459 lines
18 KiB
C++
459 lines
18 KiB
C++
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//===- llvm/unittest/Support/raw_ostream_test.cpp - raw_ostream tests -----===//
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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/SmallString.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Format.h"
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#include "llvm/Support/raw_ostream.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace {
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template<typename T> std::string printToString(const T &Value) {
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std::string res;
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{
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llvm::raw_string_ostream OS(res);
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OS.SetBuffered();
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OS << Value;
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}
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return res;
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}
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/// printToString - Print the given value to a stream which only has \arg
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/// BytesLeftInBuffer bytes left in the buffer. This is useful for testing edge
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/// cases in the buffer handling logic.
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template<typename T> std::string printToString(const T &Value,
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unsigned BytesLeftInBuffer) {
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// FIXME: This is relying on internal knowledge of how raw_ostream works to
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// get the buffer position right.
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SmallString<256> SVec;
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assert(BytesLeftInBuffer < 256 && "Invalid buffer count!");
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llvm::raw_svector_ostream OS(SVec);
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unsigned StartIndex = 256 - BytesLeftInBuffer;
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for (unsigned i = 0; i != StartIndex; ++i)
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OS << '?';
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OS << Value;
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return std::string(OS.str().substr(StartIndex));
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}
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template<typename T> std::string printToStringUnbuffered(const T &Value) {
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std::string res;
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llvm::raw_string_ostream OS(res);
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OS.SetUnbuffered();
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OS << Value;
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return res;
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}
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struct X {};
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raw_ostream &operator<<(raw_ostream &OS, const X &) { return OS << 'X'; }
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TEST(raw_ostreamTest, Types_Buffered) {
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// Char
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EXPECT_EQ("c", printToString('c'));
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// String
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EXPECT_EQ("hello", printToString("hello"));
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EXPECT_EQ("hello", printToString(std::string("hello")));
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// Int
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EXPECT_EQ("0", printToString(0));
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EXPECT_EQ("2425", printToString(2425));
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EXPECT_EQ("-2425", printToString(-2425));
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// Long long
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EXPECT_EQ("0", printToString(0LL));
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EXPECT_EQ("257257257235709", printToString(257257257235709LL));
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EXPECT_EQ("-257257257235709", printToString(-257257257235709LL));
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// Double
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EXPECT_EQ("1.100000e+00", printToString(1.1));
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// void*
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EXPECT_EQ("0x0", printToString((void*) nullptr));
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EXPECT_EQ("0xbeef", printToString((void*) 0xbeefLL));
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EXPECT_EQ("0xdeadbeef", printToString((void*) 0xdeadbeefLL));
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// Min and max.
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EXPECT_EQ("18446744073709551615", printToString(UINT64_MAX));
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EXPECT_EQ("-9223372036854775808", printToString(INT64_MIN));
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// X, checking free operator<<().
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EXPECT_EQ("X", printToString(X{}));
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}
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TEST(raw_ostreamTest, Types_Unbuffered) {
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// Char
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EXPECT_EQ("c", printToStringUnbuffered('c'));
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// String
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EXPECT_EQ("hello", printToStringUnbuffered("hello"));
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EXPECT_EQ("hello", printToStringUnbuffered(std::string("hello")));
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// Int
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EXPECT_EQ("0", printToStringUnbuffered(0));
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EXPECT_EQ("2425", printToStringUnbuffered(2425));
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EXPECT_EQ("-2425", printToStringUnbuffered(-2425));
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// Long long
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EXPECT_EQ("0", printToStringUnbuffered(0LL));
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EXPECT_EQ("257257257235709", printToStringUnbuffered(257257257235709LL));
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EXPECT_EQ("-257257257235709", printToStringUnbuffered(-257257257235709LL));
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// Double
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EXPECT_EQ("1.100000e+00", printToStringUnbuffered(1.1));
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// void*
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EXPECT_EQ("0x0", printToStringUnbuffered((void*) nullptr));
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EXPECT_EQ("0xbeef", printToStringUnbuffered((void*) 0xbeefLL));
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EXPECT_EQ("0xdeadbeef", printToStringUnbuffered((void*) 0xdeadbeefLL));
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// Min and max.
