IDEA-67093 Tab to accept code completion in Groovy replaces too much or not enough

platform/lang-impl/src/com/intellij/codeInsight/completion/actions/BaseCodeCompletionAction.java

@@ -42,6 +42,7 @@ public abstract class BaseCodeCompletionAction extends AnAction implements HintM
   protected BaseCodeCompletionAction(CompletionType completionType) {
     myCompletionType = completionType;
     setEnabledInModalContext(true);
+    setInjectedContext(true);
   }
 
   public void actionPerformed(AnActionEvent e) {

plugins/groovy/test/org/jetbrains/plugins/groovy/completion/InjectedGroovyTest.groovy

@@ -0,0 +1,46 @@
+/*
+ * Copyright 2000-2011 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 org.jetbrains.plugins.groovy.completion
+
+import com.intellij.psi.util.PsiTreeUtil
+import com.intellij.psi.xml.XmlText
+import com.intellij.testFramework.fixtures.LightCodeInsightFixtureTestCase
+import org.intellij.plugins.intelliLang.inject.TemporaryPlacesRegistry
+import org.jetbrains.plugins.groovy.GroovyFileType
+
+/**
+ * @author peter
+ */
+class InjectedGroovyTest extends LightCodeInsightFixtureTestCase {
+
+  public void testTabMethodParentheses() {
+    myFixture.configureByText("a.xml", """<groovy>
+String s = "foo"
+s.codePo<caret>charAt(0)
+</groovy>""")
+
+    def host = PsiTreeUtil.findElementOfClassAtOffset(myFixture.file, myFixture.editor.caretModel.offset, XmlText, false)
+    TemporaryPlacesRegistry.getInstance(project).getLanguageInjectionSupport().addInjectionInPlace(GroovyFileType.GROOVY_LANGUAGE, host);
+
+    myFixture.completeBasic()
+    myFixture.type('\t')
+    myFixture.checkResult("""<groovy>
+String s = "foo"
+s.codePointAt(<caret>0)
+</groovy>""")
+  }
+
+}