diff --git a/plugins/calendar/tests/LocalizationTest.php b/plugins/calendar/tests/LocalizationTest.php
new file mode 100644
index 00000000..af7a9565
--- /dev/null
+++ b/plugins/calendar/tests/LocalizationTest.php
@@ -0,0 +1,19 @@
+<?php
+
+class LocalizationTest extends PHPUnit\Framework\TestCase
+{
+    /**
+     * Test all localization files for possible errors
+     */
+    function test_localization()
+    {
+        // Any error/warning will fail the 
+        foreach (glob(__DIR__ . '/../localization/*.inc') as $file) {
+            $labels = $messages = [];
+
+            include $file;
+
+            $this->assertTrue(!empty($labels));
+        }
+    }
+}
diff --git a/plugins/kolab_2fa/tests/LocalizationTest.php b/plugins/kolab_2fa/tests/LocalizationTest.php
new file mode 100644
index 00000000..af7a9565
--- /dev/null
+++ b/plugins/kolab_2fa/tests/LocalizationTest.php
@@ -0,0 +1,19 @@
+<?php
+
+class LocalizationTest extends PHPUnit\Framework\TestCase
+{
+    /**
+     * Test all localization files for possible errors
+     */
+    function test_localization()
+    {
+        // Any error/warning will fail the 
+        foreach (glob(__DIR__ . '/../localization/*.inc') as $file) {
+            $labels = $messages = [];
+
+            include $file;
+
+            $this->assertTrue(!empty($labels));
+        }
+    }
+}
diff --git a/plugins/kolab_activesync/tests/LocalizationTest.php b/plugins/kolab_activesync/tests/LocalizationTest.php
new file mode 100644
index 00000000..af7a9565
--- /dev/null
+++ b/plugins/kolab_activesync/tests/LocalizationTest.php
@@ -0,0 +1,19 @@
+<?php
+
+class LocalizationTest extends PHPUnit\Framework\TestCase
+{
+    /**
+     * Test all localization files for possible errors
+     */
+    function test_localization()
+    {
+        // Any error/warning will fail the 
+        foreach (glob(__DIR__ . '/../localization/*.inc') as $file) {
+            $labels = $messages = [];
+
+            include $file;
+
+            $this->assertTrue(!empty($labels));
+        }
+    }
+}
diff --git a/plugins/kolab_addressbook/tests/LocalizationTest.php b/plugins/kolab_addressbook/tests/LocalizationTest.php
new file mode 100644
index 00000000..af7a9565
--- /dev/null
+++ b/plugins/kolab_addressbook/tests/LocalizationTest.php
@@ -0,0 +1,19 @@
+<?php
+
+class LocalizationTest extends PHPUnit\Framework\TestCase
+{
+    /**
+     * Test all localization files for possible errors
+     */
+    function test_localization()
+    {
+        // Any error/warning will fail the 
+        foreach (glob(__DIR__ . '/../localization/*.inc') as $file) {
+            $labels = $messages = [];
+
+            include $file;
+
+            $this->assertTrue(!empty($labels));
+        }
+    }
+}
diff --git a/plugins/kolab_auth/tests/LocalizationTest.php b/plugins/kolab_auth/tests/LocalizationTest.php
new file mode 100644
index 00000000..af7a9565
--- /dev/null
+++ b/plugins/kolab_auth/tests/LocalizationTest.php
@@ -0,0 +1,19 @@
+<?php
+
+class LocalizationTest extends PHPUnit\Framework\TestCase
+{
+    /**
+     * Test all localization files for possible errors
+     */
+    function test_localization()
+    {
+        // Any error/warning will fail the 
+        foreach (glob(__DIR__ . '/../localization/*.inc') as $file) {
+            $labels = $messages = [];
+
+            include $file;
+
+            $this->assertTrue(!empty($labels));
+        }
+    }
+}
diff --git a/plugins/kolab_chat/tests/LocalizationTest.php b/plugins/kolab_chat/tests/LocalizationTest.php
new file mode 100644
index 00000000..af7a9565
--- /dev/null
+++ b/plugins/kolab_chat/tests/LocalizationTest.php
