feat: make each plugin an npm workspace built by a termix-plugin CLI

plugins/host-metrics/tests/backend/widgets/network-collector.test.ts

@@ -0,0 +1,92 @@
+import { describe, expect, it } from "vitest";
+import {
+  counterRate,
+  parseNetworkCounters,
+  parseDarwinIfconfig,
+  parseDarwinNetstat,
+  parseWindowsAdapterJson,
+} from "../../../src/backend/widgets/network-collector.js";
+
+const PROC_NET = `Inter-|   Receive                                                |  Transmit
+ face |bytes packets errs drop fifo frame compressed multicast|bytes packets errs drop fifo colls carrier compressed
+  eth0: 1024 1 0 0 0 0 0 0 2048 2 0 0 0 0 0 0
+    lo: 4096 4 0 0 0 0 0 0 4096 4 0 0 0 0 0 0`;
+
+describe("network counters", () => {
+  it("parses Linux proc counters", () => {
+    expect(parseNetworkCounters(PROC_NET).get("eth0")).toEqual({
+      rx: "1024",
+      tx: "2048",
+    });
+  });
+
+  it("calculates bytes per second and rejects counter resets", () => {
+    expect(counterRate("1000", "2500", 0.5)).toBe(3000);
+    expect(counterRate("2500", "1000", 0.5)).toBeNull();
+  });
+});
+
+const DARWIN_IFCONFIG = `lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
+	inet 127.0.0.1 netmask 0xff000000
+en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
+	ether ac:de:48:00:11:22
+	inet 192.168.1.5 netmask 0xffffff00 broadcast 192.168.1.255
+	status: active
+en1: flags=8822<BROADCAST,SMART,SIMPLEX,MULTICAST> mtu 1500
+	ether ac:de:48:00:11:23
+	status: inactive`;
+
+const DARWIN_NETSTAT = `Name  Mtu   Network       Address            Ipkts Ierrs     Ibytes    Opkts Oerrs     Obytes  Coll
+lo0   16384 <Link#1>                        466472     0   62511610   466472     0   62511610     0
+lo0   16384 127           127.0.0.1          466472     -   62511610   466472     -   62511610     -
+en0   1500  <Link#4>    ac:de:48:00:11:22   123456     0  987654321    65432     0  123456789     0
+en0   1500  192.168.1     192.168.1.5        123456     -  987654321    65432     -  123456789     -`;
+
+describe("darwin network parsing", () => {
+  it("parses interface addresses and up/down state from ifconfig", () => {
+    const map = parseDarwinIfconfig(DARWIN_IFCONFIG);
+    expect(map.has("lo0")).toBe(false);
+    expect(map.get("en0")).toEqual({ ip: "192.168.1.5", state: "UP" });
+    expect(map.get("en1")).toEqual({ ip: "", state: "DOWN" });
+  });
+
+  it("parses byte counters from the Link-layer netstat -ib row", () => {
+    const counters = parseDarwinNetstat(DARWIN_NETSTAT);
+    expect(counters.has("lo0")).toBe(false);
+    expect(counters.get("en0")).toEqual({
+      rx: "987654321",
+      tx: "123456789",
+    });
+  });
+});
+
+describe("parseWindowsAdapterJson", () => {
+  it("handles ConvertTo-Json collapsing a single result to an object", () => {
+    const rows = parseWindowsAdapterJson(
+      '{"name":"Ethernet","ip":"10.0.0.5","state":"UP","rx":1000,"tx":2000}',
+    );
+    expect(rows).toEqual([
+      { name: "Ethernet", ip: "10.0.0.5", state: "UP", rx: "1000", tx: "2000" },
+    ]);
+  });
+
+  it("parses an array of adapters", () => {
+    const rows = parseWindowsAdapterJson(
+      '[{"name":"Ethernet","ip":"10.0.0.5","state":"UP","rx":1000,"tx":2000},' +
+        '{"name":"Wi-Fi","ip":null,"state":"UP","rx":500,"tx":700}]',
+    );
+    expect(rows).toHaveLength(2);
+    expect(rows[1]).toEqual({
+      name: "Wi-Fi",
+      ip: "",
+      state: "UP",
+      rx: "500",
+      tx: "700",
+    });
+  });
+
+  it("returns an empty array for blank or invalid output", () => {
+    expect(parseWindowsAdapterJson("")).toEqual([]);
+    expect(parseWindowsAdapterJson("not json")).toEqual([]);
+  });
+});