144 lines
5.5 KiB
C++
Executable File
144 lines
5.5 KiB
C++
Executable File
//===- unittest/DebugInfo/CodeView/GUIDFormatTest.cpp - GUID formatting ---===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/DebugInfo/CodeView/Formatters.h"
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#include "llvm/DebugInfo/CodeView/GUID.h"
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#include "llvm/Support/FormatVariadic.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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using namespace llvm::codeview;
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// Variant 1 UUIDs, nowadays the most common variant, are encoded in a
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// big-endian format.
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// For example, 00112233-4455-6677-8899-aabbccddeeff is encoded as the bytes
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// 00 11 22 33 44 55 66 77 88 99 aa bb cc dd ee ff
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//
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// Variant 2 UUIDs, historically used in Microsoft's COM/OLE libraries, use a
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// mixed-endian format, whereby the first three components of the UUID are
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// little-endian, and the last two are big-endian.
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// For example, 00112233-4455-6677-8899-aabbccddeeff is encoded as the bytes
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// 33 22 11 00 55 44 77 66 88 99 aa bb cc dd ee ff.
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//
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// Note: Only Variant 2 UUIDs are tested.
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namespace {
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using GuidPair = std::pair<StringRef, GUID>;
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using GuidData = SmallVector<GuidPair>;
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void checkData(GuidData &Data) {
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for (auto Item : Data) {
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std::string GuidText(formatv("{0}", Item.second).str());
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StringRef Scalar(GuidText);
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// GUID strings are 38 characters long.
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EXPECT_EQ(Scalar.size(), size_t(38));
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// GUID must be enclosed in {}
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EXPECT_EQ(Scalar.front(), '{');
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EXPECT_EQ(Scalar.back(), '}');
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Scalar = Scalar.substr(1, Scalar.size() - 2);
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SmallVector<StringRef, 6> Component;
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Scalar.split(Component, '-', 5);
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// GUID must have 5 components.
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EXPECT_EQ(Component.size(), size_t(5));
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// GUID components are properly delineated with dashes.
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EXPECT_EQ(Scalar[8], '-');
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EXPECT_EQ(Scalar[13], '-');
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EXPECT_EQ(Scalar[18], '-');
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EXPECT_EQ(Scalar[23], '-');
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// GUID only contains hex digits.
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struct {
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support::ulittle32_t Data0;
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support::ulittle16_t Data1;
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support::ulittle16_t Data2;
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support::ubig16_t Data3;
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support::ubig64_t Data4;
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} G = {};
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EXPECT_TRUE(to_integer(Component[0], G.Data0, 16));
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EXPECT_TRUE(to_integer(Component[1], G.Data1, 16));
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EXPECT_TRUE(to_integer(Component[2], G.Data2, 16));
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EXPECT_TRUE(to_integer(Component[3], G.Data3, 16));
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EXPECT_TRUE(to_integer(Component[4], G.Data4, 16));
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// Check the values are the same.
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EXPECT_EQ(Scalar, Item.first);
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}
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}
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TEST(GUIDFormatTest, ValidateFormat) {
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// Shifting 2 (0x00)
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GuidData Data = {
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// Non-zero values in all components.
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{"11223344-5566-7788-99AA-BBCCDDEEFFAA",
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{0x44, 0x33, 0x22, 0x11, 0x66, 0x55, 0x88, 0x77, 0x99, 0xaa, 0xbb, 0xcc,
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0xdd, 0xee, 0xff, 0xaa}},
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// Zero values in all components.
