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

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+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']);
+		});
+	});
+});