Create a host-based mock for UefiBootServicesTableLib

MdePkg/Test/Library/MockUefiBootServicesTableLib/MockUefiBootServicesTableLib.c

@@ -0,0 +1,13 @@
+/** @file
+  Mock implementation of the UEFI Boot Services Table Library.
+
+  Copyright (C) Microsoft Corporation.
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Uefi.h>
+
+extern EFI_BOOT_SERVICES  MockBoot;
+
+EFI_BOOT_SERVICES  *gBS = &MockBoot;

MdePkg/Test/Library/MockUefiBootServicesTableLib/MockUefiBootServicesTableLib.inf

@@ -0,0 +1,25 @@
+## @file
+#  Mock implementation of the UEFI Boot Services Table Library.
+#
+#  Copyright (c) Microsoft Corporation.
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = MockUefiBootServicesTableLib
+  FILE_GUID                      = 67EA4614-E276-49EC-9AE6-B97ACCEA676E
+  MODULE_TYPE                    = HOST_APPLICATION
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = UefiBootServicesTableLib|HOST_APPLICATION
+
+#
+#  VALID_ARCHITECTURES           = IA32 X64 EBC
+#
+
+[Sources]
+  MockUefiBootServicesTableLib.c
+
+[Packages]
+  MdePkg/MdePkg.dec

MdePkg/Test/MdePkgHostTest.dsc

@@ -30,6 +30,7 @@
   MdePkg/Test/UnitTest/Library/BaseLib/BaseLibUnitTestsHost.inf
   MdePkg/Test/GoogleTest/Library/BaseSafeIntLib/GoogleTestBaseSafeIntLib.inf
   # MU_CHANGE [BEGIN]
+  MdePkg/Test/Library/MockUefiBootServicesTableLib/MockUefiBootServicesTableLib.inf
   MdePkg/Test/Library/MockUefiRuntimeServicesTableLib/MockUefiRuntimeServicesTableLib.inf
   MdePkg/Test/Library/StubHobLib/StubHobLib.inf
   MdePkg/Test/Library/StubUefiLib/StubUefiLib.inf