mad testing: introduce StripTestDataMarkup action

java/java-tests/testSrc/com/intellij/java/propertyBased/JavaCodeInsightSanityTest.java

@@ -37,6 +37,7 @@ public class JavaCodeInsightSanityTest extends LightCodeInsightFixtureTestCase {
     Function<PsiFile, Generator<? extends MadTestingAction>> fileActions = file ->
       Generator.anyOf(InvokeIntention.randomIntentions(file, new JavaIntentionPolicy()),
                       InvokeCompletion.completions(file, new JavaCompletionPolicy()),
+                      Generator.constant(new StripTestDataMarkup(file)),
                       DeleteRange.psiRangeDeletions(file));
     PropertyChecker.forAll(actionsOnJavaFiles(fileActions)).shouldHold(FileWithActions::runActions);
   }

platform/testFramework/testSrc/com/intellij/testFramework/propertyBased/FileWithActions.java

@@ -35,7 +35,7 @@ public class FileWithActions {
     myActions = actions;
   }
 
-  PsiFile getPsiFile() {
+  public PsiFile getPsiFile() {
     return myFile;
   }
 

platform/testFramework/testSrc/com/intellij/testFramework/propertyBased/StripTestDataMarkup.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2000-2017 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.testFramework.propertyBased;
+
+import com.intellij.openapi.command.WriteCommandAction;
+import com.intellij.openapi.editor.Document;
+import com.intellij.openapi.util.text.StringUtil;
+import com.intellij.psi.PsiFile;
+import com.intellij.testFramework.ExpectedHighlightingData;
+import com.intellij.testFramework.PsiTestUtil;
+
+/**
+ * @author peter
+ */
+public class StripTestDataMarkup implements MadTestingAction {
+  private final PsiFile myFile;
+
+  public StripTestDataMarkup(PsiFile file) {
+    myFile = file;
+  }
+
+  @Override
+  public void performAction() {
+    WriteCommandAction.runWriteCommandAction(myFile.getProject(), () -> {
+      Document document = myFile.getViewProvider().getDocument();
+      new ExpectedHighlightingData(document, true, true, true, true, myFile).init();
+      removeMarkup(document, "<caret>");
+      removeMarkup(document, "<ref>");
+      removeMarkup(document, "<selection>");
+      removeMarkup(document, "</selection>");
+    });
+    PsiTestUtil.checkPsiStructureWithCommit(myFile, PsiTestUtil::checkStubsMatchText);
+  }
+
+  private static void removeMarkup(Document document, String marker) {
+    document.setText(StringUtil.replace(document.getText(), marker, ""));
+  }
+}