tests for serializeWhere

Author: Kaltsoon

src/makeFindUnique.ts

@@ -1,6 +1,6 @@
 import { FindOptions, ModelStatic, Model, Attributes } from 'sequelize';
 
-import DataLoaderManager from './dataLoaderManager';
+import DataLoaderManager, { ModelBatchLoadFn } from './dataLoaderManager';
 import { findRowByWhere, getWhereQuery } from './utils';
 import { FindUniqueOptions } from './types';
 
@@ -18,9 +18,7 @@ const makeFindUnique = <ModelType extends Model>(
 ) => {
   const onLoadBatch = options?.onLoadBatch ?? noop;
 
-  const batchLoadFn = async (
-    keys: ReadonlyArray<FindOptions<any>>,
-  ): Promise<Array<ModelType | null>> => {
+  const batchLoadFn: ModelBatchLoadFn<ModelType> = async (keys) => {
     onLoadBatch(keys);
 
     const whereQuery = getWhereQuery(keys);

src/tests/__snapshots__/serializeWhere.test.ts.snap

@@ -0,0 +1,5 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`serializeFindUniqueOptions serializes primitive values correctly 1`] = `"{\\"firstName\\":\\"Kalle\\",\\"lastName\\":\\"Ilves\\"}"`;
+
+exports[`serializeFindUniqueOptions throws error for non-primitive values 1`] = `"Where parameter properties can only contain serializable primitive values. Found value of type \\"object\\" in property \\"friends\\""`;

src/tests/serializeWhere.test.ts

@@ -0,0 +1,22 @@
+import serializeWhere from '../serializeWhere';
+
+describe('serializeFindUniqueOptions', () => {
+  test('serializes primitive values correctly', () => {
+    expect(
+      serializeWhere({
+        firstName: 'Kalle',
+        lastName: 'Ilves',
+      }),
+    ).toMatchSnapshot();
+  });
+
+  test('throws error for non-primitive values', () => {
+    expect(() =>
+      serializeWhere({
+        firstName: 'Kalle',
+        lastName: 'Ilves',
+        friends: ['elina'],
+      }),
+    ).toThrowErrorMatchingSnapshot();
+  });
+});