Fixed tests

tests/json.spec.ts

@@ -0,0 +1,33 @@
+import {JSONAttemptParse, JSONSanitize, JSONSerialize} from '../src';
+
+describe('JSON Utilities', () => {
+	describe('JSONAttemptParse', () => {
+		it('parses valid JSON', () => {
+			expect(JSONAttemptParse('{"a":1}')).toEqual({ a: 1 });
+		});
+		it('returns original string on error', () => {
+			expect(JSONAttemptParse('not json')).toBe('not json');
+		});
+	});
+
+	describe('JSONSerialize', () => {
+		it('serializes objects', () => {
+			expect(JSONSerialize({ a: 1 })).toBe(JSON.stringify({ a: 1 }));
+		});
+		it('leaves primitives as is', () => {
+			expect(JSONSerialize('test')).toBe('test');
+			expect(JSONSerialize(123)).toBe(123);
+		});
+	});
+
+	describe('JSONSanitize', () => {
+		it('stringifies objects', () => {
+			expect(JSONSanitize({ a: 1 })).toBe(JSON.stringify({ a: 1 }));
+		});
+		it('does not throw on circular refs', () => {
+			const obj: any = {};
+			obj.self = obj;
+			expect(() => JSONSanitize(obj)).not.toThrow();
+		});
+	});
+});