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/*
* SPDX-FileCopyrightText: 2019 knowledge4igor
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <pistache/stream.h>
#include <gtest/gtest.h>
#include <climits>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <fstream>
#include <iostream>
#include <string>
using namespace Pistache;
TEST(stream, test_buffer)
{
const char str[] = "test_string";
const size_t len = strlen(str);
RawBuffer buffer1(str, len);
ASSERT_THROW(buffer1.copy(2 * len), std::range_error);
RawBuffer buffer2 = buffer1.copy();
ASSERT_EQ(buffer2.size(), len);
ASSERT_EQ(buffer2.data(), "test_string");
RawBuffer buffer3;
ASSERT_EQ(buffer3.size(), 0u);
RawBuffer buffer4 = buffer3.copy();
ASSERT_EQ(buffer4.size(), 0u);
RawBuffer buffer5 = buffer1.copy(5u);
ASSERT_EQ(buffer5.size(), 6u);
ASSERT_EQ(buffer5.data(), "string");
}
TEST(stream, test_file_buffer)
{
char fileName[PATH_MAX] = "/tmp/pistacheioXXXXXX";
if (!mkstemp(fileName))
{
std::cerr << "No suitable filename can be generated!" << std::endl;
}
std::cout << "Temporary file name: " << fileName << std::endl;
const std::string dataToWrite("Hello World!");
std::ofstream tmpFile;
tmpFile.open(fileName);
tmpFile << dataToWrite;
tmpFile.close();
FileBuffer fileBuffer(fileName);
ASSERT_NE(fileBuffer.fd(), -1);
ASSERT_EQ(fileBuffer.size(), dataToWrite.size());
std::remove(fileName);
}
TEST(stream, test_dyn_buffer)
{
DynamicStreamBuf buf(128, Const::MaxBuffer);
ASSERT_EQ(buf.maxSize(), Const::MaxBuffer);
{
std::ostream os(&buf);
for (unsigned i = 0; i < 128; ++i)
{
os << "A";
}
}
auto rawbuf = buf.buffer();
ASSERT_EQ(rawbuf.size(), 128u);
ASSERT_EQ(rawbuf.data().size(), 128u);
ASSERT_EQ(strlen(rawbuf.data().c_str()), 128u);
}
TEST(stream, test_array_buffer)
{
ArrayStreamBuf<char> buffer(4);
const char* part1 = "abcd";
ASSERT_TRUE(buffer.feed(part1, strlen(part1)));
const char* part2 = "efgh";
ASSERT_FALSE(buffer.feed(part2, strlen(part2)));
}
TEST(stream, test_cursor_advance_for_array)
{
ArrayStreamBuf<char> buffer(Const::MaxBuffer);
StreamCursor cursor { &buffer };
const char* part1 = "abcd";
buffer.feed(part1, strlen(part1));
ASSERT_EQ(cursor.current(), 'a');
ASSERT_TRUE(cursor.advance(1));
ASSERT_EQ(cursor.current(), 'b');
ASSERT_TRUE(cursor.advance(0));
ASSERT_EQ(cursor.current(), 'b');
ASSERT_TRUE(cursor.advance(1));
ASSERT_EQ(cursor.current(), 'c');
const char* part2 = "efgh";
buffer.feed(part2, strlen(part2));
ASSERT_TRUE(cursor.advance(2));
ASSERT_EQ(cursor.current(), 'e');
ASSERT_FALSE(cursor.advance(5));
}
TEST(stream, test_cursor_remaining_for_array)
{
ArrayStreamBuf<char> buffer(Const::MaxBuffer);
StreamCursor cursor { &buffer };
const char* data = "abcd";
ASSERT_TRUE(buffer.feed(data, strlen(data)));
ASSERT_EQ(cursor.remaining(), 4u);
cursor.advance(2);
ASSERT_EQ(cursor.remaining(), 2u);
cursor.advance(1);
ASSERT_EQ(cursor.remaining(), 1u);
cursor.advance(1);
ASSERT_EQ(cursor.remaining(), 0u);
}
TEST(stream, test_cursor_eol_eof_for_array)
{
ArrayStreamBuf<char> buffer(Const::MaxBuffer);
StreamCursor cursor { &buffer };
const char* data = "abcd\r\nefgh";
ASSERT_TRUE(buffer.feed(data, strlen(data)));
cursor.advance(4);
ASSERT_TRUE(cursor.eol());
ASSERT_FALSE(cursor.eof());
cursor.advance(2);
ASSERT_FALSE(cursor.eol());
ASSERT_FALSE(cursor.eof());
cursor.advance(4);
ASSERT_FALSE(cursor.eol());
ASSERT_TRUE(cursor.eof());
}
TEST(stream, test_cursor_offset_for_array)
{
ArrayStreamBuf<char> buffer(Const::MaxBuffer);
StreamCursor cursor { &buffer };
const char* data = "abcdefgh";
ASSERT_TRUE(buffer.feed(data, strlen(data)));
const size_t shift = 4u;
cursor.advance(shift);
std::string result { cursor.offset(), strlen(data) - shift };
ASSERT_EQ(result, "efgh");
}
TEST(stream, test_cursor_diff_for_array)
{
ArrayStreamBuf<char> buffer1(Const::MaxBuffer);
StreamCursor first_cursor { &buffer1 };
ArrayStreamBuf<char> buffer2(Const::MaxBuffer);
StreamCursor second_cursor { &buffer2 };
const char* data = "abcdefgh";
ASSERT_TRUE(buffer1.feed(data, strlen(data)));
ASSERT_TRUE(buffer2.feed(data, strlen(data)));
ASSERT_EQ(first_cursor.diff(second_cursor), 0u);
ASSERT_EQ(second_cursor.diff(first_cursor), 0u);
first_cursor.advance(4);
ASSERT_EQ(second_cursor.diff(first_cursor), 4u);
second_cursor.advance(4);
ASSERT_EQ(second_cursor.diff(first_cursor), 0u);
}
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