New tests.

tests/generators/ChartJsPiggyBankChartGeneratorTest.php

@@ -1,10 +1,16 @@
 <?php
+use Carbon\Carbon;
+use FireflyIII\Generator\Chart\PiggyBank\ChartJsPiggyBankChartGenerator;
+use Illuminate\Support\Collection;
+use League\FactoryMuffin\Facade as FactoryMuffin;
 
 /**
  * Class ChartJsPiggyBankChartGeneratorTest
  */
 class ChartJsPiggyBankChartGeneratorTest extends TestCase
 {
+    /** @var ChartJsPiggyBankChartGenerator */
+    protected $object;
 
     /**
      * Sets up the fixture, for example, opens a network connection.
@@ -14,6 +20,8 @@ class ChartJsPiggyBankChartGeneratorTest extends TestCase
     {
         parent::setUp();
 
+        $this->object = new ChartJsPiggyBankChartGenerator;
+
     }
 
     /**
@@ -31,6 +39,28 @@ class ChartJsPiggyBankChartGeneratorTest extends TestCase
      */
     public function testHistory()
     {
-        $this->markTestIncomplete();
+        $preference       = FactoryMuffin::create('FireflyIII\Models\Preference');
+        $preference->data = 'en';
+        $preference->save();
+
+        // mock language preference:
+        Preferences::shouldReceive('get')->withArgs(['language', 'en'])->andReturn($preference);
+
+        // create a set
+        $set = new Collection;
+        for ($i = 0; $i < 5; $i++) {
+            $obj       = new stdClass;
+            $obj->date = new Carbon;
+            $obj->sum  = 100;
+            $set->push($obj);
+        }
+
+        $data = $this->object->history($set);
+        $this->assertCount(5, $data['labels']);
+        $this->assertCount(5, $data['datasets'][0]['data']);
+        $this->assertEquals(100, $data['datasets'][0]['data'][0]);
+        $this->assertEquals(500, $data['datasets'][0]['data'][4]);
+
+
     }
 }