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{"00000000-0000-0000-0000-000000000000",
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00}},
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// Shift 2 (0x00) across all components
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{"00003344-5566-7788-99AA-BBCCDDEEFFAA",
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{0x44, 0x33, 0x00, 0x00, 0x66, 0x55, 0x88, 0x77, 0x99, 0xaa, 0xbb, 0xcc,
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0xdd, 0xee, 0xff, 0xaa}},
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{"11000044-5566-7788-99AA-BBCCDDEEFFAA",
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{0x44, 0x00, 0x00, 0x11, 0x66, 0x55, 0x88, 0x77, 0x99, 0xaa, 0xbb, 0xcc,
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0xdd, 0xee, 0xff, 0xaa}},
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{"11220000-5566-7788-99AA-BBCCDDEEFFAA",
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{0x00, 0x00, 0x22, 0x11, 0x66, 0x55, 0x88, 0x77, 0x99, 0xaa, 0xbb, 0xcc,
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0xdd, 0xee, 0xff, 0xaa}},
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{"11223300-0066-7788-99AA-BBCCDDEEFFAA",
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{0x00, 0x33, 0x22, 0x11, 0x66, 0x00, 0x88, 0x77, 0x99, 0xaa, 0xbb, 0xcc,
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0xdd, 0xee, 0xff, 0xaa}},
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{"11223344-0000-7788-99AA-BBCCDDEEFFAA",
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{0x44, 0x33, 0x22, 0x11, 0x00, 0x00, 0x88, 0x77, 0x99, 0xaa, 0xbb, 0xcc,
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0xdd, 0xee, 0xff, 0xaa}},
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{"11223344-5500-0088-99AA-BBCCDDEEFFAA",
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{0x44, 0x33, 0x22, 0x11, 0x00, 0x55, 0x88, 0x00, 0x99, 0xaa, 0xbb, 0xcc,
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0xdd, 0xee, 0xff, 0xaa}},
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{"11223344-5566-0000-99AA-BBCCDDEEFFAA",
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{0x44, 0x33, 0x22, 0x11, 0x66, 0x55, 0x00, 0x00, 0x99, 0xaa, 0xbb, 0xcc,
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0xdd, 0xee, 0xff, 0xaa}},
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{"11223344-5566-7700-00AA-BBCCDDEEFFAA",
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{0x44, 0x33, 0x22, 0x11, 0x66, 0x55, 0x00, 0x77, 0x00, 0xaa, 0xbb, 0xcc,
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0xdd, 0xee, 0xff, 0xaa}},
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{"11223344-5566-7788-0000-BBCCDDEEFFAA",
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{0x44, 0x33, 0x22, 0x11, 0x66, 0x55, 0x88, 0x77, 0x00, 0x00, 0xbb, 0xcc,
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0xdd, 0xee, 0xff, 0xaa}},
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{"11223344-5566-7788-9900-00CCDDEEFFAA",
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{0x44, 0x33, 0x22, 0x11, 0x66, 0x55, 0x88, 0x77, 0x99, 0x00, 0x00, 0xcc,
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0xdd, 0xee, 0xff, 0xaa}},
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{"11223344-5566-7788-99AA-0000DDEEFFAA",
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{0x44, 0x33, 0x22, 0x11, 0x66, 0x55, 0x88, 0x77, 0x99, 0xaa, 0x00, 0x00,
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0xdd, 0xee, 0xff, 0xaa}},
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{"11223344-5566-7788-99AA-BB0000EEFFAA",
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{0x44, 0x33, 0x22, 0x11, 0x66, 0x55, 0x88, 0x77, 0x99, 0xaa, 0xbb, 0x00,
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0x00, 0xee, 0xff, 0xaa}},
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{"11223344-5566-7788-99AA-BBCC0000FFAA",
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{0x44, 0x33, 0x22, 0x11, 0x66, 0x55, 0x88, 0x77, 0x99, 0xaa, 0xbb, 0xcc,
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0x00, 0x00, 0xff, 0xaa}},
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{"11223344-5566-7788-99AA-BBCCDD0000AA",
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{0x44, 0x33, 0x22, 0x11, 0x66, 0x55, 0x88, 0x77, 0x99, 0xaa, 0xbb, 0xcc,
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0xdd, 0x00, 0x00, 0xaa}},
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{"11223344-5566-7788-99AA-BBCCDDEE0000",
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{0x44, 0x33, 0x22, 0x11, 0x66, 0x55, 0x88, 0x77, 0x99, 0xaa, 0xbb, 0xcc,
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0xdd, 0xee, 0x00, 0x00}},
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};
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checkData(Data);
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}
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} // namespace
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