From 08a84f844a221b8582f2de102f48775cae69b8bb Mon Sep 17 00:00:00 2001
From: fesseha-eve <88329315+fessehaeve@users.noreply.github.com>
Date: Wed, 29 Nov 2023 04:36:00 +0100
Subject: [PATCH] Fix type conversion error in BitFlags Clear (#30680)

* attempt to fix failing CI

* added test for BitMask Clear function
---
 src/lib/support/BitFlags.h            |  2 +-
 src/lib/support/tests/TestBitMask.cpp | 16 ++++++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/lib/support/BitFlags.h b/src/lib/support/BitFlags.h
index 3cc7dc4a24fdb2..c1f7efb80611ca 100644
--- a/src/lib/support/BitFlags.h
+++ b/src/lib/support/BitFlags.h
@@ -102,7 +102,7 @@ class BitFlags
      */
     BitFlags & Clear(const BitFlags & other)
     {
-        mValue &= ~other.mValue;
+        mValue &= static_cast<IntegerType>(~static_cast<IntegerType>(other.mValue));
         return *this;
     }
 
diff --git a/src/lib/support/tests/TestBitMask.cpp b/src/lib/support/tests/TestBitMask.cpp
index 1745f9295cc126..5405fb17c2c3d7 100644
--- a/src/lib/support/tests/TestBitMask.cpp
+++ b/src/lib/support/tests/TestBitMask.cpp
@@ -98,10 +98,26 @@ void TestBitMaskInvalid(nlTestSuite * inSuite, void * inContext)
     NL_TEST_ASSERT(inSuite, mask.Raw() == 0x1234);
 }
 
+void TestClear(nlTestSuite * inSuite, void * inContext)
+{
+    BitMask<TestEnum> mask1;
+    BitMask<TestEnum> mask2;
+
+    mask1.Set(TestEnum::kBit_0);
+    mask1.Set(TestEnum::kBits_1_2);
+    mask1.Set(TestEnum::kBits_High8);
+
+    mask2.Set(TestEnum::kBits_1_2);
+    mask1.Clear(mask2);
+
+    NL_TEST_ASSERT(inSuite, mask1.Raw() == 0xFF01);
+}
+
 const nlTest sTests[] = {
     NL_TEST_DEF("BitMask operations", TestBitMaskOperations), //
     NL_TEST_DEF("BitFields logic", TestBitFieldLogic),        //
     NL_TEST_DEF("Invalid operations", TestBitMaskInvalid),    //
+    NL_TEST_DEF("Clear operations", TestClear),               //
     NL_TEST_SENTINEL()                                        //
 };