n8n/packages/nodes-base/nodes/HttpRequest/test/GenericFunctions.test.ts

import { updadeQueryParameterConfig } from '../GenericFunctions';

describe('updadeQueryParameterConfig', () => {
	describe('version < 4.3 (legacy behavior)', () => {
		const updateQueryParam = updadeQueryParameterConfig(4.2);

		it('should set simple key-value pairs', () => {
			const qs = {};
			updateQueryParam(qs, 'key1', 'value1');
			expect(qs).toEqual({ key1: 'value1' });
		});

		it('should overwrite existing values', () => {
			const qs = { key1: 'oldValue' };
			updateQueryParam(qs, 'key1', 'newValue');
			expect(qs).toEqual({ key1: 'newValue' });
		});
	});

	describe('version >= 4.3 (array behavior)', () => {
		const updateQueryParam = updadeQueryParameterConfig(4.3);

		it('should set initial value when key does not exist', () => {
			const qs = {};
			updateQueryParam(qs, 'key1', 'value1');
			expect(qs).toEqual({ key1: 'value1' });
		});

		it('should create array when adding second value', () => {
			const qs = { key1: 'value1' };
			updateQueryParam(qs, 'key1', 'value2');
			expect(qs).toEqual({ key1: ['value1', 'value2'] });
		});

		it('should append to existing array', () => {
			const qs = { key1: ['value1', 'value2'] };
			updateQueryParam(qs, 'key1', 'value3');
			expect(qs).toEqual({ key1: ['value1', 'value2', 'value3'] });
		});

		it('should handle undefined values correctly', () => {
			const qs = {};
			updateQueryParam(qs, 'newKey', 'value');
			expect(qs).toEqual({ newKey: 'value' });
		});
	});

	describe('version boundary', () => {
		it('should use legacy behavior for version 4.2', () => {
			const updateQueryParam = updadeQueryParameterConfig(4.2);
			const qs = { key: 'first' };
			updateQueryParam(qs, 'key', 'second');
			expect(qs.key).toBe('second');
		});

		it('should use array behavior for version 4.3', () => {
			const updateQueryParam = updadeQueryParameterConfig(4.3);
			const qs = { key: 'first' };
			updateQueryParam(qs, 'key', 'second');
			expect(qs.key).toEqual(['first', 'second']);
		});
	});
});