diff --git a/src/Client/Cache/MySQL/Manager.php b/src/Client/Cache/MySQL/Manager.php
index c6e7bd7..5edba77 100644
--- a/src/Client/Cache/MySQL/Manager.php
+++ b/src/Client/Cache/MySQL/Manager.php
@@ -72,7 +72,7 @@ public function debug($base)
         );
         $query->bindParam(':base', $base, PDO::PARAM_STR);
         $query->execute();
-        return $query->fetchAll(PDO::FETCH_ASSOC);
+        return $query->rowCount() > 0 ? $query->fetch(PDO::FETCH_ASSOC) : [];
     }
 
     /**
diff --git a/src/Client/Delay/MySQL/Manager.php b/src/Client/Delay/MySQL/Manager.php
index 8e982b5..4705cf8 100644
--- a/src/Client/Delay/MySQL/Manager.php
+++ b/src/Client/Delay/MySQL/Manager.php
@@ -100,6 +100,6 @@ public function debug($base)
         );
         $query->bindParam(':base', $base, PDO::PARAM_STR);
         $query->execute();
-        return $query->fetchAll(PDO::FETCH_ASSOC);
+        return $query->rowCount() > 0 ? $query->fetch(PDO::FETCH_ASSOC) : [];
     }
 }
diff --git a/src/Parser/Directives/RequestRateParser.php b/src/Parser/Directives/RequestRateParser.php
index 214d3cf..87d2d6b 100644
--- a/src/Parser/Directives/RequestRateParser.php
+++ b/src/Parser/Directives/RequestRateParser.php
@@ -120,7 +120,7 @@ public function client($userAgent = self::USER_AGENT, $fallbackValue = 0)
      */
     private function sort()
     {
-        usort($this->requestRates, function ($requestRateA, $requestRateB) {
+        usort($this->requestRates, function (array $requestRateA, array $requestRateB) {
             // PHP 7: Switch to the <=> "Spaceship" operator
             return $requestRateB['rate'] > $requestRateA['rate'];
         });
diff --git a/src/Parser/Directives/VisitTimeParser.php b/src/Parser/Directives/VisitTimeParser.php
index b594df4..98d346f 100644
--- a/src/Parser/Directives/VisitTimeParser.php
+++ b/src/Parser/Directives/VisitTimeParser.php
@@ -82,7 +82,7 @@ public function render(RenderHandler $handler)
      */
     private function sort()
     {
-        usort($this->visitTimes, function ($visitTimeA, $visitTimeB) {
+        usort($this->visitTimes, function (array $visitTimeA, array $visitTimeB) {
             // PHP 7: Switch to the <=> "Spaceship" operator
             return $visitTimeA['from'] > $visitTimeB['from'];
         });
diff --git a/tests/CacheSQLTest.php b/tests/CacheSQLTest.php
index 3bd369d..c0eaf6c 100644
--- a/tests/CacheSQLTest.php
+++ b/tests/CacheSQLTest.php
@@ -53,6 +53,8 @@ public function testCacheSQL($uri, $base)
             $parser->client($uri);
         }
 
+        $this->assertTrue(count($parser->debug($uri), COUNT_NORMAL) >= 5);
+
         $parser->cron();
         $parser->clean();
 
diff --git a/tests/DelaySQLTest.php b/tests/DelaySQLTest.php
index 2b13672..93d5a7e 100644
--- a/tests/DelaySQLTest.php
+++ b/tests/DelaySQLTest.php
@@ -62,6 +62,7 @@ public function testDelaySQL($uri, $userAgent)
             $queue = $client->getQueue();
             $this->assertLessThanOrEqual(60, $queue);
             $this->assertGreaterThan(59, $queue);
+            $this->assertTrue(count($delayHandler->debug($uri), COUNT_NORMAL) >= 3);
         }
 
         $client->reset();
diff --git a/tests/ExportTest.php b/tests/ExportTest.php
index c8fe983..4bae427 100644
--- a/tests/ExportTest.php
+++ b/tests/ExportTest.php
@@ -340,4 +340,13 @@ public function generateDataForTest()
             ]
         ];
     }
+
+    public function testRenderInvalidNewLine()
+    {
+        $parser = new RobotsTxtParser\TxtClient('http://example.com', 200, '');
+        $this->assertInstanceOf('vipnytt\RobotsTxtParser\TxtClient', $parser);
+
+        $this->expectException(RobotsTxtParser\Exceptions\ClientException::class);
+        $parser->render()->normal('<br>');
+    }
 }