@db2lake/driver-postgres
Version:
Postgres source driver for db2lake
81 lines • 3.37 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
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desc = { enumerable: true, get: function() { return m[k]; } };
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Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
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return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
const vitest_1 = require("vitest");
// Create fake client and pool and mock 'pg' before importing the driver
const fakeClient = {
query: vitest_1.vi.fn(),
release: vitest_1.vi.fn(async () => { })
};
const fakePool = {
connect: vitest_1.vi.fn(async () => fakeClient),
end: vitest_1.vi.fn(async () => { })
};
vitest_1.vi.mock('pg', () => ({
Pool: vitest_1.vi.fn((poolConfig) => fakePool)
}));
const index_1 = require("./index");
(0, vitest_1.describe)('PostgresSourceDriver', () => {
(0, vitest_1.it)('connects, fetches paginated rows, and closes', async () => {
// Arrange: return two pages then empty
fakeClient.query
.mockResolvedValueOnce({ rows: [{ id: 1 }, { id: 2 }] })
.mockResolvedValueOnce({ rows: [{ id: 3 }] })
.mockResolvedValueOnce({ rows: [] });
const config = {
query: 'SELECT * FROM table WHERE id > $1',
params: [0],
cursorField: 'id',
cursorParamsIndex: 0,
poolConfig: { connectionString: 'postgres://user:pass@localhost:5432/db' }
};
const driver = new index_1.PostgresSourceDriver(config);
// Act: iterate generator and collect
const all = [];
for await (const batch of driver.fetch()) {
all.push(...batch);
}
// Assert: collected rows
(0, vitest_1.expect)(all.map(r => r.id)).toEqual([1, 2, 3]);
// Pool constructor should have been called with poolConfig
const pg = (await Promise.resolve().then(() => __importStar(require('pg'))));
(0, vitest_1.expect)(pg.Pool).toHaveBeenCalledWith(config.poolConfig);
// Close should release client and end pool
await driver.close();
(0, vitest_1.expect)(fakeClient.release).toHaveBeenCalled();
(0, vitest_1.expect)(fakePool.end).toHaveBeenCalled();
});
});
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