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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QTest>
#include <qline.h>
#include <qmath.h>
#include <private/qcomparisontesthelper_p.h>
#include <array>
class tst_QLine : public QObject
{
Q_OBJECT
private slots:
void testComparisonCompiles();
void testComparison_data();
void testComparison();
void testFuzzyCompare_data();
void testFuzzyCompare();
void testIsNull_data();
void testIsNull();
void testIntersection();
void testIntersection_data();
void testLength();
void testLength_data();
void testCenter();
void testCenter_data();
void testCenterF();
void testCenterF_data();
void testNormalVector();
void testNormalVector_data();
void testAngle2();
void testAngle2_data();
void testAngle3();
void testAngleTo();
void testAngleTo_data();
void testSet();
void toLineF_data();
void toLineF();
};
const qreal epsilon = sizeof(qreal) == sizeof(double) ? 1e-8 : 1e-4;
constexpr static qreal qreal_min = std::numeric_limits<qreal>::min();
void tst_QLine::testComparisonCompiles()
{
QTestPrivate::testEqualityOperatorsCompile<QLine>();
QTestPrivate::testEqualityOperatorsCompile<QLineF>();
QTestPrivate::testEqualityOperatorsCompile<QLineF, QLine>();
}
void tst_QLine::testComparison_data()
{
QTest::addColumn<double>("xa1");
QTest::addColumn<double>("ya1");
QTest::addColumn<double>("xa2");
QTest::addColumn<double>("ya2");
QTest::addColumn<double>("xb1");
QTest::addColumn<double>("yb1");
QTest::addColumn<double>("xb2");
QTest::addColumn<double>("yb2");
QTest::addColumn<bool>("result");
QTest::addColumn<bool>("floatResult");
QTest::addColumn<bool>("mixedResult");
auto row = [&](double xa1, double ya1, double xa2, double ya2,
double xb1, double yb1, double xb2, double yb2,
bool result, bool floatResult, bool mixedResult)
{
QString str;
QDebug dbg(&str);
dbg.nospace() << "[(" << xa1 << ", " << ya1 << "); (" << xa2 << ", " << ya2 << ")] vs [("
<< xb1 << ", " << yb1 << "); (" << xb2 << ", " << yb2 << ")]";
QTest::addRow("%s", str.toLatin1().constData())
<< xa1 << ya1 << xa2 << ya2 << xb1 << yb1 << xb2 << yb2
<< result << floatResult << mixedResult;
};
row(-1.0, -1.0, 1.0, 1.0, -1.0, -1.0, 1.0, 1.0, true, true, true);
row(-1.1, -0.9, 1.1, 0.9, -1.0, -1.0, 1.0, 1.0, true, false, false);
row(-1.0, -1.0, 1.0, 1.0, -0.9, -1.1, 0.9, 1.1, true, false, true);
row(-qreal_min, -1.0, 1.0, qreal_min, 0.0, -1.1, 0.9, 0.0, true, false, true);
}
void tst_QLine::testComparison()
{
QFETCH(double, xa1);
QFETCH(double, ya1);
QFETCH(double, xa2);
QFETCH(double, ya2);
QFETCH(double, xb1);
QFETCH(double, yb1);
QFETCH(double, xb2);
QFETCH(double, yb2);
QFETCH(bool, result);
QFETCH(bool, floatResult);
QFETCH(bool, mixedResult);
const QLineF l1f(xa1, ya1, xa2, ya2);
const QLine l1 = l1f.toLine();
const QLineF l2f(xb1, yb1, xb2, yb2);
const QLine l2 = l2f.toLine();
QT_TEST_EQUALITY_OPS(l1, l2, result);
QT_TEST_EQUALITY_OPS(l1f, l2f, floatResult);
QT_TEST_EQUALITY_OPS(l1f, l2, mixedResult);
}
void tst_QLine::testFuzzyCompare_data()
{
testComparison_data();
}
void tst_QLine::testFuzzyCompare()
{
QFETCH(double, xa1);
QFETCH(double, ya1);
