From ae1679e8a43a89284427c86cf7faca1d28bab212 Mon Sep 17 00:00:00 2001
From: mqus <8398165+mqus@users.noreply.github.com>
Date: Thu, 4 Jun 2020 15:35:38 +0200
Subject: [PATCH] add integration test for transaction rollback (#346)

* add integration test for transaction rollback
---
 floor/test/integration/database_test.dart | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/floor/test/integration/database_test.dart b/floor/test/integration/database_test.dart
index b7f017d2..420a7a25 100644
--- a/floor/test/integration/database_test.dart
+++ b/floor/test/integration/database_test.dart
@@ -129,6 +129,24 @@ void main() {
           expect(actual, equals(newPersons));
         });
 
+        test('transaction rollback on failure', () async {
+          final persons = [Person(1, 'Simon'), Person(2, 'Frank')];
+          await personDao.insertPersons(persons);
+
+          final newPersons = [Person(3, 'Paul'), Person(3, 'Karl')];
+
+          //should fail and trigger rollback because ids are the same
+          try {
+            await personDao.replacePersons(newPersons);
+          } catch (sfe) {
+            // the type SqfliteFfiException is not in scope, so we have to do it this way
+            expect(sfe.runtimeType.toString(), equals('SqfliteFfiException'));
+          }
+
+          final actual = await personDao.findAllPersons();
+          expect(actual, equals(persons));
+        });
+
         test('Reactivity is retained when using transactions', () async {
           final persons = [Person(1, 'Simon'), Person(2, 'Frank')];
           await personDao.insertPersons(persons);