diff --git a/tests/units/classes/Project/QgisProjectTest.php b/tests/units/classes/Project/QgisProjectTest.php
index 73407dd27d..86199d660e 100644
--- a/tests/units/classes/Project/QgisProjectTest.php
+++ b/tests/units/classes/Project/QgisProjectTest.php
@@ -320,6 +320,8 @@ public function testEmbeddedRelation()
          $testQgis->setPath($file);
          $testQgis->readXMLProjectTest($file);
 
+         $this->assertNull($testQgis->getTheXmlAttribute());
+
          //check layers
          foreach ($testQgis->getLayers() as $layers){
                   $this->assertEquals($layers["embedded"],1);
@@ -365,6 +367,8 @@ public function testEmbeddedRelation()
          $testQgisParent->setPath($file);
          $testQgisParent->readXMLProjectTest($file);
 
+         $this->assertNull($testQgis->getTheXmlAttribute());
+
          $parentRelations = $testQgisParent->getRelations();
          $parentRelationFields = $testQgisParent->getRelationsFields();
          $this->assertEquals($relations,$parentRelations);
@@ -497,6 +501,8 @@ public function testReadEditionFormsForEmbeddedLayers()
         $testQgis->setPath($file);
         $testQgis->readXMLProjectTest($file);
 
+        $this->assertNull($testQgis->getTheXmlAttribute());
+
         $cfg = json_decode(file_get_contents($file.'.cfg'));
         $config = new Project\ProjectConfig($cfg);
 
@@ -2217,7 +2223,52 @@ public function testUploadField()
         $this->assertEquals('', $remotePath->getUploadAccept());
         $this->assertEquals(array(), $remotePath->getMimeTypes());
         $this->assertFalse($remotePath->isImageUpload());
+    }
+
+    public function testReadProject()
+    {
+        //$services = new lizmapServices(array(), (object) array(), false, '', '');
+        $testQgis = new qgisProjectForTests(array());
+        $file = __DIR__.'/Ressources/montpellier.qgs';
+        $testQgis->setPath($file);
+        $testQgis->readXMLProjectTest($file);
+
+        $this->assertNull($testQgis->getTheXmlAttribute());
+
+        $cfg = json_decode(file_get_contents($file.'.cfg'));
+        $config = new Project\ProjectConfig($cfg);
+
+        $testQgis->setPropertiesAfterRead($config);
+
+        $this->assertNull($testQgis->getTheXmlAttribute());
+
+        $testQgis->getPrintTemplates();
+
+        $this->assertNull($testQgis->getTheXmlAttribute());
+
+        $testQgis->readLocateByLayer($config->getLocateByLayer());
+
+        $this->assertNull($testQgis->getTheXmlAttribute());
+
+        $testQgis->readEditionLayers($config->getEditionLayers());
+
+        $this->assertNull($testQgis->getTheXmlAttribute());
+
+        $testQgis->readLayersOrder($config->getLayers());
+
+        $this->assertNull($testQgis->getTheXmlAttribute());
+
+        $testQgis->readAttributeLayers($config->getAttributeLayers());
+
+        $this->assertNull($testQgis->getTheXmlAttribute());
+
+        $testQgis->readEditionForms($config->getEditionLayers(), null);
+
+        $this->assertNull($testQgis->getTheXmlAttribute());
+
+        $testQgis->readLayersLabeledFieldsConfig($config->getLayersWithLabels(), null);
 
+        $this->assertNull($testQgis->getTheXmlAttribute());
 
     }
 }
diff --git a/tests/units/testslib/QgisProjectForTests.php b/tests/units/testslib/QgisProjectForTests.php
index 8ad949013c..ef67591fd6 100644
--- a/tests/units/testslib/QgisProjectForTests.php
+++ b/tests/units/testslib/QgisProjectForTests.php
@@ -6,7 +6,7 @@ class QgisProjectForTests extends QgisProject
 {
     public function __construct($data = null)
     {
-        if ($data) {
+        if ($data !== null) {
             parent::__construct(null, new lizmapServices(null, (object) array(), false, '', ''), new ContextForTests(), $data);
         }
     }
@@ -92,6 +92,11 @@ public function setLayerOpacityForTest($cfg)
         return $this->setLayerOpacity($cfg);
     }
 
+    public function getTheXmlAttribute()
+    {
+        return $this->xml;
+    }
+
     public function getXmlForTest()
     {
         return $this->getXml();