fix(editor): Fix bug with node names with certain characters (#8013)

## Summary
Fixes the issue that dots and other special characters can not be used
in node-names


## Related tickets and issues

https://linear.app/n8n/issue/ADO-1244/nodes-wont-output-data-if-the-name-contains-some-characters

https://community.n8n.io/t/bug-report-name-of-node-affects-output-data/31674
https://community.n8n.io/t/stripe-output-data/32418/1
https://community.n8n.io/t/monday-com-returning-items-but-no-data/31834
https://community.n8n.io/t/no-data-while-there-is-actually-data/32563
https://community.n8n.io/t/bug-report-periods-in-node-names/34119
#7896


## Review / Merge checklist
- [ ] PR title and summary are descriptive. **Remember, the title
automatically goes into the changelog. Use `(no-changelog)` otherwise.**
([conventions](https://github.com/n8n-io/n8n/blob/master/.github/pull_request_title_conventions.md))
- [ ] [Docs updated](https://github.com/n8n-io/n8n-docs) or follow-up
ticket created.
- [ ] Tests included.
> A bug is not considered fixed, unless a test is added to prevent it
from happening again.
   > A feature is not complete without tests.

---------

Co-authored-by: Alex Grozav <alex@grozav.com>

packages/editor-ui/src/composables/__tests__/useNodeHelpers.test.ts

@@ -0,0 +1,182 @@
+import { setActivePinia } from 'pinia';
+import { createTestingPinia } from '@pinia/testing';
+import { useNodeHelpers } from '@/composables/useNodeHelpers';
+import { createTestNode } from '@/__tests__/mocks';
+import { useWorkflowsStore } from '@/stores/workflows.store';
+
+vi.mock('@/stores/workflows.store', () => ({
+	useWorkflowsStore: vi.fn(),
+}));
+
+describe('useNodeHelpers()', () => {
+	beforeAll(() => {
+		setActivePinia(createTestingPinia());
+	});
+
+	afterEach(() => {
+		vi.clearAllMocks();
+	});
+
+	describe('getNodeInputData()', () => {
+		it('should return an empty array when node is null', () => {
+			const { getNodeInputData } = useNodeHelpers();
+
+			const result = getNodeInputData(null);
+			expect(result).toEqual([]);
+		});
+
+		it('should return an empty array when workflowsStore.getWorkflowExecution() is null', () => {
+			vi.mocked(useWorkflowsStore).mockReturnValue({
+				getWorkflowExecution: null,
+			} as ReturnType<typeof useWorkflowsStore>);
+			const { getNodeInputData } = useNodeHelpers();
+			const node = createTestNode({
+				name: 'test',
+				type: 'test',
+			});
+
+			const result = getNodeInputData(node);
+			expect(result).toEqual([]);
+		});
+
+		it('should return an empty array when workflowsStore.getWorkflowExecution() is null', () => {
+			vi.mocked(useWorkflowsStore).mockReturnValue({
+				getWorkflowExecution: null,
+			} as ReturnType<typeof useWorkflowsStore>);
+			const { getNodeInputData } = useNodeHelpers();
+			const node = createTestNode({
+				name: 'test',
+				type: 'test',
+			});
+
+			const result = getNodeInputData(node);
+			expect(result).toEqual([]);
+		});
+
+		it('should return an empty array when resultData is not available', () => {
+			vi.mocked(useWorkflowsStore).mockReturnValue({
+				getWorkflowExecution: {
+					data: {
+						resultData: null,
+					},
+				},
+			} as unknown as ReturnType<typeof useWorkflowsStore>);
+			const { getNodeInputData } = useNodeHelpers();
+			const node = createTestNode({
+				name: 'test',
+				type: 'test',
+			});
+
+			const result = getNodeInputData(node);
+			expect(result).toEqual([]);
+		});
+
+		it('should return an empty array when taskData is unavailable', () => {
+			const nodeName = 'Code';
+			vi.mocked(useWorkflowsStore).mockReturnValue({
+				getWorkflowExecution: {
+					data: {
+						resultData: {
+							runData: {
+								[nodeName]: [],
+							},
+						},
+					},
+				},
+			} as unknown as ReturnType<typeof useWorkflowsStore>);
+			const { getNodeInputData } = useNodeHelpers();
+			const node = createTestNode({
+				name: nodeName,
+				type: 'test',
+			});
+
+			const result = getNodeInputData(node);
+			expect(result).toEqual([]);
+		});
+
+		it('should return an empty array when taskData.data is unavailable', () => {
+			const nodeName = 'Code';
+			vi.mocked(useWorkflowsStore).mockReturnValue({
+				getWorkflowExecution: {
+					data: {
+						resultData: {
+							runData: {
+								[nodeName]: [{ data: undefined }],
+							},
+						},
+					},
+				},
+			} as unknown as ReturnType<typeof useWorkflowsStore>);
+			const { getNodeInputData } = useNodeHelpers();
+			const node = createTestNode({
+				name: nodeName,
+				type: 'test',
+			});
+
+			const result = getNodeInputData(node);
+			expect(result).toEqual([]);
+		});
+
+		it('should return input data from inputOverride', () => {
+			const nodeName = 'Code';
+			const data = { hello: 'world' };
+			vi.mocked(useWorkflowsStore).mockReturnValue({
+				getWorkflowExecution: {
+					data: {
+						resultData: {
+							runData: {
+								[nodeName]: [
+									{
+										inputOverride: {
+											main: [data],
+										},
+									},
+								],
+							},
+						},
+					},
+				},
+			} as unknown as ReturnType<typeof useWorkflowsStore>);
+			const { getNodeInputData } = useNodeHelpers();
+			const node = createTestNode({
+				name: nodeName,
+				type: 'test',
+			});
+
+			const result = getNodeInputData(node, 0, 0, 'input');
+			expect(result).toEqual(data);
+		});
+
+		it.each(['example', 'example.withdot', 'example.with.dots', 'example.with.dots and spaces'])(
+			'should return input data for "%s" node name, with given connection type and output index',
+			(nodeName) => {
+				const data = { hello: 'world' };
+				vi.mocked(useWorkflowsStore).mockReturnValue({
+					getWorkflowExecution: {
+						data: {
+							resultData: {
+								runData: {
+									[nodeName]: [
+										{
+											data: {
+												main: [data],
+											},
+										},
+									],
+								},
+							},
+						},
+					},
+				} as unknown as ReturnType<typeof useWorkflowsStore>);
+				const { getNodeInputData } = useNodeHelpers();
+				const node = createTestNode({
+					name: nodeName,
+					type: 'test',
+				});
+
+				const result = getNodeInputData(node);
+				expect(result).toEqual(data);
+			},
+		);
+	});
+});

packages/editor-ui/src/composables/useNodeHelpers.ts

@@ -539,7 +539,7 @@ export function useNodeHelpers() {
 		}
 		const runData = executionData.resultData.runData;
 
-		const taskData = get(runData, `[${node.name}][${runIndex}]`);
+		const taskData = get(runData, [node.name, runIndex]);
 		if (!taskData) {
 			return [];
 		}