Update sidebar GUI test

Author: GuillaumeGomez

tests/gui/sidebar.goml

@@ -12,32 +12,24 @@ define-function: (
     "hide-sidebar",
     [],
     block {
-        // The content should be "moved" to the right because of the sidebar.
-        assert-css: ("#sidebar", {"transform": "none"})
         assert-position: ("#page-wrapper", {"x": |content_indent|})
 
         // We now hide the sidebar.
         click: "#sidebar-toggle"
-        wait-for: "body.sidebar-hidden"
-        // `transform` is 0.3s so we need to wait a bit (0.5s) to ensure the animation is done.
-        wait-for: 5000
-        assert-css-false: ("#sidebar", {"transform": "none"})
-        // The page content should now be on the left.
-        assert-position: ("#page-wrapper", {"x": 0})
+        wait-for-css: ("#sidebar", {"display": "none"})
     },
 )
 
 define-function: (
     "show-sidebar",
     [],
     block {
-        // The page content should be on the left and the sidebar "moved out".
-        assert-css: ("#sidebar", {"transform": "matrix(1, 0, 0, 1, -308, 0)"})
+        assert-css: ("#sidebar", {"display": "none"})
         assert-position: ("#page-wrapper", {"x": 0})
 
         // We expand the sidebar.
         click: "#sidebar-toggle"
-        wait-for: "body.sidebar-visible"
+        wait-for-css-false: ("#sidebar", {"display": "none"})
         // `transform` is 0.3s so we need to wait a bit (0.5s) to ensure the animation is done.
         wait-for: 5000
         assert-css-false: ("#sidebar", {"transform": "matrix(1, 0, 0, 1, -308, 0)"})