diff --git a/tests/src/python/test_qgspallabeling_canvas.py b/tests/src/python/test_qgspallabeling_canvas.py
@@ -46,6 +46,7 @@ def setUpClass(cls):
     def setUp(self):
         """Run before each test."""
         self.configTest('pal_canvas', 'sp')
+        TestQgsPalLabeling.setDefaultEngineSettings()
         self.lyr = self.defaultSettings()
 
     def tearDown(self):

diff --git a/tests/src/python/test_qgspallabeling_server.py b/tests/src/python/test_qgspallabeling_server.py
@@ -151,6 +151,7 @@ def setUpClass(cls):
     def setUp(self):
         """Run before each test."""
         self.configTest('pal_server', 'sp')
+        TestQgsPalLabeling.setDefaultEngineSettings()
         self.lyr = self.defaultSettings()
         self.params = self.defaultWmsParams('point')
         self._TestImage = ''

diff --git a/tests/src/python/test_qgspallabeling_tests.py b/tests/src/python/test_qgspallabeling_tests.py
@@ -51,6 +51,26 @@ def test_text_color(self):
         # Label color change
         self.lyr.textColor = Qt.blue
         self.checkTest()
+
+    def test_partials_labels_enabled(self):
+        # Set Big font size
+        font = QFont(self._TestFont)
+        font.setPointSizeF(90)
+        self.lyr.textFont = font
+        # Enable partials labels
+        self._PalEngine.setShowingPartialsLabels(True)
+        # Check
+        self.checkTest()
+
+    def test_partials_labels_disabled(self):
+        # Set Big font size
+        font = QFont(self._TestFont)
+        font.setPointSizeF(90)
+        self.lyr.textFont = font
+        # Disable partials labels
+        self._PalEngine.setShowingPartialsLabels(False)
+        # Check
+        self.checkTest()
 
 
 if __name__ == '__main__':

diff --git a/...expected_pal_canvas/sp_partials_labels_disabled/sp_partials_labels_disabled.png b/...expected_pal_canvas/sp_partials_labels_disabled/sp_partials_labels_disabled.png
diff --git a/...s/expected_pal_canvas/sp_partials_labels_enabled/sp_partials_labels_enabled.png b/...s/expected_pal_canvas/sp_partials_labels_enabled/sp_partials_labels_enabled.png