feat: add fake user creator

#19

src/mocks/fakers/index.ts

@@ -0,0 +1 @@
+export * from './user';

src/mocks/fakers/user.ts

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+import {faker} from '@faker-js/faker';
+
+import {getRandom} from './util';
+
+import {birthType, roles} from '@/constants';
+import type {Member} from '@/types';
+import {formatDate} from '@/utils';
+
+export function createUser(isHost: boolean): Member {
+  return {
+    nickName: faker.person.fullName(),
+    groupRole: getRandom(roles),
+    birth: formatDate(faker.date.birthdate()),
+    birthType: getRandom(birthType),
+    email: faker.internet.email(),
+    signUpDate: faker.date.past(),
+    isHost,
+  };
+}

src/mocks/fakers/util.ts

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+export function getRandomInt(min: number, max: number): number {
+  min = Math.ceil(min);
+  max = Math.floor(max);
+  return Math.floor(Math.random() * (max - min + 1)) + min;
+}
+
+export function getRandom<T>(source: readonly T[]): T {
+  return source[getRandomInt(0, source.length - 1)];
+}