Add tests

realm · Jun 12, 2023 · 3ae85e3 · 3ae85e3
1 parent d8216cc
commit 3ae85e3
Showing 1 changed file with 38 additions and 0 deletions.
diff --git a/test/results_test.dart b/test/results_test.dart
@@ -741,4 +741,42 @@ Future<void> main([List<String>? args]) async {
  final items = realm.query<Product>(ids);
  expect(items.length, 0);
  });
+
+ test('RealmResults.first throws on empty', () async {
+ final config = Configuration.local([Dog.schema, Person.schema]);
+ final realm = getRealm(config);
+
+ final empty = Iterable<int>.empty();
+ expect(() => empty.first, throwsA(isA<StateError>()));
+ expect(() => realm.all<Dog>().first, throwsA(isA<RealmException>()));
+ });
+
+ test('RealmResults.last throws on empty', () async {
+ final config = Configuration.local([Dog.schema, Person.schema]);
+ final realm = getRealm(config);
+
+ final empty = Iterable<int>.empty();
+ expect(() => empty.last, throwsA(isA<StateError>()));
+ expect(() => realm.all<Dog>().last, throwsA(isA<RealmException>()));
+ });
+
+ test('RealmResult.single throws on empty', () {
+ final config = Configuration.local([Dog.schema, Person.schema]);
+ final realm = getRealm(config);
+
+ final empty = Iterable<int>.empty();
+ expect(() => empty.single, throwsA(isA<StateError>()));
+ expect(() => realm.all<Dog>().single, throwsA(isA<RealmStateError>()));
+ });
+
+ test('RealmResult.single throws on two items', () {
+ final config = Configuration.local([Dog.schema, Person.schema]);
+ final realm = getRealm(config);
+
+ final twoItems = [1, 2];
+ expect(() => twoItems.single, throwsA(isA<StateError>()));
+
+ realm.write(() => realm.addAll([Dog('Fido'), Dog('Spot')]));
+ expect(() => realm.all<Dog>().single, throwsA(isA<StateError>()));
+ });
 }