Node assertions?

[wimdeblauwe]

It would be nice to be able to do things like:

NodeAssert.assertThat(find("#startMachineButton")).isDisabled();
NodeAssert.assertThat(find("#statusText")).isText().hasText("Machine stopped");
NodeAssert.assertThat(find("#startMachineButton")).isButton().hasText("Start");

(Note that the find method is a little helper method in my TestFX bases abstract base class I use in my UI tests to find a Node)

Are there any plans to provide node assertions?

[manuel-mauky]

Hi,
yes this sounds like a great idea. I hadn't had the time to implement something like this in the past.
One of the problems was what you solved with your find method: assertThat("#statusText") is actually a string matcher and not a node matcher. For such situations Hamcrest (which is used by TestFX) works better.
However, your example with the find method looks good to me. If you could contribute the find-method we could start to develop a NodeAssert class.

[manuel-mauky]

I assume the find method is heavily dependent on TestFX, isn't it?
This would be a problem because I want assertj-javafx to be independent from TestFX.

[wimdeblauwe]

The asserts only depend on JavaFX Node, so that could be part of this library. How to find a Node is dependent on the testing framework used. We could just document how to do it with various frameworks. So for instance, show the code for the find method that uses TestFX.