tests: prepare to the glob & clean a bit

tests/assets/global.scss

@@ -0,0 +1,31 @@
+.p1 {
+    font-size: 10px;
+    color: white;
+    &-dark {
+        color: black;
+    }
+
+    :global(html.mob) & {
+        font-size: 1rem;
+
+        &-dark {
+            color: green;
+        }
+
+        :global(ie) some & {
+            border: 1px;
+        }
+    }
+
+    :global(html.dark) & {
+        color: orange;
+    }
+
+    :global(whatever) & {
+        background: yellow;
+
+        :global(ooops) & {
+            border: none;
+        }
+    }
+}