refactor(preset): explicitly define jsdom for test environment (#621)

Jest 27 sets default test environment to `node`. Since we need `jsdom` so we need to explicitly set it in `jest-preset.js`. Jest 27 will still bundle `jest-environment-jsdom` in the main package and Jest 28 will detach them. However, we should just go ahead and set explicitly `jest-environment-jsdom` in our dependencies list More information see https://jestjs.io/blog/2020/05/05/jest-26
thymikee · Nov 10, 2020 · ef0057f · ef0057f
1 parent 779fd8c
commit ef0057f
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diff --git a/jest-preset.js b/jest-preset.js
@@ -11,6 +11,7 @@ module.exports = {
       },
     },
   },
+  testEnvironment: 'jsdom',
   transform: {
     '^.+\\.(ts|js|html)$': 'ts-jest',
   },

diff --git a/package.json b/package.json
@@ -29,6 +29,7 @@
   },
   "dependencies": {
     "@jest/create-cache-key-function": "^26.5.0",
+    "jest-environment-jsdom": "^26.6.2",
     "pretty-format": "26.x",
     "ts-jest": "^26.2.0"
   },