fix: race conditions in editor tests

Author: slisson

.gitignore

@@ -10,3 +10,6 @@ kotlin_gen
 **/.ideaconfig
 **/.mpsconfig
 node_modules
+/.intellijPlatform
+/.kotlin
+/version.txt

kernelf-editor/src/commonTest/kotlin/org/modelix/editor/kernelf/CodeCompletionTest.kt

@@ -120,7 +120,7 @@ class CodeCompletionTest {
     fun actionsOnNameProperty() =
         runCompletionTest {
             val namePropertyCell = editor.getRootCell().descendants().find { it.getVisibleText() == "stringTests" }!!
-            editor.changeSelection(CaretSelection(editor, namePropertyCell.layoutable()!!, 0))
+            editor.changeSelectionLater(CaretSelection(editor, namePropertyCell.layoutable()!!, 0))
 
             val firstLeaf = namePropertyCell.firstLeaf()
             assertEquals("stringTests", firstLeaf.getVisibleText())

projectional-editor-ssr-mps-languages/build.gradle.kts

@@ -24,6 +24,7 @@ dependencies {
     testImplementation(project(":projectional-editor"), excludeMPSLibraries)
     testImplementation(libs.modelix.mps.model.adapters, excludeMPSLibraries)
     testImplementation(libs.playwright, excludeMPSLibraries)
+    testImplementation(coreLibs.kotlin.coroutines.test, excludeMPSLibraries)
     modelAdaptersPlugin(libs.modelix.mps.model.adapters.plugin)
 }