@Test
    public void testFromJsonAboutString() {
        TestObject testObject = generateTestObject();

        assertEquals(testObject, GsonUtils.getInstance().fromJson(EXPECTED_JSON, TestObject.class));
    }
test method about {@link GsonUtils#fromJson(String, Class)}.
shenyu-common/src/test/java/org/apache/shenyu/common/utils/GsonUtilsTest.java