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Diffstat (limited to 'MdePkg/Test/UnitTest/Library/BaseSafeIntLib/SafeIntLibUintnIntnUnitTests32.c')
| -rw-r--r-- | MdePkg/Test/UnitTest/Library/BaseSafeIntLib/SafeIntLibUintnIntnUnitTests32.c | 540 |
1 files changed, 540 insertions, 0 deletions
diff --git a/MdePkg/Test/UnitTest/Library/BaseSafeIntLib/SafeIntLibUintnIntnUnitTests32.c b/MdePkg/Test/UnitTest/Library/BaseSafeIntLib/SafeIntLibUintnIntnUnitTests32.c new file mode 100644 index 000000000000..6e663a7a4482 --- /dev/null +++ b/MdePkg/Test/UnitTest/Library/BaseSafeIntLib/SafeIntLibUintnIntnUnitTests32.c @@ -0,0 +1,540 @@ +/** @file + IA32-specific functions for unit-testing INTN and UINTN functions in + SafeIntLib. + + Copyright (c) Microsoft Corporation.<BR> + Copyright (c) 2019 - 2020, Intel Corporation. All rights reserved.<BR> + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include "TestBaseSafeIntLib.h" + +UNIT_TEST_STATUS +EFIAPI +TestSafeInt32ToUintn ( + IN UNIT_TEST_CONTEXT Context + ) +{ + EFI_STATUS Status; + INT32 Operand; + UINTN Result; + + // + // If Operand is non-negative, then it's a cast + // + Operand = 0x5bababab; + Result = 0; + Status = SafeInt32ToUintn(Operand, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL(0x5bababab, Result); + + // + // Otherwise should result in an error status + // + Operand = (-1537977259); + Status = SafeInt32ToUintn(Operand, &Result); + UT_ASSERT_EQUAL(RETURN_BUFFER_TOO_SMALL, Status); + + return UNIT_TEST_PASSED; +} + +UNIT_TEST_STATUS +EFIAPI +TestSafeUint32ToIntn ( + IN UNIT_TEST_CONTEXT Context + ) +{ + EFI_STATUS Status; + UINT32 Operand; + INTN Result; + + // + // If Operand is <= MAX_INTN, then it's a cast + // + Operand = 0x5bababab; + Result = 0; + Status = SafeUint32ToIntn(Operand, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL(0x5bababab, Result); + + // + // Otherwise should result in an error status + // + Operand = (0xabababab); + Status = SafeUint32ToIntn(Operand, &Result); + UT_ASSERT_EQUAL(RETURN_BUFFER_TOO_SMALL, Status); + + return UNIT_TEST_PASSED; +} + +UNIT_TEST_STATUS +EFIAPI +TestSafeIntnToInt32 ( + IN UNIT_TEST_CONTEXT Context + ) +{ + EFI_STATUS Status; + INTN Operand; + INT32 Result; + + // + // INTN is same as INT32 in IA32, so this is just a cast + // + Operand = 0x5bababab; + Result = 0; + Status = SafeIntnToInt32(Operand, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL(0x5bababab, Result); + + return UNIT_TEST_PASSED; +} + +UNIT_TEST_STATUS +EFIAPI +TestSafeIntnToUint32 ( + IN UNIT_TEST_CONTEXT Context + ) +{ + EFI_STATUS Status; + INTN Operand; + UINT32 Result; + + // + // If Operand is non-negative, then it's a cast + // + Operand = 0x5bababab; + Result = 0; + Status = SafeIntnToUint32(Operand, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL(0x5bababab, Result); + + // + // Otherwise should result in an error status + // + Operand = (-1537977259); + Status = SafeIntnToUint32(Operand, &Result); + UT_ASSERT_EQUAL(RETURN_BUFFER_TOO_SMALL, Status); + + return UNIT_TEST_PASSED; +} + +UNIT_TEST_STATUS +EFIAPI +TestSafeUintnToUint32 ( + IN UNIT_TEST_CONTEXT Context + ) +{ + EFI_STATUS Status; + UINTN Operand; + UINT32 Result; + + // + // UINTN is same as UINT32 in IA32, so this is just a cast + // + Operand = 0xabababab; + Result = 0; + Status = SafeUintnToUint32(Operand, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL(0xabababab, Result); + + return UNIT_TEST_PASSED; +} + +UNIT_TEST_STATUS +EFIAPI +TestSafeUintnToIntn ( + IN UNIT_TEST_CONTEXT Context + ) +{ + EFI_STATUS Status; + UINTN Operand; + INTN Result; + + // + // If Operand is <= MAX_INTN, then it's a cast + // + Operand = 0x5bababab; + Result = 0; + Status = SafeUintnToIntn(Operand, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL(0x5bababab, Result); + + // + // Otherwise should result in an error status + // + Operand = (0xabababab); + Status = SafeUintnToIntn(Operand, &Result); + UT_ASSERT_EQUAL(RETURN_BUFFER_TOO_SMALL, Status); + + return UNIT_TEST_PASSED; +} + +UNIT_TEST_STATUS +EFIAPI +TestSafeUintnToInt64 ( + IN UNIT_TEST_CONTEXT Context + ) +{ + EFI_STATUS Status; + UINTN Operand; + INT64 Result; + + // + // UINTN is same as UINT32 in IA32, and UINT32 is a subset of + // INT64, so this is just a cast + // + Operand = 0xabababab; + Result = 0; + Status = SafeUintnToInt64(Operand, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL(0xabababab, Result); + + return UNIT_TEST_PASSED; +} + +UNIT_TEST_STATUS +EFIAPI +TestSafeInt64ToIntn ( + IN UNIT_TEST_CONTEXT Context + ) +{ + EFI_STATUS Status; + INT64 Operand; + INTN Result; + + // + // If Operand is between MIN_INTN and MAX_INTN2 inclusive, then it's a cast + // + Operand = 0x5bababab; + Result = 0; + Status = SafeInt64ToIntn(Operand, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL(0x5bababab, Result); + + Operand = (-1537977259); + Status = SafeInt64ToIntn(Operand, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL((-1537977259), Result); + + // + // Otherwise should result in an error status + // + Operand = (0x5babababefefefef); + Status = SafeInt64ToIntn(Operand, &Result); + UT_ASSERT_EQUAL(RETURN_BUFFER_TOO_SMALL, Status); + + Operand = (-6605562033422200815); + Status = SafeInt64ToIntn(Operand, &Result); + UT_ASSERT_EQUAL(RETURN_BUFFER_TOO_SMALL, Status); + + return UNIT_TEST_PASSED; +} + +UNIT_TEST_STATUS +EFIAPI +TestSafeInt64ToUintn ( + IN UNIT_TEST_CONTEXT Context + ) +{ + EFI_STATUS Status; + INT64 Operand; + UINTN Result; + + // + // If Operand is between 0 and MAX_UINTN inclusive, then it's a cast + // + Operand = 0xabababab; + Result = 0; + Status = SafeInt64ToUintn(Operand, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL(0xabababab, Result); + + // + // Otherwise should result in an error status + // + Operand = (0x5babababefefefef); + Status = SafeInt64ToUintn(Operand, &Result); + UT_ASSERT_EQUAL(RETURN_BUFFER_TOO_SMALL, Status); + + Operand = (-6605562033422200815); + Status = SafeInt64ToUintn(Operand, &Result); + UT_ASSERT_EQUAL(RETURN_BUFFER_TOO_SMALL, Status); + + return UNIT_TEST_PASSED; +} + +UNIT_TEST_STATUS +EFIAPI +TestSafeUint64ToIntn ( + IN UNIT_TEST_CONTEXT Context + ) +{ + EFI_STATUS Status; + UINT64 Operand; + INTN Result; + + // + // If Operand is <= MAX_INTN, then it's a cast + // + Operand = 0x5bababab; + Result = 0; + Status = SafeUint64ToIntn(Operand, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL(0x5bababab, Result); + + // + // Otherwise should result in an error status + // + Operand = (0xababababefefefef); + Status = SafeUint64ToIntn(Operand, &Result); + UT_ASSERT_EQUAL(RETURN_BUFFER_TOO_SMALL, Status); + + return UNIT_TEST_PASSED; +} + +UNIT_TEST_STATUS +EFIAPI +TestSafeUint64ToUintn ( + IN UNIT_TEST_CONTEXT Context + ) +{ + EFI_STATUS Status; + UINT64 Operand; + UINTN Result; + + // + // If Operand is <= MAX_UINTN, then it's a cast + // + Operand = 0xabababab; + Result = 0; + Status = SafeUint64ToUintn(Operand, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL(0xabababab, Result); + + // + // Otherwise should result in an error status + // + Operand = (0xababababefefefef); + Status = SafeUint64ToUintn(Operand, &Result); + UT_ASSERT_EQUAL(RETURN_BUFFER_TOO_SMALL, Status); + + return UNIT_TEST_PASSED; +} + +UNIT_TEST_STATUS +EFIAPI +TestSafeUintnAdd ( + IN UNIT_TEST_CONTEXT Context + ) +{ + EFI_STATUS Status; + UINTN Augend; + UINTN Addend; + UINTN Result; + + // + // If the result of addition doesn't overflow MAX_UINTN, then it's addition + // + Augend = 0x3a3a3a3a; + Addend = 0x3a3a3a3a; + Result = 0; + Status = SafeUintnAdd(Augend, Addend, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL(0x74747474, Result); + + // + // Otherwise should result in an error status + // + Augend = 0xabababab; + Addend = 0xbcbcbcbc; + Status = SafeUintnAdd(Augend, Addend, &Result); + UT_ASSERT_EQUAL(RETURN_BUFFER_TOO_SMALL, Status); + + return UNIT_TEST_PASSED; +} + +UNIT_TEST_STATUS +EFIAPI +TestSafeIntnAdd ( + IN UNIT_TEST_CONTEXT Context + ) +{ + EFI_STATUS Status; + INTN Augend; + INTN Addend; + INTN