Parametermized tests for Rewrite module.

[tristaZero]

We will add parameter tests for rewrite module to ensure the rewriting correct and improve the test coverge.

The basic processing is as follow:

1. ParseResult.xml --->ParseResultEntity-->SQLStatemtent-->Optimize()-->OptimizedResult.xml-->ShardingConditions

2. ShardingConditions+OptimizedResult.xml-->
   ShardingConditions+SQLStatemtent-->SQLRewriteEngine-->Rewrite()-->SQLBuilder-->Actual SQLs

3. RewriteResult.xml-->Excpected SQLs

4. Assert(Actual SQLs, Excpected SQLs)-->AssertMessage-->Output.

[terrymanu]

After rewrite module refactor already finished, we can redefine tasks for rewrite test module.

• Use yaml to setup encrypt rewrite engine
• Use parse engine to setup SQLStatementContext
• Unify sharding and encrypt's configuration of table names and column names
• Use Parametermized test and XML to setup encrypt rewrite test engine
• Use Parametermized test and XML to setup sharding rewrite test engine
• Use Parametermized test and XML to setup mix for sharding + encrypt rewrite test engine

[terrymanu]

Parametermized test's xml definition:

<rewrite-assertions yaml-rule="xxx.yaml">
    <rewrite-assertion sql-case-id="xxx" parameters="xx, xx" rewrited-sql="xxx" rewrited-parameters="xx, xx" />
</rewrite-assertions>

Attributes parameters and ewrited-parameters are optional.

[terrymanu]

finally, the xml definition is:

<rewrite-assertions yaml-rule="xxx.yaml">
    <rewrite-assertion id="xxx" db-type="xxx">
        <input sql="xxx" parameters="x, x" />
        <output sql="xxx" parameters="x, x" />
    </rewrite-assertion>
</rewrite-assertions>