Using unmerged tree

Code

@Composable
fun UsingUnMergedTreeDemo() {

    Button(
        modifier = Modifier.semantics { contentDescription = "our tag" },
        onClick = {}) {
        Text(text = "Hello")
        Text(text = "World")
    }

}

Test

class UsingUnMergedTreeDemoKtTest {

    @get:Rule
    val composeTestRule = createComposeRule()

    @Test
    fun mergedTreeLog() {

        composeTestRule.setContent {
            UsingUnMergedTreeDemo()
        }

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

    }

    @Test
    fun unMergedTreeLog() {

        composeTestRule.setContent {
            UsingUnMergedTreeDemo()
        }

        composeTestRule.onRoot(useUnmergedTree = true).printToLog("TAG")

    }

}

Output

MERGED TREE

printToLog:
                                                                                                    Printing with useUnmergedTree = 'false'
                                                                                                    Node #1 at (l=0.0, t=66.0, r=325.0, b=198.0)px
                                                                                                     |-Node #2 at (l=0.0, t=77.0, r=325.0, b=187.0)px
                                                                                                       Focused = 'false'
                                                                                                       Role = 'Button'
                                                                                                       ContentDescription = '[our tag]'
                                                                                                       Text = '[Hello, World]'
                                                                                                       Actions = [OnClick, RequestFocus, SetTextSubstitution, ShowTextSubstitution, ClearTextSubstitution, GetTextLayoutResult]
                                                                                                       MergeDescendants = 'true'

UN-MERGED TREE

printToLog:
                                                                                                    Printing with useUnmergedTree = 'true'
                                                                                                    Node #1 at (l=0.0, t=66.0, r=325.0, b=198.0)px
                                                                                                     |-Node #2 at (l=0.0, t=77.0, r=325.0, b=187.0)px
                                                                                                       Focused = 'false'
                                                                                                       Role = 'Button'
                                                                                                       ContentDescription = '[our tag]'
                                                                                                       Actions = [OnClick, RequestFocus]
                                                                                                       MergeDescendants = 'true'
                                                                                                        |-Node #4 at (l=66.0, t=106.0, r=158.0, b=158.0)px
                                                                                                        | Text = '[Hello]'
                                                                                                        | Actions = [SetTextSubstitution, ShowTextSubstitution, ClearTextSubstitution, GetTextLayoutResult]
                                                                                                        |-Node #5 at (l=158.0, t=106.0, r=259.0, b=158.0)px
                                                                                                          Text = '[World]'
                                                                                                          Actions = [SetTextSubstitution, ShowTextSubstitution, ClearTextSubstitution, GetTextLayoutResult]