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/** @file
This is a sample to demonstrates the use of GoogleTest that supports host
execution environments for test case that generates an exception. For some
host-based environments, this is a fatal condition that terminates the unit
tests and no additional test cases are executed. On other environments, this
condition may be report a unit test failure and continue with additional unit
tests.
A NULL pointer write is used to generate the exception because it produces
a fatal CPU exception (translation/page fault) on every architecture
supported by EDK II host-based testing.
Copyright (c) 2024, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Library/GoogleTestLib.h>
extern "C" {
#include <Uefi.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
}
VOID
WriteByteWithNoParameterChecking (
VOID *Address,
UINT8 Value
)
{
//
// Perform a byte write to the supplied address with no validity check.
//
*(volatile UINT8 *)Address = Value;
}
/**
Sample unit test that generates an unexpected exception by writing to a
NULL pointer.
**/
TEST (ExceptionTest, GenerateExceptionExpectTestFail) {
UINT8 LocalByte;
LocalByte = 0;
//
// Assertion that passes without generating an exception
//
WriteByteWithNoParameterChecking (&LocalByte, 0xA5);
EXPECT_EQ (LocalByte, (UINT8)0xA5);
//
// Assertion that generates a NULL pointer access exception before the
// following EXPECT_EQ result is evaluated
//
WriteByteWithNoParameterChecking (NULL, 0xA5);
EXPECT_EQ (LocalByte, (UINT8)0xA5);
}
int
main (
int argc,
char *argv[]
)
{
testing::InitGoogleTest (&argc, argv);
return RUN_ALL_TESTS ();
}
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