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EXPECT_EQ("18446744073709551615", printToStringUnbuffered(UINT64_MAX));
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EXPECT_EQ("-9223372036854775808", printToStringUnbuffered(INT64_MIN));
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// X, checking free operator<<().
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EXPECT_EQ("X", printToString(X{}));
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}
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TEST(raw_ostreamTest, BufferEdge) {
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EXPECT_EQ("1.20", printToString(format("%.2f", 1.2), 1));
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EXPECT_EQ("1.20", printToString(format("%.2f", 1.2), 2));
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EXPECT_EQ("1.20", printToString(format("%.2f", 1.2), 3));
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EXPECT_EQ("1.20", printToString(format("%.2f", 1.2), 4));
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EXPECT_EQ("1.20", printToString(format("%.2f", 1.2), 10));
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}
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TEST(raw_ostreamTest, TinyBuffer) {
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std::string Str;
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raw_string_ostream OS(Str);
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OS.SetBufferSize(1);
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OS << "hello";
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OS << 1;
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OS << 'w' << 'o' << 'r' << 'l' << 'd';
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EXPECT_EQ("hello1world", OS.str());
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}
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TEST(raw_ostreamTest, WriteEscaped) {
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std::string Str;
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Str = "";
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raw_string_ostream(Str).write_escaped("hi");
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EXPECT_EQ("hi", Str);
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Str = "";
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raw_string_ostream(Str).write_escaped("\\\t\n\"");
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EXPECT_EQ("\\\\\\t\\n\\\"", Str);
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Str = "";
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raw_string_ostream(Str).write_escaped("\1\10\200");
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EXPECT_EQ("\\001\\010\\200", Str);
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}
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TEST(raw_ostreamTest, Justify) {
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EXPECT_EQ("xyz ", printToString(left_justify("xyz", 6), 6));
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EXPECT_EQ("abc", printToString(left_justify("abc", 3), 3));
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EXPECT_EQ("big", printToString(left_justify("big", 1), 3));
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EXPECT_EQ(" xyz", printToString(right_justify("xyz", 6), 6));
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EXPECT_EQ("abc", printToString(right_justify("abc", 3), 3));
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EXPECT_EQ("big", printToString(right_justify("big", 1), 3));
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EXPECT_EQ(" on ", printToString(center_justify("on", 9), 9));
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EXPECT_EQ(" off ", printToString(center_justify("off", 10), 10));
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EXPECT_EQ("single ", printToString(center_justify("single", 7), 7));
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EXPECT_EQ("none", printToString(center_justify("none", 1), 4));
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EXPECT_EQ("none", printToString(center_justify("none", 1), 1));
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}
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TEST(raw_ostreamTest, FormatHex) {
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EXPECT_EQ("0x1234", printToString(format_hex(0x1234, 6), 6));
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EXPECT_EQ("0x001234", printToString(format_hex(0x1234, 8), 8));
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EXPECT_EQ("0x00001234", printToString(format_hex(0x1234, 10), 10));
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EXPECT_EQ("0x1234", printToString(format_hex(0x1234, 4), 6));
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EXPECT_EQ("0xff", printToString(format_hex(255, 4), 4));
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EXPECT_EQ("0xFF", printToString(format_hex(255, 4, true), 4));
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EXPECT_EQ("0x1", printToString(format_hex(1, 3), 3));
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EXPECT_EQ("0x12", printToString(format_hex(0x12, 3), 4));
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EXPECT_EQ("0x123", printToString(format_hex(0x123, 3), 5));
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EXPECT_EQ("FF", printToString(format_hex_no_prefix(0xFF, 2, true), 4));
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EXPECT_EQ("ABCD", printToString(format_hex_no_prefix(0xABCD, 2, true), 4));
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EXPECT_EQ("0xffffffffffffffff",
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printToString(format_hex(UINT64_MAX, 18), 18));
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EXPECT_EQ("0x8000000000000000",
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printToString(format_hex((INT64_MIN), 18), 18));
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}
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TEST(raw_ostreamTest, FormatDecimal) {
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EXPECT_EQ(" 0", printToString(format_decimal(0, 4), 4));
