Bug#961131: freecad: autopkgtest regression with opencascade 7.4

[Graham Inggs <ginggs@debian.org>]

Source: freecad
Version: 0.18.4+dfsg2-2
Tags: patch
X-Debbugs-CC: debian-ci@lists.debian.org
Severity: serious
User: debian-ci@lists.debian.org
Usertags: regression

Hi Maintainer

Freecad fails its autopkgtests with opencascade 7.4 [1]:

testTaperedHole (PartDesignTests.TestHole.TestHole) ... FAIL

The attached patch is applied in Ubuntu.

Regards
Graham


[1] https://ci.debian.net/packages/f/freecad/

Description: partdesign: fix failing tapered hole test
 The given parameters return an invalid shape. This fails with occt7.4 but
 doesn't with occt7.3. If the angle is 45 degree the cone is
 self-intersecting as Hole.Depth > Hole.Diameter/2. Changing the 
 Hole.TaperedAngle to 60 degree solves this issue.
Author: lorenz <looooo@users.noreply.github.com>
Last-Update: 2020-05-03

--- a/src/Mod/PartDesign/PartDesignTests/TestHole.py
+++ b/src/Mod/PartDesign/PartDesignTests/TestHole.py
@@ -67,7 +67,7 @@
     def testTaperedHole(self):
         self.Hole.Diameter = 6
         self.Hole.Depth = 5
-        self.Hole.TaperedAngle = 45
+        self.Hole.TaperedAngle = 60
         self.Hole.ThreadType = 0
         self.Hole.HoleCutType = 0
         self.Hole.DepthType = 0