Add unittests

testscour.py

@@ -675,9 +675,13 @@ class ChangeLineToVerticalLineSegmentInPath(unittest.TestCase):
 
 class ChangeBezierToShorthandInPath(unittest.TestCase):
 	def runTest(self):
-		path = scour.scourXmlFile('unittests/path-bez-optimize.svg').getElementsByTagNameNS(SVGNS, 'path')[0]
-		self.assertEqual(path.getAttribute('d'), 'm10 100c50-50 50 50 100 0s50 50 100 0',
+		doc = scour.scourXmlFile('unittests/path-bez-optimize.svg')
+		self.assertEqual(doc.getElementById('path1').getAttribute('d'), 'm10 100c50-50 50 50 100 0s50 50 100 0',
 			'Did not change bezier curves into shorthand curve segments in path')
+		self.assertEqual(doc.getElementById('path2a').getAttribute('d'), 'm200 200s200 100 200 0',
+			'Did not change bezier curve into shorthand curve segment when first control point is the current point and previous command was not a bezier curve')
+		self.assertEqual(doc.getElementById('path2b').getAttribute('d'), 'm0 300s200-100 200 0c0 0 200 100 200 0',
+			'Did change bezier curve into shorthand curve segment when first control point is the current point but previous command was a bezier curve with a different control point')
 
 class ChangeQuadToShorthandInPath(unittest.TestCase):
 	def runTest(self):

unittests/path-bez-optimize.svg

@@ -1,4 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <svg version="1.1" viewBox="0 0 400 400" xmlns="http://www.w3.org/2000/svg">
-  <path d="m10,100c50-50,50,50,100,0,50-50,50,50,100,0" fill="none" stroke="blue" stroke-width="5"/>
+  <path id="path1" d="m10,100c50-50,50,50,100,0,50-50,50,50,100,0" fill="none" stroke="blue" stroke-width="5"/>
+  <path id="path2a" d="m200,200c0,0 200,100 200,0" fill="none" stroke="red" stroke-width="5"/>
+  <path id="path2b" d="m0,300s200-100 200,0c0,0 200,100 200,0" fill="none" stroke="green" stroke-width="5"/>
 </svg>