Remove hardcoded names in junit tests

[lilgreenbird]

Cleanup junit tests to remove hardcoded names

[codecov-io]

Codecov Report

Merging #809 into dev will decrease coverage by 0.3%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##                dev     #809      +/-   ##
============================================
- Coverage     48.67%   48.37%   -0.31%     
+ Complexity     2814     2784      -30     
============================================
  Files           116      116              
  Lines         27878    27878              
  Branches       4651     4651              
============================================
- Hits          13571    13486      -85     
- Misses        12171    12174       +3     
- Partials       2136     2218      +82

Flag	Coverage Δ	Complexity Δ
#JDBC42	47.89% <ø> (-0.3%)	2742 <ø> (-29)
#JDBC43	48.32% <ø> (+0.01%)	2783 <ø> (-1)	⬇️

Impacted Files	Coverage Δ	Complexity Δ
...in/java/com/microsoft/sqlserver/jdbc/IOBuffer.java	54.58% <0%> (-1.98%)	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	47.91% <0%> (-0.54%)	334% <0%> (-14%)
...oft/sqlserver/jdbc/SQLServerPreparedStatement.java	51.77% <0%> (-0.46%)	212% <0%> (-4%)
...m/microsoft/sqlserver/jdbc/SQLServerStatement.java	59.51% <0%> (-0.29%)	135% <0%> (-6%)
...n/java/com/microsoft/sqlserver/jdbc/DataTypes.java	79.28% <0%> (-0.2%)	4% <0%> (-1%)
...soft/sqlserver/jdbc/SQLServerDatabaseMetaData.java	33.33% <0%> (+0.11%)	62% <0%> (ø)	⬇️
...om/microsoft/sqlserver/jdbc/SQLServerBulkCopy.java	52.58% <0%> (+0.12%)	263% <0%> (+1%)	⬆️
... and 3 more

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