timban
c08fc277a9
A native macOS network monitor that renders live traffic as a top-down neon city: your Mac is downtown, remote orgs are glowing districts, and traffic is cars of light driving the roads. Architecture: - NetworkCityCore: swappable data layer behind a ConnectionSource protocol (nettop-backed today), plus pure/tested logic — traffic diffing, org classification (reverse-DNS + CIDR), traffic classes, hub-and-spoke expansion policy, label anti-overlap, and latency→distance layout. - NetworkCityApp: SwiftUI + SpriteKit city — auto-expanding districts, protocol-coloured cars, click-to-inspect panel, and latency-as-distance (districts glide to their measured RTT). - nettop-probe: CLI proof of the data layer. 44 tests passing. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
46 lines
1.8 KiB
Swift
46 lines
1.8 KiB
Swift
import XCTest
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import CoreGraphics
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@testable import NetworkCityCore
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final class LayoutSolverTests: XCTestCase {
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// A label box centered under the node: ~160 wide, sitting below the dot.
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private let label = CGRect(x: -80, y: -34, width: 160, height: 30)
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private func worldBox(at c: CGPoint) -> CGRect { label.offsetBy(dx: c.x, dy: c.y) }
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func testEmptyMapReturnsSeed() {
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let p = LayoutSolver.placeNonOverlapping(baseAngle: 0, baseRadius: 200, localRect: label, existing: [])
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XCTAssertEqual(p.x, 200, accuracy: 0.001) // attempt 0 == seed
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XCTAssertEqual(p.y, 0, accuracy: 0.001)
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}
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func testAvoidsOverlapWithExisting() {
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// Pre-place a box exactly where the seed would land.
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let seed = CGPoint(x: cos(0.0) * 200, y: sin(0.0) * 200)
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let existing = [worldBox(at: seed).insetBy(dx: -16, dy: -16)]
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let p = LayoutSolver.placeNonOverlapping(baseAngle: 0, baseRadius: 200, localRect: label, existing: existing)
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XCTAssertNotEqual(p, seed) // had to move
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// The chosen spot's padded box must clear the existing one.
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let placed = worldBox(at: p).insetBy(dx: -16, dy: -16)
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XCTAssertFalse(placed.intersects(existing[0]))
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}
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func testResultClearsAllOfManyNeighbours() {
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// Seed eight districts and confirm none of their boxes overlap.
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var placed: [CGRect] = []
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for i in 0..<8 {
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let angle = Double(i) / 8 * 2 * .pi
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let c = LayoutSolver.placeNonOverlapping(baseAngle: angle, baseRadius: 180, localRect: label, existing: placed)
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placed.append(worldBox(at: c))
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}
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for a in 0..<placed.count {
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for b in (a + 1)..<placed.count {
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XCTAssertFalse(placed[a].intersects(placed[b]), "districts \(a) and \(b) overlap")
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}
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}
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}
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}
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