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.
58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
// Test that Buffer::Save writes actual contents to disk
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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 std::string
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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
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main()
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{
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// Create a temporary path under current working directory
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const std::string path = "./.kte_test_buffer_save.tmp";
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// Ensure any previous file is removed
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std::remove(path.c_str());
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Buffer buf;
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// Simulate editing a new buffer: insert content
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const std::string payload = "Hello, world!\nThis is a save test.\n";
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buf.insert_text(0, 0, payload);
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// Make it file-backed with a filename so Save() path is exercised
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// We use SaveAs first to set filename/is_file_backed and then modify content
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std::string err;
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bool ok = buf.SaveAs(path, err);
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assert(ok && err.empty());
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// Modify buffer after SaveAs to ensure Save() writes new content
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const std::string more = "Appended line.\n";
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buf.insert_text(2, 0, more);
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// Mark as dirty so commands would attempt to save; Save() itself doesn’t require dirty
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buf.SetDirty(true);
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// Now call Save() which should use streaming write and persist all bytes
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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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// Verify file contents exactly match expected string
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const std::string expected = payload + more;
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const std::string got = read_file(path);
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assert(got == expected);
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// Cleanup
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std::remove(path.c_str());
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return 0;
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}
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