Create __tests__ folder

.github/workflows/release_canary.yml

@@ -13,6 +13,7 @@ on:
       - '.storybook/**'
       - 'docs/**'
       - 'lib/**'
+      - '__tests__/**'
       - 'script/**'
       - 'static/**'
       - 'next.config.js'

.npmignore

@@ -8,9 +8,9 @@ now.json
 docs/
 docs-test/
 lib/
+__tests__/
 pages/
 script/
 # we ignore this because everything in src/ is copied out in script/prepublish
 src/
 static/
-tests/

__tests__/.eslintrc.json

@@ -0,0 +1,5 @@
+{
+  "extends": [
+    "plugin:jest/recommended"
+  ]
+}