143 lines
5.3 KiB
C++
143 lines
5.3 KiB
C++
//===-- ScalarTest.cpp ------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "gtest/gtest.h"
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#include "lldb/Core/Scalar.h"
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#include "lldb/Utility/DataExtractor.h"
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#include "lldb/Utility/Endian.h"
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#include "lldb/Utility/Status.h"
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#include "lldb/Utility/StreamString.h"
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using namespace lldb_private;
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TEST(ScalarTest, RightShiftOperator) {
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int a = 0x00001000;
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int b = 0xFFFFFFFF;
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int c = 4;
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Scalar a_scalar(a);
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Scalar b_scalar(b);
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Scalar c_scalar(c);
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ASSERT_EQ(a >> c, a_scalar >> c_scalar);
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ASSERT_EQ(b >> c, b_scalar >> c_scalar);
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}
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TEST(ScalarTest, GetBytes) {
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int a = 0x01020304;
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long long b = 0x0102030405060708LL;
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float c = 1234567.89e32;
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double d = 1234567.89e42;
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char e[16] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
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char f[32] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
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17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32};
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Scalar a_scalar(a);
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Scalar b_scalar(b);
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Scalar c_scalar(c);
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Scalar d_scalar(d);
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Scalar e_scalar;
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Scalar f_scalar;
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DataExtractor e_data(e, sizeof(e), endian::InlHostByteOrder(),
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sizeof(void *));
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Status e_error =
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e_scalar.SetValueFromData(e_data, lldb::eEncodingUint, sizeof(e));
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DataExtractor f_data(f, sizeof(f), endian::InlHostByteOrder(),
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sizeof(void *));
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Status f_error =
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f_scalar.SetValueFromData(f_data, lldb::eEncodingUint, sizeof(f));
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ASSERT_EQ(0, memcmp(&a, a_scalar.GetBytes(), sizeof(a)));
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ASSERT_EQ(0, memcmp(&b, b_scalar.GetBytes(), sizeof(b)));
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ASSERT_EQ(0, memcmp(&c, c_scalar.GetBytes(), sizeof(c)));
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ASSERT_EQ(0, memcmp(&d, d_scalar.GetBytes(), sizeof(d)));
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ASSERT_EQ(0, e_error.Fail());
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ASSERT_EQ(0, memcmp(e, e_scalar.GetBytes(), sizeof(e)));
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ASSERT_EQ(0, f_error.Fail());
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ASSERT_EQ(0, memcmp(f, f_scalar.GetBytes(), sizeof(f)));
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}
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TEST(ScalarTest, CastOperations) {
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long long a = 0xf1f2f3f4f5f6f7f8LL;
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Scalar a_scalar(a);
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ASSERT_EQ((signed char)a, a_scalar.SChar());
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ASSERT_EQ((unsigned char)a, a_scalar.UChar());
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ASSERT_EQ((signed short)a, a_scalar.SShort());
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ASSERT_EQ((unsigned short)a, a_scalar.UShort());
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ASSERT_EQ((signed int)a, a_scalar.SInt());
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ASSERT_EQ((unsigned int)a, a_scalar.UInt());
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ASSERT_EQ((signed long)a, a_scalar.SLong());
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ASSERT_EQ((unsigned long)a, a_scalar.ULong());
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ASSERT_EQ((signed long long)a, a_scalar.SLongLong());
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ASSERT_EQ((unsigned long long)a, a_scalar.ULongLong());
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}
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TEST(ScalarTest, ExtractBitfield) {
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uint32_t len = sizeof(long long) * 8;
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long long a1 = 0xf1f2f3f4f5f6f7f8LL;
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long long b1 = 0xff1f2f3f4f5f6f7fLL;
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Scalar s_scalar(a1);
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ASSERT_TRUE(s_scalar.ExtractBitfield(0, 0));
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ASSERT_EQ(0, memcmp(&a1, s_scalar.GetBytes(), sizeof(a1)));
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ASSERT_TRUE(s_scalar.ExtractBitfield(len, 0));
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ASSERT_EQ(0, memcmp(&a1, s_scalar.GetBytes(), sizeof(a1)));
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ASSERT_TRUE(s_scalar.ExtractBitfield(len - 4, 4));
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ASSERT_EQ(0, memcmp(&b1, s_scalar.GetBytes(), sizeof(b1)));
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unsigned long long a2 = 0xf1f2f3f4f5f6f7f8ULL;
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unsigned long long b2 = 0x0f1f2f3f4f5f6f7fULL;
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Scalar u_scalar(a2);
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ASSERT_TRUE(u_scalar.ExtractBitfield(0, 0));
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ASSERT_EQ(0, memcmp(&a2, u_scalar.GetBytes(), sizeof(a2)));
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ASSERT_TRUE(u_scalar.ExtractBitfield(len, 0));
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ASSERT_EQ(0, memcmp(&a2, u_scalar.GetBytes(), sizeof(a2)));
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ASSERT_TRUE(u_scalar.ExtractBitfield(len - 4, 4));
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ASSERT_EQ(0, memcmp(&b2, u_scalar.GetBytes(), sizeof(b2)));
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}
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template <typename T> static std::string ScalarGetValue(T value) {
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StreamString stream;
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Scalar(value).GetValue(&stream, false);
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return stream.GetString();
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}
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TEST(ScalarTest, GetValue) {
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EXPECT_EQ("12345", ScalarGetValue<signed short>(12345));
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EXPECT_EQ("-12345", ScalarGetValue<signed short>(-12345));
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EXPECT_EQ("12345", ScalarGetValue<unsigned short>(12345));
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EXPECT_EQ(std::to_string(std::numeric_limits<unsigned short>::max()),
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ScalarGetValue(std::numeric_limits<unsigned short>::max()));
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EXPECT_EQ("12345", ScalarGetValue<signed int>(12345));
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EXPECT_EQ("-12345", ScalarGetValue<signed int>(-12345));
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EXPECT_EQ("12345", ScalarGetValue<unsigned int>(12345));
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EXPECT_EQ(std::to_string(std::numeric_limits<unsigned int>::max()),
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ScalarGetValue(std::numeric_limits<unsigned int>::max()));
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EXPECT_EQ("12345678", ScalarGetValue<signed long>(12345678L));
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EXPECT_EQ("-12345678", ScalarGetValue<signed long>(-12345678L));
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EXPECT_EQ("12345678", ScalarGetValue<unsigned long>(12345678UL));
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EXPECT_EQ(std::to_string(std::numeric_limits<unsigned long>::max()),
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ScalarGetValue(std::numeric_limits<unsigned long>::max()));
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EXPECT_EQ("1234567890123", ScalarGetValue<signed long long>(1234567890123LL));
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EXPECT_EQ("-1234567890123",
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ScalarGetValue<signed long long>(-1234567890123LL));
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EXPECT_EQ("1234567890123",
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ScalarGetValue<unsigned long long>(1234567890123ULL));
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EXPECT_EQ(std::to_string(std::numeric_limits<unsigned long long>::max()),
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ScalarGetValue(std::numeric_limits<unsigned long long>::max()));
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}
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TEST(ScalarTest, Division) {
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Scalar lhs(5.0);
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Scalar rhs(2.0);
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Scalar r = lhs / rhs;
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EXPECT_TRUE(r.IsValid());
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EXPECT_EQ(r, Scalar(2.5));
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}
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