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// Unit Tests for Scintilla internal data structures
#include <cstring>
#include <stdexcept>
#include <algorithm>
#include "Platform.h"
#include "SplitVector.h"
#include "Partitioning.h"
#include "RunStyles.h"
#include "CellBuffer.h"
#include "catch.hpp"
// Test CellBuffer.
TEST_CASE("CellBuffer") {
const char sText[] = "Scintilla";
const size_t sLength = strlen(sText);
CellBuffer cb;
SECTION("InsertOneLine") {
bool startSequence = false;
const char *cpChange = cb.InsertString(0, sText, sLength, startSequence);
REQUIRE(startSequence);
REQUIRE(sLength == cb.Length());
REQUIRE(memcmp(cpChange, sText, sLength) == 0);
REQUIRE(1 == cb.Lines());
REQUIRE(0 == cb.LineStart(0));
REQUIRE(0 == cb.LineFromPosition(0));
REQUIRE(sLength == cb.LineStart(1));
REQUIRE(0 == cb.LineFromPosition(sLength));
REQUIRE(cb.CanUndo());
REQUIRE(!cb.CanRedo());
}
SECTION("InsertTwoLines") {
const char sText2[] = "Two\nLines";
const size_t sLength2 = strlen(sText2);
bool startSequence = false;
const char *cpChange = cb.InsertString(0, sText2, sLength2, startSequence);
REQUIRE(startSequence);
REQUIRE(sLength2 == cb.Length());
REQUIRE(memcmp(cpChange, sText2, sLength2) == 0);
REQUIRE(2 == cb.Lines());
REQUIRE(0 == cb.LineStart(0));
REQUIRE(0 == cb.LineFromPosition(0));
REQUIRE(4 == cb.LineStart(1));
REQUIRE(1 == cb.LineFromPosition(5));
REQUIRE(sLength2 == cb.LineStart(2));
REQUIRE(1 == cb.LineFromPosition(sLength2));
REQUIRE(cb.CanUndo());
REQUIRE(!cb.CanRedo());
}
SECTION("UndoOff") {
REQUIRE(cb.IsCollectingUndo());
cb.SetUndoCollection(false);
REQUIRE(!cb.IsCollectingUndo());
bool startSequence = false;
const char *cpChange = cb.InsertString(0, sText, sLength, startSequence);
REQUIRE(!startSequence);
REQUIRE(sLength == cb.Length());
REQUIRE(memcmp(cpChange, sText, sLength) == 0);
REQUIRE(!cb.CanUndo());
REQUIRE(!cb.CanRedo());
}
SECTION("UndoRedo") {
const char sTextDeleted[] = "ci";
const char sTextAfterDeletion[] = "Sntilla";
bool startSequence = false;
const char *cpChange = cb.InsertString(0, sText, sLength, startSequence);
REQUIRE(startSequence);
REQUIRE(sLength == cb.Length());
REQUIRE(memcmp(cpChange, sText, sLength) == 0);
REQUIRE(memcmp(cb.BufferPointer(), sText, sLength) == 0);
REQUIRE(cb.CanUndo());
REQUIRE(!cb.CanRedo());
const char *cpDeletion = cb.DeleteChars(1, 2, startSequence);
REQUIRE(startSequence);
REQUIRE(memcmp(cpDeletion, sTextDeleted, strlen(sTextDeleted)) == 0);
REQUIRE(memcmp(cb.BufferPointer(), sTextAfterDeletion, strlen(sTextAfterDeletion)) == 0);
REQUIRE(cb.CanUndo());
REQUIRE(!cb.CanRedo());
int steps = cb.StartUndo();
REQUIRE(steps == 1);
cb.PerformUndoStep();
REQUIRE(memcmp(cb.BufferPointer(), sText, sLength) == 0);
REQUIRE(cb.CanUndo());
REQUIRE(cb.CanRedo());
steps = cb.StartUndo();
REQUIRE(steps == 1);
cb.PerformUndoStep();
REQUIRE(cb.Length() == 0);
REQUIRE(!cb.CanUndo());
REQUIRE(cb.CanRedo());
steps = cb.StartRedo();
REQUIRE(steps == 1);
cb.PerformRedoStep();
REQUIRE(memcmp(cb.BufferPointer(), sText, sLength) == 0);
REQUIRE(cb.CanUndo());
REQUIRE(cb.CanRedo());
steps = cb.StartRedo();
REQUIRE(steps == 1);
cb.PerformRedoStep();
REQUIRE(memcmp(cb.BufferPointer(), sTextAfterDeletion, strlen(sTextAfterDeletion)) == 0);
REQUIRE(cb.CanUndo());
REQUIRE(!cb.CanRedo());
cb.DeleteUndoHistory();
REQUIRE(!cb.CanUndo());
REQUIRE(!cb.CanRedo());
}
SECTION("LineEndTypes") {
REQUIRE(cb.GetLineEndTypes() == 0);
cb.SetLineEndTypes(1);
REQUIRE(cb.GetLineEndTypes() == 1);
cb.SetLineEndTypes(0);
REQUIRE(cb.GetLineEndTypes() == 0);
}
SECTION("ReadOnly") {
REQUIRE(!cb.IsReadOnly());
cb.SetReadOnly(true);
REQUIRE(cb.IsReadOnly());
bool startSequence = false;
cb.InsertString(0, sText, sLength, startSequence);
REQUIRE(cb.Length() == 0);
}
}
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