Covered Timer with tests

Author: vgarvardt

tests/Timer/LogTest.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace HelloFresh\Stats\Timer;
+
+
+use PHPUnit\Framework\TestCase;
+
+class LogTest extends TestCase
+{
+    public function testFinish()
+    {
+        /** @var \PHPUnit_Framework_MockObject_MockObject|\Psr\Log\LoggerInterface $logger */
+        $logger = $this->getMockBuilder('\Psr\Log\LoggerInterface')->getMock();
+
+        $logger->expects($this->once())
+            ->method('debug')
+            ->willReturnCallback(function ($message, array $context) {
+                $this->assertEquals('Stats timer finished', $message);
+                $this->assertArrayHasKey('elapsed', $context);
+            });
+
+        $timer = new Log($logger);
+        $timer->start();
+        $timer->finish('hello.world');
+    }
+}

tests/Timer/MemoryTest.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace HelloFresh\Stats\Timer;
+
+
+use PHPUnit\Framework\TestCase;
+
+class MemoryTest extends TestCase
+{
+    public function testFinish()
+    {
+        $timer = new Memory();
+        $timer->start();
+        $timer->finish('hello.world');
+
+        $this->assertEquals('hello.world', $timer->getMetric());
+        $this->assertEquals('hello.world', $timer->getMetric());
+
+        $metric = $timer->elapsed();
+        $this->assertInstanceOf(Metric::class, $metric);
+        $this->assertEquals('hello.world', $metric->getMetric());
+    }
+}

tests/Timer/StatsDTest.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace HelloFresh\Stats\Timer;
+
+
+use PHPUnit\Framework\TestCase;
+
+class StatsDTest extends TestCase
+{
+    public function testFinish()
+    {
+        /** @var \PHPUnit_Framework_MockObject_MockObject|\League\StatsD\Client $statsd */
+        $statsd = $this->getMockBuilder('\League\StatsD\Client')->getMock();
+
+        $statsd->expects($this->once())
+            ->method('timing')
+            ->willReturnCallback(function ($metric, $time) {
+                $this->assertEquals('hello.world', $metric);
+            });
+
+        $timer = new StatsD($statsd);
+        $timer->start();
+        $timer->finish('hello.world');
+    }
+}