test: cover runtime regression scenarios

tauri/package-lock.json

@@ -15,7 +15,8 @@
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@@ -1111,6 +1119,24 @@
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@@ -1125,6 +1151,196 @@
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@@ -1134,6 +1350,13 @@
         "@types/trusted-types": "^2.0.7"
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@@ -1176,6 +1399,26 @@
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       }
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+      "dev": true,
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+      "license": "Apache-2.0",
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@@ -1209,6 +1452,30 @@
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+      "license": "MIT"
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@@ -1221,6 +1488,13 @@
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@@ -1240,6 +1514,23 @@
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@@ -1335,6 +1626,13 @@
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@@ -1345,6 +1643,47 @@
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+    },
+    "node_modules/vite-node": {
+      "version": "3.2.4",
+      "resolved": "https://registry.npmjs.org/vite-node/-/vite-node-3.2.4.tgz",
+      "integrity": "sha512-EbKSKh+bh1E1IFxeO0pg1n4dvoOTt0UDiXMd/qn++r98+jPO1xtJilvXldeuQ8giIB5IkpjCgMleHMNEsGH6pg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "cac": "^6.7.14",
+        "debug": "^4.4.1",
+        "es-module-lexer": "^1.7.0",
+        "pathe": "^2.0.3",
+        "vite": "^5.0.0 || ^6.0.0 || ^7.0.0-0"
+      },
+      "bin": {
+        "vite-node": "vite-node.mjs"
+      },
+      "engines": {
+        "node": "^18.0.0 || ^20.0.0 || >=22.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      }
+    },
+    "node_modules/vitest": {
+      "version": "3.2.7",
+      "resolved": "https://registry.npmjs.org/vitest/-/vitest-3.2.7.tgz",
+      "integrity": "sha512-KrxIJ62Fd89gfysR4WotlgZABiz2dqFPgqGzX7s+CwsqLFomRH7777ZcrOD6+WVAh7khPQP41A+BKbpcJFrdEg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/chai": "^5.2.2",
+        "@vitest/expect": "3.2.7",
+        "@vitest/mocker": "3.2.7",
+        "@vitest/pretty-format": "^3.2.7",
+        "@vitest/runner": "3.2.7",
+        "@vitest/snapshot": "3.2.7",
+        "@vitest/spy": "3.2.7",
+        "@vitest/utils": "3.2.7",
+        "chai": "^5.2.0",
+        "debug": "^4.4.1",
+        "expect-type": "^1.2.1",
+        "magic-string": "^0.30.17",
+        "pathe": "^2.0.3",
+        "picomatch": "^4.0.2",
+        "std-env": "^3.9.0",
+        "tinybench": "^2.9.0",
+        "tinyexec": "^0.3.2",
+        "tinyglobby": "^0.2.14",
+        "tinypool": "^1.1.1",
+        "tinyrainbow": "^2.0.0",
+        "vite": "^5.0.0 || ^6.0.0 || ^7.0.0-0",
+        "vite-node": "3.2.4",
+        "why-is-node-running": "^2.3.0"
+      },
+      "bin": {
+        "vitest": "vitest.mjs"
+      },
+      "engines": {
+        "node": "^18.0.0 || ^20.0.0 || >=22.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      },
+      "peerDependencies": {
+        "@edge-runtime/vm": "*",
+        "@types/debug": "^4.1.12",
+        "@types/node": "^18.0.0 || ^20.0.0 || >=22.0.0",
+        "@vitest/browser": "3.2.7",
+        "@vitest/ui": "3.2.7",
+        "happy-dom": "*",
+        "jsdom": "*"
+      },
+      "peerDependenciesMeta": {
+        "@edge-runtime/vm": {
+          "optional": true
+        },
+        "@types/debug": {
+          "optional": true
+        },
+        "@types/node": {
+          "optional": true
+        },
+        "@vitest/browser": {
+          "optional": true
+        },
+        "@vitest/ui": {
+          "optional": true
+        },
+        "happy-dom": {
+          "optional": true
+        },
+        "jsdom": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/why-is-node-running": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/why-is-node-running/-/why-is-node-running-2.3.0.tgz",
+      "integrity": "sha512-hUrmaWBdVDcxvYqnyh09zunKzROWjbZTiNy8dBEjkS7ehEDQibXJ7XvlmtbwuTclUiIyN+CyXQD4Vmko8fNm8w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "siginfo": "^2.0.0",
+        "stackback": "0.0.2"
+      },
+      "bin": {
+        "why-is-node-running": "cli.js"
+      },
+      "engines": {
+        "node": ">=8"
+      }
     }
   }
 }

