.gitignore

@@ -104,3 +104,4 @@ dist
 .tern-port
 
 config.json
+.DS_Store

src/contracts/IEventReturnContext.ts

@@ -0,0 +1,6 @@
+import { MessageEmbed } from "discord.js";
+import { ICommandContext } from "./ICommandContext";
+
+export default interface ICommandReturnContext {
+    embeds: MessageEmbed[]
+}

src/events/MemberEvents.ts

@@ -2,35 +2,48 @@ import { Event } from "../type/event";
 import { GuildMember } from "discord.js";
 import EventEmbed from "../helpers/embeds/EventEmbed";
 import GuildMemberUpdate from "./MemberEvents/GuildMemberUpdate";
+import IEventReturnContext from "../contracts/IEventReturnContext";
 
 export default class MemberEvents extends Event {
     constructor() {
         super();
     }
 
-    public override guildMemberAdd(member: GuildMember) {
+    public override guildMemberAdd(member: GuildMember): IEventReturnContext {
         const embed = new EventEmbed(member.guild, "Member Joined");
         embed.AddUser("User", member.user, true);
         embed.addField("Created", member.user.createdAt);
         embed.setFooter(`Id: ${member.user.id}`);
 
         embed.SendToMemberLogsChannel();
+
+        return {
+            embeds: [embed]
+        };
     }
 
-    public override guildMemberRemove(member: GuildMember) {
+    public override guildMemberRemove(member: GuildMember): IEventReturnContext {
         const embed = new EventEmbed(member.guild, "Member Left");
         embed.AddUser("User", member.user, true);
         embed.addField("Joined", member.joinedAt);
         embed.setFooter(`Id: ${member.user.id}`);
 
         embed.SendToMemberLogsChannel();
+
+        return {
+            embeds: [embed]
+        };
     }
 
-    public override guildMemberUpdate(oldMember: GuildMember, newMember: GuildMember) {
+    public override guildMemberUpdate(oldMember: GuildMember, newMember: GuildMember): IEventReturnContext {
         const handler = new GuildMemberUpdate(oldMember, newMember);
 
         if (oldMember.nickname != newMember.nickname) { // Nickname change
             handler.NicknameChanged();
         }
+
+        return {
+            embeds: []
+        };
     }
 }

