diff options
Diffstat (limited to 'MdePkg/Test/GoogleTest/Library/BaseSafeIntLib/SafeIntLibUintnIntnUnitTests32.cpp')
| -rw-r--r-- | MdePkg/Test/GoogleTest/Library/BaseSafeIntLib/SafeIntLibUintnIntnUnitTests32.cpp | 425 |
1 files changed, 425 insertions, 0 deletions
diff --git a/MdePkg/Test/GoogleTest/Library/BaseSafeIntLib/SafeIntLibUintnIntnUnitTests32.cpp b/MdePkg/Test/GoogleTest/Library/BaseSafeIntLib/SafeIntLibUintnIntnUnitTests32.cpp new file mode 100644 index 0000000000..6fbf302c1c --- /dev/null +++ b/MdePkg/Test/GoogleTest/Library/BaseSafeIntLib/SafeIntLibUintnIntnUnitTests32.cpp @@ -0,0 +1,425 @@ +/** @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 <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;
+
+ //
+ // If Operand is <= MAX_INTN, then it's a cast
+ //
+ Operand = 0x5bababab;
+ Result = 0;
+ Status = SafeUint32ToIntn (Operand, &Result);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ (0x5bababab, Result);
+
+ //
+ // Otherwise should result in an error status
+ //
+ Operand = (0xabababab);
+ Status = SafeUint32ToIntn (Operand, &Result);
+ ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status);
+}
+
+TEST(ConversionTestSuite, TestSafeIntnToInt32) {
+ RETURN_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);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ (0x5bababab, Result);
+}
+
+TEST(ConversionTestSuite, TestSafeIntnToUint32) {
+ RETURN_STATUS Status;
+ INTN Operand;
+ UINT32 Result;
+
+ //
+ // If Operand is non-negative, then it's a cast
+ //
+ Operand = 0x5bababab;
+ Result = 0;
+ Status = SafeIntnToUint32 (Operand, &Result);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ ((UINT32)0x5bababab, Result);
+
+ //
+ // Otherwise should result in an error status
+ //
+ Operand = (-1537977259);
+ Status = SafeIntnToUint32 (Operand, &Result);
+ ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status);
+}
+
+TEST(ConversionTestSuite, TestSafeUintnToUint32) {
+ RETURN_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);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ (0xabababab, Result);
+}
+
+TEST(ConversionTestSuite, TestSafeUintnToIntn) {
+ RETURN_STATUS Status;
+ UINTN Operand;
+ INTN Result;
+
+ //
+ // If Operand is <= MAX_INTN, then it's a cast
+ //
+ Operand = 0x5bababab;
+ Result = 0;
+ Status = SafeUintnToIntn (Operand, &Result);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ (0x5bababab, Result);
+
+ //
+ // Otherwise should result in an error status
+ //
+ Operand = (0xabababab);
+ Status = SafeUintnToIntn (Operand, &Result);
+ ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status);
+}
+
+TEST(ConversionTestSuite, TestSafeUintnToInt64) {
+ RETURN_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);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ (0xabababab, Result);
+}
+
+TEST(ConversionTestSuite, TestSafeInt64ToIntn) {
+ RETURN_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);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ (0x5bababab, Result);
+
+ Operand = (-1537977259);
+ Status = SafeInt64ToIntn (Operand, &Result);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ ((-1537977259), Result);
+
+ //
+ // Otherwise should result in an error status
+ //
+ Operand = (0x5babababefefefef);
+ Status = SafeInt64ToIntn (Operand, &Result);
+ ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status);
+
+ Operand = (-6605562033422200815);
+ Status = SafeInt64ToIntn (Operand, &Result);
+ ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status);
+}
+
+TEST(ConversionTestSuite, TestSafeInt64ToUintn) {
+ RETURN_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);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ (0xabababab, Result);
+
+ //
+ // Otherwise should result in an error status
+ //
+ Operand = (0x5babababefefefef);
