compound filter from filters chain (IDEA-146147)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/mergeFilter/afterComments.java

@@ -0,0 +1,11 @@
+// "Merge filter's chain" "true"
+
+import java.util.stream.Stream;
+class Test {
+  void foo(Stream<String> stringStream ) {
+    stringStream.filter(name -> name.startsWith("A") && name.//comment2
+                    length() > 1//comment
+/*comment1*/
+    ).findAny();
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/mergeFilter/afterSimple.java

@@ -0,0 +1,8 @@
+// "Merge filter's chain" "true"
+
+import java.util.stream.Stream;
+class Test {
+  void foo(Stream<String> stringStream ) {
+    stringStream.filter(name -> name.startsWith("A") && name.length() > 1).findAny();
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/mergeFilter/beforeComments.java

@@ -0,0 +1,10 @@
+// "Merge filter's chain" "true"
+
+import java.util.stream.Stream;
+class Test {
+  void foo(Stream<String> stringStream ) {
+    stringStream.filt<caret>er(name -> name.startsWith("A"))//comment
+      .filter(a -> a.//comment2
+        length() > 1 /*comment1*/).findAny();
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/mergeFilter/beforeIncomplete.java

@@ -0,0 +1,8 @@
+// "Split into filter's chain" "false"
+
+import java.util.stream.Stream;
+class Test {
+  void foo(Stream<String> stringStream ) {
+    stringStream.fi<caret>lter(name -> name.startsWith("A")).filter().findAny();
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/mergeFilter/beforeNotNeighbour.java

@@ -0,0 +1,8 @@
+// "Merge filter's chain" "false"
+
+import java.util.stream.Stream;
+class Test {
+  void foo(Stream<String> stringStream ) {
+    stringStream.fil<caret>ter(name -> name.startsWith("A")).map(a -> a).filter(b -> true);
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/mergeFilter/beforeSimple.java

@@ -0,0 +1,8 @@
+// "Merge filter's chain" "true"
+
+import java.util.stream.Stream;
+class Test {
+  void foo(Stream<String> stringStream ) {
+    stringStream.filt<caret>er(name -> name.startsWith("A")).filter(a -> a.length() > 1).findAny();
+  }
+}

java/java-tests/testSrc/com/intellij/codeInsight/intention/MergeFilterChainActionTest.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2000-2015 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.intention;
+
+import com.intellij.codeInsight.daemon.LightIntentionActionTestCase;
+import com.intellij.openapi.projectRoots.Sdk;
+import com.intellij.testFramework.IdeaTestUtil;
+
+public class MergeFilterChainActionTest extends LightIntentionActionTestCase {
+
+  public void test() throws Exception { doAllTests(); }
+
+  @Override
+  protected String getBasePath() {
+    return "/codeInsight/daemonCodeAnalyzer/quickFix/mergeFilter";
+  }
+
+  @Override
+  protected Sdk getProjectJDK() {
+    return IdeaTestUtil.getMockJdk18();
+  }
+}