New method search() in TextFile.java. Test case for that method written,
test case passed. Some final variables in test suite renamed to better
reflect their purpose.
Spelling error corrected in test suite. New test case added for
search(), which fails.
pass the 2nd test case for search()
wrote 3rd test case for search(), which passes.
Modified strings in test suite for search() to better reflect what is
needed. Test fails.
pass the modified test cases for search()
Wrote 4th test case for search(). Fails.
Pass 4th test case for search()
added 5th test case for search(). Passes.