Transcript WinRunner Softsmith Infotech

WinRunner
Softsmith Infotech
Need For Automation
• Speed - Automation scripts run very fast when
compared to human users.
• Reliable - Tests perform precisely the same operations
each time they are run, thereby eliminating human error.
• Repeatable - We can test how the application reacts
after repeated execution of the same operations.
• Programmable - We can program sophisticated tests
that bring out hidden information.
• Comprehensive - We can build a suite of tests that
covers every feature in our application.
• Reusable - We can reuse tests on different versions of
an application, even if the user interface changes.
WinRunner Overview
What is WinRunner?
•
WinRunner is a test automation tool, designed to help customers save testing time
and effort by automating the manual testing process
– manual process: perform operations by hand, visually check results, and log
results by hand
– automated process: create a test script that will perform the same operations
as a Human operator, check the same information, and create a summary
report showing the test status
Recording
Recording Modes
•
•
•
•
•
Context-sensitive mode
Analog mode
Tests can combine both recording modes
Context-Sensitive is the default mode
Switch between modes using same record key (F2)
Context-Sensitive Mode
•
•
•
•
•
Object-based
Unaffected by minor UI changes
Maintainable (readable/editable)
Generally used with GUI applications
Portable script
Context-Sensitive Mode
Set focus to the window
set_window ("Save As");
edit_set(“File Name”,“output14”);
Set the edit field content
button_press(“OK”);
Button press
output14
Analog Mode
•
•
•
•
Position-dependent
Works with any application
UI changes force test script changes
Usually drives tests with mouse, keyboard and
other such manual user inputs
• Less maintainable
y
x
Analog Mode
mouse drag
move_locator_track (1);
mtype (" <T55> <kLeft>-<kLeft>+");
type (" <t3>output14" );
move_locator_track (2);
mtype (" <T35><kLeft>-<kLeft>+ ");
keyboard
mouse click
timing
output14
Recording Modes
• Context-Sensitive mode statements can be
recorded or programmed
– record: button_press, win_activate
– program: list_get_num_items, edit_get_text
– recommended for most situations due to greater robustness
• Analog mode statements are rarely programmed,
mostly recorded and edited
– record: move_locator, type, mtype
– program: move_locator_abs, move_locator_rel, click
– Analog statements are useful for literally describing the keyboard, mouse,
and mouse button input of the user
Recording Tips
• plan your work
– decide exactly what actions / data to record
• check initial conditions
– test cases may have data dependency
– test cases may have screen dependence
– establish a common “initial state” for testing
• walk through the test case manually
– Verify that the test case is functional before recording script
• “test” your test script
– verify that the script will replay reliably by executing several times.
– watch the script execute and verify that it performs its intended
function
Recording Tips
• Use RapidTest Script Wizard to generate a comprehensive GUIMap
for the tested application
Recording Tips
Run Modes
• Debug
– debug is good to use while the test script is being debugged
– these test results are overwritten with each new run
• Verify
– Corresponds to actual results
– Generally used when executing testing sessions where results need to be stored
• Update
– Corresponds to “expected” results. Expected results are the benchmarks used to
verify test results
– Test runs in “Update” mode generate the expected results for future runs to
compare back against
– These test results become the expected results for subsequent test runs in
“Verify” mode
Synchronization
• Enhances a test script to ensure reliable replay
– accounts for delays in order to prevent the automated script from running faster
than the tested application
– critical for successful test automation implementation
– among the main reasons why record-n-playback is not reliable
• In Context-Sensitive mode
– Examples: (operations)
•
•
•
•
wait for a window to appear
wait for a bitmap to refresh
wait for an object property
wait for a specific amount of time
• In Analog mode
– Examples: (operations)
• wait for a window bitmap to appear / refresh
• wait for a specific amount of time
Window Synchronization
invoke_application(“Notepad”,””, “c:\\temp”, SW_SHOW);
set_window (”Login”, 10);
edit_set(“User ID:”, “guest”);
edit_set(“Password:”, “mercury”);
button_press(“OK”);
set_window
Waits for the specified window to appear onscreen. If the
window appears before the timeout, the script immediately
proceeds to the next line.
Bitmap Synchronization
button_press(“Submit”);
obj_wait_bitmap (”Object”,”Img1”,10);
button_press(“Confirm”);
win_wait_bitmap (”Screen", "Img2", 10, 209, 170, 81, 20);
win_wait_bitmap, obj_wait_bitmap
Waits for a bitmap to be drawn onscreen. Bitmap may be
complete window/object or partial area. Bitmap is captured
and stored during recording.
