Reversed codeception.

tests/generators/ChartJsPiggyBankChartGeneratorTest.php

@@ -0,0 +1,66 @@
+<?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.
+     * This method is called before a test is executed.
+     */
+    public function setUp()
+    {
+        parent::setUp();
+
+        $this->object = new ChartJsPiggyBankChartGenerator;
+
+    }
+
+    /**
+     * This method is called before the first test of this test class is run.
+     *
+     * @since Method available since Release 3.4.0
+     */
+    public static function setUpBeforeClass()
+    {
+        parent::setUpBeforeClass();
+    }
+
+    /**
+     * @covers FireflyIII\Generator\Chart\PiggyBank\ChartJsPiggyBankChartGenerator::history
+     */
+    public function testHistory()
+    {
+        $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]);
+
+
+    }
+}