Merge pull request #19 from wellcometrust/task/8978-upgrade-to-react-17

8978 task: Upgraded to React 17

Author: creido-welly

package-lock.json

@@ -44,8 +44,8 @@
   "license": "MIT",
   "homepage": "https://github.com/wellcometrust/design-system#readme",
   "peerDependencies": {
-    "react": "^16.12.0 || ^17.0.2",
-    "react-dom": "^16.12.0 || ^17.0.2"
+    "react": "^17.0.2",
+    "react-dom": "^17.0.2"
   },
   "dependencies": {
     "@babel/runtime": "^7.8.4",
@@ -79,8 +79,8 @@
     "@types/jest": "^26.0.23",
     "@types/lodash": "^4.14.171",
     "@types/node": "^12.12.22",
-    "@types/react": "^16.9.17",
-    "@types/react-dom": "^16.9.4",
+    "@types/react": "^17.0.34",
+    "@types/react-dom": "^17.0.11",
     "@types/testing-library__jest-dom": "^5.9.5",
     "@typescript-eslint/eslint-plugin": "^4.26.1",
     "@typescript-eslint/parser": "^4.26.1",
@@ -108,10 +108,10 @@
     "postcss": "^8.0.9",
     "postcss-calc": "^7.0.4",
     "prettier": "^1.18.2",
-    "react": "16.12.0",
+    "react": "^17.0.2",
     "react-docgen-typescript": "^1.22.0",
     "react-docgen-typescript-loader": "^3.6.0",
-    "react-dom": "16.12.0",
+    "react-dom": "^17.0.2",
     "rollup": "^2.28.2",
     "rollup-plugin-copy": "^3.4.0",
     "rollup-plugin-ignore-import": "^1.3.2",

package.json

@@ -21,5 +21,5 @@ test('Disabled Button component is not accessible', () => {
   });
 
   expect(button).toBeInTheDocument();
-  expect(button).toHaveAttribute('disabled');
+  expect(button).toBeDisabled();
 });