scalars.test.ts

import assert from "assert";
import { describe, it } from "vitest";
import { emitSchema } from "./utils.js";

describe("emitting scalars", () => {
  it("works with scalars extending built-in scalars", async () => {
    const schemas = await emitSchema(`
      scalar Test extends uint8;
    `);

    assert.deepStrictEqual(schemas["Test.json"], {
      $id: "Test.json",
      $schema: "https://json-schema.org/draft/2020-12/schema",
      type: "integer",
      minimum: 0,
      maximum: 255,
    });
  });

  it("throws errors for scalars not extending built-in scalars", async () => {
    await assert.rejects(async () => {
      await emitSchema(`
        scalar Test;
      `);
    });
  });

  it("handles extensions", async () => {
    const schemas = await emitSchema(`
      @extension("x-scalar", Json<true>)
      scalar Test extends uint8;
    `);

    assert.strictEqual(schemas["Test.json"]["x-scalar"], true);
  });

  it("can use a scalar template", async () => {
    const schemas = await emitSchema(`
      scalar Test<T> extends uint8;

      model TestModel {
        test: Test<string>;
      }
    `);
    assert.deepStrictEqual(schemas["TestString.json"], {
      $id: "TestString.json",
      $schema: "https://json-schema.org/draft/2020-12/schema",
      type: "integer",
      maximum: 255,
      minimum: 0,
    });
  });
});