Add more unit tests for DebugViewFriendlyErrorFormatter, tidy up Director::is_ajax() return

src/Control/Director.php

@@ -1004,13 +1004,13 @@ class Director implements TemplateGlobalProvider
         $request = self::currentRequest($request);
         if ($request) {
             return $request->isAjax();
-        } else {
+        }
+
         return (
             isset($_REQUEST['ajax']) ||
             (isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == "XMLHttpRequest")
         );
     }
-    }
 
     /**
      * Returns true if this script is being run from the command line rather than the web server.

src/Logging/DebugViewFriendlyErrorFormatter.php

@@ -97,7 +97,7 @@ class DebugViewFriendlyErrorFormatter implements FormatterInterface
     public function format(array $record)
     {
         // Get error code
-        $code = empty($record['code']) ? $this->statusCode : $record['code'];
+        $code = empty($record['code']) ? $this->getStatusCode() : $record['code'];
         return $this->output($code);
     }
 
@@ -127,8 +127,9 @@ class DebugViewFriendlyErrorFormatter implements FormatterInterface
         $output = $renderer->renderHeader();
         $output .= $renderer->renderInfo("Website Error", $this->getTitle(), $this->getBody());
 
-        if (Email::config()->admin_email) {
+        $adminEmail = Email::config()->get('admin_email');
-            $mailto = Email::obfuscate(Email::config()->admin_email);
+        if ($adminEmail) {
+            $mailto = Email::obfuscate($adminEmail);
             $output .= $renderer->renderParagraph('Contact an administrator: ' . $mailto . '');
         }
 

tests/php/Logging/DebugViewFriendlyErrorFormatterTest.php

@@ -2,18 +2,66 @@
 
 namespace SilverStripe\Logging\Tests;
 
+use PHPUnit_Framework_MockObject_MockObject;
 use SilverStripe\Control\Email\Email;
+use SilverStripe\Control\HTTPRequest;
+use SilverStripe\Core\Injector\Injector;
+use SilverStripe\Dev\DebugView;
 use SilverStripe\Dev\SapphireTest;
 use SilverStripe\Logging\DebugViewFriendlyErrorFormatter;
 
 class DebugViewFriendlyErrorFormatterTest extends SapphireTest
 {
-    public function setUp()
+    protected function setUp()
     {
         parent::setUp();
         Email::config()->set('admin_email', 'testy@mctest.face');
     }
 
+    public function testFormatPassesRecordCodeToOutput()
+    {
+        /** @var DebugViewFriendlyErrorFormatter|PHPUnit_Framework_MockObject_MockObject $mock */
+        $mock = $this->getMockBuilder(DebugViewFriendlyErrorFormatter::class)
+            ->setMethods(['output'])
+            ->getMock();
+
+        $mock->expects($this->once())->method('output')->with(403)->willReturn('foo');
+        $this->assertSame('foo', $mock->format(['code' => 403]));
+    }
+
+    public function testFormatPassesInstanceStatusCodeToOutputWhenNotProvidedByRecord()
+    {
+        /** @var DebugViewFriendlyErrorFormatter|PHPUnit_Framework_MockObject_MockObject $mock */
+        $mock = $this->getMockBuilder(DebugViewFriendlyErrorFormatter::class)
+            ->setMethods(['output'])
+            ->getMock();
+
+        $mock->setStatusCode(404);
+
+        $mock->expects($this->once())->method('output')->with(404)->willReturn('foo');
+        $this->assertSame('foo', $mock->format(['notacode' => 'bar']));
+    }
+
+    public function testFormatBatch()
+    {
+        $records = [
+            ['message' => 'bar'],
+            ['open' => 'sausage'],
+            ['horse' => 'caballo'],
+        ];
+
+        /** @var DebugViewFriendlyErrorFormatter|PHPUnit_Framework_MockObject_MockObject $mock */
+        $mock = $this->getMockBuilder(DebugViewFriendlyErrorFormatter::class)
+            ->setMethods(['format'])
+            ->getMock();
+
+        $mock->expects($this->exactly(3))
+            ->method('format')
+            ->willReturn('foo');
+
+        $this->assertSame('foofoofoo', $mock->formatBatch($records));
+    }
+
     public function testOutput()
     {
         $formatter = new DebugViewFriendlyErrorFormatter();
@@ -34,4 +82,15 @@ TEXT
 
         $this->assertEquals($expected, $formatter->output(404));
     }
+
+    public function testOutputReturnsTitleWhenRequestIsAjax()
+    {
+        // Mock an AJAX request
+        Injector::inst()->registerService(new HTTPRequest('GET', '', ['ajax' => true]));
+
+        $formatter = new DebugViewFriendlyErrorFormatter();
+        $formatter->setTitle('The Diary of Anne Frank');
+
+        $this->assertSame('The Diary of Anne Frank', $formatter->output(200));
+    }
 }