Add controller test for Instapaper

src/Wallabag/ImportBundle/Import/BrowserImport.php

@@ -45,6 +45,8 @@ abstract class BrowserImport extends AbstractImport
         $data = json_decode(file_get_contents($this->filepath), true);
 
         if (empty($data)) {
+            $this->logger->error('Wallabag Browser: no entries in imported file');
+
             return false;
         }
 

src/Wallabag/ImportBundle/Import/InstapaperImport.php

@@ -80,6 +80,12 @@ class InstapaperImport extends AbstractImport
         }
         fclose($handle);
 
+        if (empty($entries)) {
+            $this->logger->error('InstapaperImport: no entries in imported file');
+
+            return false;
+        }
+
         if ($this->producer) {
             $this->parseEntriesForProducer($entries);
 

src/Wallabag/ImportBundle/Import/ReadabilityImport.php

@@ -64,6 +64,8 @@ class ReadabilityImport extends AbstractImport
         $data = json_decode(file_get_contents($this->filepath), true);
 
         if (empty($data) || empty($data['bookmarks'])) {
+            $this->logger->error('ReadabilityImport: no entries in imported file');
+
             return false;
         }
 

src/Wallabag/ImportBundle/Import/WallabagImport.php

@@ -58,6 +58,8 @@ abstract class WallabagImport extends AbstractImport
         $data = json_decode(file_get_contents($this->filepath), true);
 
         if (empty($data)) {
+            $this->logger->error('WallabagImport: no entries in imported file');
+
             return false;
         }