Add tests for each case

packages/remark-lsx/src/client/services/renderer/lsx.spec.ts

@@ -0,0 +1,50 @@
+import type { LeafGrowiPluginDirective } from '@growi/remark-growi-directive';
+import { remarkGrowiDirectivePluginType } from '@growi/remark-growi-directive';
+
+import { remarkPlugin } from './lsx';
+
+const createNode = (
+  attributes: Record<string, string>,
+): LeafGrowiPluginDirective => ({
+  type: remarkGrowiDirectivePluginType.Leaf,
+  name: 'lsx',
+  attributes,
+  children: [],
+});
+
+const runPlugin = (node: LeafGrowiPluginDirective) => {
+  const tree = { type: 'root', children: [node] };
+  (remarkPlugin as () => (tree: unknown) => void)()(tree);
+};
+
+describe('remarkPlugin', () => {
+  describe('prefix extraction', () => {
+    it('case 1: should use explicit prefix attribute', () => {
+      // $lsx(prefix=/path)
+      const node = createNode({ prefix: '/path' });
+      runPlugin(node);
+      expect(node.data?.hProperties).toMatchObject({ prefix: '/path' });
+    });
+
+    it('case 2: should use first bare attribute as prefix', () => {
+      // $lsx(/path)
+      const node = createNode({ '/path': '' });
+      runPlugin(node);
+      expect(node.data?.hProperties).toMatchObject({ prefix: '/path' });
+    });
+
+    it('case 3: should prefer explicit prefix over bare attribute', () => {
+      // $lsx(/foo, prefix=/bar)
+      const node = createNode({ '/foo': '', prefix: '/bar' });
+      runPlugin(node);
+      expect(node.data?.hProperties).toMatchObject({ prefix: '/bar' });
+    });
+
+    it('case 4: should join consecutive bare attributes as prefix when path contains spaces', () => {
+      // $lsx(/foo bar) - micromark parser splits "/foo bar" into "/foo" and "bar"
+      const node = createNode({ '/foo': '', bar: '' });
+      runPlugin(node);
+      expect(node.data?.hProperties).toMatchObject({ prefix: '/foo bar' });
+    });
+  });
+});