add role tests

tests/helpers/roles/deleteRole.ts

@@ -0,0 +1,29 @@
+import { Bot } from "../../../src/bot.ts";
+import { Cache } from "../../../src/cache.ts";
+import { assertExists } from "../../deps.ts";
+import { delayUntil } from "../../utils.ts";
+
+export async function deleteRoleTests(
+  bot: Bot<Cache>,
+  guildId: bigint,
+  options: { reason?: string },
+  t: Deno.TestContext
+) {
+  const role = await bot.helpers.createRole(guildId, { name: "hoti" }, options.reason);
+
+  assertExists(role);
+
+  // Delay the execution to allow event to be processed
+  await delayUntil(10000, () => bot.cache.guilds.get(guildId)?.roles.has(role.id));
+
+  assertExists(bot.cache.guilds.get(guildId)?.roles.has(role.id));
+
+  await bot.helpers.deleteRole(guildId, role.id);
+
+  // Delay the execution to allow event to be processed
+  await delayUntil(10000, () => !bot.cache.guilds.get(guildId)?.roles.has(role.id));
+
+  if (bot.cache.guilds.get(guildId)?.roles.has(role.id)) {
+    throw new Error(`The role should have been deleted but it is still in cache.`);
+  }
+}