296 lines
8.5 KiB
C++
296 lines
8.5 KiB
C++
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/** @file testSelection.cxx
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** Unit Tests for Scintilla internal data structures
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**/
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#include <cstdint>
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#include <stdexcept>
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#include <string_view>
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#include <vector>
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#include "Debugging.h"
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#include "Position.h"
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#include "Selection.h"
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#include "catch.hpp"
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using namespace Scintilla;
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using namespace Scintilla::Internal;
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// Test Selection.
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namespace {
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constexpr SelectionPosition invalid;
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constexpr SelectionPosition zero(0);
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constexpr SelectionRange rangeInvalid;
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constexpr SelectionRange rangeZero(0);
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}
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TEST_CASE("SelectionPosition") {
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SECTION("SelectionPosition") {
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SelectionPosition sel;
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REQUIRE(sel.Position() == Sci::invalidPosition);
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REQUIRE(sel.VirtualSpace() == 0);
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REQUIRE(!sel.IsValid());
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REQUIRE(sel.VirtualSpace() == 0);
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REQUIRE(sel == invalid);
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REQUIRE(sel != zero);
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sel.Reset();
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REQUIRE(sel != invalid);
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REQUIRE(sel == zero);
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}
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SECTION("Comparison") {
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constexpr SelectionPosition sel(2,3);
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REQUIRE(sel > invalid);
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REQUIRE(sel > zero);
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REQUIRE(sel >= zero);
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REQUIRE(zero < sel);
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REQUIRE(zero <= sel);
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SelectionPosition virtuous(0, 4);
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REQUIRE(virtuous > zero);
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REQUIRE(virtuous >= zero);
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REQUIRE(zero < virtuous);
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REQUIRE(zero <= virtuous);
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REQUIRE(virtuous.Position() == 0);
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REQUIRE(virtuous.VirtualSpace() == 4);
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virtuous.SetPosition(1); // Also resets virtualSpace
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REQUIRE(virtuous.Position() == 1);
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REQUIRE(virtuous.VirtualSpace() == 0);
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virtuous.SetVirtualSpace(3); // Does not reset position
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REQUIRE(virtuous.Position() == 1);
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REQUIRE(virtuous.VirtualSpace() == 3);
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}
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SECTION("Add") {
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SelectionPosition sel(2,3);
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sel.Add(1);
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REQUIRE(sel.Position() == 3);
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REQUIRE(sel.VirtualSpace() == 3);
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sel.AddVirtualSpace(2);
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REQUIRE(sel.Position() == 3);
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REQUIRE(sel.VirtualSpace() == 5);
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}
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SECTION("MoveForInsertDelete") {
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// There are multiple details implemented in MoveForInsertDelete that are supposed to
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// move selections in a way that appears to be natural to a user.
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SelectionPosition sel(2,3);
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sel.MoveForInsertDelete(true, 0,1, false);
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REQUIRE(sel == SelectionPosition(3,3));
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// Converts a virtual space to real space
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sel.MoveForInsertDelete(true, 3,1, false);
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REQUIRE(sel == SelectionPosition(4,2));
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// Deletion at position clears virtual space
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sel.MoveForInsertDelete(false, 4,1, false);
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REQUIRE(sel == SelectionPosition(4,0));
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sel.MoveForInsertDelete(false, 3,1, false);
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REQUIRE(sel == SelectionPosition(3,0));
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// Insert at position with and without move for equal
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sel.MoveForInsertDelete(true, 3, 1, false);
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REQUIRE(sel == SelectionPosition(3, 0));
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sel.MoveForInsertDelete(true, 3, 1, true);
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REQUIRE(sel == SelectionPosition(4, 0));
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// Deletion over the position moves to start of deletion
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sel.MoveForInsertDelete(false, 2, 5, false);
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REQUIRE(sel == SelectionPosition(2, 0));
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}
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SECTION("Serialization") {
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// Conversion to/from string form
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const std::string invalidString(invalid.ToString());
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REQUIRE(invalidString == "-1");
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const SelectionPosition invalidReturned(invalidString);
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REQUIRE(invalidReturned == invalid);
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const std::string zeroString(zero.ToString());
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REQUIRE(zeroString == "0");
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const SelectionPosition zeroReturned(zeroString);
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REQUIRE(zeroReturned == zero);
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const SelectionPosition virtue(2, 3);
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const std::string virtueString(virtue.ToString());
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REQUIRE(virtueString == "2v3");
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const SelectionPosition virtueReturned(virtueString);
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REQUIRE(virtueReturned == virtue);
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}
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}
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TEST_CASE("SelectionSegment") {
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SECTION("SelectionSegment") {
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const SelectionSegment ss;
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REQUIRE(ss.start == invalid);
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REQUIRE(ss.end == invalid);
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}
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}
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TEST_CASE("SelectionRange") {
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SECTION("SelectionRange") {
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const SelectionRange sr;
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REQUIRE(sr.anchor == invalid);
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REQUIRE(sr.caret == invalid);
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}
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SECTION("Serialization") {
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// Conversion to/from string form
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// Range from 1 to 2 with 3 virtual spaces
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const SelectionRange range123(SelectionPosition(2, 3), SelectionPosition(1));
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const std::string range123String(range123.ToString());
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// Opposite order to constructor: from anchor to caret
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REQUIRE(range123String == "1-2v3");
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const SelectionRange range123Returned(range123String);
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REQUIRE(range123Returned == range123);
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}
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SECTION("Intersect") {
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constexpr SelectionSegment segmentEmpty;
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// Range from 1 to 2 with 3 virtual spaces
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const SelectionRange range123(SelectionPosition(2, 3), SelectionPosition(1));
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const SelectionSegment segment12(1, 2);
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const SelectionSegment inside = range123.Intersect(segment12);
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REQUIRE(inside == segment12);
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const SelectionSegment segment121(SelectionPosition(1), SelectionPosition(2, 1));
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const SelectionSegment withVirtual = range123.Intersect(segment121);
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REQUIRE(withVirtual == segment121);
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const SelectionSegment segment052(SelectionPosition(0), SelectionPosition(5, 2));
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const SelectionSegment internal = range123.Intersect(segment052); // All inside
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REQUIRE(internal == range123.AsSegment());
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const SelectionSegment wayOut(SelectionPosition(100), SelectionPosition(105, 2));
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const SelectionSegment nothing = range123.Intersect(wayOut);
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REQUIRE(nothing == segmentEmpty);
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const SelectionSegment edge(1, 1);
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const SelectionSegment nowt = range123.Intersect(edge);
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REQUIRE(nowt == edge);
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// (0, 1) and (1, 2v3) touch so intersection is a single position.
