wip: next round of implementation, this time tests

tests/engine/agentic/observability/protocolTelemetry.test.ts

@@ -1,7 +1,20 @@
 import { describe, expect, it } from 'vitest';
-import { ProtocolTelemetryService } from '../../../../src/main/agentic/observability/protocolTelemetry';
+import {
+  ProtocolTelemetryService,
+  getProtocolTelemetryService,
+} from '../../../../src/main/agentic/observability/protocolTelemetry';
 
 describe('ProtocolTelemetryService', () => {
+  it('returns zero rates before any turns are recorded', () => {
+    const telemetry = new ProtocolTelemetryService();
+    const snapshot = telemetry.getSnapshot();
+
+    expect(snapshot.totalTurns).toBe(0);
+    expect(snapshot.parseValidityRate).toBe(0);
+    expect(snapshot.repairRate).toBe(0);
+    expect(snapshot.fallbackRate).toBe(0);
+  });
+
   it('tracks parse validity, repairs, fallback, and blocked actions', () => {
     const telemetry = new ProtocolTelemetryService();
 
@@ -35,4 +48,11 @@ describe('ProtocolTelemetryService', () => {
     expect(snapshot.blockedActionCount).toBe(3);
     expect(snapshot.parseValidityRate).toBeCloseTo(2 / 3, 5);
   });
+
+  it('returns the same singleton telemetry service instance', () => {
+    const first = getProtocolTelemetryService();
+    const second = getProtocolTelemetryService();
+
+    expect(first).toBe(second);
+  });
 });

tests/engine/agentic/protocol/responseBuilder.test.ts

@@ -114,4 +114,61 @@ describe('ProtocolResponseBuilder', () => {
     expect(result.envelope.actions).toHaveLength(0);
     expect(result.warnings.some((warning) => warning.includes('openSettings'))).toBe(true);
   });
+
+  it('extracts declarative actions from UI elements and applies policy defaults', () => {
+    const builder = new ProtocolResponseBuilder();
+
+    const raw = JSON.stringify({
+      protocolVersion: '2.0',
+      assistantText: 'Choose an option',
+      intent: 'propose_action',
+      needsInput: { required: false, fields: [] },
+      actions: [],
+      ui: {
+        specVersion: '1',
+        elements: [
+          {
+            type: 'card',
+            title: 'Actions',
+            body: 'Pick one',
+            actions: [{ label: 'Delete', action: 'deletePost' }],
+          },
+          {
+            type: 'tabs',
+            tabs: [
+              {
+                id: 'first',
+                label: 'First',
+                elements: [{ type: 'action', label: 'Open post', action: 'openPost' }],
+              },
+            ],
+          },
+        ],
+      },
+      confidence: 0.7,
+      traceId: 'trace-ui-actions',
+    });
+
+    const result = builder.build({
+      rawAssistantOutput: raw,
+      surface: 'tab',
+      capabilities: {
+        widgets: ['card', 'tabs', 'action'],
+        actions: ['deletePost', 'openPost'],
+        tools: ['search_posts'],
+      },
+    });
+
+    expect(result.envelope.actions).toHaveLength(2);
+    expect(result.envelope.actions[0]).toEqual(expect.objectContaining({
+      action: 'deletePost',
+      policy: 'danger',
+      requiresConfirmation: true,
+    }));
+    expect(result.envelope.actions[1]).toEqual(expect.objectContaining({
+      action: 'openPost',
+      policy: 'silent',
+      requiresConfirmation: false,
+    }));
+  });
 });

tests/engine/agentic/protocol/uiSpecParser.test.ts

@@ -0,0 +1,93 @@
+import { describe, expect, it } from 'vitest';
+import { extractAssistantUiSpec } from '../../../../src/main/agentic/protocol/uiSpecParser';
+
+describe('extractAssistantUiSpec', () => {
+  it('extracts fenced JSON spec and preserves assistant text around it', () => {
+    const input = [
+      'Here is your dashboard.',
+      '```json',
+      '{"specVersion":"1","elements":[{"type":"text","text":"Hello"}]}',
+      '```',
+      'Anything else?',
+    ].join('\n');
+
+    const result = extractAssistantUiSpec(input);
+
+    expect(result.ui).not.toBeNull();
+    expect(result.ui?.specVersion).toBe('1');
+    expect(result.ui?.elements).toHaveLength(1);
+    expect(result.assistantText).toContain('Here is your dashboard.');
+    expect(result.assistantText).toContain('Anything else?');
+  });
+
+  it('normalizes markdown element into canonical text element', () => {
+    const input = JSON.stringify({
+      specVersion: '1',
+      elements: [{ type: 'markdown', content: '## Title' }],
+    });
+
+    const result = extractAssistantUiSpec(input);
+    const first = result.ui?.elements[0] as { type: string; text?: string };
+
+    expect(result.ui).not.toBeNull();
+    expect(first.type).toBe('text');
+    expect(first.text).toBe('## Title');
+  });
+
+  it('normalizes chart data datasets into chart series', () => {
+    const input = JSON.stringify({
+      specVersion: '1',
+      elements: [
+        {
+          type: 'chart',
+          chartType: 'bar',
+          data: {
+            labels: ['Jan', 'Feb'],
+            datasets: [{ data: [10, 20] }],
+          },
+        },
+      ],
+    });
+
+    const result = extractAssistantUiSpec(input);
+    const first = result.ui?.elements[0] as { series?: Array<{ label: string; value: number }>; data?: unknown };
+
+    expect(result.ui).not.toBeNull();
+    expect(first.series).toEqual([
+      { label: 'Jan', value: 10 },
+      { label: 'Feb', value: 20 },
+    ]);
+    expect(first.data).toBeUndefined();
+  });
+
+  it('normalizes tabs content to nested elements arrays', () => {
+    const input = JSON.stringify({
+      type: 'tabs',
+      tabs: [
+        {
+          title: 'Overview',
+          content: { type: 'text', text: 'Summary' },
+        },
+      ],
+    });
+
+    const result = extractAssistantUiSpec(input);
+    const tabs = result.ui?.elements[0] as {
+      tabs: Array<{ id: string; label: string; elements: Array<{ type: string; text?: string }> }>;
+    };
+
+    expect(result.ui).not.toBeNull();
+    expect(tabs.tabs).toHaveLength(1);
+    expect(tabs.tabs[0].id).toBe('tab-1');
+    expect(tabs.tabs[0].label).toBe('Overview');
+    expect(tabs.tabs[0].elements[0]).toEqual({ type: 'text', text: 'Summary' });
+  });
+
+  it('returns plain assistant text when malformed JSON is provided', () => {
+    const input = '{"specVersion":"1","elements":[{"type":"text"}';
+    const result = extractAssistantUiSpec(input);
+
+    expect(result.ui).toBeNull();
+    expect(result.assistantText).toBe(input);
+  });
+});