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EXPECT_EQ(" -1", printToString(format_decimal(-1, 4), 4));
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EXPECT_EQ(" -1", printToString(format_decimal(-1, 6), 6));
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EXPECT_EQ("1234567890", printToString(format_decimal(1234567890, 10), 10));
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EXPECT_EQ(" 9223372036854775807",
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printToString(format_decimal(INT64_MAX, 21), 21));
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EXPECT_EQ(" -9223372036854775808",
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printToString(format_decimal(INT64_MIN, 21), 21));
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}
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static std::string formatted_bytes_str(ArrayRef<uint8_t> Bytes,
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llvm::Optional<uint64_t> Offset = None,
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uint32_t NumPerLine = 16,
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uint8_t ByteGroupSize = 4) {
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std::string S;
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raw_string_ostream Str(S);
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Str << format_bytes(Bytes, Offset, NumPerLine, ByteGroupSize);
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Str.flush();
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return S;
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}
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static std::string format_bytes_with_ascii_str(ArrayRef<uint8_t> Bytes,
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Optional<uint64_t> Offset = None,
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uint32_t NumPerLine = 16,
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uint8_t ByteGroupSize = 4) {
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std::string S;
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raw_string_ostream Str(S);
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Str << format_bytes_with_ascii(Bytes, Offset, NumPerLine, ByteGroupSize);
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Str.flush();
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return S;
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}
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TEST(raw_ostreamTest, FormattedHexBytes) {
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std::vector<uint8_t> Buf = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i',
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'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r',
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's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0',
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'1', '2', '3', '4', '5', '6', '7', '8', '9'};
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ArrayRef<uint8_t> B(Buf);
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// Test invalid input.
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EXPECT_EQ("", formatted_bytes_str(ArrayRef<uint8_t>()));
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EXPECT_EQ("", format_bytes_with_ascii_str(ArrayRef<uint8_t>()));
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//----------------------------------------------------------------------
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// Test hex byte output with the default 4 byte groups
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//----------------------------------------------------------------------
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EXPECT_EQ("61", formatted_bytes_str(B.take_front()));
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EXPECT_EQ("61626364 65", formatted_bytes_str(B.take_front(5)));
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// Test that 16 bytes get written to a line correctly.
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EXPECT_EQ("61626364 65666768 696a6b6c 6d6e6f70",
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formatted_bytes_str(B.take_front(16)));
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// Test raw bytes with default 16 bytes per line wrapping.
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EXPECT_EQ("61626364 65666768 696a6b6c 6d6e6f70\n71",
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formatted_bytes_str(B.take_front(17)));
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// Test raw bytes with 1 bytes per line wrapping.
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EXPECT_EQ("61\n62\n63\n64\n65\n66",
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formatted_bytes_str(B.take_front(6), None, 1));
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// Test raw bytes with 7 bytes per line wrapping.
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EXPECT_EQ("61626364 656667\n68696a6b 6c6d6e\n6f7071",
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formatted_bytes_str(B.take_front(17), None, 7));
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// Test raw bytes with 8 bytes per line wrapping.
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EXPECT_EQ("61626364 65666768\n696a6b6c 6d6e6f70\n71",
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formatted_bytes_str(B.take_front(17), None, 8));
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//----------------------------------------------------------------------
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// Test hex byte output with the 1 byte groups
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//----------------------------------------------------------------------
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EXPECT_EQ("61 62 63 64 65",
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formatted_bytes_str(B.take_front(5), None, 16, 1));
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// Test that 16 bytes get written to a line correctly.
