Add some style unit tests.

unittests/teststyles.py

@@ -0,0 +1,58 @@
+#@PydevCodeAnalysisIgnore
+import unittest
+
+import renpy
+renpy.import_all()
+from renpy.styleaccel import Style, StyleManager
+
+
+class TestStyles(unittest.TestCase):
+
+    def test_set_prefix(self):
+        s = Style(None)
+
+        s.bold = "insensitive"
+        s.hover_bold = "hover"
+        s.selected_bold = "selected"
+        s.selected_hover_bold = "selected_hover"
+
+        renpy.styleaccel.build_style(s)
+
+        assert s.bold == "insensitive"
+
+        s.set_prefix("hover_")
+        assert s.bold == "hover"
+
+        s.set_prefix("selected_idle_")
+        assert s.bold == "selected"
+
+        s.set_prefix("selected_hover_")
+        assert s.bold == "selected_hover"
+
+        s.set_prefix("insensitive_")
+        assert s.bold == "insensitive"
+
+    def test_inheritance(self):
+
+        sm = StyleManager()
+
+        sm.default = Style(None)
+
+        assert sm.default is sm.default
+        assert sm.default.name == ("default",)
+        assert sm.default.parent is None
+
+        assert sm.prefs_default is sm.prefs_default
+        assert sm.prefs_default.name == ("prefs_default",)
+        assert sm.prefs_default.parent == ("default",)
+
+        assert sm.default["foo"] is sm.default["foo"]
+        assert sm.default["foo"].name == ("default","foo")
+        assert sm.default["foo"].parent is None
+
+        assert sm.prefs_default["foo"] is sm.prefs_default["foo"]
+        assert sm.prefs_default["foo"].name == ("prefs_default","foo")
+        assert sm.prefs_default["foo"].parent == ("default","foo")
+
+
+