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packages/@n8n/nodes-langchain/nodes/ModelSelector/test/helpers.test.ts

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+import type { INodeParameters, INodePropertyOptions } from 'n8n-workflow';
+
+// Import the function and property
+import { numberInputsProperty, configuredInputs } from '../helpers';
+
+// We need to extract the configuredInputs function for testing
+// Since it's not exported, we'll test it indirectly through the node's inputs property
+
+describe('ModelSelector Configuration', () => {
+	describe('numberInputsProperty', () => {
+		it('should have correct configuration', () => {
+			expect(numberInputsProperty.displayName).toBe('Number of Inputs');
+			expect(numberInputsProperty.name).toBe('numberInputs');
+			expect(numberInputsProperty.type).toBe('options');
+			expect(numberInputsProperty.default).toBe(2);
+			expect(numberInputsProperty.validateType).toBe('number');
+		});
+
+		it('should have options from 2 to 10', () => {
+			const options = numberInputsProperty.options as INodePropertyOptions[];
+			expect(options).toHaveLength(9);
+			expect(options[0]).toEqual({ name: '2', value: 2 });
+			expect(options[8]).toEqual({ name: '10', value: 10 });
+		});
+
+		it('should have all sequential values from 2 to 10', () => {
+			const expectedValues = [2, 3, 4, 5, 6, 7, 8, 9, 10];
+			const options = numberInputsProperty.options as INodePropertyOptions[];
+			const actualValues = options.map((option) => option.value);
+			expect(actualValues).toEqual(expectedValues);
+		});
+	});
+
+	describe('configuredInputs function', () => {
+		it('should generate correct input configuration for default value', () => {
+			const parameters: INodeParameters = { numberInputs: 2 };
+			const result = configuredInputs(parameters);
+
+			expect(result).toEqual([
+				{ type: 'ai_languageModel', displayName: 'Model 1', required: true, maxConnections: 1 },
+				{ type: 'ai_languageModel', displayName: 'Model 2', required: true, maxConnections: 1 },
+			]);
+		});
+
+		it('should generate correct input configuration for custom value', () => {
+			const parameters: INodeParameters = { numberInputs: 5 };
+			const result = configuredInputs(parameters);
+
+			expect(result).toEqual([
+				{ type: 'ai_languageModel', displayName: 'Model 1', required: true, maxConnections: 1 },
+				{ type: 'ai_languageModel', displayName: 'Model 2', required: true, maxConnections: 1 },
+				{ type: 'ai_languageModel', displayName: 'Model 3', required: true, maxConnections: 1 },
+				{ type: 'ai_languageModel', displayName: 'Model 4', required: true, maxConnections: 1 },
+				{ type: 'ai_languageModel', displayName: 'Model 5', required: true, maxConnections: 1 },
+			]);
+		});
+
+		it('should handle undefined numberInputs parameter', () => {
+			const parameters: INodeParameters = {};
+			const result = configuredInputs(parameters);
+
+			expect(result).toEqual([
+				{ type: 'ai_languageModel', displayName: 'Model 1', required: true, maxConnections: 1 },
+				{ type: 'ai_languageModel', displayName: 'Model 2', required: true, maxConnections: 1 },
+			]);
+		});
+	});
+});