[edk2-devel] [stable/202011][Patch 2/2] MdeModulePkg/Variable/RuntimeDxe: Add Variable Lock Protocol Unit Tests
Michael D Kinney
michael.d.kinney at intel.com
Tue Jan 5 05:05:22 UTC 2021
https://bugzilla.tianocore.org/show_bug.cgi?id=3111
Add host based unit tests for the multiple lock case using Variable Lock
Protocol, Variable Policy Protocol, and mixes of Variable Lock Protocol
and Variable Policy Protocol.
Cc: Michael D Kinney <michael.d.kinney at intel.com>
Cc: Hao A Wu <hao.a.wu at intel.com>
Cc: Liming Gao <gaoliming at byosoft.com.cn>
Signed-off-by: Bret Barkelew <Bret.Barkelew at microsoft.com>
Reviewed-by: Hao A Wu <hao.a.wu at intel.com>
Reviewed-by: Liming Gao <gaoliming at byosoft.com.cn>
Reviewed-by: Michael D Kinney <michael.d.kinney at intel.com>
(cherry picked from commit dcaa93936591883aa7826eb45ef00416ad82ef08)
---
MdeModulePkg/Test/MdeModulePkgHostTest.dsc | 11 +
.../VariableLockRequestToLockUnitTest.c | 565 ++++++++++++++++++
.../VariableLockRequestToLockUnitTest.inf | 36 ++
3 files changed, 612 insertions(+)
create mode 100644 MdeModulePkg/Universal/Variable/RuntimeDxe/RuntimeDxeUnitTest/VariableLockRequestToLockUnitTest.c
create mode 100644 MdeModulePkg/Universal/Variable/RuntimeDxe/RuntimeDxeUnitTest/VariableLockRequestToLockUnitTest.inf
diff --git a/MdeModulePkg/Test/MdeModulePkgHostTest.dsc b/MdeModulePkg/Test/MdeModulePkgHostTest.dsc
index 72a119db4568..4da4692c8451 100644
--- a/MdeModulePkg/Test/MdeModulePkgHostTest.dsc
+++ b/MdeModulePkg/Test/MdeModulePkgHostTest.dsc
@@ -19,6 +19,9 @@ [Defines]
!include UnitTestFrameworkPkg/UnitTestFrameworkPkgHost.dsc.inc
+[LibraryClasses]
+ SafeIntLib|MdePkg/Library/BaseSafeIntLib/BaseSafeIntLib.inf
+
[Components]
MdeModulePkg/Library/DxeResetSystemLib/UnitTest/MockUefiRuntimeServicesTableLib.inf
@@ -30,3 +33,11 @@ [Components]
ResetSystemLib|MdeModulePkg/Library/DxeResetSystemLib/DxeResetSystemLib.inf
UefiRuntimeServicesTableLib|MdeModulePkg/Library/DxeResetSystemLib/UnitTest/MockUefiRuntimeServicesTableLib.inf
}
+
+ MdeModulePkg/Universal/Variable/RuntimeDxe/RuntimeDxeUnitTest/VariableLockRequestToLockUnitTest.inf {
+ <LibraryClasses>
+ VariablePolicyLib|MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLib.inf
+ VariablePolicyHelperLib|MdeModulePkg/Library/VariablePolicyHelperLib/VariablePolicyHelperLib.inf
+ <PcdsFixedAtBuild>
+ gEfiMdeModulePkgTokenSpaceGuid.PcdAllowVariablePolicyEnforcementDisable|TRUE
+ }
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/RuntimeDxeUnitTest/VariableLockRequestToLockUnitTest.c b/MdeModulePkg/Universal/Variable/RuntimeDxe/RuntimeDxeUnitTest/VariableLockRequestToLockUnitTest.c
new file mode 100644
index 000000000000..44d70e639d77
--- /dev/null
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/RuntimeDxeUnitTest/VariableLockRequestToLockUnitTest.c
@@ -0,0 +1,565 @@
+/** @file
+ This is a host-based unit test for the VariableLockRequestToLock shim.
+
+ Copyright (c) Microsoft Corporation.
