tests: add roles tests (#822)

tests/roles/add_role.ts

@@ -0,0 +1,65 @@
+import { defaultTestOptions, tempData } from "../ws/start_bot.ts";
+import {assertEquals, assertExists} from "../deps.ts";
+import { cache } from "../../src/cache.ts";
+import { delayUntil } from "../util/delay_until.ts";
+import {addRole} from "../../src/helpers/roles/add_role.ts";
+import {createRole} from "../../src/helpers/roles/create_role.ts";
+import {botId} from "../../src/bot.ts";
+
+async function ifItFailsBlameWolf(type: "getter" | "raw", reason?: string) {
+  const role = await createRole(tempData.guildId, {
+    name: "hoti",
+  });
+
+  assertExists(role);
+
+  // Delay the execution by 5 seconds to allow GUILD_ROLE_CREATE event to be processed
+  await delayUntil(10000, () => cache.guilds.get(tempData.guildId)?.roles.has(role.id));
+
+  if (!cache.guilds.get(tempData.guildId)?.roles.has(role.id)) {
+    throw new Error(`The role seemed to be created but it was not cached.`);
+  }
+
+  if (type === "raw") {
+    await addRole(tempData.guildId, botId, role.id, reason);
+  } else {
+    await cache.members.get(botId).addRole(tempData.guildId, role.id, reason);
+  }
+
+  // Delay the execution by 5 seconds to allow GUILD_MEMBER_UPDATE event to be processed
+  await delayUntil(10000, () => cache.members.get(botId)?.guilds.get(tempData.guildId).roles.includes(role.id));
+
+  assertEquals(cache.members.get(botId)?.guilds.get(tempData.guildId).roles.includes(role.id), true);
+}
+
+Deno.test({
+  name: "[role] add a role without a reason",
+  async fn() {
+    await ifItFailsBlameWolf("raw")
+  },
+  ...defaultTestOptions,
+});
+
+Deno.test({
+  name: "[role] add a role with a reason",
+  async fn() {
+    await ifItFailsBlameWolf("raw", "with a reason")
+  },
+  ...defaultTestOptions,
+});
+
+Deno.test({
+  name: "[role] member.addRole() without a reason",
+  async fn() {
+    await ifItFailsBlameWolf("getter")
+  },
+  ...defaultTestOptions,
+});
+
+Deno.test({
+  name: "[role] member.addRole() with a reason",
+  async fn() {
+    await ifItFailsBlameWolf("getter", "with a reason")
+  },
+  ...defaultTestOptions,
+});