tests: add roles tests (#822)

tests/roles/create_role.ts

@@ -0,0 +1,36 @@
+import { defaultTestOptions, tempData } from "../ws/start_bot.ts";
+import {assertExists} from "../deps.ts";
+import { cache } from "../../src/cache.ts";
+import { delayUntil } from "../util/delay_until.ts";
+import {createRole} from "../../src/helpers/roles/create_role.ts";
+
+async function ifItFailsBlameWolf(reason?: string) {
+  const role = await createRole(tempData.guildId, {
+    name: "hoti",
+  }, reason);
+
+  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.`);
+  }
+}
+
+Deno.test({
+  name: "[role] create a role without a reason",
+  async fn() {
+    await ifItFailsBlameWolf()
+  },
+  ...defaultTestOptions,
+});
+
+Deno.test({
+  name: "[role] create a role with a reason",
+  async fn() {
+    await ifItFailsBlameWolf( "with a reason")
+  },
+  ...defaultTestOptions,
+});