Object Synchronization
win_wait_info(“Payment”, “enabled”, 0, 30);
button_press(“Confirm Payment”);
obj_wait_info (”StatusBar","label", “Complete...", 20);
win_wait_info, obj_wait_info
Waits for a window or object attribute to reach a specified
value.
Time Synchronization
wait(10);
wait
Waits for the specified amount of time.
Analog Synchronization
win_wait_bitmap(”Win_1",“icon_editor", 4, 855, 802, 292, 88);
type("<t6>ls \-l <kReturn>");
win_wait_bitmap(“”,“icon_editor", 4, 855, 802, 292, 88);
win_wait_bitmap
Waits for a window bitmap to appear onscreen. Bitmap may
be full/partial window area. Optionally, bitmap filename may
be omitted, thus synchronizing on window refresh/redraw.
In analog mode, this is invoked using softkeys.
Synchronization Controls
GUI Map
•
•
The GUI Map is an ASCII file that stores a unique description for
each application window/object
These unique descriptors act as a liaison between the tested
application and the automated script
?
GUI Map Basics
• The GUI Map is created automatically through the
recording process (RapidTest Script Wizard, GUI Spy “Learn” and script recording),
but can also be built manually
• WinRunner test scripts depend on this information to
simplify maintenance
– Each release of a tested application contains changes that however
subtle may affect the object properties within that application. This can
have the effect of breaking scripts that may or may not appear
unchanged. The GUI Map helps to mitigate this situation by providing a
centralized location where changes are made rather than modifying
individual scripts accessing those object(s) that might have been
changed by the latest release of the AUT.
GUI Map Basics
• Objects in the GUI Map are organized with each Window
object encapsulating all the other object types within
each specific window object
• GUI Map files can either be test script specific or global in
nature
– Just as it is desirable to use a centralized source for data driven testing,
so it is usually most desirable to have centralized GUI Map files serving
more than 1 automated test script. This helps prevent duplication of GUI
Map objects as well as simplifying maintenance when the GUI Map
needs to be updated
– Having script specific GUI Maps allow greater independence for each
automated script which may be useful and make automation easier in
some circumstances.
– The tradeoff for using non-global GUI Map files is that when maintenance
for an object is required, it would require changing every GUI Map file
containing a physical description for that object.
– Too many objects in a few GUI Map files may slow down performance
GUI Map Basics
•
(*)
Recording
– object is stored in GUI map first
– object is assigned a name
– based on object class and name, statement is
generated in WinRunner script
GUI Map Basics
•
Replay
– WinRunner searches the current window context in
the GUI map (set_window)
– WinRunner searches window for the object name
– Physical description is used to locate object
GUI Map Tips
(*)
• Learn GUI Map
– use the “Learn” feature in the GUI map
editor to store all the objects in a window all
at once
– Instead of recording individual objects
piecemeal as a record session is
progressing, every encapsulated object
within another object can be recorded at
one time, and ready to be accessed
GUI Map Tips
(*)
• Use the GUI Spy
– used to view object properties
– useful for debugging purposes
• Use regular expressions
–
–
–
–
increases robustness of the GUI Map
helps recognize transient object states
simplifies maintenance
Can be used in scripts and custom
functions as well
Regular Expressions
•
.
[0-9]
[A-Z]
[a-z]
[mf]
^
|
&
*
.*
Regular Expressions are wildcards
any single character
any single numeral
any single uppercase letter
any single lowercase letter
a single letter either “m” or “f”
NOT boolean
OR boolean
AND boolean
any repetition of the previous character or expression
any string of any character
Eg. “practicefile.txt - Notepad” …which regular expression is equivalent to this string?
a) “.*file.t.t - Notepad”
b) “[p|t]racticefile. - notepad”
c) “practi.txt – Notepa[de]”
d) “[p&t]racticefile.txt …otepad”
e) “[p|t]ractice…..txt.* [A-Z][g-t].*[darn]”
Answer: The answer is given on the next page in the upper-right hand corner
Regular Expressions
•
.
