#2126 add SQLLoggerTest

[betterjava]

Fixes #2126 .

Changes proposed in this pull request:

• add SQLLogTest to test SQLLogger

[terrymanu]

Fields should have a blank line each other

[betterjava]

Ok,I will fix this.

[terrymanu]

Should use mock, not test real logback

[betterjava]

Mockito can not support mock static method. Should I add powermock to the project dependency tree?

[terrymanu]

log.info() is not a static method

[betterjava]

I can not find a way to mock a logger for SQLLogger. Mockito can create a mock for Logger,but I can not figure out how to replace real logger with the mock logger.So I close the pull now.

[betterjava]

@terrymanu PowerMock can do this work.

        Logger log = PowerMockito.mock(Logger.class);
        PowerMockito.mockStatic(LoggerFactory.class);
        PowerMockito.when(LoggerFactory.getLogger("ShardingSphere-SQL")).thenReturn(log);
        SQLLogger.logSQL("select * from user", Arrays.asList("db1", "db2"));
        InOrder inOrder = Mockito.inOrder(log);
        inOrder.verify(log).info("Rule Type: master-slave", new Object[]{});
        inOrder.verify(log).info("SQL: {} ::: DataSources: {}", new Object[]{ "select * from user","db1,db2"});

[terrymanu]

Import new mock dependency is unnecessary.
method log.info() is not static method, why we have to import power mock to mock this?

[terrymanu]

You can use reflection to inject mocked logger

[betterjava]

Thanks,I will try.