Unit Testing Oracle PL/SQL Code: utPLSQL, Excel and More

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Unit and Regression
TesBng for PL/SQL
A conversaBon with three developers
who actually do this
Steven Feuerstein
Oracle Developer Advocate for PL/SQL
Oracle CorporaBon

Email: steven.feuerstein@oracle.com
TwiOer: @sfonplsql
Blog: stevenfeuersteinonplsql.blogspot.com
YouTube: PracBcally Perfect PL/SQL

Agenda

Why unit test? Why regression test?
Using Excel as a test harness
utPLSQL v3: the brave new world
2

The Unit TesBng Code Talkers
•  Jacek Gabal * Pavel Kaplya * Stefan Poschenrieder
3

Code Talker: Jacek Gabal
•  Senior So]ware Engineer at Fidelity Investments Ireland
•  Oracle SQL and PLSQL developer since 1998
•  CerBﬁed Scrum Master
•  Lean, Agile and TDD infected
•  Author of utPLSQL v3 unit tesBng framework
•  Contributor to ruby-plsql and ruby-plsql-spec unit tesBng
framework for PLSQL

Code Talker: Pavel Kaplya
•  BI So]ware Architect, OCP PL/SQL Developer
•  Diaso], Russia
•  Author of utPLSQL v3 unit tesBng framework

Code Talker: Stefan Poschenrieder
•  20 years experience with Oracle SQL and PL/SQL.
•  Freelancer with focus on development process
opBmizaBon and emphasis on tesBng).
•  "I can not live (i.e., code) without unit tests."
•  Last success story: evangelized a scrum team of 10
developers to unit-tesBng, changing the status of the
project from “red” to “green”.
•  Now supporBng next team in the company.
@utplsqlXL

WriBng so]ware is fun.
7

Buggy so]ware is....
embarrassing,
expensive, and
someBmes deadly.
8

Unfortunately, tesBng so]ware
is (hard) work and boring.

(of course some people like it a lot!)
9

Uh-oh.
10

Why Unit Test?

Clearer thinking about requirements (TDD).
Find bugs early (and cheaply).
Fewer bugs in producBon.
Make changes with conﬁdence.
Forces you to write testable code.
Makes you feel great – tesBng as a game!
11

Why (not) Regression Test?

Avoid undesirable side-eﬀects and "FDD."
Test more frequently.
Upgrade more easily.
Reduce maintenance costs.
Make users happy and sleep more easily.
12

Tools for Unit TesBng PL/SQL

utPLSQL
SQL Developer Unit TesBng
Code Tester for Oracle (commercial)
PL/Unit
dbUnit
dbFit...

13

Stefan and
Using utPLSQL with Excel (!)
14

PLSQL / ETL Tool

A "UNIT" in BI / DWH
SOURCETABLE 1
TARGET-TABLE
The highest complexity in ETL is in the T.
SOURCETABLE 2 SOURCETABLE X

Defining tests with Excel and utplsql
utPLSQL is a very cool framework, but sBll much to code

it must be very easy to define unit-tests to bring a developer in tesBng mood

In Datawarehousing a „unit“ is a very complex thing

Everybody should be a able to adapt tests, even he can not code, but understands
the business.

I always defined data using Excel. (generate Insert/statements, use sqlldr)
I always get data from other people inside Excel.

So why don‘t use Excel for unit-tesBng?

Jacek: utPLSQL v3 Key Features
- mulBple ways to compare data with matchers
- naBve comparison of complex types (objects/collecBons/cursors)
- in-depth and consistent reporBng of failures and errors for tests
- tests idenBfied and configured by annotaBons
- hierarchies of test suites configured with annotaBons
- automaBc (configurable) transacBon control
- Build-in coverage reporBng
- IntegraBon with SonarQube, Coveralls, Jenkins and Teamcity with
reporters
- plugin architecture for reporters and matchers
- flexible and simple test invocaBon
- mulB-reporBng from test-run from command line

Pavel: utPLSQL v3 Demo
Building unit tests
ExecuBng tests
Code coverage
Diﬀerent reporBng styles

ConBnuous IntegraBon / ConBnuous Delivery
What is CI/CD?
Why should I care?
Running on Teamcity
Running on Travis
Sonar IntegraBon
Coveralls

Resources for Unit TesBng with utPLSQL
- documentaBon: utplsql.github.io/utPLSQL/
- releases: github.com/utPLSQL/utPLSQL/releases
- project source: github.com/utPLSQL/utPLSQL/
- demo project: github.com/utPLSQL/utPLSQL-demo-project/
- CI for demo project with Travis
- SonarQube for demo project:
sonarqube.com/dashboard?id=utPLSQL%3AutPLSQL-demo-project%3Adevelop
- SonarQube for utPLSQL:
sonarqube.com/dashboard?id=utPLSQL%3AutPLSQL%3Adevelop
- Coveralls for utPLSQL: coveralls.io/github/utPLSQL/utPLSQL

- TwiOer: #utPLSQL, @utPLSQL, @GebalJacek, @Pazus

Unit TesBng PL/SQL
take your code to the next level

frameworks and tools gexng more powerful

utplsql v3 in parBcular oﬀers tremendous promise

21

Unit Testing Oracle PL/SQL Code: utPLSQL, Excel and More

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