first commit

packages/testing/playwright/tests/e2e/ai/langchain-vectorstores.spec.ts

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+import { test, expect } from '../../../fixtures/base';
+import type { n8nPage } from '../../../pages/n8nPage';
+
+// Helper functions for common operations
+async function waitForWorkflowSuccess(n8n: n8nPage, timeout = 10000) {
+	await n8n.notifications.waitForNotificationAndClose('Workflow executed successfully', {
+		timeout,
+	});
+}
+
+test.use({ capability: 'proxy' });
+test.describe('Langchain Integration @capability:proxy', {
+	annotation: [
+		{ type: 'owner', description: 'AI' },
+	],
+}, () => {
+	test.beforeEach(async ({ n8n, services }) => {
+		await services.proxy.clearAllExpectations();
+		await services.proxy.loadExpectations('langchain');
+		await n8n.canvas.openNewWorkflow();
+	});
+
+	test.describe('Advanced Workflow Features', () => {
+		test('should render runItems for sub-nodes and allow switching between them', async ({
+			n8n,
+		}) => {
+			await n8n.start.fromImportedWorkflow('In_memory_vector_store_fake_embeddings.json');
+			await n8n.canvas.clickZoomToFitButton();
+			await n8n.canvas.deselectAll();
+
+			await n8n.canvas.executeNode('Populate VS');
+			await waitForWorkflowSuccess(n8n);
+
+			const assertInputOutputTextExists = async (text: string) => {
+				await expect(n8n.ndv.getOutputPanel()).toContainText(text);
+				await expect(n8n.ndv.getInputPanel()).toContainText(text);
+			};
+
+			const assertInputOutputTextNotExists = async (text: string) => {
+				await expect(n8n.ndv.getOutputPanel()).not.toContainText(text);
+				await expect(n8n.ndv.getInputPanel()).not.toContainText(text);
+			};
+
+			await n8n.canvas.openNode('Character Text Splitter');
+
+			await expect(n8n.ndv.getOutputRunSelector()).toBeVisible();
+			await expect(n8n.ndv.getInputRunSelector()).toBeVisible();
+			await expect(n8n.ndv.getInputRunSelectorInput()).toHaveValue('3 of 3');
+			await expect(n8n.ndv.getOutputRunSelectorInput()).toHaveValue('3 of 3');
+			await assertInputOutputTextExists('Kyiv');
+			await assertInputOutputTextNotExists('Berlin');
+			await assertInputOutputTextNotExists('Prague');
+
+			await n8n.ndv.changeOutputRunSelector('2 of 3');
+			await assertInputOutputTextExists('Berlin');
+			await assertInputOutputTextNotExists('Kyiv');
+			await assertInputOutputTextNotExists('Prague');
+
+			await n8n.ndv.changeOutputRunSelector('1 of 3');
+			await assertInputOutputTextExists('Prague');
+			await assertInputOutputTextNotExists('Berlin');
+			await assertInputOutputTextNotExists('Kyiv');
+
+			await n8n.ndv.toggleInputRunLinking();
+			await n8n.ndv.changeOutputRunSelector('2 of 3');
+			await expect(n8n.ndv.getInputRunSelectorInput()).toHaveValue('1 of 3');
+			await expect(n8n.ndv.getOutputRunSelectorInput()).toHaveValue('2 of 3');
+			await expect(n8n.ndv.getInputPanel()).toContainText('Prague');
+			await expect(n8n.ndv.getInputPanel()).not.toContainText('Berlin');
+
+			await expect(n8n.ndv.getOutputPanel()).toContainText('Berlin');
+			await expect(n8n.ndv.getOutputPanel()).not.toContainText('Prague');
+
+			await n8n.ndv.toggleInputRunLinking();
+			await expect(n8n.ndv.getInputRunSelectorInput()).toHaveValue('1 of 3');
+			await expect(n8n.ndv.getOutputRunSelectorInput()).toHaveValue('1 of 3');
+			await assertInputOutputTextExists('Prague');
+			await assertInputOutputTextNotExists('Berlin');
+			await assertInputOutputTextNotExists('Kyiv');
+		});
+
+		test('should execute up to Node 1 when using partial execution', async ({ n8n }) => {
+			await n8n.start.fromImportedWorkflow('Test_workflow_chat_partial_execution.json');
+			await n8n.canvas.clickZoomToFitButton();
+
+			// Check that chat modal is not initially visible
+			await expect(n8n.canvas.getManualChatModal().getByTestId('canvas-chat-body')).toBeHidden();
+
+			// Open Node 1 and execute it
+			await n8n.canvas.openNode('Node 1');
+			await n8n.ndv.execute();
+			// Chat modal should now be visible
+			await expect(n8n.canvas.getManualChatModal().getByTestId('canvas-chat-body')).toBeVisible();
+
+			// Send first message
+			await n8n.canvas.logsPanel.sendManualChatMessage('Test');
+			await expect(n8n.canvas.getManualChatLatestBotMessage()).toContainText('this_my_field_1');
+
+			// Refresh session
+			await n8n.canvas.logsPanel.refreshSession();
+			await expect(n8n.canvas.logsPanel.getManualChatMessages()).not.toBeAttached();
+
+			// Send another message
+			await n8n.canvas.logsPanel.sendManualChatMessage('Another test');
+			await expect(n8n.canvas.getManualChatLatestBotMessage()).toContainText('this_my_field_3');
+			await expect(n8n.canvas.getManualChatLatestBotMessage()).toContainText('this_my_field_4');
+		});
+	});
+});