Added EmailTarget tests of the following methods: (#12150)

- init()
- export()

tests/framework/log/EmailTargetTest.php

@@ -0,0 +1,132 @@
+<?php
+/**
+ * @author Dmitriy Makarov <makarov.dmitriy@gmail.com>
+ */
+
+namespace yiiunit\framework\log;
+
+use yii\log\EmailTarget;
+use yiiunit\TestCase;
+
+/**
+ * Class EmailTargetTest
+ * @package yiiunit\framework\log
+ * @group log
+ */
+class EmailTargetTest extends TestCase
+{
+    /**
+     * @var PHPUnit_Framework_MockObject_MockObject
+     */
+    protected $mailer;
+
+    /**
+     * Set up mailer
+     */
+    protected function setUp()
+    {
+        parent::setUp();
+        $this->mailer = $this->getMockBuilder('yii\\mail\\BaseMailer')
+            ->setMethods(['compose'])
+            ->getMockForAbstractClass();
+    }
+
+    /**
+     * @covers yii\log\EmailTarget::init()
+     */
+    public function testInitWithOptionTo()
+    {
+        new EmailTarget(['mailer' => $this->mailer, 'message'=> ['to' => 'developer1@example.com']]);
+    }
+
+    /**
+     * @covers yii\log\EmailTarget::init()
+     * @expectedException \yii\base\InvalidConfigException
+     * @expectedExceptionMessage The "to" option must be set for EmailTarget::message.
+     */
+    public function testInitWithoutOptionTo()
+    {
+        new EmailTarget(['mailer' => $this->mailer]);
+    }
+
+    /**
+     * @covers yii\log\EmailTarget::export()
+     * @covers yii\log\EmailTarget::composeMessage()
+     */
+    public function testExportWithSubject()
+    {
+        $message1 = ['A very looooooooooooooooooooooooooooooooooooooooooooooooooooooooooong message 1'];
+        $message2 = ['A very looooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooong message 2'];
+        $messages = [$message1, $message2];
+        $textBody = wordwrap(implode("\n", [$message1[0], $message2[0]]), 70);
+
+        $message = $this->getMockBuilder('yii\\mail\\BaseMessage')
+            ->setMethods(['setTextBody', 'send', 'setSubject'])
+            ->getMockForAbstractClass();
+
+        $this->mailer->expects($this->once())->method('compose')->willReturn($message);
+
+        $message->expects($this->once())->method('setTextBody')->with($this->equalTo($textBody));
+        $message->expects($this->once())->method('send')->with($this->equalTo($this->mailer));
+        $message->expects($this->once())->method('setSubject')->with($this->equalTo('Hello world'));
+
+        $mailTarget = $this->getMock('yii\\log\\EmailTarget', ['formatMessage'], [
+            [
+                'mailer' => $this->mailer,
+                'message'=> [
+                    'to' => 'developer@example.com',
+                    'subject' => 'Hello world'
+                ]
+            ]
+        ]);
+
+        $mailTarget->messages = $messages;
+        $mailTarget->expects($this->exactly(2))->method('formatMessage')->willReturnMap(
+            [
+                [$message1, $message1[0]],
+                [$message2, $message2[0]],
+            ]
+        );
+        $mailTarget->export();
+    }
+
+    /**
+     * @covers yii\log\EmailTarget::export()
+     * @covers yii\log\EmailTarget::composeMessage()
+     */
+    public function testExportWithoutSubject()
+    {
+        $message1 = ['A veeeeery loooooooooooooooooooooooooooooooooooooooooooooooooooooooong message 3'];
+        $message2 = ['Message 4'];
+        $messages = [$message1, $message2];
+        $textBody = wordwrap(implode("\n", [$message1[0], $message2[0]]), 70);
+
+        $message = $this->getMockBuilder('yii\\mail\\BaseMessage')
+            ->setMethods(['setTextBody', 'send', 'setSubject'])
+            ->getMockForAbstractClass();
+
+        $this->mailer->expects($this->once())->method('compose')->willReturn($message);
+
+        $message->expects($this->once())->method('setTextBody')->with($this->equalTo($textBody));
+        $message->expects($this->once())->method('send')->with($this->equalTo($this->mailer));
+        $message->expects($this->once())->method('setSubject')->with($this->equalTo('Application Log'));
+
+        $mailTarget = $this->getMock('yii\\log\\EmailTarget', ['formatMessage'], [
+            [
+                'mailer' => $this->mailer,
+                'message'=> [
+                    'to' => 'developer@example.com',
+                ]
+            ]
+        ]);
+
+        $mailTarget->messages = $messages;
+        $mailTarget->expects($this->exactly(2))->method('formatMessage')->willReturnMap(
+            [
+                [$message1, $message1[0]],
+                [$message2, $message2[0]],
+            ]
+        );
+        $mailTarget->export();
+    }
+}