add test for namespaced packages

test/test_evaluate/nested_namespaces/namespace/__init__.py

@@ -0,0 +1,4 @@
+try:
+    __import__('pkg_resources').declare_namespace(__name__)
+except ImportError:
+    pass

test/test_evaluate/nested_namespaces/namespace/pkg/__init__.py

@@ -0,0 +1 @@
+CONST = 1

test/test_evaluate/test_namespace_package.py

@@ -51,3 +51,15 @@ def test_namespace_package():
                 completion = c
         solution = "statement: foo = '%s'" % solution
         assert completion.description == solution
+
+
+def test_nested_namespace_package():
+    CODE = 'from nested_namespaces.namespace.pkg import CONST'
+
+    sys_path = [dirname(__file__)]
+
+    script = jedi.Script(sys_path=sys_path, source=CODE, line=1, column=45)
+
+    result = script.goto_definitions()
+
+    assert len(result) == 1