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packages/nodes-base/nodes/Google/Sheet/test/v2/methods/resourceMapping.test.ts

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+import type { MockProxy } from 'jest-mock-extended';
+import { mock } from 'jest-mock-extended';
+import type { ILoadOptionsFunctions, INode } from 'n8n-workflow';
+
+import { getMappingColumns } from '../../../v2/methods/resourceMapping';
+
+jest.mock('../../../v2/helpers/GoogleSheets.utils');
+
+const mockGoogleSheetInstance = {
+	spreadsheetGetSheets: jest.fn(),
+	spreadsheetGetSheet: jest.fn(),
+	getData: jest.fn(),
+	testFilter: jest.fn(),
+};
+
+jest.mock('../../../v2/helpers/GoogleSheet', () => ({
+	GoogleSheet: jest.fn().mockImplementation(() => mockGoogleSheetInstance),
+}));
+
+describe('Google Sheets, getMappingColumns', () => {
+	let loadOptionsFunctions: MockProxy<ILoadOptionsFunctions>;
+
+	beforeEach(() => {
+		loadOptionsFunctions = mock<ILoadOptionsFunctions>();
+	});
+
+	afterEach(() => {
+		jest.clearAllMocks();
+	});
+
+	it('should map columns and add row number for update operation', async () => {
+		loadOptionsFunctions.getNode.mockReturnValue({} as INode);
+		loadOptionsFunctions.getNodeParameter
+			.mockReturnValueOnce({ mode: 'id', value: 'spreadsheetId' }) // documentId
+			.mockReturnValueOnce({ mode: 'name', value: 'Sheet1' }) // sheetName
+			.mockReturnValueOnce({ mode: 'name' }) // sheetName mode
+			.mockReturnValueOnce({}) // options.locationDefine.values
+			.mockReturnValueOnce('update'); // operation
+
+		mockGoogleSheetInstance.spreadsheetGetSheet.mockResolvedValueOnce({
+			title: 'Sheet1',
+			sheetId: 1,
+		});
+		mockGoogleSheetInstance.getData.mockResolvedValueOnce([['id', 'name', 'email']]);
+		mockGoogleSheetInstance.testFilter.mockReturnValueOnce(['id', 'name', 'email']);
+
+		const result = await getMappingColumns.call(loadOptionsFunctions);
+
+		expect(result.fields).toHaveLength(4);
+		expect(result.fields).toEqual([
+			{
+				canBeUsedToMatch: true,
+				defaultMatch: true,
+				display: true,
+				displayName: 'id',
+				id: 'id',
+				required: false,
+				type: 'string',
+			},
+			{
+				canBeUsedToMatch: true,
+				defaultMatch: false,
+				display: true,
+				displayName: 'name',
+				id: 'name',
+				required: false,
+				type: 'string',
+			},
+			{
+				canBeUsedToMatch: true,
+				defaultMatch: false,
+				display: true,
+				displayName: 'email',
+				id: 'email',
+				required: false,
+				type: 'string',
+			},
+			{
+				canBeUsedToMatch: true,
+				defaultMatch: false,
+				display: true,
+				displayName: 'row_number',
+				id: 'row_number',
+				readOnly: true,
+				removed: true,
+				required: false,
+				type: 'number',
+			},
+		]);
+	});
+
+	it('should map columns and add row number for appendOrUpdate operation', async () => {
+		loadOptionsFunctions.getNode.mockReturnValue({} as INode);
+		loadOptionsFunctions.getNodeParameter
+			.mockReturnValueOnce({ mode: 'id', value: 'spreadsheetId' }) // documentId
+			.mockReturnValueOnce({ mode: 'name', value: 'Sheet1' }) // sheetName
+			.mockReturnValueOnce({ mode: 'name' }) // sheetName mode
+			.mockReturnValueOnce({ headerRow: 10 }) // options.locationDefine.values
+			.mockReturnValueOnce('appendOrUpdate'); // operation
+
+		mockGoogleSheetInstance.spreadsheetGetSheet.mockResolvedValueOnce({
+			title: 'Sheet1',
+			sheetId: 1,
+		});
+		mockGoogleSheetInstance.getData.mockResolvedValueOnce([['id', 'name', 'email']]);
+		mockGoogleSheetInstance.testFilter.mockReturnValueOnce(['id', 'name', 'email']);
+
+		const result = await getMappingColumns.call(loadOptionsFunctions);
+
+		expect(result.fields).toHaveLength(3);
+		expect(mockGoogleSheetInstance.getData).toHaveBeenCalledWith('Sheet1!10:10', 'FORMATTED_VALUE');
+	});
+});