From 42335ef57f1fb9083518a9cfd1ae0507834553f0 Mon Sep 17 00:00:00 2001
From: Haoqun Jiang <haoqunjiang@gmail.com>
Date: Sat, 7 Aug 2021 15:21:12 +0800
Subject: [PATCH] feat(unit-jest): add jest as a peer dependency

Eventually we need to update to Jest 27 + vue2-jest / vue3-jest
So let's make it a peer dependency to ease the pain of breaking changes.

To not surprise existing beta users, jest 26 is still listed as a direct
dependency in the next release.
---
 packages/@vue/cli-plugin-unit-jest/generator/index.js | 1 +
 packages/@vue/cli-plugin-unit-jest/migrator/index.js  | 4 +++-
 packages/@vue/cli-plugin-unit-jest/package.json       | 1 +
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/@vue/cli-plugin-unit-jest/generator/index.js b/packages/@vue/cli-plugin-unit-jest/generator/index.js
index 7ed8754f34..6ae1a140a0 100644
--- a/packages/@vue/cli-plugin-unit-jest/generator/index.js
+++ b/packages/@vue/cli-plugin-unit-jest/generator/index.js
@@ -12,6 +12,7 @@ module.exports = (api, options, rootOptions, invoking) => {
       'test:unit': 'vue-cli-service test:unit'
     },
     devDependencies: {
+      'jest': '^26.6.3',
       'vue-jest': isVue3 ? '^5.0.0-0' : '^4.0.1',
       '@vue/test-utils': isVue3 ? '^2.0.0-0' : '^1.1.3'
     },
diff --git a/packages/@vue/cli-plugin-unit-jest/migrator/index.js b/packages/@vue/cli-plugin-unit-jest/migrator/index.js
index 843b2cee53..1970d1a236 100644
--- a/packages/@vue/cli-plugin-unit-jest/migrator/index.js
+++ b/packages/@vue/cli-plugin-unit-jest/migrator/index.js
@@ -1,7 +1,9 @@
 /** @param {import('@vue/cli/lib/MigratorAPI')} api MigratorAPI */
 module.exports = (api) => {
   api.extendPackage(pkg => {
-    const newDevDeps = {}
+    const newDevDeps = {
+      'jest': '^26.6.3'
+    }
 
     const allDeps = {
       ...pkg.dependencies,
diff --git a/packages/@vue/cli-plugin-unit-jest/package.json b/packages/@vue/cli-plugin-unit-jest/package.json
index 071869d572..08ccf64656 100644
--- a/packages/@vue/cli-plugin-unit-jest/package.json
+++ b/packages/@vue/cli-plugin-unit-jest/package.json
@@ -41,6 +41,7 @@
   },
   "peerDependencies": {
     "@vue/cli-service": "^3.0.0 || ^4.0.0 || ^5.0.0-0",
+    "jest": "^26.3.3",
     "ts-jest": "^26.5.3",
     "vue-jest": "^4.0.1 || ^5.0.0-0"
   },