Update parser to msc2644 and fix tests

package.json

@@ -6,8 +6,8 @@
     "@testing-library/jest-dom": "^4.2.4",
     "@testing-library/react": "^9.3.2",
     "@testing-library/user-event": "^7.1.2",
-    "@types/jest": "^24.0.0",
-    "@types/lodash": "^4.14.155",
+    "@types/jest": "^26.0.9",
+    "@types/lodash": "^4.14.159",
     "@types/node": "^12.0.0",
     "@types/react": "^16.9.0",
     "@types/react-dom": "^16.9.0",
@@ -54,6 +54,7 @@
     "husky": "^4.2.5",
     "lint-staged": "^10.2.7",
     "node-sass": "^4.14.1",
-    "prettier": "^2.0.5"
+    "prettier": "^2.0.5",
+    "ts-jest": "^26.1.4"
   }
 }