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2026-07-13 12:25:07 +08:00

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JavaScript

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// ┃ ██████ ██████ ██████ █ █ █ █ █ █▄ ▀███ █ ┃
// ┃ ▄▄▄▄▄█ █▄▄▄▄▄ ▄▄▄▄▄█ ▀▀▀▀▀█▀▀▀▀▀ █ ▀▀▀▀▀█ ████████▌▐███ ███▄ ▀█ █ ▀▀▀▀▀ ┃
// ┃ █▀▀▀▀▀ █▀▀▀▀▀ █▀██▀▀ ▄▄▄▄▄ █ ▄▄▄▄▄█ ▄▄▄▄▄█ ████████▌▐███ █████▄ █ ▄▄▄▄▄ ┃
// ┃ █ ██████ █ ▀█▄ █ ██████ █ ███▌▐███ ███████▄ █ ┃
// ┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫
// ┃ Copyright (c) 2017, the Perspective Authors. ┃
// ┃ ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ ┃
// ┃ This file is part of the Perspective library, distributed under the terms ┃
// ┃ of the [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0). ┃
// ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
import { test, expect } from "@perspective-dev/test";
import { describeDuckDB } from "./setup.js";
describeDuckDB("table", (getClient) => {
test("schema()", async function () {
const table = await getClient().open_table("memory.superstore");
const schema = await table.schema();
expect(schema).toEqual({
"Product Name": "string",
"Ship Date": "date",
City: "string",
"Row ID": "integer",
"Customer Name": "string",
Quantity: "integer",
Discount: "float",
"Sub-Category": "string",
Segment: "string",
Category: "string",
"Order Date": "date",
"Order ID": "string",
Sales: "float",
State: "string",
"Postal Code": "float",
Country: "string",
"Customer ID": "string",
"Ship Mode": "string",
Region: "string",
Profit: "float",
"Product ID": "string",
});
});
test("columns()", async function () {
const table = await getClient().open_table("memory.superstore");
const columns = await table.columns();
expect(columns).toEqual([
"Row ID",
"Order ID",
"Order Date",
"Ship Date",
"Ship Mode",
"Customer ID",
"Customer Name",
"Segment",
"Country",
"City",
"State",
"Postal Code",
"Region",
"Product ID",
"Category",
"Sub-Category",
"Product Name",
"Sales",
"Quantity",
"Discount",
"Profit",
]);
});
test("size()", async function () {
const table = await getClient().open_table("memory.superstore");
const size = await table.size();
expect(size).toBe(9994);
});
});