A2UI: share bundle via ClawdisKit

apps/shared/ClawdisKit/Tests/ClawdisKitTests/CanvasA2UITests.swift

@@ -0,0 +1,43 @@
+import ClawdisKit
+import Testing
+
+@Suite struct CanvasA2UITests {
+    @Test func commandStringsAreStable() {
+        #expect(ClawdisCanvasA2UICommand.push.rawValue == "canvas.a2ui.push")
+        #expect(ClawdisCanvasA2UICommand.pushJSONL.rawValue == "canvas.a2ui.pushJSONL")
+        #expect(ClawdisCanvasA2UICommand.reset.rawValue == "canvas.a2ui.reset")
+    }
+
+    @Test func jsonlDecodesAndValidatesV0_8() throws {
+        let jsonl = """
+        {"beginRendering":{"surfaceId":"main","timestamp":1}}
+        {"surfaceUpdate":{"surfaceId":"main","ops":[]}}
+        {"dataModelUpdate":{"dataModel":{"title":"Hello"}}}
+        {"deleteSurface":{"surfaceId":"main"}}
+        """
+
+        let messages = try ClawdisCanvasA2UIJSONL.decodeMessagesFromJSONL(jsonl)
+        #expect(messages.count == 4)
+    }
+
+    @Test func jsonlRejectsV0_9CreateSurface() {
+        let jsonl = """
+        {"createSurface":{"surfaceId":"main"}}
+        """
+
+        #expect(throws: Error.self) {
+            _ = try ClawdisCanvasA2UIJSONL.decodeMessagesFromJSONL(jsonl)
+        }
+    }
+
+    @Test func jsonlRejectsUnknownShape() {
+        let jsonl = """
+        {"wat":{"nope":1}}
+        """
+
+        #expect(throws: Error.self) {
+            _ = try ClawdisCanvasA2UIJSONL.decodeMessagesFromJSONL(jsonl)
+        }
+    }
+}
+