Kyle Isom
f6f0c11be4
- Introduced comprehensive tests: - `test_buffer_open_nonexistent_save.cc`: Save after opening a non-existent file. - `test_buffer_save.cc`: Save buffer contents to disk. - `test_buffer_save_existing.cc`: Save after opening existing files. - Implemented `PieceTable::WriteToStream()` to directly stream content without full materialization. - Updated `Buffer::Save` and `Buffer::SaveAs` to use efficient streaming via `PieceTable`. - Enhanced editing commands (`Insert`, `Delete`, `Replace`, etc.) to use PieceTable APIs, ensuring proper undo and save functionality.
49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
// Test saving after opening an existing file
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#include <cassert>
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#include <cstdio>
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#include <fstream>
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#include <string>
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#include "Buffer.h"
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static void write_file(const std::string &path, const std::string &data)
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{
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std::ofstream out(path, std::ios::binary | std::ios::trunc);
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out.write(data.data(), static_cast<std::streamsize>(data.size()));
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}
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static std::string read_file(const std::string &path)
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{
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std::ifstream in(path, std::ios::binary);
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return std::string((std::istreambuf_iterator<char>(in)), std::istreambuf_iterator<char>());
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}
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int main()
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{
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const std::string path = "./.kte_test_buffer_save_existing.tmp";
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std::remove(path.c_str());
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const std::string initial = "abc\n123\n";
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write_file(path, initial);
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Buffer buf;
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std::string err;
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bool ok = buf.OpenFromFile(path, err);
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assert(ok && err.empty());
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// Insert at end
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buf.insert_text(2, 0, std::string("tail\n"));
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buf.SetDirty(true);
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// Save should overwrite the same file
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err.clear();
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ok = buf.Save(err);
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assert(ok && err.empty());
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const std::string expected = initial + "tail\n";
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const std::string got = read_file(path);
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assert(got == expected);
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std::remove(path.c_str());
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return 0;
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}
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