Fix PluginRegistry test

fix-PluginRegistry-test.patch

@@ -0,0 +1,27 @@
+From 72e584d799450e7ede0667a8e875526bce21e5fd Mon Sep 17 00:00:00 2001
+From: Diego Prado Gesto <d.pradogesto@ultimaker.com>
+Date: Wed, 16 May 2018 16:50:36 +0200
+Subject: [PATCH] CURA-5164 Fix PluginRegistry test (subset)
+
+---
+ tests/PluginRegistry/TestPluginRegistry.py        | 10 +++++++---
+ tests/Settings/conftest.py                        |  7 ++++---
+ tests/VersionUpgrade/TestVersionUpgradeManager.py |  1 -
+ tests/conftest.py                                 |  7 +++----
+ 4 files changed, 14 insertions(+), 11 deletions(-)
+
+diff --git a/tests/PluginRegistry/TestPluginRegistry.py b/tests/PluginRegistry/TestPluginRegistry.py
+index 0f8456e7c..43a8354e1 100644
+--- a/tests/PluginRegistry/TestPluginRegistry.py
++++ b/tests/PluginRegistry/TestPluginRegistry.py
+@@ -68,7 +72,7 @@ def test_disabledPlugin(self, registry):
+ 
+     def test_emptyPlugin(self, registry):
+         registry.loadPlugin("EmptyPlugin")
+-        with pytest.raises(KeyError):
++        with pytest.raises(PluginNotFoundError):
+             registry.getPluginObject("EmptyPlugin")
+ 
+     def test_invalidVersionNumber(self, registry):
+
+