add proper deprecation warnings and warnings become error messages in Jedi; also deprecate CallSignature.call_name

conftest.py

@@ -27,6 +27,9 @@ def pytest_addoption(parser):
 
 
 def pytest_configure(config):
+    import warnings
+    warnings.simplefilter("error")
+
     global jedi_cache_directory_orig, jedi_cache_directory_temp
     jedi_cache_directory_orig = jedi.settings.cache_directory
     jedi_cache_directory_temp = tempfile.mkdtemp(prefix='jedi-test-')

jedi/api/classes.py

@@ -583,7 +583,14 @@ class CallSignature(Definition):
 
     @property
     def call_name(self):
-        """ The name (e.g. 'isinstance') as a string. """
+        """
+        .. deprecated:: 0.8.0
+           Use :attr:`.name` instead.
+        .. todo:: Remove!
+
+        The name (e.g. 'isinstance') as a string.
+        """
+        warnings.warn("Use name instead.", DeprecationWarning)
         return unicode(self._definition.name)
 
     def __repr__(self):
@@ -603,4 +610,5 @@ class Param(Definition):
 
         A function to get the whole code of the param.
         """
+        warnings.warn("Use description instead.", DeprecationWarning)
         return self.description

test/test_api/test_call_signatures.py

@@ -193,7 +193,8 @@ def test_signature_is_definition():
 
     # Now compare all the attributes that a CallSignature must also have.
     for attr_name in dir(definition):
-        if attr_name.startswith('_') or attr_name == 'defined_names':
+        dont_scan = ['defined_names', 'line_nr', 'start_pos']
+        if attr_name.startswith('_') or attr_name in dont_scan:
             continue
         attribute = getattr(definition, attr_name)
         signature_attribute = getattr(signature, attr_name)