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <setjmp.h>
+#include <cmocka.h>
+
+#include <Uefi.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/UnitTestLib.h>
+#include <Library/VariablePolicyLib.h>
+#include <Library/VariablePolicyHelperLib.h>
+
+#include <Protocol/VariableLock.h>
+
+#define UNIT_TEST_NAME "VarPol/VarLock Shim Unit Test"
+#define UNIT_TEST_VERSION "1.0"
+
+///=== CODE UNDER TEST ===========================================================================
+
+EFI_STATUS
+EFIAPI
+VariableLockRequestToLock (
+ IN CONST EDKII_VARIABLE_LOCK_PROTOCOL *This,
+ IN CHAR16 *VariableName,
+ IN EFI_GUID *VendorGuid
+ );
+
+///=== TEST DATA ==================================================================================
+
+//
+// Test GUID 1 {F955BA2D-4A2C-480C-BFD1-3CC522610592}
+//
+EFI_GUID mTestGuid1 = {
+ 0xf955ba2d, 0x4a2c, 0x480c, {0xbf, 0xd1, 0x3c, 0xc5, 0x22, 0x61, 0x5, 0x92}
+};
+
+//
+// Test GUID 2 {2DEA799E-5E73-43B9-870E-C945CE82AF3A}
+//
+EFI_GUID mTestGuid2 = {
+ 0x2dea799e, 0x5e73, 0x43b9, {0x87, 0xe, 0xc9, 0x45, 0xce, 0x82, 0xaf, 0x3a}
+};
+
+//
+// Test GUID 3 {698A2BFD-A616-482D-B88C-7100BD6682A9}
+//
+EFI_GUID mTestGuid3 = {
+ 0x698a2bfd, 0xa616, 0x482d, {0xb8, 0x8c, 0x71, 0x0, 0xbd, 0x66, 0x82, 0xa9}
+};
+
+#define TEST_VAR_1_NAME L"TestVar1"
+#define TEST_VAR_2_NAME L"TestVar2"
+#define TEST_VAR_3_NAME L"TestVar3"
+
+#define TEST_POLICY_ATTRIBUTES_NULL 0
+#define TEST_POLICY_MIN_SIZE_NULL 0
+#define TEST_POLICY_MAX_SIZE_NULL MAX_UINT32
+
+#define TEST_POLICY_MIN_SIZE_10 10
+#define TEST_POLICY_MAX_SIZE_200 200
+
+///=== HELPER FUNCTIONS ===========================================================================
+
+/**
+ Mocked version of GetVariable, for testing.
+
+ @param VariableName
+ @param VendorGuid
+ @param Attributes
+ @param DataSize
+ @param Data
+**/
+EFI_STATUS
+EFIAPI
+StubGetVariableNull (
+ IN CHAR16 *VariableName,
+ IN EFI_GUID *VendorGuid,
+ OUT UINT32 *Attributes, OPTIONAL
+ IN OUT UINTN *DataSize,
+ OUT VOID *Data OPTIONAL
+ )
+{
+ UINT32 MockedAttr;
+ UINTN MockedDataSize;
+ VOID *MockedData;
+ EFI_STATUS MockedReturn;
+
+ check_expected_ptr (VariableName);
+ check_expected_ptr (VendorGuid);
+ check_expected_ptr (DataSize);
+
+ MockedAttr = (UINT32)mock();
+ MockedDataSize = (UINTN)mock();
+ MockedData = (VOID*)(UINTN)mock();
+ MockedReturn = (EFI_STATUS)mock();
+
+ if (Attributes != NULL) {
+ *Attributes = MockedAttr;
+ }
+ if (Data != NULL && !EFI_ERROR (MockedReturn)) {
+ CopyMem (Data, MockedData, MockedDataSize);
+ }
+
+ *DataSize = MockedDataSize;
+
+ return MockedReturn;
+}
+
+//
+// Anything you think might be helpful that isn't a test itself.
+//
+
+/**
+ This is a common setup function that will ensure the library is always
+ initialized with the stubbed GetVariable.
+
+ Not used by all test cases, but by most.
+
+ @param[in] Context Unit test case context
+**/
+STATIC
+UNIT_TEST_STATUS
+EFIAPI
+LibInitMocked (
+ IN UNIT_TEST_CONTEXT Context
+ )
+{
+ return EFI_ERROR (InitVariablePolicyLib (StubGetVariableNull)) ? UNIT_TEST_ERROR_PREREQUISITE_NOT_MET : UNIT_TEST_PASSED;
+}
+
+/**
+ Common cleanup function to make sure that the library is always de-initialized
+ prior to the next test case.