tauri/package.json

@@ -6,6 +6,7 @@
   "scripts": {
     "dev": "vite --host 0.0.0.0 --port 1420",
     "web:dev": "npm run dev",
+    "test": "vitest run",
     "desktop:dev": "./scripts/tauri.sh dev",
     "build": "tsc --noEmit && vite build",
     "preview": "vite preview --host 127.0.0.1",
@@ -20,6 +21,7 @@
   "devDependencies": {
     "@tauri-apps/cli": "^2.0.0",
     "typescript": "^5.7.3",
-    "vite": "^6.1.0"
+    "vite": "^6.1.0",
+    "vitest": "^3.2.7"
   }
 }

tauri/src/runtime/conversation-store.test.ts

@@ -0,0 +1,73 @@
+import { describe, expect, it } from "vitest";
+import { ConversationStore } from "./conversation-store";
+
+class MemoryStorage implements Storage {
+  private readonly values = new Map<string, string>();
+
+  public get length(): number { return this.values.size; }
+  public clear(): void { this.values.clear(); }
+  public getItem(key: string): string | null { return this.values.get(key) ?? null; }
+  public key(index: number): string | null { return [...this.values.keys()][index] ?? null; }
+  public removeItem(key: string): void { this.values.delete(key); }
+  public setItem(key: string, value: string): void { this.values.set(key, value); }
+}
+
+const conversationID = "user_test:2:agent_channel";
+const createdAt = "2026-08-03T00:00:00.000Z";
+
+describe("ConversationStore", () => {
+  it("keeps the inclusive sync cursor at zero after a send acknowledgement", () => {
+    const store = new ConversationStore(new MemoryStorage());
+    store.open(conversationID);
+    store.appendLocalText("local_001", "hello", createdAt);
+    store.markSubmitted("local_001", 41, createdAt);
+
+    expect(store.snapshot()).toMatchObject({ cursor: 0, outbox: [] });
+    expect(store.snapshot().items).toEqual([expect.objectContaining({
+      local_id: "local_001",
+      message_seq: 41,
+      item: expect.objectContaining({ kind: "user-message", delivery: expect.objectContaining({ status: "submitted" }) }),
+    })]);
+  });
+
+  it("deduplicates the inclusive sync echo of a locally submitted user message", () => {
+    const store = new ConversationStore(new MemoryStorage());
+    store.open(conversationID);
+    store.appendLocalText("local_001", "hello", createdAt);
+    store.markSubmitted("local_001", 41, createdAt);
+
+    const restored = store.recordSyncedUserText(41, "hello", createdAt);
+
+    expect(restored).toBeUndefined();
+    expect(store.snapshot()).toMatchObject({ cursor: 41 });
+    expect(store.snapshot().items).toHaveLength(1);
+  });
+
+  it("persists a local echo and restores it for the same conversation", () => {
+    const storage = new MemoryStorage();
+    const first = new ConversationStore(storage);
+    first.open(conversationID);
+    first.appendLocalText("local_002", "persist me", createdAt);
+
+    const reopened = new ConversationStore(storage);
+    const snapshot = reopened.open(conversationID);
+
+    expect(snapshot.cursor).toBe(0);
+    expect(snapshot.outbox).toEqual([expect.objectContaining({ local_id: "local_002", payload: "persist me" })]);
+    expect(snapshot.items).toEqual([expect.objectContaining({
+      local_id: "local_002",
+      item: expect.objectContaining({ kind: "user-message", text: "persist me" }),
+    })]);
+  });
+
+  it("accepts one remote message per IM sequence and advances the cursor only from sync data", () => {
+    const store = new ConversationStore(new MemoryStorage());
+    store.open(conversationID);
+    const item = { kind: "markdown" as const, id: "evt_remote_001", markdown: "remote" };
+
+    expect(store.recordIncoming(item, 42, createdAt)).toBe(true);
+    expect(store.recordIncoming(item, 42, createdAt)).toBe(false);
+    expect(store.snapshot()).toMatchObject({ cursor: 42 });
+    expect(store.snapshot().items).toHaveLength(1);
+  });
+});