@@ -0,0 +1,19 @@
+<?php
+
+class LocalizationTest extends PHPUnit\Framework\TestCase
+{
+    /**
+     * Test all localization files for possible errors
+     */
+    function test_localization()
+    {
+        // Any error/warning will fail the 
+        foreach (glob(__DIR__ . '/../localization/*.inc') as $file) {
+            $labels = $messages = [];
+
+            include $file;
+
+            $this->assertTrue(!empty($labels));
+        }
+    }
+}
diff --git a/plugins/kolab_delegation/tests/LocalizationTest.php b/plugins/kolab_delegation/tests/LocalizationTest.php
new file mode 100644
index 00000000..af7a9565
--- /dev/null
+++ b/plugins/kolab_delegation/tests/LocalizationTest.php
@@ -0,0 +1,19 @@
+<?php
+
+class LocalizationTest extends PHPUnit\Framework\TestCase
+{
+    /**
+     * Test all localization files for possible errors
+     */
+    function test_localization()
+    {
+        // Any error/warning will fail the 
+        foreach (glob(__DIR__ . '/../localization/*.inc') as $file) {
+            $labels = $messages = [];
+
+            include $file;
+
+            $this->assertTrue(!empty($labels));
+        }
+    }
+}
diff --git a/plugins/kolab_files/tests/LocalizationTest.php b/plugins/kolab_files/tests/LocalizationTest.php
new file mode 100644
index 00000000..af7a9565
--- /dev/null
+++ b/plugins/kolab_files/tests/LocalizationTest.php
@@ -0,0 +1,19 @@
+<?php
+
+class LocalizationTest extends PHPUnit\Framework\TestCase
+{
+    /**
+     * Test all localization files for possible errors
+     */
+    function test_localization()
+    {
+        // Any error/warning will fail the 
+        foreach (glob(__DIR__ . '/../localization/*.inc') as $file) {
+            $labels = $messages = [];
+
+            include $file;
+
+            $this->assertTrue(!empty($labels));
+        }
+    }
+}
diff --git a/plugins/kolab_folders/tests/LocalizationTest.php b/plugins/kolab_folders/tests/LocalizationTest.php
new file mode 100644
index 00000000..af7a9565
--- /dev/null
+++ b/plugins/kolab_folders/tests/LocalizationTest.php
@@ -0,0 +1,19 @@
+<?php
+
+class LocalizationTest extends PHPUnit\Framework\TestCase
+{
+    /**
+     * Test all localization files for possible errors
+     */
+    function test_localization()
+    {
+        // Any error/warning will fail the 
+        foreach (glob(__DIR__ . '/../localization/*.inc') as $file) {
+            $labels = $messages = [];
+
+            include $file;
+
+            $this->assertTrue(!empty($labels));
+        }
+    }
+}
diff --git a/plugins/kolab_notes/tests/LocalizationTest.php b/plugins/kolab_notes/tests/LocalizationTest.php
new file mode 100644
index 00000000..af7a9565
--- /dev/null
+++ b/plugins/kolab_notes/tests/LocalizationTest.php
@@ -0,0 +1,19 @@
+<?php
+
+class LocalizationTest extends PHPUnit\Framework\TestCase
+{
+    /**
+     * Test all localization files for possible errors
+     */
+    function test_localization()
+    {
+        // Any error/warning will fail the 
+        foreach (glob(__DIR__ . '/../localization/*.inc') as $file) {
+            $labels = $messages = [];
+
+            include $file;
+
+            $this->assertTrue(!empty($labels));
+        }
+    }
+}
diff --git a/plugins/kolab_sso/tests/LocalizationTest.php b/plugins/kolab_sso/tests/LocalizationTest.php
new file mode 100644
index 00000000..af7a9565
--- /dev/null
+++ b/plugins/kolab_sso/tests/LocalizationTest.php
@@ -0,0 +1,19 @@
+<?php
+
+class LocalizationTest extends PHPUnit\Framework\TestCase
+{
+    /**
+     * Test all localization files for possible errors
+     */
+    function test_localization()
+    {
