Parsing variable values as individual tokens

tests/css/test_parse.py

@@ -1,12 +1,21 @@
 import pytest
 from rich.color import Color, ColorType
 
+# from textual.css.parse import _resolve_variables
 from textual.css.scalar import Scalar, Unit
 from textual.css.stylesheet import Stylesheet, StylesheetParseError
+from textual.css.tokenize import tokenize
 from textual.css.transition import Transition
 from textual.layouts.dock import DockLayout
 
 
+# class TestVariableResolution:
+#     def test_resolve_single_variable(self):
+#         css = "$x: 1;"
+#         variables = _resolve_variables(tokenize(css, ""))
+#         assert variables == {"x": }
+
+
 class TestParseLayout:
     def test_valid_layout_name(self):
         css = "#some-widget { layout: dock; }"