Add a choose-venv test

test/vspec/choose-venv.vim

@@ -0,0 +1,29 @@
+source plugin/jedi.vim
+source test/_utils.vim
+
+describe 'simple:'
+    before
+        new
+        normal! ifoo
+    end
+
+    after
+        bd!
+    end
+
+    it 'choose'
+        Expect g:jedi#environment_path == 'auto'
+        Expect bufname() == ''
+
+        JediChooseEnvironment
+        " A Python executable needs to be a few letters
+        Expect len(getline('.')) > 5
+        Expect bufname() == 'Hit Enter to Choose an Environment'
+
+        execute "normal \<CR>"
+        Expect g:jedi#environment_path != 'auto'
+        bd " TODO why is this necessary? There seems to be a random buffer.
+        Expect bufname() == ''
+        Expect getline('.') == 'foo'
+    end
+end