From b979366e9cb5b653cfc74e8a445cc9daed6303b8 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Mon, 18 Mar 2019 14:31:18 +0100
Subject: [PATCH] add unit test to verify that removing a property alo removes
 a dependency

---
 src/Mod/Test/Document.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/Mod/Test/Document.py b/src/Mod/Test/Document.py
index be84d3a548..d56272ae2f 100644
--- a/src/Mod/Test/Document.py
+++ b/src/Mod/Test/Document.py
@@ -1344,6 +1344,19 @@ class DocumentPropertyCases(unittest.TestCase):
     self.Obj.recompute()
     self.Doc.abortTransaction()
 
+  def testRemovePropertyExpression(self):
+    p1 = self.Doc.addObject("App::FeaturePython", "params1")
+    p2 = self.Doc.addObject("App::FeaturePython", "params2")
+    p1.addProperty("App::PropertyFloat", "a")
+    p1.a = 42
+    p2.addProperty("App::PropertyFloat", "b")
+    p2.setExpression('b', u'params1.a')
+    self.Doc.recompute()
+    p2.removeProperty("b")
+    p1.touch()
+    self.Doc.recompute()
+    self.assertTrue(not p2 in p1.InList)
+
   def tearDown(self):
     #closing doc
     FreeCAD.closeDocument("PropertyTests")