+
+ @param[in] Context Unit test case context
+**/
+STATIC
+VOID
+EFIAPI
+LibCleanup (
+ IN UNIT_TEST_CONTEXT Context
+ )
+{
+ DeinitVariablePolicyLib();
+}
+
+///=== TEST CASES =================================================================================
+
+///===== SHIM SUITE ===========================================================
+
+/**
+ Test Case that locks a single variable using the Variable Lock Protocol.
+ The call is expected to succeed.
+
+ @param[in] Context Unit test case context
+**/
+UNIT_TEST_STATUS
+EFIAPI
+LockingWithoutAnyPoliciesShouldSucceed (
+ IN UNIT_TEST_CONTEXT Context
+ )
+{
+ EFI_STATUS Status;
+
+ Status = VariableLockRequestToLock (NULL, TEST_VAR_1_NAME, &mTestGuid1);
+ UT_ASSERT_NOT_EFI_ERROR (Status);
+
+ return UNIT_TEST_PASSED;
+}
+
+/**
+ Test Case that locks the same variable twice using the Variable Lock Protocol.
+ Both calls are expected to succeed.
+
+ @param[in] Context Unit test case context
+ **/
+UNIT_TEST_STATUS
+EFIAPI
+LockingTwiceShouldSucceed (
+ IN UNIT_TEST_CONTEXT Context
+ )
+{
+ EFI_STATUS Status;
+
+ Status = VariableLockRequestToLock (NULL, TEST_VAR_1_NAME, &mTestGuid1);
+ UT_ASSERT_NOT_EFI_ERROR (Status);
+
+ Status = VariableLockRequestToLock (NULL, TEST_VAR_1_NAME, &mTestGuid1);
+ UT_ASSERT_NOT_EFI_ERROR (Status);
+
+ return UNIT_TEST_PASSED;
+}
+
+/**
+ Test Case that locks a variable using the Variable Policy Protocol then locks
+ the same variable using the Variable Lock Protocol.
+ Both calls are expected to succeed.
+
+ @param[in] Context Unit test case context
+ **/
+UNIT_TEST_STATUS
+EFIAPI
+LockingALockedVariableShouldSucceed (
+ IN UNIT_TEST_CONTEXT Context
+ )
+{
+ EFI_STATUS Status;
+ VARIABLE_POLICY_ENTRY *NewEntry;
+
+ //
+ // Create a variable policy that locks the variable.
+ //
+ Status = CreateBasicVariablePolicy (
+ &mTestGuid1,
+ TEST_VAR_1_NAME,
+ TEST_POLICY_MIN_SIZE_NULL,
+ TEST_POLICY_MAX_SIZE_200,
+ TEST_POLICY_ATTRIBUTES_NULL,
+ TEST_POLICY_ATTRIBUTES_NULL,
+ VARIABLE_POLICY_TYPE_LOCK_NOW,
+ &NewEntry
+ );
+ UT_ASSERT_NOT_EFI_ERROR (Status);
+
+ //
+ // Register the new policy.
+ //
+ Status = RegisterVariablePolicy (NewEntry);
+
+ Status = VariableLockRequestToLock (NULL, TEST_VAR_1_NAME, &mTestGuid1);
+ UT_ASSERT_NOT_EFI_ERROR (Status);
+
+ FreePool (NewEntry);
+
+ return UNIT_TEST_PASSED;
+}
+
+/**
+ Test Case that locks a variable using the Variable Policy Protocol with a
+ policy other than LOCK_NOW then attempts to lock the same variable using the
+ Variable Lock Protocol. The call to Variable Policy is expected to succeed
+ and the call to Variable Lock is expected to fail.
+
+ @param[in] Context Unit test case context
+ **/
+UNIT_TEST_STATUS
+EFIAPI
+LockingAnUnlockedVariableShouldFail (
+ IN UNIT_TEST_CONTEXT Context
+ )
+{
+ EFI_STATUS Status;
+ VARIABLE_POLICY_ENTRY *NewEntry;
+
+ // Create a variable policy that locks the variable.
