Install react-test-renderer

package-lock.json

@@ -8732,6 +8732,18 @@
         }
       }
     },
+    "react-test-renderer": {
+      "version": "16.8.6",
+      "resolved": "https://registry.npmjs.org/react-test-renderer/-/react-test-renderer-16.8.6.tgz",
+      "integrity": "sha512-H2srzU5IWYT6cZXof6AhUcx/wEyJddQ8l7cLM/F7gDXYyPr4oq+vCIxJYXVGhId1J706sqziAjuOEjyNkfgoEw==",
+      "dev": true,
+      "requires": {
+        "object-assign": "^4.1.1",
+        "prop-types": "^15.6.2",
+        "react-is": "^16.8.6",
+        "scheduler": "^0.13.6"
+      }
+    },
     "read-pkg": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-1.1.0.tgz",

package.json

@@ -45,6 +45,7 @@
     "react": "^16.8.6",
     "react-dom": "^16.8.6",
     "react-redux": "^7.0.3",
+    "react-test-renderer": "^16.8.6",
     "redux": "^4.0.1",
     "redux-promise": "^0.6.0",
     "sass-loader": "^7.1.0",