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#include <cstdlib>
#include <cstring>
#include <map>
#include <sstream>
#include <stdexcept>
#include <boost/test/unit_test.hpp>
#include "Buffer.hpp"
using namespace schrodinger;
BOOST_AUTO_TEST_SUITE(BufferSuite)
BOOST_AUTO_TEST_CASE(NewlineColumn0)
{
std::string s("123456");
std::stringstream ss(s);
Buffer b(ss, s.size());
BOOST_REQUIRE(b.load());
BOOST_REQUIRE_EQUAL(b.getColumn(b.begin + 0), 1u);
BOOST_REQUIRE_EQUAL(b.getColumn(b.begin + 2), 3u);
BOOST_REQUIRE_EQUAL(b.getColumn(b.begin + 5), 6u);
}
BOOST_AUTO_TEST_CASE(NewlineColumn1)
{
std::string s("\n123456");
std::stringstream ss(s);
Buffer b(ss, s.size());
BOOST_REQUIRE(b.load());
BOOST_REQUIRE_EQUAL(b.getColumn(b.begin + 0), 1u);
BOOST_REQUIRE_EQUAL(b.getColumn(b.begin + 1), 1u);
BOOST_REQUIRE_EQUAL(b.getColumn(b.begin + 3), 3u);
BOOST_REQUIRE_EQUAL(b.getColumn(b.begin + 6), 6u);
}
BOOST_AUTO_TEST_CASE(NewlineColumnEmptyBuffer)
{
std::string s;
std::stringstream ss(s);
Buffer b(ss, s.size());
BOOST_REQUIRE(!b.load());
BOOST_REQUIRE_EQUAL(b.getColumn(b.begin), 1u);
}
BOOST_AUTO_TEST_CASE(Loading)
{
std::stringstream ss("123456");
Buffer b(ss, 6);
int i = 0;
while (b.current < b.end || b.load()) {
++b.current;
++i;
}
BOOST_REQUIRE_EQUAL(i, 6);
}
BOOST_AUTO_TEST_CASE(GetBuffer)
{
std::stringstream ss("123456123456");
int buffer_len = 6;
Buffer b(ss, buffer_len);
for (int i = 0; i < buffer_len; i++) {
if (!b.load()) {
BOOST_FAIL("Unexpected end of \"file\".");
}
++b.current;
}
if (!b.load()) {
BOOST_FAIL("Unexpected end of \"file\".");
}
BOOST_REQUIRE_EQUAL(*b.current, '1');
}
BOOST_AUTO_TEST_CASE(Newline0)
{
// Test newline as the first character of a new buffer load.
std::stringstream ss("123456\n");
int buffer_len = 6;
Buffer b(ss, buffer_len);
for (int i = 0; i < buffer_len; i++) {
if (!b.load()) {
BOOST_FAIL("Unexpected end of \"file\".");
}
++b.current;
}
BOOST_REQUIRE_EQUAL(b.getColumn(), 7u);
if (!b.load()) {
BOOST_FAIL("Unexpected end of \"file\".");
}
BOOST_REQUIRE_EQUAL(*b.current, '\n');
++b.current;
BOOST_REQUIRE_EQUAL(b.getColumn(), 1u);
}
BOOST_AUTO_TEST_CASE(GetPosition0)
{
// Test expected column numbers for repeated buffer loads.
std::stringstream ss("0123456\n12345x7\n\n123y5\n");
// 0......1.......2........3.
// 12345678 12345678 1 123456
const unsigned int buffer_len = 7;
const unsigned int stream_len = 23;
Buffer b(ss, buffer_len);
const int required_reads = 4;
unsigned int column[stream_len] = {1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4,
5, 6, 7, 8, 1, 1, 2, 3, 4, 5, 6};
int stream_ix = 0;
int load_count = 0;
while (b.current < b.end || (b.load() && ++load_count)) {
BOOST_REQUIRE_EQUAL(b.getColumn(), column[stream_ix]);
++b.current;
++stream_ix;
}
BOOST_REQUIRE_EQUAL(load_count, required_reads);
}
BOOST_AUTO_TEST_CASE(GetPosition1)
{
// Test expected column numbers for repeated buffer loads with
// the smallest possible buffer size.
std::stringstream ss("0123456");
int buffer_len = 1;
Buffer b(ss, buffer_len);
const int required_reads = 7;
unsigned int column[required_reads] = {1, 2, 3, 4, 5, 6, 7};
int load_count = 0;
while (b.current < b.end || (b.load() && ++load_count)) {
BOOST_REQUIRE_EQUAL(b.getColumn(), column[load_count - 1]);
++b.current;
}
BOOST_REQUIRE_EQUAL(load_count, required_reads);
}
BOOST_AUTO_TEST_CASE(NewlineCase0)
{
// Test the corner case of a single newline in the entire stream.
std::stringstream ss("\n");
Buffer b(ss, 128);
BOOST_REQUIRE_EQUAL(b.getColumn(), 1u);
while (b.current < b.end || b.load()) {
++b.current;
}
BOOST_REQUIRE_EQUAL(b.getColumn(), 1u);
}
BOOST_AUTO_TEST_CASE(NewlineCase1)
{
// Test column position around newlines. This case has a newline as the
// first char in a new buffer.
std::stringstream ss("123456\n890\n1");
Buffer b(ss, 10);
const int stream_len = 12;
unsigned int column[stream_len] = {1, 2, 3, 4, 5, 6, 7, 1, 2, 3, 4, 1};
int ix = 0;
while (b.current < b.end || b.load()) {
BOOST_REQUIRE_EQUAL(b.getColumn(), column[ix]);
++b.current;
++ix;
}
}
BOOST_AUTO_TEST_SUITE_END()
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