+ Status = CreateVarStateVariablePolicy (&mTestGuid1,
+ TEST_VAR_1_NAME,
+ TEST_POLICY_MIN_SIZE_NULL,
+ TEST_POLICY_MAX_SIZE_200,
+ TEST_POLICY_ATTRIBUTES_NULL,
+ TEST_POLICY_ATTRIBUTES_NULL,
+ &mTestGuid2,
+ 1,
+ TEST_VAR_2_NAME,
+ &NewEntry);
+ UT_ASSERT_NOT_EFI_ERROR (Status);
+
+ // Register the new policy.
+ Status = RegisterVariablePolicy (NewEntry);
+
+ // Configure the stub to not care about parameters. We're testing errors.
+ expect_any_always( StubGetVariableNull, VariableName );
+ expect_any_always( StubGetVariableNull, VendorGuid );
+ expect_any_always( StubGetVariableNull, DataSize );
+
+ // With a policy, make sure that writes still work, since the variable doesn't exist.
+ will_return( StubGetVariableNull, TEST_POLICY_ATTRIBUTES_NULL ); // Attributes
+ will_return( StubGetVariableNull, 0 ); // Size
+ will_return( StubGetVariableNull, NULL ); // DataPtr
+ will_return( StubGetVariableNull, EFI_NOT_FOUND); // Status
+
+ Status = VariableLockRequestToLock (NULL, TEST_VAR_1_NAME, &mTestGuid1);
+ UT_ASSERT_TRUE (EFI_ERROR (Status));
+
+ FreePool (NewEntry);
+
+ return UNIT_TEST_PASSED;
+}
+
+/**
+ Test Case that locks a variable using the Variable Policy Protocol with a
+ policy other than LOCK_NOW, but is currently locked. Then attempts to lock
+ the same variable using the Variable Lock Protocol. The call to Variable
+ Policy is expected to succeed and the call to Variable Lock also expected to
+ succeed.
+
+ @param[in] Context Unit test case context
+ **/
+UNIT_TEST_STATUS
+EFIAPI
+LockingALockedVariableWithMatchingDataShouldSucceed (
+ IN UNIT_TEST_CONTEXT Context
+ )
+{
+ EFI_STATUS Status;
+ VARIABLE_POLICY_ENTRY *NewEntry;
+ UINT8 Data;
+
+ // Create a variable policy that locks the variable.
+ Status = CreateVarStateVariablePolicy (&mTestGuid1,
+ TEST_VAR_1_NAME,
+ TEST_POLICY_MIN_SIZE_NULL,
+ TEST_POLICY_MAX_SIZE_200,
+ TEST_POLICY_ATTRIBUTES_NULL,
+ TEST_POLICY_ATTRIBUTES_NULL,
+ &mTestGuid2,
+ 1,
+ TEST_VAR_2_NAME,
+ &NewEntry);
+ UT_ASSERT_NOT_EFI_ERROR (Status);
+
+ // Register the new policy.
+ Status = RegisterVariablePolicy (NewEntry);
+
+ // Configure the stub to not care about parameters. We're testing errors.
+ expect_any_always( StubGetVariableNull, VariableName );
+ expect_any_always( StubGetVariableNull, VendorGuid );
+ expect_any_always( StubGetVariableNull, DataSize );
+
+ // With a policy, make sure that writes still work, since the variable doesn't exist.
+ Data = 1;
+ will_return( StubGetVariableNull, TEST_POLICY_ATTRIBUTES_NULL ); // Attributes
+ will_return( StubGetVariableNull, sizeof (Data) ); // Size
+ will_return( StubGetVariableNull, &Data ); // DataPtr
+ will_return( StubGetVariableNull, EFI_SUCCESS); // Status
+
+ Status = VariableLockRequestToLock (NULL, TEST_VAR_1_NAME, &mTestGuid1);
+ UT_ASSERT_TRUE (!EFI_ERROR (Status));
+
+ FreePool (NewEntry);
+
+ return UNIT_TEST_PASSED;
+}
+
+/**
+ Test Case that locks a variable using the Variable Policy Protocol with a
+ policy other than LOCK_NOW, but variable data does not match. Then attempts
+ to lock the same variable using the Variable Lock Protocol. The call to
+ Variable Policy is expected to succeed and the call to Variable Lock is
+ expected to fail.
+
+ @param[in] Context Unit test case context
+ **/
+UNIT_TEST_STATUS
+EFIAPI
+LockingALockedVariableWithNonMatchingDataShouldFail (
+ IN UNIT_TEST_CONTEXT Context
+ )
+{
+ EFI_STATUS Status;
+ VARIABLE_POLICY_ENTRY *NewEntry;
+ UINT8 Data;
+
+ // Create a variable policy that locks the variable.
