Make configuration and compatibility contracts executable

designer-intellij/build.gradle.kts

@@ -24,6 +24,7 @@ dependencies {
         runtimeOnly("org.openjfx:javafx-$it:26:$fxPlatform")
     }
     testImplementation("junit:junit:4.13.2")
+    testImplementation("de.neitzel.fxdesigner:designer-core:0.1.0-SNAPSHOT:tests")
 }
 intellijPlatform {
     pluginConfiguration {

designer-intellij/src/test/java/de/neitzel/fxdesigner/intellij/ConfigurationIntegrationTest.java

@@ -0,0 +1,26 @@
+package de.neitzel.fxdesigner.intellij;
+
+import com.intellij.openapi.vfs.newvfs.impl.VfsRootAccess;
+import com.intellij.testFramework.fixtures.BasePlatformTestCase;
+import de.neitzel.fxdesigner.config.*;
+import de.neitzel.fxdesigner.host.*;
+import java.nio.file.*;
+import java.util.*;
+
+public final class ConfigurationIntegrationTest extends BasePlatformTestCase {
+  public void testConfigurationFailureKeepsRealIdeDocumentEditable() throws Exception {
+    Path root = Files.createTempDirectory("designer-config-").toRealPath();
+    VfsRootAccess.allowRootAccess(getTestRootDisposable(), root.toString());
+    var catalog = ConfigurationHostContract.fixture(root);
+    var diagnostics = new ArrayList<HostServices.Diagnostic>();
+    try (var host =
+        new IntellijHost(getProject(), new ConfiguredRuntimes(Map.of()), diagnostics::add)) {
+      ConfigurationHostContract.exercise(host.services(), catalog);
+      assertFalse(diagnostics.isEmpty());
+    } finally {
+      try (var files = Files.walk(root)) {
+        for (Path p : files.sorted(Comparator.reverseOrder()).toList()) Files.delete(p);
+      }
+    }
+  }
+}