67 lines
1.9 KiB
C++
67 lines
1.9 KiB
C++
//===-- VASprintfTest.cpp -------------------------------------------------===//
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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 "lldb/Utility/VASPrintf.h"
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#include "llvm/ADT/SmallString.h"
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#include "gtest/gtest.h"
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#include <locale.h>
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#if defined (_WIN32)
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#define TEST_ENCODING ".932" // On Windows, test codepage 932
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#else
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#define TEST_ENCODING "C" // ...otherwise, any widely available uni-byte LC
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#endif
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using namespace lldb_private;
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using namespace llvm;
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static bool Sprintf(llvm::SmallVectorImpl<char> &Buffer, const char *Fmt, ...) {
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va_list args;
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va_start(args, Fmt);
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bool Result = VASprintf(Buffer, Fmt, args);
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va_end(args);
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return Result;
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}
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TEST(VASprintfTest, NoBufferResize) {
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std::string TestStr("small");
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llvm::SmallString<32> BigBuffer;
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ASSERT_TRUE(Sprintf(BigBuffer, "%s", TestStr.c_str()));
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EXPECT_STREQ(TestStr.c_str(), BigBuffer.c_str());
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EXPECT_EQ(TestStr.size(), BigBuffer.size());
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}
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TEST(VASprintfTest, BufferResize) {
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std::string TestStr("bigger");
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llvm::SmallString<4> SmallBuffer;
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ASSERT_TRUE(Sprintf(SmallBuffer, "%s", TestStr.c_str()));
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EXPECT_STREQ(TestStr.c_str(), SmallBuffer.c_str());
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EXPECT_EQ(TestStr.size(), SmallBuffer.size());
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}
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TEST(VASprintfTest, EncodingError) {
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// Save the current locale first.
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std::string Current(::setlocale(LC_ALL, nullptr));
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// Ensure tested locale is successfully set
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ASSERT_TRUE(setlocale(LC_ALL, TEST_ENCODING));
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wchar_t Invalid[2];
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Invalid[0] = 0x100;
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Invalid[1] = 0;
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llvm::SmallString<32> Buffer;
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EXPECT_FALSE(Sprintf(Buffer, "%ls", Invalid));
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EXPECT_EQ("<Encoding error>", Buffer);
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// Ensure we've restored the original locale once tested
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ASSERT_TRUE(setlocale(LC_ALL, Current.c_str()));
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}
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