WIP: Start of drop command tests

tests/__functions__/discord.js/GenerateCommandInteractionMock.ts

@@ -4,9 +4,14 @@ export default function GenerateCommandInteractionMock(options?: {
     subcommand?: string,
 }): CommandInteraction {
     return {
+        deferReply: jest.fn(),
+        editReply: jest.fn(),
         isChatInputCommand: jest.fn().mockReturnValue(true),
         options: {
             getSubcommand: jest.fn().mockReturnValue(options?.subcommand),
         },
+        user: {
+            id: "userId",
+        },
     };
 }

tests/__types__/discord.js.ts

@@ -19,8 +19,13 @@ export type ButtonInteraction = {
 }
 
 export type CommandInteraction = {
+    deferReply: jest.Func,
+    editReply: jest.Func,
     isChatInputCommand: jest.Func,
     options: {
         getSubcommand: jest.Func,
     },
+    user: {
+        id: string,
+    },
 }

tests/commands/drop.test.ts

@@ -1,7 +1,110 @@
-describe("GIVEN valid conditions", () => {
-    test.todo("EXPECT user.RemoveCurrency to be called");
+import { CommandInteraction } from "discord.js";
+import Drop from "../../src/commands/drop";
+import GenerateCommandInteractionMock from "../__functions__/discord.js/GenerateCommandInteractionMock";
+import { CommandInteraction as CommandInteractionMock } from "../__types__/discord.js";
+import { CoreClient } from "../../src/client/client";
+import Config from "../../src/database/entities/app/Config";
+import User from "../../src/database/entities/app/User";
+import GetCardsHelper from "../../src/helpers/DropHelpers/GetCardsHelper";
+import Inventory from "../../src/database/entities/app/Inventory";
+import DropEmbedHelper from "../../src/helpers/DropHelpers/DropEmbedHelper";
+import CardConstants from "../../src/constants/CardConstants";
 
-    test.todo("GIVEN user is saved");
+jest.mock("../../src/database/entities/app/Config");
+jest.mock("../../src/database/entities/app/User");
+jest.mock("../../src/helpers/DropHelpers/GetCardsHelper");
+jest.mock("../../src/database/entities/app/Inventory");
+jest.mock("../../src/helpers/DropHelpers/DropEmbedHelper");
+
+beforeEach(() => {
+    (Config.GetValue as jest.Mock).mockResolvedValue("false");
 });
 
-test.todo("GIVEN user.RemoveCurrency fails, EXPECT error replied");
+describe("execute", () => {
+    describe("GIVEN user is in the database", () => {
+        let interaction: CommandInteractionMock;
+        let user: User;
+
+        beforeAll(async () => {
+            // Arrange
+            CoreClient.AllowDrops = true;
+
+            interaction = GenerateCommandInteractionMock();
+
+            user = {
+                RemoveCurrency: jest.fn().mockReturnValue(true),
+                Save: jest.fn(),
+            } as unknown as User;
+
+            (User.FetchOneById as jest.Mock).mockResolvedValue(user);
+            (GetCardsHelper.FetchCard as jest.Mock).mockResolvedValue({
+                card: {
+                    path: "https://google.com/",
+                }
+            });
+            (Inventory.FetchOneByCardNumberAndUserId as jest.Mock).mockResolvedValue({
+                Quantity: 1,
+            });
+            (DropEmbedHelper.GenerateDropEmbed as jest.Mock).mockResolvedValue({
+                type: "Embed",
+            });
+            (DropEmbedHelper.GenerateDropButtons as jest.Mock).mockResolvedValue({
+                type: "Button",
+            });
+            
+            // Act
+            const drop = new Drop();
+            await drop.execute(interaction as unknown as CommandInteraction);
+        });
+
+        test("EXPECT user to be fetched", () => {
+            expect(User.FetchOneById).toHaveBeenCalledTimes(1);
+            expect(User.FetchOneById).toHaveBeenCalledWith(User, "userId");
+        });
+
+        test("EXPECT user.RemoveCurrency to be called", () => {
+            expect(user.RemoveCurrency).toHaveBeenCalledTimes(1);
+            expect(user.RemoveCurrency).toHaveBeenCalledWith(CardConstants.ClaimCost);
+        });
+
+        test.todo("EXPECT user to be saved");
+
+        test.todo("EXPECT random card to be fetched");
+
+        test.todo("EXPECT interaction to be deferred");
+
+        test.todo("EXPECT Inventory.FetchOneByCardNumberAndUserId to be called");
+
+        test.todo("EXPECT DropEmbedHelper.GenerateDropEmbed to be called");
+
+        test.todo("EXPECT DropEmbedHelper.GenerateDropButtons to be called");
+
+        test.todo("EXPECT interaction to be edited");
+
+        describe("AND randomCard path is not a url", () => {
+            test.todo("EXPECT image read from file system");
+
+            test.todo("EXPECT files on the embed to contain the image as an attachment");
+        });
+    });
+
+    describe("GIVEN user is not in the database", () => {
+        test.todo("EXPECT new user to be created");
+    });
+
+    describe("GIVEN user.RemoveCurrency fails", () => {
+        test.todo("EXPECT error replied");
+    });
+    
+    describe("GIVEN randomCard returns null", () => {
+        test.todo("EXPECT error logged");
+
+        test.todo("EXPECT error replied");
+    });
+
+    describe("GIVEN the code throws an error", () => {
+        test.todo("EXPECT error logged");
+
+        test.todo("EXPECT interaction edited with error");
+    });
+});