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+import * as chai from 'chai';
+import 'mocha';
+
+import { Repository } from 'typeorm';
+
+const expect = chai.expect;
+
+/**
+ * First saves the given entity to the database, then finds it and makes sure
+ * that the found entity is exactly equal to the original one. This is a bare
+ * minimum basic test to make sure that the entity type definition and our
+ * database schema are aligned and that it is possible to save and find the
+ * entity.
+ * @param repository A TypeORM repository corresponding with the type of the entity.
+ * @param entity An instance of a TypeORM entity which will be saved/retrieved from the database.
+ */
+export async function testSaveAndFindEntityAsync<T>(repository: Repository<T>, entity: T): Promise<void> {
+ // Note(albrow): We are forced to use an 'any' hack here because
+ // TypeScript complains about stack depth when checking the types.
+ await repository.save<any>(entity);
+ const gotEntity = await repository.findOneOrFail({
+ where: entity,
+ });
+ expect(gotEntity).deep.equal(entity);
+}