QFETCH(double, xa2);
QFETCH(double, ya2);
QFETCH(double, xb1);
QFETCH(double, yb1);
QFETCH(double, xb2);
QFETCH(double, yb2);
QFETCH(bool, floatResult);
const QLineF l1f(xa1, ya1, xa2, ya2);
const QLineF l2f(xb1, yb1, xb2, yb2);
QCOMPARE_EQ(qFuzzyCompare(l1f, l2f), floatResult);
}
void tst_QLine::testIsNull_data()
{
QTest::addColumn<QLineF>("lineF");
QTest::addColumn<bool>("result");
QTest::addColumn<bool>("floatResult");
QTest::newRow("non-null") << QLineF(1.0, 1.0, 2.0, 2.0) << false << false;
QTest::newRow("null") << QLineF(1.0, 1.0, 1.0, 1.0) << true << true;
QTest::newRow("null_int_non-null_float") << QLineF(1.0, 1.0, 1.1, 1.1) << true << false;
QTest::newRow("with_qreal_min") << QLineF(-qreal_min, qreal_min, 0.0, 0.0) << true << true;
}
void tst_QLine::testIsNull()
{
QFETCH(QLineF, lineF);
QFETCH(bool, result);
QFETCH(bool, floatResult);
const QLine line = lineF.toLine();
QCOMPARE_EQ(line.isNull(), result);
QCOMPARE_EQ(lineF.isNull(), floatResult);
QCOMPARE_EQ(qFuzzyIsNull(lineF), floatResult);
}
void tst_QLine::testSet()
{
{
QLine l;
l.setP1(QPoint(1, 2));
l.setP2(QPoint(3, 4));
QCOMPARE(l.x1(), 1);
QCOMPARE(l.y1(), 2);
QCOMPARE(l.x2(), 3);
QCOMPARE(l.y2(), 4);
l.setPoints(QPoint(5, 6), QPoint(7, 8));
QCOMPARE(l.x1(), 5);
QCOMPARE(l.y1(), 6);
QCOMPARE(l.x2(), 7);
QCOMPARE(l.y2(), 8);
l.setLine(9, 10, 11, 12);
QCOMPARE(l.x1(), 9);
QCOMPARE(l.y1(), 10);
QCOMPARE(l.x2(), 11);
QCOMPARE(l.y2(), 12);
}
{
QLineF l;
l.setP1(QPointF(1, 2));
l.setP2(QPointF(3, 4));
QCOMPARE(l.x1(), 1.0);
QCOMPARE(l.y1(), 2.0);
QCOMPARE(l.x2(), 3.0);
QCOMPARE(l.y2(), 4.0);
l.setPoints(QPointF(5, 6), QPointF(7, 8));
QCOMPARE(l.x1(), 5.0);
QCOMPARE(l.y1(), 6.0);
QCOMPARE(l.x2(), 7.0);
QCOMPARE(l.y2(), 8.0);
l.setLine(9.0, 10.0, 11.0, 12.0);
QCOMPARE(l.x1(), 9.0);
QCOMPARE(l.y1(), 10.0);
QCOMPARE(l.x2(), 11.0);
QCOMPARE(l.y2(), 12.0);
}
}
void tst_QLine::testIntersection_data()
{
QTest::addColumn<double>("xa1");
QTest::addColumn<double>("ya1");
QTest::addColumn<double>("xa2");
QTest::addColumn<double>("ya2");
QTest::addColumn<double>("xb1");
QTest::addColumn<double>("yb1");
QTest::addColumn<double>("xb2");
QTest::addColumn<double>("yb2");
QTest::addColumn<int>("type");
QTest::addColumn<double>("ix");
QTest::addColumn<double>("iy");
QTest::newRow("parallel") << 1.0 << 1.0 << 3.0 << 4.0
<< 5.0 << 6.0 << 7.0 << 9.0
<< int(QLineF::NoIntersection) << 0.0 << 0.0;
QTest::newRow("unbounded") << 1.0 << 1.0 << 5.0 << 5.0
<< 0.0 << 4.0 << 3.0 << 4.0
<< int(QLineF::UnboundedIntersection) << 4.0 << 4.0;
QTest::newRow("bounded") << 1.0 << 1.0 << 5.0 << 5.0
<< 0.0 << 4.0 << 5.0 << 4.0
<< int(QLineF::BoundedIntersection) << 4.0 << 4.0;
QTest::newRow("almost vertical") << 0.0 << 10.0 << 20.0000000000001 << 10.0
<< 10.0 << 0.0 << 10.0 << 20.0
<< int(QLineF::BoundedIntersection) << 10.0 << 10.0;
QTest::newRow("almost horizontal") << 0.0 << 10.0 << 20.0 << 10.0
<< 10.0000000000001 << 0.0 << 10.0 << 20.0
<< int(QLineF::BoundedIntersection) << 10.0 << 10.0;
QTest::newRow("long vertical") << 100.1599256468623
<< 100.7861905065196
<< 100.1599256468604
<< -9999.78619050651
<< 10.0 << 50.0 << 190.0 << 50.0
