Add unit tests for bulk put and get (#4, #15)

Author: nalenz-objectbox

objectbox_test/test/test.dart

@@ -12,6 +12,7 @@ class TestEntity {
     String text;
 
     TestEntity();
+    TestEntity.constructWithId(this.id, this.text);
     TestEntity.construct(this.text);
 }
 
@@ -30,20 +31,69 @@ main() {
             expect(putId, greaterThan(0));
         });
 
-        test(".get() returns the correct instance", () {
-            int putId = box.put(TestEntity.construct("Hello"));
-            final TestEntity inst = box.get(putId);
-            expect(inst.id, equals(putId));
-            expect(inst.text, equals("Hello"));
+        test(".get() returns the correct item", () {
+            final int putId = box.put(TestEntity.construct("Hello"));
+            final TestEntity item = box.get(putId);
+            expect(item.id, equals(putId));
+            expect(item.text, equals("Hello"));
         });
 
         test(".put() and box.get() keep Unicode characters", () {
-            final text = "😄你好";
+            final String text = "😄你好";
             final TestEntity inst = box.get(box.put(TestEntity.construct(text)));
             expect(inst.text, equals(text));
         });
 
-        // TODO: test box.putMany, box.getMany, box.getAll
+        test(".put() can update an item", () {
+            final int putId1 = box.put(TestEntity.construct("One"));
+            final int putId2 = box.put(TestEntity.constructWithId(putId1, "Two"));
+            expect(putId2, equals(putId1));
+            final TestEntity item = box.get(putId2);
+            expect(item.text, equals("Two"));
+        });
+
+        test(".getAll retrieves all items", () {
+            final int id1 = box.put(TestEntity.construct("One"));
+            final int id2 = box.put(TestEntity.construct("Two"));
+            final int id3 = box.put(TestEntity.construct("Three"));
+            final List<TestEntity> items = box.getAll();
+            expect(items.length, equals(3));
+            expect(items.where((i) => i.id == id1).single.text, equals("One"));
+            expect(items.where((i) => i.id == id2).single.text, equals("Two"));
+            expect(items.where((i) => i.id == id3).single.text, equals("Three"));
+        });
+
+        test(".putMany inserts multiple items", () {
+            final List<TestEntity> items = [
+                TestEntity.construct("One"),
+                TestEntity.construct("Two"),
+                TestEntity.construct("Three")
+            ];
+            box.putMany(items);
+            final List<TestEntity> itemsFetched = box.getAll();
+            expect(itemsFetched.length, equals(items.length));
+        });
+
+        test(".putMany returns the new item IDs", () {
+            final List<TestEntity> items = ["One", "Two", "Three", "Four", "Five", "Six", "Seven"].map((s) => TestEntity.construct(s)).toList();
+            final List<int> ids = box.putMany(items);
+            expect(ids.length, equals(items.length));
+            for(int i = 0; i < items.length; ++i)
+                expect(box.get(ids[i]).text, equals(items[i].text));
+        });
+
+        test(".getMany correctly handles non-existant items", () {
+            final List<TestEntity> items = ["One", "Two"].map((s) => TestEntity.construct(s)).toList();
+            final List<int> ids = box.putMany(items);
+            int otherId = 1;
+            while(ids.indexWhere((id) => id == otherId) != -1)
+                ++otherId;
+            final List<TestEntity> fetchedItems = box.getMany([ids[0], otherId, ids[1]]);
+            expect(fetchedItems.length, equals(3));
+            expect(fetchedItems[0].text, equals("One"));
+            expect(fetchedItems[1], equals(null));
+            expect(fetchedItems[2].text, equals("Two"));
+        });
     });
 
     tearDown(() {