Move some stdlib tests.

test/test_evaluate/test_stdlib.py

@@ -0,0 +1,45 @@
+"""
+Tests of various stdlib related things that could not be tested
+with "Black Box Tests".
+"""
+from textwrap import dedent
+
+import pytest
+from jedi import Script
+from jedi._compatibility import is_py26
+
+# The namedtuple is different for different Python2.7 versions. Some versions
+# are missing the attribute `_class_template`.
+pytestmark = pytest.mark.skipif('sys.version_info[0] < 3')
+
+
+@pytest.mark.parametrize(['letter', 'expected'], [
+    ('n', ['name']),
+    ('s', ['smart']),
+])
+def test_namedtuple_str(letter, expected):
+    source = dedent("""\
+        import collections
+        Person = collections.namedtuple('Person', 'name smart')
+        dave = Person('Dave', False)
+        dave.%s""") % letter
+    result = Script(source).completions()
+    completions = set(r.name for r in result)
+    if is_py26:
+        assert completions == set()
+    else:
+        assert completions == set(expected)
+
+
+def test_namedtuple_list():
+    source = dedent("""\
+        import collections
+        Cat = collections.namedtuple('Person', ['legs', u'length', 'large'])
+        garfield = Cat(4, '85cm', True)
+        garfield.l""")
+    result = Script(source).completions()
+    completions = set(r.name for r in result)
+    if is_py26:
+        assert completions == set()
+    else:
+        assert completions == set(['legs', 'length', 'large'])