How to test Drawable in Jetpack Compose

I have a Box inside which I am adding image with drawable content. How can I write UI test for checking drawable is visible or not?

Solution

You can access the Semantic tree of a compose node, and determine the values of different things.

Check this link for the specifics about how to access and display the Semantic tree in your logcat:

You will use something like this:

composeTestRule.onNode(<<SemanticsMatcher>>, useUnmergedTree = false): SemanticsNodeInteraction

then:

composeTestRule.onRoot().printToLog("TAG")

to print the contents to your logcat