Add auto type support to remove dependency among tests

[rRajivramachandran]

The test com.alibaba.fastjson.serializer.TestParse.testParse fails when run standalone or if it is run before com.alibaba.json.bvt.support.spring.FastJsonRedisSerializerTest.test_6. This PR removes such a dependency.

Steps to reproduce

1. Create a custom test suite CustomTestSuite.java and change pom.xml to just run this using mvn test. Changes can be pulled from the following branch test-setup.
2. mvn install -pl .
3. mvn test
4. Reverse order in test suite and run mvn test again
5. To see the test fail independently run mvn test -Dtest=com.alibaba.fastjson.serializer.TestParse#testParse

Issue and root cause

The following are the logs when TestParse is run before FastJsonRedisSerializerTest

[INFO] Running com.alibaba.fastjson.serializer.CustomSuiteTest
Nov 05, 2023 6:56:36 PM com.alibaba.fastjson.serializer.TestParse testParse
INFO: parsing json string:{"@type":"com.alibaba.fastjson.serializer.TestBean","data":{"@type":"com.alibaba.fastjson.JSONObject","key":"value"},"name":"tester"}
[ERROR] Tests run: 7, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 1.889 s <<< FAILURE! - in com.alibaba.fastjson.serializer.CustomSuiteTest
[ERROR] com.alibaba.fastjson.serializer.TestParse.testParse  Time elapsed: 1.171 s  <<< ERROR!
com.alibaba.fastjson.JSONException: autoType is not support. com.alibaba.fastjson.serializer.TestBean
	at com.alibaba.fastjson.serializer.TestParse.testParse(TestParse.java:37)

However when the order of test classes are reversed, it passes:

Running com.alibaba.fastjson.serializer.CustomSuiteTest
Nov 05, 2023 7:00:36 PM com.alibaba.fastjson.serializer.TestParse testParse
INFO: parsing json string:{"@type":"com.alibaba.fastjson.serializer.TestBean","data":{"@type":"com.alibaba.fastjson.JSONObject","key":"value"},"name":"tester"}
[INFO] Tests run: 7, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.712 s - in com.alibaba.fastjson.serializer.CustomSuiteTest
[INFO] 
[INFO] Results:
[INFO] 
[INFO] Tests run: 7, Failures: 0, Errors: 0, Skipped: 0

This happens because a TestBean class object is created and serialized producing an automatic type as indicated in the logs parsing json string:{"@type":"com.alibaba.fastjson.serializer.TestBean","data":{"@type":"com.alibaba.fastjson.JSONObject","key":"value"},"name":"tester"} during the run of TestParse. This string is attempted to be deserialized at TestParse. Due to security reasons, deserialization of auto type is set as a configurable flag, and if it is not enabled, the above seen error occurs ParserConfig. The FastJsonRedisSerializerTest sets this property on the global instance. The same global instance gets used when TestParse is run after it because it does not pass any config while calling JSON.parse(). This is the reason the test passes.

Fix:

To remove this dependency and not create any more dependencies, the flag is set on a local config object created for this test. This ParseConfig object is explicitly passed for deserialization.

Verification of fix:

Test passes when run standalone. (mvn test -Dtest=com.alibaba.fastjson.serializer.TestParse#testParse)

[CLAassistant]

All committers have signed the CLA.

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}