+        // Any error/warning will fail the 
+        foreach (glob(__DIR__ . '/../localization/*.inc') as $file) {
+            $labels = $messages = [];
+
+            include $file;
+
+            $this->assertTrue(!empty($labels));
+        }
+    }
+}
diff --git a/plugins/kolab_tags/tests/LocalizationTest.php b/plugins/kolab_tags/tests/LocalizationTest.php
new file mode 100644
index 00000000..af7a9565
--- /dev/null
+++ b/plugins/kolab_tags/tests/LocalizationTest.php
@@ -0,0 +1,19 @@
+<?php
+
+class LocalizationTest extends PHPUnit\Framework\TestCase
+{
+    /**
+     * Test all localization files for possible errors
+     */
+    function test_localization()
+    {
+        // Any error/warning will fail the 
+        foreach (glob(__DIR__ . '/../localization/*.inc') as $file) {
+            $labels = $messages = [];
+
+            include $file;
+
+            $this->assertTrue(!empty($labels));
+        }
+    }
+}
diff --git a/plugins/libcalendaring/tests/LocalizationTest.php b/plugins/libcalendaring/tests/LocalizationTest.php
new file mode 100644
index 00000000..af7a9565
--- /dev/null
+++ b/plugins/libcalendaring/tests/LocalizationTest.php
@@ -0,0 +1,19 @@
+<?php
+
+class LocalizationTest extends PHPUnit\Framework\TestCase
+{
+    /**
+     * Test all localization files for possible errors
+     */
+    function test_localization()
+    {
+        // Any error/warning will fail the 
+        foreach (glob(__DIR__ . '/../localization/*.inc') as $file) {
+            $labels = $messages = [];
+
+            include $file;
+
+            $this->assertTrue(!empty($labels));
+        }
+    }
+}
diff --git a/plugins/libkolab/tests/LocalizationTest.php b/plugins/libkolab/tests/LocalizationTest.php
new file mode 100644
index 00000000..af7a9565
--- /dev/null
+++ b/plugins/libkolab/tests/LocalizationTest.php
@@ -0,0 +1,19 @@
+<?php
+
+class LocalizationTest extends PHPUnit\Framework\TestCase
+{
+    /**
+     * Test all localization files for possible errors
+     */
+    function test_localization()
+    {
+        // Any error/warning will fail the 
+        foreach (glob(__DIR__ . '/../localization/*.inc') as $file) {
+            $labels = $messages = [];
+
+            include $file;
+
+            $this->assertTrue(!empty($labels));
+        }
+    }
+}
diff --git a/plugins/tasklist/tests/LocalizationTest.php b/plugins/tasklist/tests/LocalizationTest.php
new file mode 100644
index 00000000..af7a9565
--- /dev/null
+++ b/plugins/tasklist/tests/LocalizationTest.php
@@ -0,0 +1,19 @@
+<?php
+
+class LocalizationTest extends PHPUnit\Framework\TestCase
+{
+    /**
+     * Test all localization files for possible errors
+     */
+    function test_localization()
+    {
+        // Any error/warning will fail the 
+        foreach (glob(__DIR__ . '/../localization/*.inc') as $file) {
+            $labels = $messages = [];
+
+            include $file;
+
+            $this->assertTrue(!empty($labels));
+        }
+    }
+}
diff --git a/plugins/wap_client/tests/LocalizationTest.php b/plugins/wap_client/tests/LocalizationTest.php
new file mode 100644
index 00000000..af7a9565
--- /dev/null
+++ b/plugins/wap_client/tests/LocalizationTest.php
@@ -0,0 +1,19 @@
+<?php
+
+class LocalizationTest extends PHPUnit\Framework\TestCase
+{
+    /**
+     * Test all localization files for possible errors
+     */
+    function test_localization()
+    {
+        // Any error/warning will fail the 
+        foreach (glob(__DIR__ . '/../localization/*.inc') as $file) {
+            $labels = $messages = [];
+
+            include $file;
+
+            $this->assertTrue(!empty($labels));
+        }
+    }
+}