Starting testing Drawing KanjiPlaygroundList

src/test/drawingCanvas.test.tsx

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+import React from 'react';
+import { Provider } from "react-redux";
+import { configureStore } from "@reduxjs/toolkit";
+import { render, screen} from '@testing-library/react-native'
+import testReducer from "./testReducer";
+import KanjiPlaygroundList from "../components/KanjiPlaygroundList";
+
+
+jest.useFakeTimers();
+
+// @ts-ignore
+const store = configureStore({
+    reducer: {
+        kanjiReducer: testReducer,
+    },
+    middleware: (getDefaultMiddleware) =>
+        getDefaultMiddleware({
+            serializableCheck: false
+        })
+});
+
+const Wrapper = ({children}) => (<Provider store={store}>{children}</Provider>);
+
+describe('<KanjiPlaygroundList/>', () => {
+    test('Assert selected value', () => {
+
+        const expectedList = store.getState().kanjiReducer.playgroundList;
+        console.log(store)
+        render(
+            <Wrapper>
+                <KanjiPlaygroundList/>
+            </Wrapper>)
+
+        expect(screen.queryAllByTestId("kanji-list-item")).toHaveLength(expectedList.length);
+    })
+});

src/test/testReducer.ts

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+import { Kanji } from "../model/kanji";
+import { initKanjiListByGrade } from "../model/kanjiListByGrades";
+import kanjiReducer from "../redux/reducers/kanjiReducer";
+
+
+const initialState = {
+    kanjis: initKanjiListByGrade(),
+    selectedKanji: null,
+    playgroundList: [
+        new Kanji("訪", "visit", "", "", 11, "ホウ", "おとずれる", { character: "", position: "" }, [{
+            english: "visit", japanese: "訪ねる（たずねる）"
+        }]),
+        new Kanji("訪", "visit", "", "", 11, "ホウ", "おとずれる", { character: "", position: "" }, [{
+            english: "visit", japanese: "訪ねる（たずねる）"
+        }]),
+        new Kanji("訪", "visit", "", "", 11, "ホウ", "おとずれる", { character: "", position: "" }, [{
+            english: "visit", japanese: "訪ねる（たずねる）"
+        }]),
+    ]
+}
+
+export default testReducer = (state = initialState, action) => {
+    return kanjiReducer(initialState, action);
+}