tauri/src/runtime/interaction-kernel.test.ts

@@ -0,0 +1,74 @@
+import { describe, expect, it } from "vitest";
+import { parseEnvelopeJSON } from "../protocol";
+import { InteractionKernel } from "./interaction-kernel";
+
+function envelope(overrides: Record<string, unknown> = {}): string {
+  return JSON.stringify({
+    v: 1,
+    id: "evt_kernel_001",
+    type: "lineup.v1.text",
+    conversation_id: "conversation_kernel_test",
+    sender: { kind: "agent", id: "agent_test" },
+    payload: { markdown: "# Hello\n\n**trusted**" },
+    ...overrides,
+  });
+}
+
+describe("InteractionKernel", () => {
+  it("accepts a valid typed envelope and projects its trusted markdown item", () => {
+    const kernel = new InteractionKernel();
+    const result = kernel.ingest({ raw: envelope(), source: "sync", transport_id: "41" });
+
+    expect(result.disposition).toBe("accepted");
+    expect(result.items).toEqual([expect.objectContaining({
+      kind: "markdown",
+      id: "evt_kernel_001",
+      markdown: "# Hello\n\n**trusted**",
+    })]);
+    expect(result.snapshot.seen_envelope_ids).toBe(1);
+  });
+
+  it("rejects invalid protocol JSON while preserving legacy plain text as safe markdown", () => {
+    const kernel = new InteractionKernel();
+    const invalidProtocol = parseEnvelopeJSON("{");
+    const legacyText = kernel.ingest({ raw: "{", source: "sync" });
+    const unknown = kernel.ingest({
+      raw: envelope({ id: "evt_kernel_unknown", type: "lineup.v1.unknown" }),
+      source: "live",
+    });
+
+    expect(invalidProtocol).toMatchObject({ ok: false, fallback: { code: "invalid_json" } });
+    expect(legacyText.items).toEqual([expect.objectContaining({ kind: "markdown", markdown: "{" })]);
+    expect(unknown.items).toEqual([expect.objectContaining({ kind: "fallback", reason: "unsupported_type", id: "evt_kernel_unknown" })]);
+  });
+
+  it("deduplicates one envelope id across sync and live transport sources", () => {
+    const kernel = new InteractionKernel();
+    const first = kernel.ingest({ raw: envelope(), source: "sync" });
+    const duplicate = kernel.ingest({ raw: envelope(), source: "live" });
+
+    expect(first.disposition).toBe("accepted");
+    expect(duplicate).toMatchObject({ disposition: "duplicate", items: [] });
+    expect(duplicate.snapshot.seen_envelope_ids).toBe(1);
+  });
+
+  it("projects the latest agent status by actor and retains a bounded dedupe set", () => {
+    const kernel = new InteractionKernel(2);
+    const thinking = kernel.ingest({
+      raw: envelope({ id: "evt_status_thinking", type: "lineup.v1.agent.status", payload: { status: "thinking", detail: "planning" } }),
+      source: "sync",
+      received_at: "2026-08-03T00:00:00.000Z",
+    });
+    kernel.ingest({ raw: envelope({ id: "evt_other", payload: { markdown: "one" } }), source: "sync" });
+    kernel.ingest({ raw: envelope({ id: "evt_newer", payload: { markdown: "two" } }), source: "sync" });
+
+    expect(thinking.snapshot.agent_presence).toEqual([expect.objectContaining({
+      status: "thinking",
+      detail: "planning",
+      envelope_id: "evt_status_thinking",
+      updated_at: "2026-08-03T00:00:00.000Z",
+    })]);
+    // The first id has expired from the bounded set and is accepted again.
+    expect(kernel.ingest({ raw: envelope({ id: "evt_status_thinking" }), source: "live" }).disposition).toBe("accepted");
+  });
+});