How to write test-case for Scala.js application
source link: https://blog.knoldus.com/how-to-write-test-case-for-scala-js-application/
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How to write test-case for Scala.js application
Few months ago, I created a web application ‘Weather Report‘, based on Scala.js. In this blog, I have explained how we can test our Scala.js application.
Since I am still exploring it, so I took help from scalajs-tutorial. I have used µTest as testing library.
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// uTest settings
libraryDependencies += "com.lihaoyi" %%% "utest" % "0.3.0" % "test"
testFrameworks += new TestFramework("utest.runner.Framework")Here is example of test-cases:
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def tests = TestSuite {"Page should contain search text box with button." - {assert(jQuery("#name").value() == "Delhi")val button = jQuery("#submit")assert(button.length == 1)
}
"Page should display weather report for default city." - {val button = jQuery("#submit")assert(jQuery("#cityName:contains('Delhi,IN')").length == 0)button.click()
assert(jQuery("#cityName:contains('Delhi,IN')").length == 1)assert(jQuery("#geocoords:contains('[77.22, 28.67]')").length == 1)}
"Page should clean before search weather report for a new city." - {jQuery("#name").value("Newyork")val button = jQuery("#submit")assert(jQuery("#cityName:contains('New York,US')").length ==0)button.click()
assert(jQuery("#cityName:contains('Delhi,IN')").length ==0)assert(jQuery("#cityName:contains('New York,US')").length ==1)assert(jQuery("#geocoords").value() != "[-74.01, 40.71]")}
}
In the above example, we can see verified triggered event on button click. This is a sample test-case. We can add more scenario depends on application. You can find complete working and tested code here:- ScalaJs_Weather_Report
Now pull the code and run `sbt test`.
Written by Ayush Mishra
Ayush is the Sr. Lead Consultant @ Knoldus Software LLP. In his 10 years of experience he has become a developer with proven experience in architecting and developing web applications. Ayush has a Masters in Computer Application from U.P. Technical University,
Ayush is a strong-willed and self-motivated professional who takes deep care in adhering to quality norms within projects. He is capable of managing challenging projects with remarkable deadline sensitivity without compromising code quality.
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