Result; + + // + // If the result of addition doesn't overflow MAX_INTN + // and doesn't underflow MIN_INTN, then it's addition + // + Augend = 0x3a3a3a3a; + Addend = 0x3a3a3a3a; + Result = 0; + Status = SafeIntnAdd(Augend, Addend, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL(0x74747474, Result); + + Augend = (-976894522); + Addend = (-976894522); + Status = SafeIntnAdd(Augend, Addend, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL((-1953789044), Result); + + // + // Otherwise should result in an error status + // + Augend = 0x5a5a5a5a; + Addend = 0x5a5a5a5a; + Status = SafeIntnAdd(Augend, Addend, &Result); + UT_ASSERT_EQUAL(RETURN_BUFFER_TOO_SMALL, Status); + + Augend = (-1515870810); + Addend = (-1515870810); + Status = SafeIntnAdd(Augend, Addend, &Result); + UT_ASSERT_EQUAL(RETURN_BUFFER_TOO_SMALL, Status); + + return UNIT_TEST_PASSED; +} + +UNIT_TEST_STATUS +EFIAPI +TestSafeUintnSub ( + IN UNIT_TEST_CONTEXT Context + ) +{ + EFI_STATUS Status; + UINTN Minuend; + UINTN Subtrahend; + UINTN Result; + + // + // If Minuend >= Subtrahend, then it's subtraction + // + Minuend = 0x5a5a5a5a; + Subtrahend = 0x3b3b3b3b; + Result = 0; + Status = SafeUintnSub(Minuend, Subtrahend, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL(0x1f1f1f1f, Result); + + // + // Otherwise should result in an error status + // + Minuend = 0x5a5a5a5a; + Subtrahend = 0x6d6d6d6d; + Status = SafeUintnSub(Minuend, Subtrahend, &Result); + UT_ASSERT_EQUAL(RETURN_BUFFER_TOO_SMALL, Status); + + return UNIT_TEST_PASSED; +} + +UNIT_TEST_STATUS +EFIAPI +TestSafeIntnSub ( + IN UNIT_TEST_CONTEXT Context + ) +{ + EFI_STATUS Status; + INTN Minuend; + INTN Subtrahend; + INTN Result; + + // + // If the result of subtractions doesn't overflow MAX_INTN or + // underflow MIN_INTN, then it's subtraction + // + Minuend = 0x5a5a5a5a; + Subtrahend = 0x3a3a3a3a; + Result = 0; + Status = SafeIntnSub(Minuend, Subtrahend, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL(0x20202020, Result); + + Minuend = 0x3a3a3a3a; + Subtrahend = 0x5a5a5a5a; + Status = SafeIntnSub(Minuend, Subtrahend, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL((-538976288), Result); + + // + // Otherwise should result in an error status + // + Minuend = (-2054847098); + Subtrahend = 2054847098; + Status = SafeIntnSub(Minuend, Subtrahend, &Result); + UT_ASSERT_EQUAL(RETURN_BUFFER_TOO_SMALL, Status); + + Minuend = (2054847098); + Subtrahend = (-2054847098); + Status = SafeIntnSub(Minuend, Subtrahend, &Result); + UT_ASSERT_EQUAL(RETURN_BUFFER_TOO_SMALL, Status); + + return UNIT_TEST_PASSED; +} + +UNIT_TEST_STATUS +EFIAPI +TestSafeUintnMult ( + IN UNIT_TEST_CONTEXT Context + ) +{ + EFI_STATUS Status; + UINTN Multiplicand; + UINTN Multiplier; + UINTN Result; + + // + // If the result of multiplication doesn't overflow MAX_UINTN, it will succeed + // + Multiplicand = 0xa122a; + Multiplier = 0xd23; + Result = 0; + Status = SafeUintnMult(Multiplicand, Multiplier, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL(0x844c9dbe, Result); + + // + // Otherwise should result in an error status + // + Multiplicand = 0xa122a; + Multiplier = 0xed23; + Status = SafeUintnMult(Multiplicand, Multiplier, &Result); + UT_ASSERT_EQUAL(RETURN_BUFFER_TOO_SMALL, Status); + + return UNIT_TEST_PASSED; +} + +UNIT_TEST_STATUS +EFIAPI +TestSafeIntnMult ( + IN UNIT_TEST_CONTEXT Context + ) +{ + EFI_STATUS Status; + INTN Multiplicand; + INTN Multiplier; + INTN Result; + + // + // If the result of multiplication doesn't overflow MAX_INTN and doesn't + // underflow MIN_UINTN, it will succeed + // + Multiplicand = 0x123456; + Multiplier = 0x678; + Result = 0; + Status = SafeIntnMult(Multiplicand, Multiplier, &Result); + UT_ASSERT_NOT_EFI_ERROR(Status); + UT_ASSERT_EQUAL(0x75c28c50, Result); + + // + // Otherwise should result in an error status + // + Multiplicand = 0x123456; + Multiplier = 0xabc; + Status = SafeIntnMult(Multiplicand, Multiplier, &Result); + UT_ASSERT_EQUAL(RETURN_BUFFER_TOO_SMALL, Status); + + return UNIT_TEST_PASSED; +} |