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beszel/internal/site/src/lib/monitor-compare.test.ts
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import { expect, test } from "bun:test"
import type { NetworkMonitorRecord } from "@/types"
import {
getMonitorCompareState,
getMonitorIdentityKey,
getMonitorTarget,
MAX_COMPARE_MONITORS,
} from "./monitor-compare"
function mon(id: string, system: string, target: string, extra: Partial<NetworkMonitorRecord> = {}) {
return { id, system, target, protocol: "icmp", port: 0, server: "", interval: 30, ...extra } as NetworkMonitorRecord
}
const systemNames: Record<string, string> = { a: "Alpha", b: "Bravo", c: "Charlie" }
function state(
monitor: NetworkMonitorRecord,
monitors: NetworkMonitorRecord[],
selectedSystemIds: string[] = [],
selectedTargetIds: string[] = []
) {
return getMonitorCompareState({
monitor,
localMonitors: monitors,
otherMonitors: monitors,
selectedSystemIds: new Set(selectedSystemIds),
selectedTargetIds: new Set(selectedTargetIds),
getSystemName: (id) => systemNames[id] ?? id,
})
}
const ids = (monitors: NetworkMonitorRecord[]) => monitors.map((m) => m.id)
// a probes one and two; b probes one and two; c probes only one
const a1 = mon("a1", "a", "one.example")
const a2 = mon("a2", "a", "two.example")
const b1 = mon("b1", "b", "one.example")
const b2 = mon("b2", "b", "two.example")
const c1 = mon("c1", "c", "one.example")
const all = [a1, a2, b1, b2, c1]
test("formats tcp targets with their port", () => {
expect(getMonitorTarget({ target: "example.com", protocol: "icmp", port: 0 })).toBe("example.com")
expect(getMonitorTarget({ target: "example.com", protocol: "tcp", port: 443 })).toBe("example.com:443")
expect(getMonitorTarget({ target: "::1", protocol: "tcp", port: 22 })).toBe("[::1]:22")
})
test("identity ignores the system but not protocol, port or server", () => {
expect(getMonitorIdentityKey(a1)).toBe(getMonitorIdentityKey(b1))
expect(getMonitorIdentityKey(a1)).not.toBe(getMonitorIdentityKey({ ...a1, protocol: "http" }))
expect(getMonitorIdentityKey(a1)).not.toBe(getMonitorIdentityKey({ ...a1, port: 80 }))
expect(getMonitorIdentityKey(a1)).not.toBe(getMonitorIdentityKey({ ...a1, server: "1.1.1.1" }))
})
test("with nothing selected only the opened monitor is charted", () => {
const s = state(a1, all)
expect(s.systemOptions).toEqual(["b", "c"])
expect(ids(s.targetOptions)).toEqual(["a2"])
expect(ids(s.compareMonitors)).toEqual(["a1"])
})
test("only offers targets and systems with the same protocol", () => {
const aHttp = mon("aHttp", "a", "https://two.example", { protocol: "http" })
const bTcp = mon("bTcp", "b", "one.example", { protocol: "tcp", port: 443 })
const s = state(a1, [a1, a2, aHttp, bTcp, c1])
expect(ids(s.targetOptions)).toEqual(["a2"])
expect(s.systemOptions).toEqual(["c"])
})
test("comparing targets charts them on the opened system, labelled by target", () => {
const s = state(a1, all, [], ["a2"])
expect(ids(s.compareMonitors)).toEqual(["a1", "a2"])
expect(s.getLabel(a1)).toBe("one.example")
expect(s.getLabel(a2)).toBe("two.example")
})
test("comparing systems charts the opened target on them, labelled by system", () => {
const s = state(a1, all, ["b", "c"])
expect(ids(s.compareMonitors)).toEqual(["a1", "b1", "c1"])
expect(s.getLabel(a1)).toBe("Alpha")
expect(s.getLabel(c1)).toBe("Charlie")
})
test("each compared target is charted on every selected system", () => {
const s = state(a1, all, ["b"], ["a2"])
