use _ctypes for extension tests

test/test_evaluate/test_extension.py

@@ -2,41 +2,30 @@
 Test compiled module
 """
 import os
-import platform
-import sys
+
 import jedi
 
-from ..helpers import cwd_at
 
-
-@cwd_at('test/test_evaluate/extensions')
 def test_completions():
-    if platform.architecture()[0] == '64bit':
-        package_name = "compiled%s%s" % sys.version_info[:2]
-        sys.path.insert(0, os.getcwd())
-        if os.path.exists(package_name):
-            s = jedi.Script("from %s import compiled; compiled." % package_name)
-            assert len(s.completions()) >= 2
+    s = jedi.Script('import _ctypes; _ctypes.')
+    assert len(s.completions()) >= 15
 
 
-@cwd_at('test/test_evaluate/extensions')
 def test_call_signatures_extension():
-    # with a cython extension
-    if platform.architecture()[0] == '64bit':
-        package_name = "compiled%s%s" % sys.version_info[:2]
-        sys.path.insert(0, os.getcwd())
-        if os.path.exists(package_name):
-            s = jedi.Script("from %s import compiled; compiled.Foo(" %
-                            package_name)
-            defs = s.call_signatures()
-            for call_def in defs:
-                for param in call_def.params:
-                    pass
+    if os.name == 'nt':
+        func = 'LoadLibrary'
+        params = 1
+    else:
+        func = 'dlopen'
+        params = 2
+    s = jedi.Script('import _ctypes; _ctypes.%s(' % (func,))
+    sigs = s.call_signatures()
+    assert len(sigs) == 1
+    assert len(sigs[0].params) == params
 
 
 def test_call_signatures_stdlib():
-    code = "import math; math.cos("
-    s = jedi.Script(code)
-    defs = s.call_signatures()
-    for call_def in defs:
-        assert len(call_def.params) == 1
+    s = jedi.Script('import math; math.cos(')
+    sigs = s.call_signatures()
+    assert len(sigs) == 1
+    assert len(sigs[0].params) == 1