tests: add roles tests (#822)

tests/roles/swap_roles.ts

@@ -0,0 +1,45 @@
+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";
+import {swapRoles} from "../../src/helpers/roles/swap_roles.ts";
+import {delay} from "../../src/util/utils.ts";
+
+Deno.test({
+  name: "[role] swap roles",
+  async fn() {
+    const role = await createRole(tempData.guildId, {
+      name: "hoti",
+    });
+
+    assertExists(role);
+
+    const secondRole = await createRole(tempData.guildId, {
+      name: "not hoti",
+    });
+
+    assertExists(secondRole);
+
+    // 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) && cache.guilds.get(tempData.guildId)?.roles.has(secondRole.id));
+
+    if (!cache.guilds.get(tempData.guildId)?.roles.has(role.id) || !cache.guilds.get(tempData.guildId)?.roles.has(secondRole.id)) {
+      throw new Error(`The role seemed to be created but it was not cached.`);
+    }
+
+    const result = await swapRoles(tempData.guildId, [
+      {
+        id: role.id,
+      },
+      {
+        id: secondRole.id,
+      },
+    ]);
+
+    assertExists(result);
+  },
+  ...defaultTestOptions,
+});