From 7eb5a4e8972c356775d0adbb6da3ec87d437d1a8 Mon Sep 17 00:00:00 2001
From: shamith2 <shamith@datainsights.ae>
Date: Thu, 25 May 2023 14:15:06 +0530
Subject: [PATCH] Issue #13086: InnerAssignmentCheck failed for one line code
 in Java 14 switch expression

---
 .../checks/coding/InnerAssignmentCheck.java   |  1 +
 .../coding/InnerAssignmentCheckTest.java      |  8 +++++++
 ...nputInnerAssignmentWithEnhancedSwitch.java | 23 +++++++++++++++++++
 3 files changed, 32 insertions(+)
 create mode 100644 src/test/resources-noncompilable/com/puppycrawl/tools/checkstyle/checks/coding/innerassignment/InputInnerAssignmentWithEnhancedSwitch.java

diff --git a/src/main/java/com/puppycrawl/tools/checkstyle/checks/coding/InnerAssignmentCheck.java b/src/main/java/com/puppycrawl/tools/checkstyle/checks/coding/InnerAssignmentCheck.java
index 18247669d53..7bb3f0feb48 100644
--- a/src/main/java/com/puppycrawl/tools/checkstyle/checks/coding/InnerAssignmentCheck.java
+++ b/src/main/java/com/puppycrawl/tools/checkstyle/checks/coding/InnerAssignmentCheck.java
@@ -150,6 +150,7 @@ public class InnerAssignmentCheck
             TokenTypes.RESOURCE_SPECIFICATION,
         },
         {TokenTypes.EXPR, TokenTypes.LAMBDA},
+        {TokenTypes.EXPR, TokenTypes.SWITCH_RULE},
     };
 
     /**
diff --git a/src/test/java/com/puppycrawl/tools/checkstyle/checks/coding/InnerAssignmentCheckTest.java b/src/test/java/com/puppycrawl/tools/checkstyle/checks/coding/InnerAssignmentCheckTest.java
index f33cc2527ef..6ef6d798399 100644
--- a/src/test/java/com/puppycrawl/tools/checkstyle/checks/coding/InnerAssignmentCheckTest.java
+++ b/src/test/java/com/puppycrawl/tools/checkstyle/checks/coding/InnerAssignmentCheckTest.java
@@ -61,6 +61,14 @@ public void testIt() throws Exception {
                 getPath("InputInnerAssignment.java"), expected);
     }
 
+    @Test
+    public void testEnhancedSwitchExpression() throws Exception {
+        final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
+        verifyWithInlineConfigParser(
+                getNonCompilablePath("InputInnerAssignmentWithEnhancedSwitch.java"),
+                expected);
+    }
+
     @Test
     public void testLambdaExpression() throws Exception {
         final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
diff --git a/src/test/resources-noncompilable/com/puppycrawl/tools/checkstyle/checks/coding/innerassignment/InputInnerAssignmentWithEnhancedSwitch.java b/src/test/resources-noncompilable/com/puppycrawl/tools/checkstyle/checks/coding/innerassignment/InputInnerAssignmentWithEnhancedSwitch.java
new file mode 100644
index 00000000000..e956e03ef57
--- /dev/null
+++ b/src/test/resources-noncompilable/com/puppycrawl/tools/checkstyle/checks/coding/innerassignment/InputInnerAssignmentWithEnhancedSwitch.java
@@ -0,0 +1,23 @@
+/*
+InnerAssignment
+
+
+*/
+
+//non-compiled with javac: Compilable with Java14
+package com.puppycrawl.tools.checkstyle.checks.coding.innerassignment;
+
+public class InputInnerAssignmentWithEnhancedSwitch {
+
+    void method(final String operation) {
+        boolean flag = false;
+        if (flag = false) {} // violation
+        switch (operation) {
+            case "Y" -> flag = true;  // no violation 
+            case "N" -> {
+                flag = false;
+            }
+            default -> throw new UnsupportedOperationException();
+        }
+    }
+}