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Installation TestingInstallation Testing
Definition & Method

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TABLE OF CONTENTTABLE OF CONTENT
 INTRODUCTION
 METHODOLOGY
 SAMPLE TEST CASES & BUG CASES
 TIPS AND TRICKS

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IntroductionIntroduction
 Installation testing is performed to ensure that all
Installed features and options function properly.
 It is also performed to verify that all necessary
components of the application are, indeed,
installed.
 In another word, Installation testing focuses on
the way the new application or system is placed
into its production environment

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MethodologyMethodology
 Installation testing should take care of the
following points:
− To check if while installing product checks for the
dependent software / patches say Service pack3.
− Content/instructions displayed in installers are correct
(typo, grammar, characters)
− The product should check for the version of the same
product on the target machine, say the previous version
should not be over installed on the newer version.
− Installer should give a default installation path say
“C:programs.”

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MethodologyMethodology
− Installer should allow user to install at location other then
the default installation path.
− Check if the product can be installed “Over the Network”
− Installation should start automatically when the CD is
inserted.
− Installer should give the remove / Repair options.
− When uninstalling, check that all the registry keys, files,
Dll, shortcuts, active X components are removed from the
system.

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MethodologyMethodology
− Try to install the software without administrative
privileges (login as guest).
− Try installing on different operating system.
− Try installing on system having non-compliant
configuration such as less memory / RAM / HDD.
− Different domaintime zone
− Installation completion details like Readme, INI and log
file

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MethodologyMethodology
− with existing instance (for update)
− Forwardreverse compatibility
− ServerClient side validation
− Uninstalled application can be repaired with reinstall

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Sample Test Cases & Bug CasesSample Test Cases & Bug Cases
 Test Cases
− Test Case 1 Summary: Verify application is
installed to the correct folder path specified by user
− Steps:
 Run application executable installation file
 Set the destination of installing application to a
specific folder ( e.g. C:AUT
 Complete the installation process
 Browse to C:AUT folder
 Check that all files and folders of installed
application are presents

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Sample Test Cases & Bug CasesSample Test Cases & Bug Cases
− Test Case 2 Summary: Verify instructions in
installers are displayed correctly
− Steps
 Run application executable installation file
 Continue installation process through each screen
and make sure the content of instructions
displays correctly

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Sample Test Cases & Bug CasesSample Test Cases & Bug Cases
− Bug Cases
• Summary: Installation process failed due to
defective installation package

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Sample Test Cases & Bug CasesSample Test Cases & Bug Cases
− Summary: installers still gives out error
even user tries to install with
Administrator account

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Tips and TricksTips and Tricks
 Use flow diagrams to perform
installation testing. Flow diagrams
simplify our task. See example flow
diagram for basic installation testing
test case.

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Tips and TricksTips and Tricks
Flow diagram

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Tips and TrickTips and Trick
 If you have previously installed
compact basic version of application
then in next test case install the full
application version on the same
path as used for compact version.

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Tips and TricksTips and Tricks
 Use flow diagrams to automate the
testing efforts. It will be very easy
to convert diagrams into automated
scripts.

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Tips and TrickTips and Trick
 Test the installer scripts used for
checking the required disk space. If
installer is prompting required disk
space 1MB, then make sure exactly
1MB is used or whether more disk
space utilized during installation. If
yes flag this as error.

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Tips and TrickTips and Trick
 If possible set a dedicated system for
only creating disk images.

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Tips and TricksTips and Tricks
 Forcefully break the installation
process in between. See the
behavior of system and whether
system recovers to its original state
without any issues. You can test this
“break of installation” on every
installation step.

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Tips and TricksTips and Tricks
 Use software’s available freely in
market to verify registry
changes on successful installation.
Verify the registry changes with your
expected change list after installation.

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ReferenceReference
 http://www.softwaretestinghelp.com/cat
 http://www.vietnamesetestingboard.org/
 http://csqa.info/istqb_certification#comm