refactor: streamline XML string formatting in xml_util.py test cases

Updated the XML string formatting in the XmlTest class to improve readability by removing unnecessary line breaks and indentation. This change enhances the clarity of the test cases while maintaining their functionality.

Author: joamag

src/colony/test/libs/xml_util.py

@@ -45,25 +45,21 @@ def test_xml_to_dict(self):
         dictionary conversion.
         """
 
-        result = colony.xml_to_dict(
-            """<person>
+        result = colony.xml_to_dict("""<person>
             <name>Hello World</name>
             <age>32</age>
-        </person>"""
-        )
+        </person>""")
         self.assertEqual(result, dict(person=dict(name="Hello World", age="32")))
 
-        result = colony.xml_to_dict(
-            """<person>
+        result = colony.xml_to_dict("""<person>
             <name>Hello World</name>
             <age>32</age>
             <address>
                 <street>Wood Street</street>
                 <city>London</city>
                 <country>United Kingdom</country>
             </address>
-        </person>"""
-        )
+        </person>""")
         self.assertEqual(
             result,
             dict(
@@ -77,35 +73,27 @@ def test_xml_to_dict(self):
             ),
         )
 
-        result = colony.xml_to_dict(
-            """<person>
+        result = colony.xml_to_dict("""<person>
             <name>Hello World</name>
             <age>32</age>
             <address></address>
-        </person>"""
-        )
+        </person>""")
         self.assertEqual(
             result, dict(person=dict(name="Hello World", age="32", address=None))
         )
 
-        result = colony.xml_to_dict(
-            """<person>
+        result = colony.xml_to_dict("""<person>
             <name>你好世界</name>
             <age>32</age>
-        </person>"""
-        )
+        </person>""")
         self.assertEqual(
             result, dict(person=dict(name=colony.legacy.u("你好世界"), age="32"))
         )
 
-        result = colony.xml_to_dict(
-            xml.dom.minidom.parseString(
-                """<person>
+        result = colony.xml_to_dict(xml.dom.minidom.parseString("""<person>
                 <name>Hello World</name>
                 <age>32</age>
-            </person>"""
-            )
-        )
+            </person>"""))
         self.assertEqual(result, dict(person=dict(name="Hello World", age="32")))
 
     def test_dict_to_xml(self):