Function FL_TEST_FILE

tests/fl/stl/fstream.cpp:7–180

#include "test.h"

FL_TEST_FILE(FL_FILEPATH) {

FL_TEST_CASE("fstream errno - file not found") {
    fl::ifstream ifs("/nonexistent/file.txt");
    FL_CHECK(!ifs.is_open());
    FL_CHECK(ifs.fail());
    FL_CHECK(ifs.error() == ENOENT);
    FL_CHECK(fl::string(ifs.error_message()).find("No such file") != fl::string::npos);
}

FL_TEST_CASE("fstream errno - write after close") {
    fl::string test_dir = "test_fstream_errors";
    fl::StubFileSystem::createDirectory(test_dir);
    fl::string file_path = test_dir + "/test.txt";

    fl::ofstream ofs(file_path.c_str());
    FL_REQUIRE(ofs.is_open());

    ofs.close();
    ofs.write("data", 4);  // Write after close

    FL_CHECK(ofs.fail());
    FL_CHECK(ofs.error() != 0);

    fl::StubFileSystem::removeFile(file_path);
    fl::StubFileSystem::removeDirectory(test_dir);
}

FL_TEST_CASE("fstream errno - clear_error recovery") {
    fl::string test_dir = "test_fstream_clear";
    fl::StubFileSystem::createDirectory(test_dir);
    fl::string file_path = test_dir + "/test.txt";
    fl::StubFileSystem::createTextFile(file_path, "data");

    fl::ifstream ifs(file_path.c_str());
    FL_REQUIRE(ifs.is_open());

    // Read to EOF
    char buf[10];
    ifs.read(buf, 10);
    FL_CHECK(ifs.eof());

    // Clear and retry
    ifs.clear_error();
    FL_CHECK(ifs.good());

    ifs.seekg(0);
    FL_CHECK(ifs.good());

    ifs.close();
    fl::StubFileSystem::removeFile(file_path);
    fl::StubFileSystem::removeDirectory(test_dir);
}

FL_TEST_CASE("fstream errno - error persistence") {
    fl::ifstream ifs("/nonexistent.txt");
    FL_CHECK(!ifs.is_open());