+ Status = SafeInt64ToUintn (Operand, &Result);
+ ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, 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, then it's a cast
+ //
+ Operand = 0x5bababab;
+ Result = 0;
+ Status = SafeUint64ToIntn (Operand, &Result);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ (0x5bababab, 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;
+
+ //
+ // If Operand is <= MAX_UINTN, then it's a cast
+ //
+ Operand = 0xabababab;
+ Result = 0;
+ Status = SafeUint64ToUintn (Operand, &Result);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ (0xabababab, Result);
+
+ //
+ // Otherwise should result in an error status
+ //
+ Operand = (0xababababefefefef);
+ Status = SafeUint64ToUintn (Operand, &Result);
+ ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status);
+}
+
+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 = 0x3a3a3a3a;
+ Addend = 0x3a3a3a3a;
+ Result = 0;
+ Status = SafeUintnAdd (Augend, Addend, &Result);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ ((UINTN)0x74747474, Result);
+
+ //
+ // Otherwise should result in an error status
+ //
+ Augend = 0xabababab;
+ Addend = 0xbcbcbcbc;
+ 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 = 0x3a3a3a3a;
+ Addend = 0x3a3a3a3a;
+ Result = 0;
+ Status = SafeIntnAdd (Augend, Addend, &Result);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ (0x74747474, Result);
+
+ Augend = (-976894522);
+ Addend = (-976894522);
+ Status = SafeIntnAdd (Augend, Addend, &Result);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ ((-1953789044), Result);
+
+ //
+ // Otherwise should result in an error status
+ //
+ Augend = 0x5a5a5a5a;
+ Addend = 0x5a5a5a5a;
+ Status = SafeIntnAdd (Augend, Addend, &Result);
+ ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status);
+
+ Augend = (-1515870810);
+ Addend = (-1515870810);
+ 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 = 0x5a5a5a5a;
+ Subtrahend = 0x3b3b3b3b;
+ Result = 0;
+ Status = SafeUintnSub (Minuend, Subtrahend, &Result);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ ((UINTN)0x1f1f1f1f, Result);
+
+ //
+ // Otherwise should result in an error status
+ //
+ Minuend = 0x5a5a5a5a;
+ Subtrahend = 0x6d6d6d6d;
+ 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 = 0x5a5a5a5a;
+ Subtrahend = 0x3a3a3a3a;
+ Result = 0;
+ Status = SafeIntnSub (Minuend, Subtrahend, &Result);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ (0x20202020, Result);
+
+ Minuend = 0x3a3a3a3a;
+ Subtrahend = 0x5a5a5a5a;
+ Status = SafeIntnSub (Minuend, Subtrahend, &Result);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ ((-538976288), Result);
+
+ //
+ // Otherwise should result in an error status
+ //
+ Minuend = (-2054847098);
+ Subtrahend = 2054847098;
+ Status = SafeIntnSub (Minuend, Subtrahend, &Result);
+ ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status);
+
+ Minuend = (2054847098);
+ Subtrahend = (-2054847098);
+ 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 = 0xa122a;
+ Multiplier = 0xd23;
+ Result = 0;
+ Status = SafeUintnMult (Multiplicand, Multiplier, &Result);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ (0x844c9dbe, Result);
+
+ //
+ // Otherwise should result in an error status
+ //
+ Multiplicand = 0xa122a;
+ Multiplier = 0xed23;
+ 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 = 0x123456;
+ Multiplier = 0x678;
+ Result = 0;
+ Status = SafeIntnMult (Multiplicand, Multiplier, &Result);
+ ASSERT_EQ (Status, RETURN_SUCCESS);
+ ASSERT_EQ (0x75c28c50, Result);
+
+ //
+ // Otherwise should result in an error status
+ //
+ Multiplicand = 0x123456;
+ Multiplier = 0xabc;
+ Status = SafeIntnMult (Multiplicand, Multiplier, &Result);
+ ASSERT_EQ (RETURN_BUFFER_TOO_SMALL, Status);
+}
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