bknd/app/__test__/data/specs/fields/FieldIndex.spec.ts

import { describe, expect, test } from "bun:test";
import { Type } from "../../../../src/core/utils";
import {
   Entity,
   EntityIndex,
   type EntityManager,
   Field,
   type SchemaResponse
} from "../../../../src/data";

class TestField extends Field {
   protected getSchema(): any {
      return Type.Any();
   }

   schema(em: EntityManager<any>): SchemaResponse {
      return undefined as any;
   }
}

describe("FieldIndex", async () => {
   const entity = new Entity("test", []);
   test("it constructs", async () => {
      const field = new TestField("name");
      const index = new EntityIndex(entity, [field]);

      expect(index.fields).toEqual([field]);
      expect(index.name).toEqual("idx_test_name");
      expect(index.unique).toEqual(false);
   });

   test("it fails on non-unique", async () => {
      const field = new TestField("name", { required: false });

      expect(() => new EntityIndex(entity, [field], true)).toThrowError();
      expect(() => new EntityIndex(entity, [field])).toBeDefined();
   });
});