StreamToLoop tests grouped

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/streamToLoop/beforeIterate.java

@@ -1,14 +1,39 @@
-// "Replace Stream API chain with loop" "true"
+// "Fix all 'Stream API call chain can be replaced with loop' problems in file" "true"
 
 import java.util.IntSummaryStatistics;
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
 import java.util.stream.Stream;
 
 public class Main {
   public static IntSummaryStatistics test() {
-    return Stream.iterate("", x -> x + "a").limit(20).mapToInt(x -> x.length()).summaryStatisti<caret>cs();
+    return Stream.iterate("", x -> x + "a").limit(20).mapToInt(x -> x.length()).summaryStati<caret>stics();
+  }
+
+  public static List<String> testUseName() {
+    return Stream.iterate("", x -> x /* add "a" */ + "a").limit(/*limit*/20).collect(Collectors.toList());
+  }
+
+  public static IntSummaryStatistics testNested() {
+    return IntStream.range(0, 20).flatMap(limit -> Stream.iterate("", x -> x + limit).limit(limit).mapToInt(x -> x.length())).summaryStatistics();
+  }
+
+  private static List<String> testNestedUseName() {
+    return IntStream.range(0, 20).mapToObj(x -> x)
+      .flatMap(x -> Stream.iterate("", str -> "a"+str).limit(x))
+      .collect(Collectors.toList());
+  }
+
+  public static IntSummaryStatistics testNestedRename() {
+    return IntStream.range(0, 20).filter(x -> x > 2).flatMap(limit -> Stream.iterate(String.valueOf(limit), x -> x + limit).limit(limit).mapToInt(x -> x.length())).summaryStatistics();
   }
 
   public static void main(String[] args) {
     System.out.println(test());
+    System.out.println(testUseName());
+    System.out.println(testNested());
+    System.out.println(testNestedRename());
+    System.out.println(String.join("|", testNestedUseName()).length());
   }
 }