Modify tests to run with py.test.

This removes a dependancy on Sancho for running tests.

quixote/html/test/test_html.py

@@ -1,7 +1,7 @@
 import sys
-from sancho.utest import UTest
 from quixote.html import _py_htmltext
 from quixote.html import href, url_with_query, url_quote, nl2br
+from quixote.test.utest import UTest
 
 markupchars = '<>&"'
 quotedchars = '&lt;&gt;&amp;&quot;'
@@ -340,7 +340,7 @@ def setup_c():
     TemplateIO = _c_htmltext.TemplateIO
 
 
-if __name__ == "__main__":
+def test_all():
     setup_py()
     HTMLTest()
     HTMLTextTest()
@@ -350,3 +350,6 @@ if __name__ == "__main__":
         HTMLTest()
         HTMLTextTest()
         TemplateTest()
+
+if __name__ == "__main__":
+    test_all()

quixote/ptl/test/test_ptl.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python
-from sancho.utest import UTest
+from quixote.test.utest import UTest
 from quixote.ptl.ptl_compile import compile_template
 from io import StringIO
 from quixote.html import TemplateIO, htmltext
@@ -53,6 +53,8 @@ class Test (UTest):
         except SyntaxError as e:
             assert e.lineno == 1
 
-if __name__ == "__main__":
+def test_all():
     Test()
 
+if __name__ == "__main__":
+    test_all()

quixote/test/test_request.py

@@ -1,4 +1,4 @@
-from sancho.utest import UTest
+from quixote.test.utest import UTest
 from quixote.http_request import parse_cookies
 
 
@@ -39,5 +39,8 @@ class ParseCookiesTest (UTest):
         parse_cookies('a="123')
         parse_cookies('a=123"')
 
-if __name__ == "__main__":
+def test_all():
     ParseCookiesTest()
+
+if __name__ == "__main__":
+    test_all()

quixote/test/utest.py

@@ -0,0 +1,13 @@
+# Minimal class to make old Sancho tests work with py.test.
+import types
+
+class UTest:
+    def __init__(self):
+        print('Running %s:' % self.__class__.__name__)
+        for name in dir(self):
+            # Find all methods starting with check_, call them.
+            if name.startswith('check_'):
+                method = getattr(self, name)
+                if isinstance(method, types.MethodType):
+                    print('  ', name)
+                    method()