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EXPECT_EQ("61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f 70",
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formatted_bytes_str(B.take_front(16), None, 16, 1));
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// Test raw bytes with default 16 bytes per line wrapping.
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EXPECT_EQ("61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f 70\n71",
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formatted_bytes_str(B.take_front(17), None, 16, 1));
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// Test raw bytes with 7 bytes per line wrapping.
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EXPECT_EQ("61 62 63 64 65 66 67\n68 69 6a 6b 6c 6d 6e\n6f 70 71",
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formatted_bytes_str(B.take_front(17), None, 7, 1));
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// Test raw bytes with 8 bytes per line wrapping.
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EXPECT_EQ("61 62 63 64 65 66 67 68\n69 6a 6b 6c 6d 6e 6f 70\n71",
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formatted_bytes_str(B.take_front(17), None, 8, 1));
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//----------------------------------------------------------------------
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// Test hex byte output with the 2 byte groups
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//----------------------------------------------------------------------
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EXPECT_EQ("6162 6364 65", formatted_bytes_str(B.take_front(5), None, 16, 2));
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// Test that 16 bytes get written to a line correctly.
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EXPECT_EQ("6162 6364 6566 6768 696a 6b6c 6d6e 6f70",
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formatted_bytes_str(B.take_front(16), None, 16, 2));
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// Test raw bytes with default 16 bytes per line wrapping.
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EXPECT_EQ("6162 6364 6566 6768 696a 6b6c 6d6e 6f70\n71",
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formatted_bytes_str(B.take_front(17), None, 16, 2));
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// Test raw bytes with 7 bytes per line wrapping.
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EXPECT_EQ("6162 6364 6566 67\n6869 6a6b 6c6d 6e\n6f70 71",
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formatted_bytes_str(B.take_front(17), None, 7, 2));
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// Test raw bytes with 8 bytes per line wrapping.
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EXPECT_EQ("6162 6364 6566 6768\n696a 6b6c 6d6e 6f70\n71",
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formatted_bytes_str(B.take_front(17), None, 8, 2));
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//----------------------------------------------------------------------
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// Test hex bytes with offset with the default 4 byte groups.
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//----------------------------------------------------------------------
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EXPECT_EQ("0000: 61", formatted_bytes_str(B.take_front(), 0x0));
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EXPECT_EQ("1000: 61", formatted_bytes_str(B.take_front(), 0x1000));
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EXPECT_EQ("1000: 61\n1001: 62",
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formatted_bytes_str(B.take_front(2), 0x1000, 1));
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//----------------------------------------------------------------------
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// Test hex bytes with ASCII with the default 4 byte groups.
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//----------------------------------------------------------------------
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EXPECT_EQ("61626364 65666768 696a6b6c 6d6e6f70 |abcdefghijklmnop|",
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format_bytes_with_ascii_str(B.take_front(16)));
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EXPECT_EQ("61626364 65666768 |abcdefgh|\n"
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"696a6b6c 6d6e6f70 |ijklmnop|",
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format_bytes_with_ascii_str(B.take_front(16), None, 8));
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EXPECT_EQ("61626364 65666768 |abcdefgh|\n696a6b6c |ijkl|",
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format_bytes_with_ascii_str(B.take_front(12), None, 8));
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std::vector<uint8_t> Unprintable = {'a', '\x1e', 'b', '\x1f'};
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// Make sure the ASCII is still lined up correctly when fewer bytes than 16
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// bytes per line are available. The ASCII should still be aligned as if 16
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// bytes of hex might be displayed.
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EXPECT_EQ("611e621f |a.b.|",
|
||
|
|
format_bytes_with_ascii_str(Unprintable));
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
// Test hex bytes with ASCII with offsets with the default 4 byte groups.