+ Status = CreateVarStateVariablePolicy (&mTestGuid1,
+ TEST_VAR_1_NAME,
+ TEST_POLICY_MIN_SIZE_NULL,
+ TEST_POLICY_MAX_SIZE_200,
+ TEST_POLICY_ATTRIBUTES_NULL,
+ TEST_POLICY_ATTRIBUTES_NULL,
+ &mTestGuid2,
+ 1,
+ TEST_VAR_2_NAME,
+ &NewEntry);
+ UT_ASSERT_NOT_EFI_ERROR (Status);
+
+ // Register the new policy.
+ Status = RegisterVariablePolicy (NewEntry);
+
+ // Configure the stub to not care about parameters. We're testing errors.
+ expect_any_always( StubGetVariableNull, VariableName );
+ expect_any_always( StubGetVariableNull, VendorGuid );
+ expect_any_always( StubGetVariableNull, DataSize );
+
+ // With a policy, make sure that writes still work, since the variable doesn't exist.
+ Data = 2;
+ will_return( StubGetVariableNull, TEST_POLICY_ATTRIBUTES_NULL ); // Attributes
+ will_return( StubGetVariableNull, sizeof (Data) ); // Size
+ will_return( StubGetVariableNull, &Data ); // DataPtr
+ will_return( StubGetVariableNull, EFI_SUCCESS); // Status
+
+ Status = VariableLockRequestToLock (NULL, TEST_VAR_1_NAME, &mTestGuid1);
+ UT_ASSERT_TRUE (EFI_ERROR (Status));
+
+ FreePool (NewEntry);
+
+ return UNIT_TEST_PASSED;
+}
+
+/**
+ Test Case that locks a variable using Variable Lock Protocol Policy Protocol
+ then and then attempts to lock the same variable using the Variable Policy
+ Protocol. The call to Variable Lock is expected to succeed and the call to
+ Variable Policy is expected to fail.
+
+ @param[in] Context Unit test case context
+ **/
+UNIT_TEST_STATUS
+EFIAPI
+SettingPolicyForALockedVariableShouldFail (
+ IN UNIT_TEST_CONTEXT Context
+ )
+{
+ EFI_STATUS Status;
+ VARIABLE_POLICY_ENTRY *NewEntry;
+
+ // Lock the variable.
+ Status = VariableLockRequestToLock (NULL, TEST_VAR_1_NAME, &mTestGuid1);
+ UT_ASSERT_NOT_EFI_ERROR (Status);
+
+ // Create a variable policy that locks the variable.
+ Status = CreateVarStateVariablePolicy (&mTestGuid1,
+ TEST_VAR_1_NAME,
+ TEST_POLICY_MIN_SIZE_NULL,
+ TEST_POLICY_MAX_SIZE_200,
+ TEST_POLICY_ATTRIBUTES_NULL,
+ TEST_POLICY_ATTRIBUTES_NULL,
+ &mTestGuid2,
+ 1,
+ TEST_VAR_2_NAME,
+ &NewEntry);
+ UT_ASSERT_NOT_EFI_ERROR (Status);
+
+ // Register the new policy.
+ Status = RegisterVariablePolicy (NewEntry);
+ UT_ASSERT_TRUE (EFI_ERROR (Status));
+
+ FreePool (NewEntry);
+
+ return UNIT_TEST_PASSED;
+}
+
+/**
+ Main entry point to this unit test application.
+
+ Sets up and runs the test suites.
+**/
+VOID
+EFIAPI
+UnitTestMain (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ UNIT_TEST_FRAMEWORK_HANDLE Framework;
+ UNIT_TEST_SUITE_HANDLE ShimTests;
+
+ Framework = NULL;
+
+ DEBUG ((DEBUG_INFO, "%a v%a\n", UNIT_TEST_NAME, UNIT_TEST_VERSION));
+
+ //
+ // Start setting up the test framework for running the tests.
+ //
+ Status = InitUnitTestFramework (&Framework, UNIT_TEST_NAME, gEfiCallerBaseName, UNIT_TEST_VERSION);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "Failed in InitUnitTestFramework. Status = %r\n", Status));
+ goto EXIT;
+ }
+
+ //
+ // Add all test suites and tests.
