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ruby-plsql-spec

PL/SQL unit testing with Ruby

Unit testing of PL/SQL procedures with Ruby libraries:

  • ruby-plsql - Ruby API for calling PL/SQL procedures
  • RSpec - Ruby testing (or behavior driven development) framework

Examples

PL/SQL procedure examples are in examples/source subdirectory, test examples are in examples/spec subdirectory.

Installing

See Installing on Windows in separate file.

  • Install Ruby 1.8.7, 1.9.3 or 2.x - it is recommended to use latest version

  • Install Oracle client, e.g. Oracle Instant Client

  • Install ruby-oci8 and ruby-plsql-spec (prefix with sudo if necessary)

      gem install ruby-oci8
  gem install ruby-plsql-spec

Another alternative is to use JRuby if for example it is necessary also to test Java classes / methods using Ruby.

  • Install JRuby

  • Copy Oracle JDBC driver (e.g. ojdbc6.jar) to JRUBY_HOME/lib directory

  • Install ruby-plsql-spec (prefix with sudo if necessary)

      jruby -S gem install ruby-plsql-spec

Initializing project directory

In your project directory execute

    plsql-spec init

which will create spec directory where test files will be located.

Modify spec/database.yml file and specify database connection which should be used when running tests. In database: parameter specify either TNS connection name or use "servername/databasename" or "servername:port/databasename" to specify host, port and database name.

Start creating tests in files with _spec.rb at the end of file name. If there will be not so many files then you can place them directly in spec directory. If there will be many tests files then create separate directories per module / functionality group and place tests files in subdirectories. You can also create factories and helpers subdirectories per each module / functionality group.

Executing tests

All tests can be run from command line using

    plsql-spec run

or if you want to run tests just from one file then use, e.g.

    plsql-spec run spec/example_spec.rb

You can get additional help about plsql-spec command line utility with

    plsql-spec help

Generating HTML RSpec output

If you would like to see a colour HTML report about the test results, just run the tests with --html option:

    plsql-spec run --html [filename]

HTML report will be generated to [filename] file. If you don't specify filename, then it will generated to test-results.html. You can open it in your browser.

Code coverage reporting

If you would like to see PL/SQL code coverage report (which lines of code were executed during tests run) then run tests with --coverage option:

    plsql-spec run --coverage

Coverage reports will be created as HTML files in coverage/ directory. Open with your browser coverage/index.html file.

Code coverage is gathered using DBMS_PROFILER package. Please take into account that only those packages will be analyzed to which current database session user has CREATE privilege.

How to start?

Read blog post about Oracle PL/SQL unit testing with Ruby.

If you are not familiar with Ruby I recommend to start with Ruby in Twenty Minutes tutorial. Then you can take a look on some RSpec examples how to write and structure tests. And then you can take a look at ruby-plsql own tests to see how to pass parameters and verify results for different PL/SQL data types.

How to customize ruby-plsql-spec for my project?

  • Review spec/spec_helper.rb file and modify if needed directories where you will store additional required files (helper files, factory files, source files).
  • Review and or create new helper files in spec\helpers directory.
  • Create new factory methods for test data creation in factories directory (see example in examples/spec/factories).

How to upgrade ruby-plsql-spec to latest version

You can see current ruby-plsql-spec version with

    plsql-spec -v

If you want to upgrade ruby-plsql-spec to latest version then just do

    gem install ruby-plsql-spec

If you have upgraded from ruby-plsql-spec version 0.1.0 to 0.2.0 then you need to update your spec_helper.rb file to use rspec 2.0. You can do it by running one more time

    plsql-spec init

which will check which current files are different from the latest templates. You need to update just spec_helper.rb file. When you will be prompted to overwrite spec_helper.rb file then at first you can enter d to see differences between current file and new template. If you have not changed original spec_helper.rb file then you will see just one difference

    - Spec::Runner.configure do |config|
    + RSpec.configure do |config|

You can then answer y and this file will be updated. When you will be prompted to overwrite other files then you can review the changes in the same way and decide if you want them to be overwritten or not.