EnhancedSwitchBackwardMigration: generate multiple case labels: IDEA-205529

java/java-tests/testData/inspection/switchExpressionBackwardMigration/afterSwitchNoCaseExpressions.java

@@ -0,0 +1,13 @@
+// "Replace with old style 'switch' statement" "true"
+import java.util.*;
+
+class SwitchExpressionMigration {
+  int foo(int n) {
+      switch (n) {
+          case :
+              return 12;
+          default:
+              return 0;
+      }
+  }
+}

java/java-tests/testData/inspection/switchExpressionBackwardMigration/afterSwitchReturning.java

@@ -11,7 +11,8 @@ class SwitchExpressionMigration {
                   return 1;
           case 2:
               return 2;
-          case 3, 4:
+          case 3:
+          case 4:
               System.out.println("asda");
               return 3;
           default:

java/java-tests/testData/inspection/switchExpressionBackwardMigration/afterSwitchReturningComments.java

@@ -14,7 +14,8 @@ class SwitchExpressionMigration {
               /*16*/
           case 2:
               return 2 +/*17*/ 2;
-          case 3, 4:
+          case 3 /*in1*/ + 1:
+          case 4 /*in2*/ + 33:
               System.out.println("asda");
               return 3;
           /*19*/

java/java-tests/testData/inspection/switchExpressionBackwardMigration/afterSwitchStatements2.java

@@ -4,7 +4,8 @@ import java.util.*;
 public class Main {
   void foo(E e) {
       switch (e) {
-          case E1, E2:
+          case E1:
+          case E2:
               System.out.println("oops");
               break;
           default:

java/java-tests/testData/inspection/switchExpressionBackwardMigration/afterSwitchStatementsReturn.java

@@ -4,7 +4,8 @@ import java.util.*;
 public class Main {
   void foo(E e) {
       switch (e) {
-          case E1, E2:
+          case E1:
+          case E2:
               System.out.println("oops");
               break;
           default:

java/java-tests/testData/inspection/switchExpressionBackwardMigration/afterSwitchVarAssigning.java

@@ -16,7 +16,8 @@ class SwitchExpressionMigration {
           case 2:
               x = 2;
               break;
-          case 3, 4:
+          case 3:
+          case 4:
               System.out.println("asda");
               x = 3;
               break;

java/java-tests/testData/inspection/switchExpressionBackwardMigration/afterSwitchVarAssigningComments.java

@@ -20,7 +20,8 @@ class SwitchExpressionMigration {
           case 2:
               x = 2;
               break;
-          case 3, 4:
+          case 3:
+          case 4:
               System.out.println("asda");
               x = 3;
               break;

java/java-tests/testData/inspection/switchExpressionBackwardMigration/beforeSwitchNoCaseExpressions.java

@@ -0,0 +1,11 @@
+// "Replace with old style 'switch' statement" "true"
+import java.util.*;
+
+class SwitchExpressionMigration {
+  int foo(int n) {
+    return switch<caret> (n) {
+      case -> 12;
+      default -> 0;
+    };
+  }
+}

java/java-tests/testData/inspection/switchExpressionBackwardMigration/beforeSwitchReturningComments.java

@@ -10,7 +10,7 @@ class SwitchExpressionMigration {
         break 1;
       }
       case/*15*/ 2 -> /*16*/2 +/*17*/ 2;
-      case 3, 4 -> {
+      case 3 /*in1*/ + 1, 4 /*in2*/+ 33 -> {
         System.out.println("asda");
         break 3;
       }