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packages/nodes-base/nodes/Code/test/JsCodeValidator.test.ts

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+import { validateNoDisallowedMethodsInRunForEach } from '../JsCodeValidator';
+
+describe('JsCodeValidator', () => {
+	describe('validateNoDisallowedMethodsInRunForEach', () => {
+		it('should not throw error if disallow method is used within single line comments', () => {
+			const code = [
+				"// Add a new field called 'myNewField' to the JSON of the item",
+				'$input.item.json.myNewField = 1;',
+				' // const xxx = $input.all()',
+				'return $input.item;',
+			].join('\n');
+
+			expect(() => validateNoDisallowedMethodsInRunForEach(code, 0)).not.toThrow();
+		});
+
+		it('should not throw error if disallow method is used in single multi line comments', () => {
+			const code = [
+				"// Add a new field called 'myNewField' to the JSON of the item",
+				'$input.item.json.myNewField = 1;',
+				'/** const xxx = $input.all()*/',
+				'return $input.item;',
+			].join('\n');
+
+			expect(() => validateNoDisallowedMethodsInRunForEach(code, 0)).not.toThrow();
+		});
+
+		it('should not throw error if disallow method is used within multi line comments', () => {
+			const code = [
+				"// Add a new field called 'myNewField' to the JSON of the item",
+				'$input.item.json.myNewField = 1;',
+				'/**',
+				'*const xxx = $input.all()',
+				'*/',
+				'return $input.item;',
+			].join('\n');
+
+			expect(() => validateNoDisallowedMethodsInRunForEach(code, 0)).not.toThrow();
+		});
+
+		it('should throw error if disallow method is used', () => {
+			const code = [
+				"// Add a new field called 'myNewField' to the JSON of the item",
+				'$input.item.json.myNewField = 1;',
+				'const xxx = $input.all()',
+				'return $input.item;',
+			].join('\n');
+
+			expect(() => validateNoDisallowedMethodsInRunForEach(code, 0)).toThrow();
+		});
+	});
+});