llvm-capstone/lldb/unittests/Utility/UUIDTest.cpp
Jim Ingham 5ad6ed0e55 Change the meaning of a UUID with all zeros for data.
Previously, depending on how you constructed a UUID from data or a
StringRef, an input value of all zeros was valid (e.g. setFromData)
or not (e.g. setFromOptionalData).  Since there was no way to tell
which interpretation to use, it was done somewhat inconsistently.
This standardizes the meaning of a UUID of all zeros to Not Valid,
and removes all the Optional methods and their uses, as well as the
static factories that supported them.

Differential Revision: https://reviews.llvm.org/D132191
2022-08-30 10:17:58 -07:00

89 lines
2.7 KiB
C++

//===-- UUIDTest.cpp ------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "gtest/gtest.h"
#include "lldb/Utility/UUID.h"
using namespace lldb_private;
TEST(UUIDTest, RelationalOperators) {
UUID empty;
UUID a16 = UUID("1234567890123456", 16);
UUID b16 = UUID("1234567890123457", 16);
UUID a20 = UUID("12345678901234567890", 20);
UUID b20 = UUID("12345678900987654321", 20);
EXPECT_EQ(empty, empty);
EXPECT_EQ(a16, a16);
EXPECT_EQ(a20, a20);
EXPECT_NE(a16, b16);
EXPECT_NE(a20, b20);
EXPECT_NE(a16, a20);
EXPECT_NE(empty, a16);
EXPECT_LT(empty, a16);
EXPECT_LT(a16, a20);
EXPECT_LT(a16, b16);
EXPECT_GT(a20, b20);
}
TEST(UUIDTest, Validity) {
UUID empty;
std::vector<uint8_t> zeroes(20, 0);
UUID a16 = UUID(zeroes.data(), 16);
UUID a20 = UUID(zeroes.data(), 20);
UUID from_str;
from_str.SetFromStringRef("00000000-0000-0000-0000-000000000000");
EXPECT_FALSE(empty);
EXPECT_FALSE(a16);
EXPECT_FALSE(a20);
EXPECT_FALSE(from_str);
}
TEST(UUIDTest, SetFromStringRef) {
UUID u;
EXPECT_TRUE(u.SetFromStringRef("404142434445464748494a4b4c4d4e4f"));
EXPECT_EQ(UUID("@ABCDEFGHIJKLMNO", 16), u);
EXPECT_TRUE(u.SetFromStringRef("40-41-42-43-4445464748494a4b4c4d4e4f"));
EXPECT_EQ(UUID("@ABCDEFGHIJKLMNO", 16), u);
EXPECT_TRUE(
u.SetFromStringRef("40-41-42-43-4445464748494a4b4c4d4e4f-50515253"));
EXPECT_EQ(UUID("@ABCDEFGHIJKLMNOPQRS", 20), u);
EXPECT_TRUE(u.SetFromStringRef("40-41-42-43-4445464748494a4b4c4d4e4f"));
EXPECT_FALSE(u.SetFromStringRef("40xxxxx"));
EXPECT_FALSE(u.SetFromStringRef(""));
EXPECT_EQ(UUID("@ABCDEFGHIJKLMNO", 16), u)
<< "uuid was changed by failed parse calls";
EXPECT_TRUE(u.SetFromStringRef("404142434445464748494a4b4c4d4e4f-50515253"));
EXPECT_EQ(UUID("@ABCDEFGHIJKLMNOPQRS", 20), u);
EXPECT_TRUE(u.SetFromStringRef("40414243"));
EXPECT_EQ(UUID("@ABCD", 4), u);
EXPECT_FALSE(u.SetFromStringRef("4"));
}
TEST(UUIDTest, StringConverion) {
EXPECT_EQ("40414243", UUID("@ABC", 4).GetAsString());
EXPECT_EQ("40414243-4445-4647", UUID("@ABCDEFG", 8).GetAsString());
EXPECT_EQ("40414243-4445-4647-4849-4A4B",
UUID("@ABCDEFGHIJK", 12).GetAsString());
EXPECT_EQ("40414243-4445-4647-4849-4A4B4C4D4E4F",
UUID("@ABCDEFGHIJKLMNO", 16).GetAsString());
EXPECT_EQ("40414243-4445-4647-4849-4A4B4C4D4E4F-50515253",
UUID("@ABCDEFGHIJKLMNOPQRS", 20).GetAsString());
}