EnterInStringLiteralHandler should use language-specific option for operation sign (fixes IDEA-114783), [CR-IC-5159]

java/java-tests/testData/codeInsight/editorActions/stringLiteral/enter.java

@@ -0,0 +1,5 @@
+public class Shakespeare {
+  void quote() {
+    String theQuote = "A fool thinks himself to be wise, <caret>but a wise man knows himself to be a fool.";
+  }
+}

java/java-tests/testData/codeInsight/editorActions/stringLiteral/enterOpSignOnNextLine.java

@@ -0,0 +1,5 @@
+public class Shakespeare {
+  void quote() {
+    String theQuote = "A fool thinks himself to be wise, <caret>but a wise man knows himself to be a fool.";
+  }
+}

java/java-tests/testData/codeInsight/editorActions/stringLiteral/enterOpSignOnNextLine_after.java

@@ -0,0 +1,6 @@
+public class Shakespeare {
+  void quote() {
+    String theQuote = "A fool thinks himself to be wise, " 
+            + "<caret>but a wise man knows himself to be a fool.";
+  }
+}

java/java-tests/testData/codeInsight/editorActions/stringLiteral/enter_after.java

@@ -0,0 +1,6 @@
+public class Shakespeare {
+  void quote() {
+    String theQuote = "A fool thinks himself to be wise, " +
+            "<caret>but a wise man knows himself to be a fool.";
+  }
+}

java/java-tests/testSrc/com/intellij/codeInsight/editorActions/JavaEnterInStringLiteralTest.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2000-2014 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.codeInsight.editorActions;
+
+import com.intellij.lang.java.JavaLanguage;
+import com.intellij.psi.codeStyle.CodeStyleSettingsManager;
+import com.intellij.psi.codeStyle.CommonCodeStyleSettings;
+import com.intellij.testFramework.EditorTestUtil;
+import com.intellij.testFramework.LightCodeInsightTestCase;
+
+/**
+ * @author Rustam Vishnyakov
+ */
+public class JavaEnterInStringLiteralTest extends LightCodeInsightTestCase {
+  private static final String BASE_PATH = "/codeInsight/editorActions/stringLiteral/";
+
+  public void testEnter() {
+    doTest();
+  }
+
+  public void testEnterOpSignOnNextLine() {
+    CommonCodeStyleSettings settings = CodeStyleSettingsManager.getSettings(getProject()).getCommonSettings(JavaLanguage.INSTANCE);
+    boolean opSignOnNextLine = settings.BINARY_OPERATION_SIGN_ON_NEXT_LINE;
+    try {
+      settings.BINARY_OPERATION_SIGN_ON_NEXT_LINE =  true;
+      doTest();
+    }
+    finally {
+      settings.BINARY_OPERATION_SIGN_ON_NEXT_LINE = opSignOnNextLine;
+    }
+  }
+
+  private void doTest() {
+    String testName = getTestName(true);
+    configureByFile(BASE_PATH + testName + ".java");
+    EditorTestUtil.performTypingAction(getEditor(), '\n');
+    checkResultByFile(BASE_PATH + testName + "_after.java");
+  }
+}