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#include "file.h"
#include <library/cpp/testing/unittest/registar.h>
#include <util/system/tempfile.h>
static const char* TmpFileName = "./fileio";
static const char* TmpFileContents = "To do good to Mankind is the chivalrous plan";
static const char* TmpFileSubstring = strstr(TmpFileContents, "chivalrous");
Y_UNIT_TEST_SUITE(TFileTest) {
Y_UNIT_TEST(InputTest) {
TTempFile tmp(TmpFileName);
{
TUnbufferedFileOutput output(TmpFileName);
output.Write(TmpFileContents, strlen(TmpFileContents));
}
{
TUnbufferedFileInput input(TmpFileName);
TString s = input.ReadAll();
UNIT_ASSERT_VALUES_EQUAL(s, TmpFileContents);
}
{
TUnbufferedFileInput input(TmpFileName);
input.Skip(TmpFileSubstring - TmpFileContents);
TString s = input.ReadAll();
UNIT_ASSERT_VALUES_EQUAL(s, "chivalrous plan");
}
{
TUnbufferedFileOutput output(TFile::ForAppend(TmpFileName));
output.Write(TmpFileContents, strlen(TmpFileContents));
}
{
TUnbufferedFileInput input(TmpFileName);
TString s = input.ReadAll();
UNIT_ASSERT_VALUES_EQUAL(s, TString::Join(TmpFileContents, TmpFileContents));
}
}
Y_UNIT_TEST(EmptyMapTest) {
TTempFile tmp(TmpFileName);
{
TUnbufferedFileOutput output(TmpFileName);
/* Write nothing. */
}
{
TMappedFileInput input(TmpFileName);
TString s = input.ReadAll();
UNIT_ASSERT(s.empty());
}
}
#ifdef _unix_
Y_UNIT_TEST(PipeReadLineTest) {
int fds[2];
UNIT_ASSERT(pipe(fds) == 0);
TFile readEnd(fds[0]);
TFileInput fileInput(readEnd);
UNIT_ASSERT_VALUES_EQUAL(write(fds[1], "hello\n", 6), 6);
TString line;
UNIT_ASSERT(fileInput.ReadLine(line));
UNIT_ASSERT_STRINGS_EQUAL(line, "hello");
close(fds[1]);
}
#endif
}
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