tests/engine/agentic/protocol/validator.test.ts

@@ -71,4 +71,23 @@ describe('agentic protocol validator', () => {
 
     expect(result.ok).toBe(true);
   });
+
+  it('rejects invalid request envelope and returns structured protocol error', () => {
+    const result = validateProtocolRequestEnvelope({
+      protocolVersion: '2.0',
+      surface: 'tab',
+      messages: [{ role: 'invalid-role', content: 'Create a chart' }],
+      context: { projectId: 'project-1' },
+      capabilities: {
+        widgets: ['chart'],
+        actions: ['openPost'],
+        tools: ['search_posts'],
+      },
+      unknown: true,
+    });
+
+    expect(result.ok).toBe(false);
+    expect(result.error?.code).toBe('AGUI_PROTOCOL_VALIDATION_ERROR');
+    expect(result.error?.details?.length).toBeGreaterThan(0);
+  });
 });

tests/engine/agentic/workflow/checkpointStore.test.ts

@@ -36,4 +36,42 @@ describe('WorkflowCheckpointStore', () => {
     expect(loaded?.pendingFields).toEqual(['date']);
     expect(loaded?.lastTraceId).toBe('trace-1');
   });
+
+  it('returns null when no checkpoint exists', async () => {
+    const adapter = new InMemorySettingsAdapter();
+    const store = new WorkflowCheckpointStore(adapter);
+
+    const loaded = await store.load('missing-conversation');
+
+    expect(loaded).toBeNull();
+  });
+
+  it('returns null for malformed checkpoint JSON', async () => {
+    const adapter = new InMemorySettingsAdapter();
+    await adapter.setSetting('agui.workflow.conversation-2', '{not-valid-json');
+    const store = new WorkflowCheckpointStore(adapter);
+
+    const loaded = await store.load('conversation-2');
+
+    expect(loaded).toBeNull();
+  });
+
+  it('returns null when stored checkpoint conversation id does not match', async () => {
+    const adapter = new InMemorySettingsAdapter();
+    await adapter.setSetting(
+      'agui.workflow.conversation-3',
+      JSON.stringify({
+        conversationId: 'other-conversation',
+        state: 'planning',
+        pendingFields: [],
+        lastTraceId: 'trace-mismatch',
+        updatedAt: new Date('2026-02-25T10:00:00.000Z').toISOString(),
+      }),
+    );
+
+    const store = new WorkflowCheckpointStore(adapter);
+    const loaded = await store.load('conversation-3');
+
+    expect(loaded).toBeNull();
+  });
 });

tests/engine/agentic/workflow/stateMachine.test.ts

@@ -35,4 +35,72 @@ describe('AgentTurnStateMachine', () => {
 
     expect(next).toBe('completed');
   });
+
+  it('transitions to executing when intent requests action execution', () => {
+    const stateMachine = new AgentTurnStateMachine();
+
+    const next = stateMachine.transition({
+      previousState: 'planning',
+      envelope: {
+        intent: 'execute_action',
+        needsInput: {
+          required: false,
+          fields: [],
+        },
+      },
+    });
+
+    expect(next).toBe('executing');
+  });
+
+  it('transitions to observing when proposing actions', () => {
+    const stateMachine = new AgentTurnStateMachine();
+
+    const next = stateMachine.transition({
+      previousState: 'planning',
+      envelope: {
+        intent: 'propose_action',
+        needsInput: {
+          required: false,
+          fields: [],
+        },
+      },
+    });
+
+    expect(next).toBe('observing');
+  });
+
+  it('returns to executing after awaiting input when input is no longer required', () => {
+    const stateMachine = new AgentTurnStateMachine();
+
+    const next = stateMachine.transition({
+      previousState: 'awaiting_input',
+      envelope: {
+        intent: 'analyze',
+        needsInput: {
+          required: false,
+          fields: [],
+        },
+      },
+    });
+
+    expect(next).toBe('executing');
+  });
+
+  it('stays in planning for non-terminal analyze intent by default', () => {
+    const stateMachine = new AgentTurnStateMachine();
+
+    const next = stateMachine.transition({
+      previousState: 'planning',
+      envelope: {
+        intent: 'analyze',
+        needsInput: {
+          required: false,
+          fields: [],
+        },
+      },
+    });
+
+    expect(next).toBe('planning');
+  });
 });