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About

The tests use Intern.

There are unit tests and functional tests.

The unit tests test the was-the-site-loaded-from-cache decision making, and the functional tests are used to capture Resource Timing data from a dummy site (which can be used as input to the the was-the-site-loaded-from-cache decision making code).

The functional test will use the URL set by config.urlToCaptureEntriesFor in the test/intern/intern-functional.js file and:

  • Open the URL, capture the Performance.getEntriesByType("resource") data using the tag first.
  • Call window.location.reload(true) in the browser to simulate a Ctrl+R force refresh (to send If-Modified-Since HTTP requests). Capture the Performance.getEntriesByType("resource") data again using the tag reload.
  • Open the URL again to simulate a repeat visit (resources should come from browser cache). Capture the Performance.getEntriesByType("resource") data again using the tag revisit.

Running

Start the capture server.

Start Selenium. The tests require Selenium to be running. This can either be a local server, or something like Sauce Labs.

Run the tests:

node node_modules/intern/bin/intern-runner.js config=test/config/intern-functional

To take resource timings from a different URL, pass urlToCaptureEntriesFor at the command line:

node node_modules/intern/bin/intern-runner.js config=test/config/intern-functional urlToCaptureEntriesFor=http://www.example.com/the/page/

Unit Tests

Use intern-client.js (not intern-runner.js) and intern-base (not intern-functional).

node node_modules/intern/bin/intern-client.js config=test/config/intern-base