feat(vanilla): add testing infrastructure and tests (NK-wjnczv)

1 files changed, 28 insertions, 0 deletions

diff --git a/vanilla/node_modules/css-tree/lib/convertor/create.js b/vanilla/node_modules/css-tree/lib/convertor/create.js
new file mode 100644
index 0000000..56e4333
--- /dev/null
+++ b/vanilla/node_modules/css-tree/lib/convertor/create.js
@@ -0,0 +1,28 @@
+import { List } from '../utils/List.js';
+
+export function createConvertor(walk) {
+    return {
+        fromPlainObject(ast) {
+            walk(ast, {
+                enter(node) {
+                    if (node.children && node.children instanceof List === false) {
+                        node.children = new List().fromArray(node.children);
+                    }
+                }
+            });
+
+            return ast;
+        },
+        toPlainObject(ast) {
+            walk(ast, {
+                leave(node) {
+                    if (node.children && node.children instanceof List) {
+                        node.children = node.children.toArray();
+                    }
+                }
+            });
+
+            return ast;
+        }
+    };
+};