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
EXPECT_EQ("0000: 61626364 65666768 "
|
||
|
|
"696a6b6c 6d6e6f70 |abcdefghijklmnop|",
|
||
|
|
format_bytes_with_ascii_str(B.take_front(16), 0));
|
||
|
|
EXPECT_EQ("0000: 61626364 65666768 |abcdefgh|\n"
|
||
|
|
"0008: 696a6b6c 6d6e6f70 |ijklmnop|",
|
||
|
|
format_bytes_with_ascii_str(B.take_front(16), 0, 8));
|
||
|
|
EXPECT_EQ("0000: 61626364 656667 |abcdefg|\n"
|
||
|
|
"0007: 68696a6b 6c |hijkl|",
|
||
|
|
format_bytes_with_ascii_str(B.take_front(12), 0, 7));
|
||
|
|
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
// Test hex bytes with ASCII with offsets with the default 2 byte groups.
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
EXPECT_EQ("0000: 6162 6364 6566 6768 "
|
||
|
|
"696a 6b6c 6d6e 6f70 |abcdefghijklmnop|",
|
||
|
|
format_bytes_with_ascii_str(B.take_front(16), 0, 16, 2));
|
||
|
|
EXPECT_EQ("0000: 6162 6364 6566 6768 |abcdefgh|\n"
|
||
|
|
"0008: 696a 6b6c 6d6e 6f70 |ijklmnop|",
|
||
|
|
format_bytes_with_ascii_str(B.take_front(16), 0, 8, 2));
|
||
|
|
EXPECT_EQ("0000: 6162 6364 6566 67 |abcdefg|\n"
|
||
|
|
"0007: 6869 6a6b 6c |hijkl|",
|
||
|
|
format_bytes_with_ascii_str(B.take_front(12), 0, 7, 2));
|
||
|
|
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
// Test hex bytes with ASCII with offsets with the default 1 byte groups.
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
EXPECT_EQ("0000: 61 62 63 64 65 66 67 68 "
|
||
|
|
"69 6a 6b 6c 6d 6e 6f 70 |abcdefghijklmnop|",
|
||
|
|
format_bytes_with_ascii_str(B.take_front(16), 0, 16, 1));
|
||
|
|
EXPECT_EQ("0000: 61 62 63 64 65 66 67 68 |abcdefgh|\n"
|
||
|
|
"0008: 69 6a 6b 6c 6d 6e 6f 70 |ijklmnop|",
|
||
|
|
format_bytes_with_ascii_str(B.take_front(16), 0, 8, 1));
|
||
|
|
EXPECT_EQ("0000: 61 62 63 64 65 66 67 |abcdefg|\n"
|
||
|
|
"0007: 68 69 6a 6b 6c |hijkl|",
|
||
|
|
format_bytes_with_ascii_str(B.take_front(12), 0, 7, 1));
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef LLVM_ON_UNIX
|
||
|
|
TEST(raw_ostreamTest, Colors) {
|
||
|
|
{
|
||
|
|
std::string S;
|
||
|
|
raw_string_ostream Sos(S);
|
||
|
|
Sos.enable_colors(false);
|
||
|
|
Sos.changeColor(raw_ostream::YELLOW);
|
||
|
|
EXPECT_EQ("", Sos.str());
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
std::string S;
|
||
|
|
raw_string_ostream Sos(S);
|
||
|
|
Sos.enable_colors(true);
|
||
|
|
Sos.changeColor(raw_ostream::YELLOW);
|
||
|
|
EXPECT_EQ("\x1B[0;33m", Sos.str());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
TEST(raw_fd_ostreamTest, multiple_raw_fd_ostream_to_stdout) {
|
||
|
|
std::error_code EC;
|
||
|
|
|
||
|
|
{ raw_fd_ostream("-", EC, sys::fs::OpenFlags::OF_None); }
|
||
|
|
{ raw_fd_ostream("-", EC, sys::fs::OpenFlags::OF_None); }
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST(raw_ostreamTest, flush_tied_to_stream_on_write) {
|
||
|
|
std::string TiedToBuffer;
|
||
|
|
raw_string_ostream TiedTo(TiedToBuffer);
|
||
|
|
TiedTo.SetBuffered();
|
||
|
|
TiedTo << "a";
|
||
|
|
|
||
|
|
std::string Buffer;
|
||
|
|
raw_string_ostream TiedStream(Buffer);
|
||
|
|
TiedStream.tie(&TiedTo);
|
||
|
|
// Sanity check that the stream hasn't already been flushed.
