From 99a8ff7b6b901d3e5df3ed02b5796c730b95eedf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=99=88=E5=98=89=E6=B6=B5?= <chenjiahan@youzan.com>
Date: Tue, 24 Dec 2019 14:20:22 +0800
Subject: [PATCH] feat(cli): support custom jest config

---
 packages/vant-cli/src/config/jest.config.ts | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/packages/vant-cli/src/config/jest.config.ts b/packages/vant-cli/src/config/jest.config.ts
index cdf1c84d7..515a53373 100644
--- a/packages/vant-cli/src/config/jest.config.ts
+++ b/packages/vant-cli/src/config/jest.config.ts
@@ -1,10 +1,13 @@
+import { join } from 'path';
+import { existsSync } from 'fs-extra';
 import {
+  ROOT,
   JEST_INIT_FILE,
   JEST_FILE_MOCK_FILE,
   JEST_STYLE_MOCK_FILE
 } from '../common/constant';
 
-module.exports = {
+const DEFAULT_CONFIG = {
   moduleNameMapper: {
     '\\.(css|less|scss)$': JEST_STYLE_MOCK_FILE,
     '\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$': JEST_FILE_MOCK_FILE
@@ -26,3 +29,18 @@ module.exports = {
   coverageReporters: ['html', 'lcov', 'text-summary'],
   coverageDirectory: './test/coverage'
 };
+
+function readRootConfig() {
+  const ROOT_CONFIG_PATH = join(ROOT, 'jest.config.js');
+
+  if (existsSync(ROOT_CONFIG_PATH)) {
+    return require(ROOT_CONFIG_PATH);
+  }
+
+  return {};
+}
+
+module.exports = {
+  ...DEFAULT_CONFIG,
+  ...readRootConfig()
+};