diff --git a/tests/Widget/Type/CounterTest.php b/tests/Widget/Type/CounterTest.php
index 43ad9d19..b887e6f0 100644
--- a/tests/Widget/Type/CounterTest.php
+++ b/tests/Widget/Type/CounterTest.php
@@ -16,6 +16,7 @@ use App\Widget\Type\SimpleWidget;
 
 /**
  * @covers \App\Widget\Type\Counter
+ * @covers \App\Widget\Type\SimpleStatisticChart
  * @covers \App\Widget\Type\SimpleWidget
  */
 class CounterTest extends AbstractSimpleStatisticsWidgetTypeTest
diff --git a/tests/Widget/Type/DailyWorkingTimeChartTest.php b/tests/Widget/Type/DailyWorkingTimeChartTest.php
index 166e7c62..f24b7630 100644
--- a/tests/Widget/Type/DailyWorkingTimeChartTest.php
+++ b/tests/Widget/Type/DailyWorkingTimeChartTest.php
@@ -9,6 +9,8 @@
 
 namespace App\Tests\Widget\Type;
 
+use App\Entity\Activity;
+use App\Entity\Project;
 use App\Entity\User;
 use App\Model\Statistic\Day;
 use App\Repository\TimesheetRepository;
@@ -98,10 +100,18 @@ class DailyWorkingTimeChartTest extends TestCase
 
     public function testGetData()
     {
+        $activity = $this->createMock(Activity::class);
+        $activity->method('getId')->willReturn(42);
+
+        $project = $this->createMock(Project::class);
+        $project->method('getId')->willReturn(4711);
+
         $repository = $this->getMockBuilder(TimesheetRepository::class)->disableOriginalConstructor()->onlyMethods(['getDailyData'])->getMock();
-        $repository->expects($this->once())->method('getDailyData')->willReturnCallback(function ($begin, $end, $user) {
+        $repository->expects($this->once())->method('getDailyData')->willReturnCallback(function ($begin, $end, $user) use ($activity, $project) {
             return [
-                ['year' => $begin->format('Y'), 'month' => $begin->format('n'), 'day' => $begin->format('j'), 'rate' => 13.75, 'duration' => 1234, 'details' => []]
+                ['year' => $begin->format('Y'), 'month' => $begin->format('n'), 'day' => $begin->format('j'), 'rate' => 13.75, 'duration' => 1234, 'details' => [
+                    ['activity' => $activity, 'project' => $project]
+                ]]
             ];
         });
 
@@ -112,6 +122,14 @@ class DailyWorkingTimeChartTest extends TestCase
         self::assertArrayHasKey('activities', $data);
         self::assertArrayHasKey('data', $data);
 
+        self::assertCount(1, $data['activities']);
+        self::assertArrayHasKey('4711_42', $data['activities']);
+        self::assertCount(2, $data['activities']['4711_42']);
+        self::assertArrayHasKey('activity', $data['activities']['4711_42']);
+        self::assertArrayHasKey('project', $data['activities']['4711_42']);
+        self::assertSame($activity, $data['activities']['4711_42']['activity']);
+        self::assertSame($project, $data['activities']['4711_42']['project']);
+
         self::assertCount(7, $data['data']);
         foreach ($data['data'] as $statObj) {
             self::assertInstanceOf(Day::class, $statObj);
diff --git a/tests/Widget/Type/YearChartTest.php b/tests/Widget/Type/YearChartTest.php
index 8c14932e..03bfd935 100644
--- a/tests/Widget/Type/YearChartTest.php
+++ b/tests/Widget/Type/YearChartTest.php
@@ -15,6 +15,8 @@ use App\Widget\Type\YearChart;
 
 /**
  * @covers \App\Widget\Type\YearChart
+ * @covers \App\Widget\Type\SimpleStatisticChart
+ * @covers \App\Widget\Type\SimpleWidget
  */
 class YearChartTest extends AbstractSimpleStatisticsWidgetTypeTest
 {