+ //
+ Status = CreateUnitTestSuite (
+ &ShimTests, Framework,
+ "Variable Lock Shim Tests", "VarPolicy.VarLockShim", NULL, NULL
+ );
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "Failed in CreateUnitTestSuite for ShimTests\n"));
+ Status = EFI_OUT_OF_RESOURCES;
+ goto EXIT;
+ }
+ AddTestCase (
+ ShimTests,
+ "Locking a variable with no matching policies should always work", "EmptyPolicies",
+ LockingWithoutAnyPoliciesShouldSucceed, LibInitMocked, LibCleanup, NULL
+ );
+ AddTestCase (
+ ShimTests,
+ "Locking a variable twice should always work", "DoubleLock",
+ LockingTwiceShouldSucceed, LibInitMocked, LibCleanup, NULL
+ );
+ AddTestCase (
+ ShimTests,
+ "Locking a variable that's already locked by another policy should work", "LockAfterPolicy",
+ LockingALockedVariableShouldSucceed, LibInitMocked, LibCleanup, NULL
+ );
+ AddTestCase (
+ ShimTests,
+ "Locking a variable that already has an unlocked policy should fail", "LockAfterUnlockedPolicy",
+ LockingAnUnlockedVariableShouldFail, LibInitMocked, LibCleanup, NULL
+ );
+ AddTestCase (
+ ShimTests,
+ "Locking a variable that already has an locked policy should succeed", "LockAfterLockedPolicyMatchingData",
+ LockingALockedVariableWithMatchingDataShouldSucceed, LibInitMocked, LibCleanup, NULL
+ );
+ AddTestCase (
+ ShimTests,
+ "Locking a variable that already has an locked policy with matching data should succeed", "LockAfterLockedPolicyNonMatchingData",
+ LockingALockedVariableWithNonMatchingDataShouldFail, LibInitMocked, LibCleanup, NULL
+ );
+ AddTestCase (
+ ShimTests,
+ "Adding a policy for a variable that has previously been locked should always fail", "SetPolicyAfterLock",
+ SettingPolicyForALockedVariableShouldFail, LibInitMocked, LibCleanup, NULL
+ );
+
+ //
+ // Execute the tests.
+ //
+ Status = RunAllTestSuites (Framework);
+
+EXIT:
+ if (Framework != NULL) {
+ FreeUnitTestFramework (Framework);
+ }
+
+ return;
+}
+
+///
+/// Avoid ECC error for function name that starts with lower case letter
+///
+#define Main main
+
+/**
+ Standard POSIX C entry point for host based unit test execution.
+
+ @param[in] Argc Number of arguments
+ @param[in] Argv Array of pointers to arguments
+
+ @retval 0 Success
+ @retval other Error
+**/
+INT32
+Main (
+ IN INT32 Argc,
+ IN CHAR8 *Argv[]
+ )
+{
+ UnitTestMain ();
+ return 0;
+}
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/RuntimeDxeUnitTest/VariableLockRequestToLockUnitTest.inf b/MdeModulePkg/Universal/Variable/RuntimeDxe/RuntimeDxeUnitTest/VariableLockRequestToLockUnitTest.inf
new file mode 100644
index 000000000000..2a659d7e1370
--- /dev/null
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/RuntimeDxeUnitTest/VariableLockRequestToLockUnitTest.inf
@@ -0,0 +1,36 @@
+## @file
+# This is a host-based unit test for the VariableLockRequestToLock shim.
+#
+# Copyright (c) Microsoft Corporation.
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+
+[Defines]
+ INF_VERSION = 0x00010017
+ BASE_NAME = VariableLockRequestToLockUnitTest
+ FILE_GUID = A7388B6C-7274-4717-9649-BDC5DFD1FCBE
+ VERSION_STRING = 1.0
+ MODULE_TYPE = HOST_APPLICATION
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 ARM AARCH64
+#
+
+[Sources]
+ VariableLockRequestToLockUnitTest.c
+ ../VariableLockRequestToLock.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ UnitTestFrameworkPkg/UnitTestFrameworkPkg.dec
+
+[LibraryClasses]
+ UnitTestLib
+ DebugLib
+ VariablePolicyLib
+ VariablePolicyHelperLib
+ BaseMemoryLib
+ MemoryAllocationLib
--
2.29.2.windows.2
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