diff --git a/components/__tests__/reducers.test.ts b/components/__tests__/reducers.test.ts
index 4c87609..c2b4a49 100644
--- a/components/__tests__/reducers.test.ts
+++ b/components/__tests__/reducers.test.ts
@@ -1,5 +1,5 @@
 import Movie from "../../model/Movie"
-import {describe, expect, test} from '@jest/globals'
+import {describe, expect} from '@jest/globals'
 import appReducer from "../../redux/reducers/appReducer"
 import {ADD_FAVOURITE, ADD_WATCHLATER, FETCH_TRENDING_MOVIE, LOAD_FAVOURITE, LOAD_WATCHLATER, POP_FIRST_TRENDING} from "../../redux/constants"
 
@@ -66,24 +66,107 @@ describe('test ADD_WATCHLATER', () => {
         })
     })
 })
-/*
-        case LOAD_WATCHLATER:
-            // @ts-ignore
-            return {...state, watchLaterMovies: action.payload};
-        case LOAD_FAVOURITE:
-            // @ts-ignore
-            return {...state, favouriteMovies: action.payload};
-        case FETCH_TRENDING_ID:
-            // @ts-ignore
-            return {...state, trendingIDs: action.payload};
-        case FETCH_WATCHLATER:
-            // @ts-ignore
-            return {...state, watchLaterMovies: action.payload};
-        case FETCH_FAVOURITE:
-            // @ts-ignore
-            return {...state, favouriteMovies: action.payload};
-        case FETCH_TRENDING_MOVIE:
-            return {...state, trendingMovies: action.payload};
-        case POP_FIRST_TRENDING:
-            return {...state, trendingMovies: [...state.trendingMovies.filter((item: Movie) => item !== action.payload)]};
-*/
\ No newline at end of file
+
+describe('test LOAD_WATCHLATER', () => {
+
+    let initialState = {
+        trendingIDs: [],
+        trendingMovies: [],
+        watchLaterMovies: [],
+        favouriteMovies: [],
+    }
+
+    it('should handle LOAD_WATCHLATER', () => {
+        const watchLater = new Movie(1, "Test", "", 1, 5, "2023", ["Halloween"], "", "")
+        const MovieList = [watchLater]
+        expect(
+            appReducer(initialState, {
+                type: LOAD_WATCHLATER,
+                payload: MovieList,
+            })
+        ).toEqual({
+            trendingIDs: [],
+            trendingMovies: [],
+            watchLaterMovies: [watchLater, ...initialState.watchLaterMovies],
+            favouriteMovies: [],
+        })
+    })
+})
+
+describe('test LOAD_FAVOURITE', () => {
+
+    let initialState = {
+        trendingIDs: [],
+        trendingMovies: [],
+        watchLaterMovies: [],
+        favouriteMovies: [],
+    }
+
+    it('should handle LOAD_FAVOURITE', () => {
+        const favourite = new Movie(1, "Test", "", 1, 5, "2023", ["Halloween"], "", "")
+        const MovieList = [favourite]
+        expect(
+            appReducer(initialState, {
+                type: LOAD_FAVOURITE,
+                payload: MovieList,
+            })
+        ).toEqual({
+            trendingIDs: [],
+            trendingMovies: [],
+            watchLaterMovies: [],
+            favouriteMovies: [favourite, ...initialState.favouriteMovies],
+        })
+    })
+})
+
+describe('test FETCH_TRENDING_MOVIE', () => {
+
+    let initialState = {
+        trendingIDs: [],
+        trendingMovies: [],
+        watchLaterMovies: [],
+        favouriteMovies: [],
+    }
+
+    it('should handle FETCH_TRENDING_MOVIE', () => {
+        const trending = new Movie(1, "Test", "", 1, 5, "2023", ["Halloween"], "", "")
+        const MovieList = [trending]
+        expect(
+            appReducer(initialState, {
+                type: FETCH_TRENDING_MOVIE,
+                payload: MovieList,
+            })
+        ).toEqual({
+            trendingIDs: [],
+            trendingMovies: [trending, ...initialState.trendingMovies],
+            watchLaterMovies: [],
+            favouriteMovies: [],
+        })
+    })
+})
+
+describe('test POP_FIRST_TRENDING', () => {
+
+    const trending = new Movie(1, "Test", "", 1, 5, "2023", ["Halloween"], "", "")
+
+    let initialState = {
+        trendingIDs: [],
+        trendingMovies: [trending],
+        watchLaterMovies: [],
+        favouriteMovies: [],
+    }
+
+    it('should handle POP_FIRST_TRENDING', () => {
+        expect(
+            appReducer(initialState, {
+                type: POP_FIRST_TRENDING,
+                payload: trending,
+            })
+        ).toEqual({
+            trendingIDs: [],
+            trendingMovies: [...initialState.trendingMovies.filter((item: Movie) => item !== trending)],
+            watchLaterMovies: [],
+            favouriteMovies: [],
+        })
+    })
+})
diff --git a/redux/reducers/appReducer.ts b/redux/reducers/appReducer.ts
index fd953ca..d3ac46f 100644
--- a/redux/reducers/appReducer.ts
+++ b/redux/reducers/appReducer.ts
@@ -3,7 +3,7 @@ import Movie from "../../model/Movie";
 
 const initialState = {
     trendingIDs: [],
-    trendingMovies: [],
+    trendingMovies: [] as Movie[],
     watchLaterMovies: [] as Movie[],
     favouriteMovies: [] as Movie[],
 }