tests/events/MemberEvents.test.ts

@@ -0,0 +1,164 @@
+import { GuildMember, TextChannel, User } from "discord.js";
+import MemberEvents from "../../src/events/MemberEvents";
+import GuildMemberUpdate from "../../src/events/MemberEvents/GuildMemberUpdate";
+
+describe('GuildMemberAdd', () => {
+    test('When event is fired, expect embed to be sent to logs channel', () => {
+        const currentDate = new Date();
+
+        const textChannel = {
+            send: jest.fn()
+        } as unknown as TextChannel;
+
+        const memberGuildChannelsCacheFind = jest.fn()
+            .mockReturnValue(textChannel);
+        const userDisplayAvatarURL = jest.fn();
+
+        const guildUser = {
+            tag: 'USERTAG',
+            createdAt: currentDate,
+            id: 'USERID',
+            displayAvatarURL: userDisplayAvatarURL
+        } as unknown as User;
+
+        const guildMember = {
+            user: guildUser,
+            guild: {
+                channels: {
+                    cache: {
+                        find: memberGuildChannelsCacheFind
+                    }
+                }
+            }
+        } as unknown as GuildMember;
+
+        const memberEvents = new MemberEvents();
+
+        const result = memberEvents.guildMemberAdd(guildMember);
+
+        expect(textChannel.send).toBeCalledTimes(1);
+        expect(userDisplayAvatarURL).toBeCalledTimes(1);
+        expect(result.embeds.length).toBe(1);
+
+        // Embed
+        const embed = result.embeds[0];
+
+        expect(embed.title).toBe("Member Joined");
+        expect(embed.footer?.text).toBe("Id: USERID");
+        expect(embed.fields.length).toBe(2);
+
+        // Embed -> User Field
+        const embedFieldUser = embed.fields[0];
+
+        expect(embedFieldUser.name).toBe("User");
+        expect(embedFieldUser.value).toBe("[object Object] `USERTAG`");
+        expect(embedFieldUser.inline).toBeTruthy();
+
+        // Embed -> Created Field
+        const embedFieldCreated = embed.fields[1];
+
+        expect(embedFieldCreated.name).toBe("Created");
+        expect(embedFieldCreated.value).toBe(currentDate.toString());
+    });
+});
+
+describe('GuildMemberRemove', () => {
+    test('When event is fired, expect embed to be sent to logs channel', () => {
+        const currentDate = new Date();
+
+        const textChannel = {
+            send: jest.fn()
+        } as unknown as TextChannel;
+
+        const memberGuildChannelsCacheFind = jest.fn()
+            .mockReturnValue(textChannel);
+        const userDisplayAvatarURL = jest.fn();
+
+        const guildUser = {
+            tag: 'USERTAG',
+            createdAt: currentDate,
+            id: 'USERID',
+            displayAvatarURL: userDisplayAvatarURL
+        } as unknown as User;
+
+        const guildMember = {
+            user: guildUser,
+            guild: {
+                channels: {
+                    cache: {
+                        find: memberGuildChannelsCacheFind
+                    }
+                }
+            },
+            joinedAt: currentDate
+        } as unknown as GuildMember;
+
+        const memberEvents = new MemberEvents();
+
+        const result = memberEvents.guildMemberRemove(guildMember);
+
+        expect(textChannel.send).toBeCalledTimes(1);
+        expect(userDisplayAvatarURL).toBeCalledTimes(1);
+        expect(result.embeds.length).toBe(1);
+
+        // Embed
+        const embed = result.embeds[0];
+
+        expect(embed.title).toBe("Member Left");
+        expect(embed.footer?.text).toBe("Id: USERID");
+        expect(embed.fields.length).toBe(2);
+
+        // Embed -> User Field
+        const embedFieldUser = embed.fields[0];
+
+        expect(embedFieldUser.name).toBe("User");
+        expect(embedFieldUser.value).toBe("[object Object] `USERTAG`");
+        expect(embedFieldUser.inline).toBeTruthy();
+
+        // Embed -> Joined Field
+        const embedFieldJoined = embed.fields[1];
+
+        expect(embedFieldJoined.name).toBe("Joined");
+        expect(embedFieldJoined.value).toBe(currentDate.toString());
+    });
+});
+
+describe('GuildMemberUpdate', () => {
+    test('Given nicknames are the same, expect NicknameChanged NOT to be called', () => {
+        const member = {
+            nickname: 'member'
+        } as unknown as GuildMember;
+
+        const nicknameChanged = jest.fn();
+
+        GuildMemberUpdate.prototype.NicknameChanged = nicknameChanged;
+
+        const memberEvents = new MemberEvents();
+
+        const result = memberEvents.guildMemberUpdate(member, member);
+
+        expect(result.embeds.length).toBe(0);
+        expect(nicknameChanged).not.toBeCalled();
+    });
+
+    test('Given nicknames are the different, expect NicknameChanged to be called', () => {
+        const oldMember = {
+            nickname: 'oldMember'
+        } as unknown as GuildMember;
+
+        const newMember = {
+            nickname: 'newMember'
+        } as unknown as GuildMember;
+
+        const nicknameChanged = jest.fn();
+
+        GuildMemberUpdate.prototype.NicknameChanged = nicknameChanged;
+
+        const memberEvents = new MemberEvents();
+
+        const result = memberEvents.guildMemberUpdate(oldMember, newMember);
+
+        expect(result.embeds.length).toBe(0);
+        expect(nicknameChanged).toBeCalledTimes(1);
+    });
+});