tests: add invites tests (#855)

* tests: add invites tests

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

tests/invites/create_invite.ts

@@ -0,0 +1,49 @@
+import { cache } from "../../src/cache.ts";
+import { createChannel } from "../../src/helpers/channels/create_channel.ts";
+import { defaultTestOptions, tempData } from "../ws/start_bot.ts";
+import { delayUntil } from "../util/delay_until.ts";
+import { assertEquals, assertExists } from "../deps.ts";
+import { isChannelSynced } from "../../src/helpers/channels/is_channel_synced.ts";
+import { DiscordChannelTypes } from "../../src/types/channels/channel_types.ts";
+import { botId } from "../../src/bot.ts";
+import { DiscordOverwriteTypes } from "../../src/types/channels/overwrite_types.ts";
+import { startTyping } from "../../src/helpers/channels/start_typing.ts";
+import { createInvite } from "../../src/helpers/invites/create_invite.ts";
+import { getInvite } from "../../src/helpers/invites/get_invite.ts";
+
+Deno.test({
+  name: "[invite] create invite",
+  async fn() {
+    const channel = await createChannel(tempData.guildId, {
+      name: "invite-channel",
+    });
+
+    // Assertions
+    assertExists(channel);
+
+    // Delay the execution by 5 seconds to allow CHANNEL_CREATE event to be processed
+    await delayUntil(10000, () => cache.channels.has(channel.id));
+
+    if (!cache.channels.has(channel.id)) {
+      throw new Error(
+        "The channel seemed to be created but it was not cached.",
+      );
+    }
+
+    const invite = await createInvite(channel.id, {
+      maxAge: 86400,
+      maxUses: 0,
+      temporary: false, // @ts-ignore
+      unique: false,
+    });
+
+    // Assertions
+    assertExists(invite);
+
+    assertEquals(
+      await getInvite(invite.code) !== undefined,
+      true,
+    );
+  },
+  ...defaultTestOptions,
+});