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const SelectionSegment front(0, 1);
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const SelectionSegment single(1, 1);
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const SelectionSegment thin = range123.Intersect(front);
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REQUIRE(thin == single);
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}
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}
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TEST_CASE("Selection") {
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SECTION("Selection") {
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Selection sel;
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REQUIRE(sel.selType == Selection::SelTypes::stream);
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REQUIRE(!sel.IsRectangular());
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REQUIRE(sel.Count() == 1);
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REQUIRE(sel.Main() == 0);
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REQUIRE(sel.Range(0) == rangeZero);
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REQUIRE(sel.RangeMain() == rangeZero);
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REQUIRE(sel.Rectangular() == rangeInvalid);
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REQUIRE(sel.Empty());
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}
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SECTION("Serialization") {
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// Conversion to/from string form
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// Range from 5 with 3 virtual spaces to 2
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const SelectionRange range532(SelectionPosition(2), SelectionPosition(5, 3));
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Selection selection;
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selection.SetSelection(range532);
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const std::string selectionString(selection.ToString());
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// Opposite order to constructor: from anchor to caret
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REQUIRE(selectionString == "5v3-2");
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const SelectionRange selectionReturned(selectionString);
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REQUIRE(selection.selType == Selection::SelTypes::stream);
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REQUIRE(!selection.IsRectangular());
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REQUIRE(selection.Count() == 1);
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REQUIRE(selection.Main() == 0);
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REQUIRE(selection.Range(0) == range532);
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REQUIRE(selection.RangeMain() == range532);
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REQUIRE(selection.Rectangular() == rangeInvalid);
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REQUIRE(!selection.Empty());
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}
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SECTION("SerializationMultiple") {
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// Conversion to/from string form
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// Range from 5 with 3 virtual spaces to 2
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const SelectionRange range532(SelectionPosition(2), SelectionPosition(5, 3));
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const SelectionRange range1(SelectionPosition(1));
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Selection selection;
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selection.SetSelection(range532);
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selection.AddSelection(range1);
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selection.SetMain(1);
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const std::string selectionString(selection.ToString());
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REQUIRE(selectionString == "5v3-2,1#1");
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const SelectionRange selectionReturned(selectionString);
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REQUIRE(selection.selType == Selection::SelTypes::stream);
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REQUIRE(!selection.IsRectangular());
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REQUIRE(selection.Count() == 2);
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REQUIRE(selection.Main() == 1);
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REQUIRE(selection.Range(0) == range532);
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REQUIRE(selection.Range(1) == range1);
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REQUIRE(selection.RangeMain() == range1);
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REQUIRE(selection.Rectangular() == rangeInvalid);
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REQUIRE(!selection.Empty());
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}
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SECTION("SerializationRectangular") {
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// Conversion to/from string form
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// Range from 5 with 3 virtual spaces to 2
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const SelectionRange range532(SelectionPosition(2), SelectionPosition(5, 3));
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// Create a single-line rectangular selection
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Selection selection;
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selection.selType = Selection::SelTypes::rectangle;
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selection.Rectangular() = range532;
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// Set arbitrary realized range - inside editor ranges would be calculated from line layout
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selection.SetSelection(rangeZero);
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const std::string selectionString(selection.ToString());
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REQUIRE(selectionString == "R5v3-2");
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const Selection selectionReturned(selectionString);
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REQUIRE(selection.selType == Selection::SelTypes::rectangle);
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REQUIRE(selection.IsRectangular());
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REQUIRE(selection.Count() == 1);
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REQUIRE(selection.Main() == 0);
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REQUIRE(selection.Range(0) == rangeZero);
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REQUIRE(selection.RangeMain() == rangeZero);
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REQUIRE(selection.Rectangular() == range532);
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selection.selType = Selection::SelTypes::thin;
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const std::string thinString(selection.ToString());
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REQUIRE(thinString == "T5v3-2");
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}
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}
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