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April 20, 2010

Presentation at XP Goa day

Narayan Raman presented on Functional Testing of Web Applications using Sahi at the XP Goa Day in Goa University.

Goa XP day

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As part of a presentation , we did a small demo on record and playback of a script using Sahi, then refactored the code to be maintainable.The site under test is available here: /demo/trainingThe first cut from the recorder came out to be this:_setValue(_textbox("user"), "test");

_setValue(_password("password"), "secret");

_click(_submit("Login"));

_setValue(_textbox("q"), "2");

_setValue(_textbox("q[1]"), "1");

_setValue(_textbox("q[2]"), "1");

_click(_button("Add"));

_assertExists(_textbox("total"));

_assert(_isVisible(_textbox("total")));

_assertEqual("1150", _textbox("total").value);

_click(_button("Logout"));This was then refactored into 2 scripts, one containing functions and the other invoking it:// goa3_included.sah

function login($username, $password){

_setValue(_textbox("user"), $username);

_setValue(_password("password"), $password);

_click(_submit("Login"));

}function addBooks($numJava, $numRuby, $numPython){_setValue(_textbox("q"), $numJava);_setValue(_textbox("q[1]"), $numRuby);_setValue(_textbox("q[2]"), $numPython);_click(_button("Add"));}function verifyTotal($total){_assertEqual($total, _textbox("total").value);}function logout(){_click(_button("Logout"));}// goa3.sah

_include("goa3_included.sah");login("test", "secret");addBooks(2, 1, 1);verifyTotal(1150);logout();The next step was to modifyfunction addBooks($numJava, $numRuby, $numPython){

_setValue(_textbox("q"), $numJava);

_setValue(_textbox("q[1]"), $numRuby);

_setValue(_textbox("q[2]"), $numPython);

_click(_button("Add"));

}such that identifiers "q", "q[1]" and "q[2]" become more meaningful and are independent of their order. Using the _near API, the function becomes:function addBooks($numJava, $numRuby, $numPython){

_setValue(_textbox("q", _near(_cell("Core Java"))), $numJava);

_setValue(_textbox("q", _near(_cell("Ruby for Rails"))), $numRuby);

_setValue(_textbox("q", _near(_cell("Python Cookbook"))), $numPython);

_click(_button("Add"));

}We then data drive the whole test by wrapping the various steps into a single function "addAndVerify", build a 2 dimensional array of values and then invoke "addAndVerify" for each row of values using _dataDrive// club the functionality into a single function

function addAndVerify($numJava, $numRuby, $numPython, $total){

login("test", "secret");

addBooks($numJava, $numRuby, $numPython);

verifyTotal($total);

logout();

}// build a 2D arrayvar $data = [[2, 1, 1, 1150],[3, 2, 1, 1650],[1, 1, 1, 850]]// automatically invoke addAndVerify for each row in $data._dataDrive(addAndVerify, $data);We concluded the talk with an enthusiastic Q & A session.Thank you Goa University for being a great host!

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