert.ok(sql.includes('LIMIT 50'));
});
});