Defer level validation while editors are open

app/src/androidTest/java/solutions/tretter/githugandroid/GitRepositoryRuntimeInstrumentedTest.kt

@@ -3,6 +3,7 @@ package solutions.tretter.githugandroid
 import androidx.compose.ui.test.assertIsDisplayed
 import androidx.compose.ui.test.hasText
 import androidx.compose.ui.test.junit4.createEmptyComposeRule
+import androidx.compose.ui.test.onAllNodesWithTag
 import androidx.compose.ui.test.onNodeWithTag
 import androidx.compose.ui.test.performSemanticsAction
 import androidx.compose.ui.test.performClick
@@ -84,6 +85,25 @@ class GitRepositoryRuntimeInstrumentedTest {
         }
     }
 
+    @Test
+    fun squashLevelWaitsForFinalEditorBeforeCompleting() {
+        launchFreshApp().use {
+            selectLevel(squashLevel())
+
+            submitTerminalCommand("git rebase -i HEAD~4")
+            waitForGitEditorPath(".git/rebase-merge/git-rebase-todo")
+            replaceGitEditorContent(squashRebaseTodo(currentGitEditorContent()))
+            composeRule.onNodeWithTag("git-message-editor-save").performClick()
+
+            waitForGitMessageEditor()
+            composeRule.onNodeWithTag("exercise-title-${squashLevel().id}").assertIsDisplayed()
+
+            composeRule.onNodeWithTag("git-message-editor-save").performClick()
+
+            waitForLevelCompletion(nextLevel = initLevel())
+        }
+    }
+
     @Test
     fun configLevelCompletesThroughUiWithArbitraryValues() {
         launchFreshApp().use {
@@ -182,12 +202,28 @@ class GitRepositoryRuntimeInstrumentedTest {
         composeRule.onNodeWithTag("git-message-editor-path").assertIsDisplayed()
     }
 
+    private fun waitForGitMessageEditor() {
+        composeRule.waitUntil(timeoutMillis = 30_000) {
+            composeRule.onAllNodesWithTag("git-message-editor-content").fetchSemanticsNodes().isNotEmpty()
+        }
+        composeRule.onNodeWithTag("git-message-editor-content").assertIsDisplayed()
+    }
+
     private fun currentGitEditorContent(): String {
         val node = composeRule.onNodeWithTag("git-message-editor-content").fetchSemanticsNode()
         return node.config.getOrNull(SemanticsProperties.EditableText)?.text
             ?: error("Expected Git editor content semantics")
     }
 
+    private fun squashRebaseTodo(content: String): String {
+        return content
+            .lineSequence()
+            .mapIndexed { index, line ->
+                if (index > 0 && line.startsWith("pick ")) line.replaceFirst("pick ", "squash ") else line
+            }
+            .joinToString("\n")
+    }
+
     private fun replaceGitEditorContent(content: String) {
         composeRule.onNodeWithTag("git-message-editor-content")
             .performSemanticsAction(SemanticsActions.SetText) { setText ->