test(preset): add header case for remark

packages/preset-dumi/src/transformer/fixtures/raw/remark-header.md

@@ -0,0 +1,5 @@
+# H1
+
+## H2
+
+### H3 with <Badge>I will be ignored</Badge>

packages/preset-dumi/src/transformer/test/remark-header.test.ts

@@ -0,0 +1,25 @@
+import fs from 'fs';
+import path from 'path';
+import remark from '../remark';
+
+describe('basic example', () => {
+  const FILE_PATH = path.join(__dirname, '../fixtures/raw/remark-header.md');
+
+  it('transform md to jsx', () => {
+    const result = remark(fs.readFileSync(FILE_PATH).toString(), {
+      fileAbsPath: FILE_PATH,
+      strategy: 'default',
+      previewLangs: [],
+    });
+
+    expect(result.data.slugs).toEqual([
+      { depth: 1, value: 'H1', heading: 'h1' },
+      { depth: 2, value: 'H2', heading: 'h2' },
+      {
+        depth: 3,
+        value: 'H3 with ',
+        heading: 'h3-with-i-will-be-ignored',
+      },
+    ]);
+  });
+});