[0-9]
[A-Z]
[a-z]
[mf]
^
|
&
*
.*
[answer: a and d]
Regular Expressions are wildcards
any single character
any single numeral
any single uppercase letter
any single lowercase letter
a single letter either “m” or “f”
NOT boolean
OR boolean
AND boolean
any repetition of the previous character or expression
any string of any character
Eg. “WinRunner 101” …which regular expression is equivalent to this string?
a) “[a-z]in[r]u.*01”
b) “Wi..[a-s].*[1-9]”
c) “.*[m-z]..[m-o][aklntv].*”
d) “.*[azR]..[m-o][er ].*”
Answer: The answer is given on the next page in the upper-right hand corner
Regular Expressions
•
.
[0-9]
[A-Z]
[a-z]
[mf]
^
|
&
*
.*
[answer: c and d]
Regular Expressions are wildcards
any single character
any single numeral
any single uppercase letter
any single lowercase letter
a single letter either “m” or “f”
NOT boolean
OR boolean
AND boolean
any repetition of the previous character or expression
any string of any character
Eg. “$30,000,000 lottery pot” …which regular expression is equivalent to this number?
a) “$[2-8].*0…^[a-z]”
b) “$[2345].*0.*[a-z]”
c) “..0.*[aeiou]ey.* pot”
d) “.*lottery.”
Answer: The answer is given on the next page in the upper-right hand corner
GUI Map Tips
•
[answer: b]
Save the GUI file
– For reuse in future iterations of the automated
test
– To possibly be used in different automated
tests
GUI Map Tips
•
close any previously opened GUI files before loading
– eliminates conflicts - GUI map files containing duplicate objects cannot be
loaded
•
modify the script to automatically load and use the GUI Map file you’ve
created
TSL (Test Script Language)
• TSL is a C-like language
– High-level proprietary programming language designed for test
automation
– procedural language
• Full programming support
– variables, arrays, functions
– regular expressions
– control flow, decision logic, looping
Built-in TSL Functions
• TSL provides a comprehensive library of hundreds of
built-in functions to simplify test creation
–
–
–
–
–
–
window/object functions
environment functions
reporting functions
database query functions
file/spreadsheet functions
Win32 functions
• WinRunner provides a graphical function browser to
assist you
– Function Generator
Function Generator
Language Syntax
*** Same syntax as in standard C ***
Variables
• Basic Rules
–
–
–
–
–
–
–
do not need to be declared / defined
specific data types are not explicitly defined
case sensitive
first letter must be a character or underscore
cannot be a reserved word
by default all variables are local (static)
can also be public and/or const
• Arrays
– single dimension: cust[1], cust[2], cust[3]
– multi-dimension: address[1,1], address[1,2]
– Can be indexed with number
• address[1], address[2]
– Can be indexed with strings (associative)
• address[“John”], address[“Mary”]
Operators
•
•
•
•
•
Math
+ - * / ^ % ++ -Logical
&& || !
Relational
== != >= <= > <
Assignment
= += -= *= /= ^= %=
Concatenation
&
Test Verification
• Enhancing a test script to verify data onscreen
–
–
–
–
check objects’ values / states
check images
check text
check the database
• Context-Sensitive verification
• Analog verification
Checkpoints
Definition: A checkpoint is a WinRunner statement which determines whether a
particular object property is as expected. This is determined by either comparing
previously captured results to current results or defining an expected result to compare
to the actual result. Expected results are captured when running in “Update” mode.
• GUI
–
–
–
–
single object / single property
single object or window / multiple properties
multiple objects / multiple properties
stores expected results in “checklists”
• Bitmap
–
–
for object / window, screen area
dependant on screen resolution, color depth, font configuration
• Text
–
–
uses text recognition
Fonts Expert (if text recognition does not work)
• Database
GUI Checkpoints
(skim)
set_window(“Insert Order”);
button_press(“OK”);
obj_check_gui (”ProgressBar",”list1.ckl”, “gui1”,25);
set_window(“Reports”, 10);
menu_select_item(“Analysis;Reports”);
win_check_gui (“Reports”, “list2.ckl”, ”gui2”, 4);
win_check_gui, obj_check_gui
Verifies that object(s) properties match the expected results.
Properties to verify are saved in a checklist. The checklist is
used to capture the expected results during recording, and is
also used to capture the actual results for comparison.
