How to do UT for pl/sql code?

Question

Are there some tools for doing Unit Test for PL/SQL code?
Are there any others tools,except the function of test in pl/sql developer?

Answer 1

I have defined a package named pkg_utplsql_test with 1 function called btwnstr (taken from utplsql samples).
This package/function exists in schema1@instance1.
Now I have schema2@instance2. Here I have defiend my test package called ut_pkg_utplsql_test and this has the setup and tear down
procs as follows:
procedure ut_setup
is
    begin
        null;
    end;
procedure ut_teardown
is
    begin
         null;
    end;Now I need to add ut_btwnstr to test the proc defined in schema1@instance1. I have defined a dblink named instance1 to
access the package from instance2. I am confused about writing ut_btwnstr . Here is what I have done and it does compile.
PROCEDURE ut_btwnstr IS
   BEGIN
      utAssert.eq (
      'Typical valid usage',
      pkg_utplsql_test.btwnstr@instance1(STRING_IN => 'abcdefg',START_IN => 3,END_IN => 5),'cde');
      end ut_btwnstr; Is this correct?
And now when I need to test it, how do I call. I am confised:(.
exec utplsql.test('pkg_utplsql_test.btwnstr@instance1',recompile_in => FALSE)