expect(ids(s.compareMonitors)).toEqual(["a1", "a2", "b1", "b2"])
expect(s.getLabel(b2)).toBe("Bravo · two.example")
})
test("selecting a system limits targets to ones it also probes", () => {
const s = state(a1, all, ["c"])
expect(ids(s.targetOptions)).toEqual([])
})
test("selecting a target limits systems to ones that also probe it", () => {
const s = state(a1, all, [], ["a2"])
expect(s.systemOptions).toEqual(["b"])
})
test("the pickers can't produce conflicting selections, but targets win if they conflict", () => {
const s = state(a1, all, ["c"], ["a2"])
expect(s.selectedSystemIds.size).toBe(0)
expect([...s.selectedTargetIds]).toEqual(["a2"])
expect(ids(s.compareMonitors)).toEqual(["a1", "a2"])
})
test("selected systems that are no longer options are ignored", () => {
const s = state(a1, all, ["gone"])
expect(s.selectedSystemIds.size).toBe(0)
expect(ids(s.compareMonitors)).toEqual(["a1"])
})
test("DNS lookups of the same name against different servers get the server in their label", () => {
const d1 = mon("d1", "a", "example.com", { protocol: "dns", server: "1.1.1.1" })
const d2 = mon("d2", "a", "example.com", { protocol: "dns", server: "8.8.8.8" })
const s = state(d1, [d1, d2], [], ["d2"])
expect(s.getLabel(d1)).toBe("example.com (1.1.1.1)")
expect(s.getLabel(d2)).toBe("example.com (8.8.8.8)")
})
test("uses separate local and fetched monitor lists on single-system pages", () => {
const s = getMonitorCompareState({
monitor: a1,
localMonitors: [a1, a2],
otherMonitors: [b1, b2],
selectedSystemIds: new Set(["b"]),
selectedTargetIds: new Set(["a2"]),
getSystemName: (id) => systemNames[id],
})
expect(ids(s.compareMonitors)).toEqual(["a1", "a2", "b1", "b2"])
})
test("duplicate labels without a server are left alone", () => {
const b1Dupe = mon("b1Dupe", "b", "one.example")
const s = state(a1, [...all, b1Dupe], ["b"])
expect(ids(s.compareMonitors)).toEqual(["a1", "b1", "b1Dupe"])
expect(s.getLabel(b1)).toBe("Bravo")
expect(s.getLabel(b1Dupe)).toBe("Bravo")
})
// Every system probes every target, so selections multiply into targets × systems lines.
function grid(systemCount: number, targetCount: number) {
const monitors: NetworkMonitorRecord[] = []
for (let s = 0; s < systemCount; s++) {
for (let t = 0; t < targetCount; t++) monitors.push(mon(`s${s}t${t}`, `s${s}`, `t${t}.example`))
}
return monitors
}
test("selecting everything is trimmed to the line limit, keeping targets and earlier picks", () => {
const monitors = grid(30, 5)
const allSystems = Array.from({ length: 29 }, (_, i) => `s${i + 1}`)
const allTargets = ["s0t1", "s0t2", "s0t3", "s0t4"]
const s = state(monitors[0], monitors, allSystems, allTargets)
expect([...s.selectedTargetIds]).toEqual(allTargets)
// 5 targets fit on 4 systems (the opened one plus 3) within the limit
expect([...s.selectedSystemIds]).toEqual(["s1", "s2", "s3"])
expect(s.compareMonitors.length).toBe(20)
expect(s.canAddSystem).toBe(false)
})
test("more can be added only while the next pick fits the line limit", () => {
const monitors = grid(12, 3)
const s = state(monitors[0], monitors, ["s1", "s2", "s3", "s4", "s5", "s6"])
// 1 target × 7 systems; another target makes 14, another system makes 8
expect(s.canAddTarget).toBe(true)
expect(s.canAddSystem).toBe(true)
const full = state(monitors[0], monitors, ["s1", "s2", "s3", "s4", "s5", "s6", "s7"], ["s0t1", "s0t2"])
// 3 targets × 8 systems = 24
expect(full.compareMonitors.length).toBe(MAX_COMPARE_MONITORS)
expect(full.canAddTarget).toBe(false)
expect(full.canAddSystem).toBe(false)
})