Add support for tests

I was trying to make a websocket test, but the "ws" library doesn't appear to be easily mocked and I prefer to use it over the built-in WebSocket. So we'll see what I can do in the future.

src/list-objects.ts

@@ -0,0 +1,93 @@
+import minimist from "minimist";
+import { FindUnits, Unit } from "./index.js";
+import { GetRequest, ICRequestObj } from "./messages/request.js";
+
+const argv = minimist(process.argv.slice(2));
+
+let endpoint = "";
+let port = 6680;
+if (typeof argv.controllerAddr === "string") {
+  endpoint = argv.controllerAddr;
+}
+if (typeof argv.controllerPort === "number") {
+  port = argv.controllerPort;
+}
+
+const example = async () => {
+  if (!endpoint) {
+    console.log("searching for units...");
+
+    let multicastAddr: string | undefined;
+    if (typeof argv.multicastAddr === "string") {
+      multicastAddr = argv.multicastAddr;
+    }
+    const finder = new FindUnits(multicastAddr);
+    const units = await finder.searchAsync(3000);
+    finder.close();
+
+    if (units.length === 0) {
+      throw new Error("no IntelliCenter units found, exiting.");
+    }
+
+    if (units.length > 1) {
+      throw new Error(
+        `found more than one IntelliCenter unit, unsure which one to use. ${JSON.stringify(units)}`,
+      );
+    }
+
+    endpoint = units[0].addressStr;
+    port = units[0].port;
+    console.log(`...found unit at ${endpoint}:${port.toString()}`);
+  }
+
+  if (!endpoint) {
+    throw new Error("invalid controller address");
+  }
+
+  console.log(`connecting to unit ${endpoint}:${port.toString()}...`);
+  const unit = new Unit(endpoint, port);
+  await unit.connect();
+  console.log("...connected.");
+
+  const customRequest = GetRequest();
+  customRequest.command = "GetParamList";
+  customRequest.condition = "";
+  const reqObj = new ICRequestObj();
+  reqObj.objnam = "ALL";
+  reqObj.keys = ["OBJTYP", "SUBTYP", "SNAME", "STATUS"];
+  customRequest.objectList = [reqObj];
+
+  console.log("requesting object info...");
+  const response = await unit.send(customRequest);
+  console.log("...received.");
+  console.log();
+
+  let objects = response.objectList;
+  if (argv.onlyToggleable) {
+    objects = response.objectList?.filter(
+      (obj) => obj.params?.STATUS === "ON" || obj.params?.STATUS === "OFF",
+    );
+  }
+
+  if (!objects) {
+    console.error("no objects found");
+  } else {
+    console.log("Found the following objects:");
+    console.log(`[OBJNM][Type(/Subtype)] "Friendly Name": CURRENT_STATUS`);
+    console.log("---------------------------------------");
+
+    for (const obj of objects
+      .filter((obj) => obj.params?.SNAME !== "SNAME")
+      .map(
+        (obj) =>
+          `[${obj.objnam}][${obj.params?.OBJTYP ?? ""}${obj.params?.SUBTYP !== "SUBTYP" ? `/${obj.params?.SUBTYP ?? ""}` : ""}] "${obj.params?.SNAME ?? ""}": ${obj.params?.STATUS ?? ""}`,
+      )) {
+      console.log(obj);
+    }
+  }
+
+  unit.close();
+};
+example().catch((e: unknown) => {
+  throw e;
+});