Bitmap Checkpoints
(skim)
set_window(“Insert Order”);
button_press(“OK”);
obj_check_bitmap ( ”ProgressBar",”Img1",25);
obj_check_bitmap ( ”StatusBar",”Img2",25, 0, 10, 50, 10);
set_window(“Reports”, 10);
win_check_bitmap( “Reports”, “Img3”, 4);
win_check_bitmap, obj_check_bitmap
Verifies a object/window bitmap matches its expected image.
Bitmap may be full/partial window area.
If a partial area is selected, the coordinates of the partial area
are captured (relative to the object).
Text Checkpoints
(skim)
obj_get_text( “Statusbar95”, text );
if ( text == “Insert Done…”)
tl_step(“Check statusbar”, PASS, “Insert was completed”);
else
tl_step(“Check statusbar”, FAIL, “Insert failed”);
obj_get_text
retrieves the text within an area (absolute coordinates)
tl_step
logs message to the WinRunner report and changes test
status
Error Handling
• addresses specific “predictable” errors
– Using “error-handler” routines
• error codes
– most TSL statements have a return code
– this is used as a basis for error-checking
• running in Batch Mode
– ignores all script errors, continues execution
– also ignores breakpoints and pause statements
• break when verification fails
– halts the test if a verification fails in “Verify” mode
• Initializing and closing subroutines
– Prevents cascade errors
– Allows test case independence during batch runs
Error Handling
Exception/Recovery Handling
(*)
• Unexpected errors during replay
– unlike error-handling, these can appear at any time when running a
script
• WinRunner provides a mechanism to trap and handle
exceptions
– popup exceptions
• popup windows
– object exceptions
• object property value changes
– TSL exceptions
• TSL error codes
Functions and Libraries
• simplifies building test frameworks
– application-specific functions
– general-purpose functions
– greater modularity
• can be stored in a script
– compiled module (function library)
– can be loaded as part of startup or initialization script and available
globally
• facilitates data-driven testing
– data-driven testing is where data retrieved externally from the test being
executed drives the test rather than using hard-coded data within each
test case. Using application specific custom functions and scripts helps
further the benefits of data-driven testing.
Functions
public function flight_login( in uid, in passwd )
{
set_window( “Login”, 10);
edit_set( “Agent Name:”, uid );
edit_set(“Password:”, passwd );
button_press(“OK”);
}
function type
• public (global)
• static (local)
function name
• first character cannot be numeric
• parameters can be overloaded
Functions
public function flight_login( in uid, in passwd )
{
set_window( “Login”, 10);
edit_set( “Agent Name:”, uid );
edit_set(“Password:”, passwd );
button_press(“OK”);
}
function parameters
• in
• out
• inout
arrays must be indicated with []
Functions
public function flight_login( in uid, in passwd )
{
auto x;
set_window( “Login”, 10);
edit_set( “Agent Name:”, uid );
edit_set(“Password:”, passwd );
button_get_info(“OK”, “state”,variables
x );
if ( x == “ON”)
button_press(“OK”);
}
unlike scripts, variables must be
declared before using
• auto
• static
• extern
Compiled Modules
Compiled Modules
3rd Party Support
• extensive 3rd party public libraries
– “CSO” TSL libraries
– “WrExtra” DLL encapsulated TSL callable functions
– Many other public libraries…
• ability to access functions/capabilities in other
programming languages for use in WinRunner either
directly or indirectly
• Easy method of programming DLLs with functions that
can be imported for use with TSL
Calling Test Scripts
(*)
• call(), call_close() allows shelling out to and executing
code in other scripts
• allows greater modularity
• Does not need to be loaded prior to use like custom
functions need to be
Support
• Some testing environments are friendlier towards
automated testing tools than others
– Good
– Bad
– Ugly
• Out-of-the-Box support
–
–
–
–
–
–
Visual C/C++, most C or C++ programs
Visual Basic
PowerBuilder
Delphi
ActiveX
Terminal Emulators (WinRunner/2000 only)
Support
• Custom environments poorly programmed
• Custom objects (3rd party APIs)
– Unrecognized objects
– Every object is displayed as a generic object
– difficult to map to a class and work reliably
• Virtual Object Wizard is unreliable (not
recommended to use)
Conclusion
It is obvious at this point that Test Automation is not as simple as recordn-playback regardless of how good the test automation tool may be. The
more powerful the test automation tool, either greater rewards will be
reaped or more pitfalls will be encountered. It all depends on the skill and
training of the automation specialist. Hopefully, this presentation has
provided a grounding in the basics that will be required to effectively
implement test automation with WinRunner.