Issue #363: Adds Unit Tests for Test Comparisons (#366)

* issue #363: starts unit tests for Test Comparison.

* issue #363: Adds tests for "eq" operation

* changes test result message

* issue #363: Adds tests for "noteq" operation

* issue #363: Adds tests for "gt" operation

* issue #363: Adds tests for "lt" operation

* issue #363: Adds tests for "gte" operation

* issue #363: Adds tests for "lte" operation

* issue #363: Adds tests for "has" operation

* issue #363: Adds tests for "nothave" operation

* issue #363: Adds tests for "regex" operation