test: improved test testGetInsertParamsValue in SqlServerInsertRecognizerTest by splitting and parameterizing

[Monilnarang]

• I have registered the PR changes.

Ⅰ. Describe what this PR did

Summary:

• Separated independent logics inside the aforementioned test, i.e. checking for explicit values and default value.
• Parameterized the test with explicit values

Elaboration:

• The same method calls (getSQLStatement, creating recognizer) were repeated multiple times with different inputs, making the test harder to maintain and extend.
• The test also had 2 independent logics of checking for explicit values and default value under single test.
• When a test fails, JUnit only shows which assertion failed, but not which specific input caused the failure.
• Adding new test cases requires copying and pasting another block of statements instead of simply adding new data.

To accomplish this, I separated the 2 logics into different test and then retrofitted the explicit values test into a parameterized unit test. This reduces duplication, allows easy extension by simply adding new value sets, and makes debugging easier as it clearly indicates which test failed instead of requiring a search through individual assertions. The separated tests also increase the fault detection capabilities of the suit.

Test execution results after changes:

Ⅱ. Does this pull request fix one issue?

Ⅲ. Why don't you add test cases (unit test/integration test)?

Ⅳ. Describe how to verify it

Successful tests run

Ⅴ. Special notes for reviews

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.21%. Comparing base (b1f0c04) to head (32d852e).

Additional details and impacted files

@@             Coverage Diff              @@
##                2.x    #7294      +/-   ##
============================================
- Coverage     54.21%   54.21%   -0.01%     
  Complexity     7267     7267              
============================================
  Files          1178     1178              
  Lines         41969    41969              
  Branches       4926     4926              
============================================
- Hits          22754    22753       -1     
- Misses        17063    17064       +1     
  Partials       2152     2152              

see 6 files with indirect coverage changes

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