import { describe, expect, it } from 'vitest';

import { mergeInterfaceParams } from './interfaceParams';

describe('mergeInterfaceParams', () => {
  it('retains mappings for parameters shared by the new interface', () => {
    const result = mergeInterfaceParams(
      [
        { dataType: 'varchar', field: 'keyword', required: true },
        { dataType: 'int', field: 'pageSize' },
      ],
      [
        { field: 'keyword', relationField: 'customerName', sourceType: 1 },
        { field: 'removed', relationField: 'legacyValue', sourceType: 2 },
      ],
    );

    expect(result).toEqual([
      { dataType: 'varchar', field: 'keyword', relationField: 'customerName', required: true, sourceType: 1 },
      { dataType: 'int', field: 'pageSize', relationField: '', sourceType: 1 },
    ]);
  });

  it('retains constant and system-variable parameter sources', () => {
    const result = mergeInterfaceParams(
      [{ field: 'status' }, { field: 'tenantId' }],
      [
        { field: 'status', relationField: 'enabled', sourceType: 2 },
        { field: 'tenantId', relationField: '@tenantId', sourceType: 4 },
      ],
    );

    expect(result).toMatchObject([
      { field: 'status', relationField: 'enabled', sourceType: 2 },
      { field: 'tenantId', relationField: '@tenantId', sourceType: 4 },
    ]);
  });
});