|
||
|
|
EXPECT_EQ("", TiedToBuffer);
|
||
|
|
|
||
|
|
// Empty string doesn't cause a flush of TiedTo.
|
||
|
|
TiedStream << "";
|
||
|
|
EXPECT_EQ("", TiedToBuffer);
|
||
|
|
|
||
|
|
// Non-empty strings trigger flush of TiedTo.
|
||
|
|
TiedStream << "abc";
|
||
|
|
EXPECT_EQ("a", TiedToBuffer);
|
||
|
|
|
||
|
|
// Single char write flushes TiedTo.
|
||
|
|
TiedTo << "c";
|
||
|
|
TiedStream << 'd';
|
||
|
|
EXPECT_EQ("ac", TiedToBuffer);
|
||
|
|
|
||
|
|
// Write to buffered stream without flush does not flush TiedTo.
|
||
|
|
TiedStream.SetBuffered();
|
||
|
|
TiedStream.SetBufferSize(2);
|
||
|
|
TiedTo << "e";
|
||
|
|
TiedStream << "f";
|
||
|
|
EXPECT_EQ("ac", TiedToBuffer);
|
||
|
|
|
||
|
|
// Explicit flush of buffered stream flushes TiedTo.
|
||
|
|
TiedStream.flush();
|
||
|
|
EXPECT_EQ("ace", TiedToBuffer);
|
||
|
|
|
||
|
|
// Explicit flush of buffered stream with empty buffer does not flush TiedTo.
|
||
|
|
TiedTo << "g";
|
||
|
|
TiedStream.flush();
|
||
|
|
EXPECT_EQ("ace", TiedToBuffer);
|
||
|
|
|
||
|
|
// Write of data to empty buffer that is greater than buffer size flushes
|
||
|
|
// TiedTo.
|
||
|
|
TiedStream << "hijklm";
|
||
|
|
EXPECT_EQ("aceg", TiedToBuffer);
|
||
|
|
|
||
|
|
// Write of data that overflows buffer size also flushes TiedTo.
|
||
|
|
TiedStream.flush();
|
||
|
|
TiedStream << "n";
|
||
|
|
TiedTo << "o";
|
||
|
|
TiedStream << "pq";
|
||
|
|
EXPECT_EQ("acego", TiedToBuffer);
|
||
|
|
|
||
|
|
// Streams can be tied to each other safely.
|
||
|
|
TiedStream.flush();
|
||
|
|
Buffer = "";
|
||
|
|
TiedTo.tie(&TiedStream);
|
||
|
|
TiedTo.SetBufferSize(2);
|
||
|
|
TiedStream << "r";
|
||
|
|
TiedTo << "s";
|
||
|
|
EXPECT_EQ("", Buffer);
|
||
|
|
EXPECT_EQ("acego", TiedToBuffer);
|
||
|
|
TiedTo << "tuv";
|
||
|
|
EXPECT_EQ("r", Buffer);
|
||
|
|
TiedStream << "wxy";
|
||
|
|
EXPECT_EQ("acegostuv", TiedToBuffer);
|
||
|
|
// The x remains in the buffer, since it was written after the flush of
|
||
|
|
// TiedTo.
|
||
|
|
EXPECT_EQ("rwx", Buffer);
|
||
|
|
TiedTo.tie(nullptr);
|
||
|
|
|
||
|
|
// Calling tie with nullptr unties stream.
|
||
|
|
TiedStream.SetUnbuffered();
|
||
|
|
TiedStream.tie(nullptr);
|
||
|
|
TiedTo << "y";
|
||
|
|
TiedStream << "0";
|
||
|
|
EXPECT_EQ("acegostuv", TiedToBuffer);
|
||
|
|
}
|
||
|
|
}
|