Kyle Isom
27dcb41857
- Added `test_reflow_undo.cc` to validate undo/redo workflows for reflow operations. - Introduced `UndoType::InsertRow` in `UndoSystem` for tracking row insertion changes in undo history. - Updated `UndoNode.h` and `UndoSystem.cc` to support row insertion as a standalone undo step. - Enhanced reflow paragraph functionality to properly record undo/redo actions for both row deletion and insertion. - Enabled legacy/extended undo tests in `test_undo.cc` for comprehensive validation. - Updated `CMakeLists.txt` to include new test file in the build target.
69 lines
1.6 KiB
C++
69 lines
1.6 KiB
C++
#include "Test.h"
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#include "Buffer.h"
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#include "Command.h"
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#include "Editor.h"
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#include "UndoSystem.h"
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#include <string>
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static std::string
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to_string_rows(const Buffer &buf)
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{
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std::string out;
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for (const auto &r: buf.Rows()) {
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out += static_cast<std::string>(r);
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out.push_back('\n');
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}
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return out;
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}
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TEST (ReflowUndo)
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{
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InstallDefaultCommands();
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Editor ed;
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ed.SetDimensions(24, 80);
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Buffer b;
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const std::string initial =
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"This is a very long line that should be reflowed into multiple lines to see if undo works correctly.\n";
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b.insert_text(0, 0, initial);
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b.SetCursor(0, 0);
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// Commit initial insertion so it's its own undo step
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if (auto *u = b.Undo())
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u->commit();
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ed.AddBuffer(std::move(b));
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Buffer *buf = ed.CurrentBuffer();
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ASSERT_TRUE(buf != nullptr);
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const std::string original_dump = to_string_rows(*buf);
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// Reflow with small width
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const int width = 20;
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ASSERT_TRUE(Execute(ed, "reflow-paragraph", "", width));
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const std::string reflowed_dump = to_string_rows(*buf);
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ASSERT_TRUE(reflowed_dump != original_dump);
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ASSERT_TRUE(buf->Rows().size() > 1);
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// Undo reflow
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ASSERT_TRUE(Execute(ed, "undo", "", 1));
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const std::string after_undo_dump = to_string_rows(*buf);
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if (after_undo_dump != original_dump) {
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fprintf(stderr, "Undo failed.\nExpected:\n%s\nGot:\n%s\n", original_dump.c_str(),
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after_undo_dump.c_str());
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}
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EXPECT_TRUE(after_undo_dump == original_dump);
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// Redo reflow
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ASSERT_TRUE(Execute(ed, "redo", "", 1));
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const std::string after_redo_dump = to_string_rows(*buf);
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EXPECT_TRUE(after_redo_dump == reflowed_dump);
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} |