test: add case for umi babel-plugin-dynamic-import-node

e2e/fixtures.umi/config.babel-plugin-dynamic-import-node/.umirc.ts

@@ -0,0 +1,4 @@
+export default {
+  mako: {},
+  extraBabelPlugins: ['babel-plugin-dynamic-import-node'],
+};

e2e/fixtures.umi/config.babel-plugin-dynamic-import-node/async.ts

@@ -0,0 +1 @@
+export default 'a';

e2e/fixtures.umi/config.babel-plugin-dynamic-import-node/expect.js

@@ -0,0 +1,11 @@
+const assert = require("assert");
+const { parseBuildResult } = require("../../../scripts/test-utils");
+const { files } = parseBuildResult(__dirname);
+
+const jsFilesCount = Object.keys(files).filter(f => f.endsWith('.js')).length;
+
+assert.equal(
+  jsFilesCount,
+  1,
+  'should output one js file',
+);

e2e/fixtures.umi/config.babel-plugin-dynamic-import-node/pages/index.tsx

@@ -0,0 +1,3 @@
+console.log('single file');
+
+import('../async');