Configure Jest for TypeScript

.eslintrc

@@ -386,7 +386,9 @@
       "files": [
         "__mocks__/**/*.js",
         "**/test/**/*.js",
+        "**/test/**/*.ts",
         "**/testUtils/**/*.js",
+        "**/testUtils/**/*.ts",
         "tests/js/**/*.js"
       ],
       "excludedFiles": [
@@ -430,6 +432,16 @@
         "testing-library/no-dom-import": "error"
       }
     },
+    {
+      "files": [
+        "**/test/**/*.ts",
+        "**/testUtils/**/*.ts"
+      ],
+      "rules": {
+        "@typescript-eslint/unbound-method": "off",
+        "jest/unbound-method": "error"
+      }
+    },
     {
       "files": [
         "__mocks__/**/*.js"