tests: add invites tests (#855)

* tests: add invites tests

Co-authored-by: TriForMine <TriForMine@users.noreply.github.com>

tests/invites/get_invites.ts

@@ -0,0 +1,33 @@
+import { defaultTestOptions, tempData } from "../ws/start_bot.ts";
+import { assertEquals } from "../deps.ts";
+import { getInvites } from "../../src/helpers/invites/get_invites.ts";
+import { cache } from "../../src/cache.ts";
+
+async function ifItFailsBlameWolf(type: "getter" | "raw") {
+  let invites;
+
+  if (type === "raw") {
+    invites = await getInvites(tempData.guildId);
+  } else {
+    const guild = cache.guilds.get(tempData.guildId);
+    invites = await guild?.invites();
+  }
+
+  assertEquals((invites?.size || 0) >= 0, true);
+}
+
+Deno.test({
+  name: "[invite] get invites",
+  async fn() {
+    await ifItFailsBlameWolf("raw");
+  },
+  ...defaultTestOptions,
+});
+
+Deno.test({
+  name: "[invite] guild.invites()",
+  async fn() {
+    await ifItFailsBlameWolf("getter");
+  },
+  ...defaultTestOptions,
+});