Address TODOs in tests

[lilgreenbird]

removed/addressed/created backlog on TODOs

[codecov-io]

Codecov Report

Merging #873 into dev will decrease coverage by 0.29%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##                dev     #873     +/-   ##
===========================================
- Coverage     48.98%   48.68%   -0.3%     
+ Complexity     2821     2796     -25     
===========================================
  Files           116      116             
  Lines         27877    27877             
  Branches       4650     4650             
===========================================
- Hits          13655    13573     -82     
+ Misses        12104    12098      -6     
- Partials       2118     2206     +88

Flag	Coverage Δ	Complexity Δ
#JDBC42	48.26% <ø> (+0.07%)	2757 <ø> (+7)	⬆️
#JDBC43	48.56% <ø> (-0.36%)	2787 <ø> (-29)

Impacted Files	Coverage Δ	Complexity Δ
...om/microsoft/sqlserver/jdbc/ReaderInputStream.java	40.65% <0%> (-4.4%)	13% <0%> (-2%)
...in/java/com/microsoft/sqlserver/jdbc/IOBuffer.java	56.2% <0%> (-2.04%)	0% <0%> (ø)
...m/microsoft/sqlserver/jdbc/SQLServerException.java	77.44% <0%> (-1.51%)	31% <0%> (-2%)
...c/main/java/com/microsoft/sqlserver/jdbc/Util.java	60.99% <0%> (-1.08%)	89% <0%> (-4%)
...n/java/com/microsoft/sqlserver/jdbc/tdsparser.java	68.1% <0%> (-0.87%)	0% <0%> (ø)
.../microsoft/sqlserver/jdbc/SQLServerConnection.java	48.09% <0%> (-0.54%)	335% <0%> (-15%)
...m/microsoft/sqlserver/jdbc/SQLServerStatement.java	59.57% <0%> (-0.29%)	135% <0%> (-6%)
...om/microsoft/sqlserver/jdbc/SQLServerBulkCopy.java	52.85% <0%> (+0.12%)	264% <0%> (+1%)	⬆️
...m/microsoft/sqlserver/jdbc/SQLServerResultSet.java	32.77% <0%> (+0.3%)	256% <0%> (+3%)	⬆️

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