test(macos): boost Clawdis coverage to 40%

apps/macos/Tests/ClawdisIPCTests/CanvasWindowSmokeTests.swift

@@ -0,0 +1,48 @@
+import AppKit
+import ClawdisIPC
+import Foundation
+import Testing
+@testable import Clawdis
+
+@Suite(.serialized)
+@MainActor
+struct CanvasWindowSmokeTests {
+    @Test func panelControllerShowsAndHides() async throws {
+        let root = FileManager.default.temporaryDirectory.appendingPathComponent("clawdis-canvas-test-\(UUID().uuidString)")
+        try FileManager.default.createDirectory(at: root, withIntermediateDirectories: true)
+        defer { try? FileManager.default.removeItem(at: root) }
+
+        let anchor = { NSRect(x: 200, y: 400, width: 40, height: 40) }
+        let controller = try CanvasWindowController(
+            sessionKey: "  main/invalid⚡️  ",
+            root: root,
+            presentation: .panel(anchorProvider: anchor))
+
+        #expect(controller.directoryPath.contains("main_invalid__") == true)
+
+        controller.applyPreferredPlacement(CanvasPlacement(x: 120, y: 200, width: 520, height: 680))
+        controller.showCanvas(path: "/")
+        _ = await controller.eval(javaScript: "1 + 1")
+        controller.windowDidMove(Notification(name: NSWindow.didMoveNotification))
+        controller.windowDidEndLiveResize(Notification(name: NSWindow.didEndLiveResizeNotification))
+        controller.hideCanvas()
+        controller.close()
+    }
+
+    @Test func windowControllerShowsAndCloses() async throws {
+        let root = FileManager.default.temporaryDirectory.appendingPathComponent("clawdis-canvas-test-\(UUID().uuidString)")
+        try FileManager.default.createDirectory(at: root, withIntermediateDirectories: true)
+        defer { try? FileManager.default.removeItem(at: root) }
+
+        let controller = try CanvasWindowController(
+            sessionKey: "main",
+            root: root,
+            presentation: .window)
+
+        controller.showCanvas(path: "/")
+        controller.windowWillClose(Notification(name: NSWindow.willCloseNotification))
+        controller.hideCanvas()
+        controller.close()
+    }
+}
+