tests: add deleteChannel tests

tests/channels/create_channel.ts

@@ -0,0 +1,26 @@
+import { cache, createChannel, delay } from "../../mod.ts";
+import { defaultTestOptions, tempData } from "../ws/start_bot.ts";
+import { assertEquals, assertExists } from "../deps.ts";
+
+Deno.test({
+  name: "[channel] create a new channel",
+  async fn() {
+    const channel = await createChannel(tempData.guildId, {
+      name: "Discordeno-test",
+    });
+
+    // Assertions
+    assertExists(channel);
+
+    tempData.channelId = channel.id;
+    assertEquals(tempData.channelId, channel.id);
+
+    // Delay the execution by 5 seconds to allow CHANNEL_CREATE event to be processed
+    await delay(5000);
+
+    if (!cache.channels.has(channel.id)) {
+      throw new Error("The channel seemed to be created but it was not cached.");
+    }
+  },
+  ...defaultTestOptions,
+});