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Diffstat (limited to 'MdePkg/Test/GoogleTest/Library/BaseSafeIntLib/SafeIntLibUintnIntnUnitTests64.cpp')
| -rw-r--r-- | MdePkg/Test/GoogleTest/Library/BaseSafeIntLib/SafeIntLibUintnIntnUnitTests64.cpp | 429 |
1 files changed, 429 insertions, 0 deletions
diff --git a/MdePkg/Test/GoogleTest/Library/BaseSafeIntLib/SafeIntLibUintnIntnUnitTests64.cpp b/MdePkg/Test/GoogleTest/Library/BaseSafeIntLib/SafeIntLibUintnIntnUnitTests64.cpp new file mode 100644 index 000000000000..bce59b57d887 --- /dev/null +++ b/MdePkg/Test/GoogleTest/Library/BaseSafeIntLib/SafeIntLibUintnIntnUnitTests64.cpp @@ -0,0 +1,429 @@ +/** @file + x64-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 <gtest/gtest.h> +extern "C" { + #include <Base.h> + #include <Library/SafeIntLib.h> +} + +TEST (ConversionTestSuite, TestSafeInt32ToUintn) { + RETURN_STATUS Status; + INT32 Operand; + UINTN Result; + + // + // If Operand is non-negative, then it's a cast + // + Operand = 0x5bababab; + Result = 0; + Status = SafeInt32ToUintn (Operand, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ ((UINTN)0x5bababab, Result); + + // + // Otherwise should result in an error status + // + Operand = (-1537977259); + Status = SafeInt32ToUintn (Operand, &Result); + ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status); +} + +TEST (ConversionTestSuite, TestSafeUint32ToIntn) { + RETURN_STATUS Status; + UINT32 Operand; + INTN Result; + + // + // For x64, INTN is same as INT64 which is a superset of INT32 + // This is just a cast then, and it'll never fail + // + + // + // If Operand is non-negative, then it's a cast + // + Operand = 0xabababab; + Result = 0; + Status = SafeUint32ToIntn (Operand, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ (0xabababab, Result); +} + +TEST (ConversionTestSuite, TestSafeIntnToInt32) { + RETURN_STATUS Status; + INTN Operand; + INT32 Result; + + // + // If Operand is between MIN_INT32 and MAX_INT32 inclusive, then it's a cast + // + Operand = 0x5bababab; + Result = 0; + Status = SafeIntnToInt32 (Operand, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ (0x5bababab, Result); + + Operand = (-1537977259); + Status = SafeIntnToInt32 (Operand, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ ((-1537977259), Result); + + // + // Otherwise should result in an error status + // + Operand = (0x5babababefefefef); + Status = SafeIntnToInt32 (Operand, &Result); + ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status); + + Operand = (-6605562033422200815); + Status = SafeIntnToInt32 (Operand, &Result); + ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status); +} + +TEST (ConversionTestSuite, TestSafeIntnToUint32) { + RETURN_STATUS Status; + INTN Operand; + UINT32 Result; + + // + // If Operand is between 0 and MAX_UINT32 inclusive, then it's a cast + // + Operand = 0xabababab; + Result = 0; + Status = SafeIntnToUint32 (Operand, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ (0xabababab, Result); + + // + // Otherwise should result in an error status + // + Operand = (0x5babababefefefef); + Status = SafeIntnToUint32 (Operand, &Result); + ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status); + + Operand = (-6605562033422200815); + Status = SafeIntnToUint32 (Operand, &Result); + ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status); +} + +TEST (ConversionTestSuite, TestSafeUintnToUint32) { + RETURN_STATUS Status; + UINTN Operand; + UINT32 Result; + + // + // If Operand is <= MAX_UINT32, then it's a cast + // + Operand = 0xabababab; + Result = 0; + Status = SafeUintnToUint32 (Operand, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ (0xabababab, Result); + + // + // Otherwise should result in an error status + // + Operand = (0xababababefefefef); + Status = SafeUintnToUint32 (Operand, &Result); + ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status); +} + +TEST (ConversionTestSuite, TestSafeUintnToIntn) { + RETURN_STATUS Status; + UINTN Operand; + INTN Result; + + // + // If Operand is <= MAX_INTN (0x7fff_ffff_ffff_ffff), then it's a cast + // + Operand = 0x5babababefefefef; + Result = 0; + Status = SafeUintnToIntn (Operand, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ (0x5babababefefefef, Result); + + // + // Otherwise should result in an error status + // + Operand = (0xababababefefefef); + Status = SafeUintnToIntn (Operand, &Result); + ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status); +} + +TEST (ConversionTestSuite, TestSafeUintnToInt64) { + RETURN_STATUS Status; + UINTN Operand; + INT64 Result; + + // + // If Operand is <= MAX_INT64, then it's a cast + // + Operand = 0x5babababefefefef; + Result = 0; + Status = SafeUintnToInt64 (Operand, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ (0x5babababefefefef, Result); + + // + // Otherwise should result in an error status + // + Operand = (0xababababefefefef); + Status = SafeUintnToInt64 (Operand, &Result); + ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status); +} + +TEST (ConversionTestSuite, TestSafeInt64ToIntn) { + RETURN_STATUS Status; + INT64 Operand; + INTN Result; + + // + // INTN is same as INT64 in x64, so this is just a cast + // + Operand = 0x5babababefefefef; + Result = 0; + Status = SafeInt64ToIntn (Operand, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ (0x5babababefefefef, Result); +} + +TEST (ConversionTestSuite, TestSafeInt64ToUintn) { + RETURN_STATUS Status; + INT64 Operand; + UINTN Result; + + // + // If Operand is non-negative, then it's a cast + // + Operand = 0x5babababefefefef; + Result = 0; + Status = SafeInt64ToUintn (Operand, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ ((UINTN)0x5babababefefefef, Result); + + // + // Otherwise should result in an error status + // + Operand = (-6605562033422200815); + Status = SafeInt64ToUintn (Operand, &Result); + ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status); +} + +TEST (ConversionTestSuite, TestSafeUint64ToIntn) { + RETURN_STATUS Status; + UINT64 Operand; + INTN Result; + + // + // If Operand is <= MAX_INTN (0x7fff_ffff_ffff_ffff), then it's a cast + // + Operand = 0x5babababefefefef; + Result = 0; + Status = SafeUint64ToIntn (Operand, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ (0x5babababefefefef, Result); + + // + // Otherwise should result in an error status + // + Operand = (0xababababefefefef); + Status = SafeUint64ToIntn (Operand, &Result); + ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status); +} + +TEST (ConversionTestSuite, TestSafeUint64ToUintn) { + RETURN_STATUS Status; + UINT64 Operand; + UINTN Result; + + // + // UINTN is same as UINT64 in x64, so this is just a cast + // + Operand = 0xababababefefefef; + Result = 0; + Status = SafeUint64ToUintn (Operand, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ (0xababababefefefef, Result); +} + +TEST (AdditionSubtractionTestSuite, TestSafeUintnAdd) { + RETURN_STATUS Status; + UINTN Augend; + UINTN Addend; + UINTN Result; + + // + // If the result of addition doesn't overflow MAX_UINTN, then it's addition + // + Augend = 0x3a3a3a3a12121212; + Addend = 0x3a3a3a3a12121212; + Result = 0; + Status = SafeUintnAdd (Augend, Addend, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ ((UINTN)0x7474747424242424, Result); + + // + // Otherwise should result in an error status + // + Augend = 0xababababefefefef; + Addend = 0xbcbcbcbcdededede; + Status = SafeUintnAdd (Augend, Addend, &Result); + ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status); +} + +TEST (AdditionSubtractionTestSuite, TestSafeIntnAdd) { + RETURN_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 = 0x3a3a3a3a3a3a3a3a; + Addend = 0x3a3a3a3a3a3a3a3a; + Result = 0; + Status = SafeIntnAdd (Augend, Addend, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ (0x7474747474747474, Result); + + Augend = (-4195730024608447034); + Addend = (-4195730024608447034); + Status = SafeIntnAdd (Augend, Addend, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ ((-8391460049216894068), Result); + + // + // Otherwise should result in an error status + // + Augend = 0x5a5a5a5a5a5a5a5a; + Addend = 0x5a5a5a5a5a5a5a5a; + Status = SafeIntnAdd (Augend, Addend, &Result); + ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status); + + Augend = (-6510615555426900570); + Addend = (-6510615555426900570); + Status = SafeIntnAdd (Augend, Addend, &Result); + ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status); +} + +TEST (AdditionSubtractionTestSuite, TestSafeUintnSub) { + RETURN_STATUS Status; + UINTN Minuend; + UINTN Subtrahend; + UINTN Result; + + // + // If Minuend >= Subtrahend, then it's subtraction + // + Minuend = 0x5a5a5a5a5a5a5a5a; + Subtrahend = 0x3b3b3b3b3b3b3b3b; + Result = 0; + Status = SafeUintnSub (Minuend, Subtrahend, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ ((UINTN)0x1f1f1f1f1f1f1f1f, Result); + + // + // Otherwise should result in an error status + // + Minuend = 0x5a5a5a5a5a5a5a5a; + Subtrahend = 0x6d6d6d6d6d6d6d6d; + Status = SafeUintnSub (Minuend, Subtrahend, &Result); + ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status); +} + +TEST (AdditionSubtractionTestSuite, TestSafeIntnSub) { + RETURN_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 = 0x5a5a5a5a5a5a5a5a; + Subtrahend = 0x3a3a3a3a3a3a3a3a; + Result = 0; + Status = SafeIntnSub (Minuend, Subtrahend, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ (0x2020202020202020, Result); + + Minuend = 0x3a3a3a3a3a3a3a3a; + Subtrahend = 0x5a5a5a5a5a5a5a5a; + Status = SafeIntnSub (Minuend, Subtrahend, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ ((-2314885530818453536), Result); + + // + // Otherwise should result in an error status + // + Minuend = (-8825501086245354106); + Subtrahend = 8825501086245354106; + Status = SafeIntnSub (Minuend, Subtrahend, &Result); + ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status); + + Minuend = (8825501086245354106); + Subtrahend = (-8825501086245354106); + Status = SafeIntnSub (Minuend, Subtrahend, &Result); + ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status); +} + +TEST (MultiplicationTestSuite, TestSafeUintnMult) { + RETURN_STATUS Status; + UINTN Multiplicand; + UINTN Multiplier; + UINTN Result; + + // + // If the result of multiplication doesn't overflow MAX_UINTN, it will succeed + // + Multiplicand = 0x123456789a; + Multiplier = 0x1234567; + Result = 0; + Status = SafeUintnMult (Multiplicand, Multiplier, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ ((UINTN)0x14b66db9745a07f6, Result); + + // + // Otherwise should result in an error status + // + Multiplicand = 0x123456789a; + Multiplier = 0x12345678; + Status = SafeUintnMult (Multiplicand, Multiplier, &Result); + ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status); +} + +TEST (MultiplicationTestSuite, TestSafeIntnMult) { + RETURN_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 = 0x123456789; + Multiplier = 0x6789abcd; + Result = 0; + Status = SafeIntnMult (Multiplicand, Multiplier, &Result); + ASSERT_EQ (Status, RETURN_SUCCESS); + ASSERT_EQ (0x75cd9045220d6bb5, Result); + + // + // Otherwise should result in an error status + // + Multiplicand = 0x123456789; + Multiplier = 0xa789abcd; + Status = SafeIntnMult (Multiplicand, Multiplier, &Result); + ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status); +} |