<< int(QLineF::BoundedIntersection)
<< 100.1599256468622
<< 50.0;
for (int i = 0; i < 1000; ++i) {
QLineF a = QLineF::fromPolar(50, i);
a.setP1(-a.p2());
QLineF b = QLineF::fromPolar(50, i * 0.997 + 90);
b.setP1(-b.p2());
// make the qFuzzyCompare be a bit more lenient
a = a.translated(1, 1);
b = b.translated(1, 1);
QTest::newRow(("rotation-" + QByteArray::number(i)).constData())
<< (double)a.x1() << (double)a.y1() << (double)a.x2() << (double)a.y2()
<< (double)b.x1() << (double)b.y1() << (double)b.x2() << (double)b.y2()
<< int(QLineF::BoundedIntersection)
<< 1.0
<< 1.0;
}
}
void tst_QLine::testIntersection()
{
QFETCH(double, xa1);
QFETCH(double, ya1);
QFETCH(double, xa2);
QFETCH(double, ya2);
QFETCH(double, xb1);
QFETCH(double, yb1);
QFETCH(double, xb2);
QFETCH(double, yb2);
QFETCH(int, type);
QFETCH(double, ix);
QFETCH(double, iy);
QLineF a(xa1, ya1, xa2, ya2);
QLineF b(xb1, yb1, xb2, yb2);
QPointF ip;
QLineF::IntersectionType itype = a.intersects(b, &ip);
QCOMPARE(int(itype), type);
if (type != QLineF::NoIntersection) {
QVERIFY(qAbs(ip.x() - ix) < epsilon);
QVERIFY(qAbs(ip.y() - iy) < epsilon);
}
}
void tst_QLine::testLength_data()
{
QTest::addColumn<double>("x1");
QTest::addColumn<double>("y1");
QTest::addColumn<double>("x2");
QTest::addColumn<double>("y2");
QTest::addColumn<double>("length");
QTest::addColumn<double>("lengthToSet");
QTest::addColumn<double>("vx");
QTest::addColumn<double>("vy");
// Test name: [dx,dy]->|lenToSet| (x1,x2)
// with the last part omitted if (0,0)
QTest::newRow("[1,0]->|2|") << 0.0 << 0.0 << 1.0 << 0.0 << 1.0 << 2.0 << 2.0 << 0.0;
QTest::newRow("[0,1]->|2|") << 0.0 << 0.0 << 0.0 << 1.0 << 1.0 << 2.0 << 0.0 << 2.0;
QTest::newRow("[-1,0]->|2|") << 0.0 << 0.0 << -1.0 << 0.0 << 1.0 << 2.0 << -2.0 << 0.0;
QTest::newRow("[0,-1]->|2|") << 0.0 << 0.0 << 0.0 << -1.0 << 1.0 << 2.0 << 0.0 << -2.0;
QTest::newRow("[1,1]->->|1|") << 0.0 << 0.0 << 1.0 << 1.0
<< M_SQRT2 << 1.0 << M_SQRT1_2 << M_SQRT1_2;
QTest::newRow("[-1,1]->|1|") << 0.0 << 0.0 << -1.0 << 1.0
<< M_SQRT2 << 1.0 << -M_SQRT1_2 << M_SQRT1_2;
QTest::newRow("[1,-1]->|1|") << 0.0 << 0.0 << 1.0 << -1.0
<< M_SQRT2 << 1.0 << M_SQRT1_2 << -M_SQRT1_2;
QTest::newRow("[-1,-1]->|1|") << 0.0 << 0.0 << -1.0 << -1.0
<< M_SQRT2 << 1.0 << -M_SQRT1_2 << -M_SQRT1_2;
QTest::newRow("[1,0]->|2| (2,2)") << 2.0 << 2.0 << 3.0 << 2.0 << 1.0 << 2.0 << 2.0 << 0.0;
QTest::newRow("[0,1]->|2| (2,2)") << 2.0 << 2.0 << 2.0 << 3.0 << 1.0 << 2.0 << 0.0 << 2.0;
QTest::newRow("[-1,0]->|2| (2,2)") << 2.0 << 2.0 << 1.0 << 2.0 << 1.0 << 2.0 << -2.0 << 0.0;
QTest::newRow("[0,-1]->|2| (2,2)") << 2.0 << 2.0 << 2.0 << 1.0 << 1.0 << 2.0 << 0.0 << -2.0;
QTest::newRow("[1,1]->|1| (2,2)") << 2.0 << 2.0 << 3.0 << 3.0
<< M_SQRT2 << 1.0 << M_SQRT1_2 << M_SQRT1_2;
QTest::newRow("[-1,1]->|1| (2,2)") << 2.0 << 2.0 << 1.0 << 3.0
<< M_SQRT2 << 1.0 << -M_SQRT1_2 << M_SQRT1_2;
QTest::newRow("[1,-1]->|1| (2,2)") << 2.0 << 2.0 << 3.0 << 1.0
<< M_SQRT2 << 1.0 << M_SQRT1_2 << -M_SQRT1_2;
QTest::newRow("[-1,-1]->|1| (2,2)") << 2.0 << 2.0 << 1.0 << 1.0
<< M_SQRT2 << 1.0 << -M_SQRT1_2 << -M_SQRT1_2;
const double small = qSqrt(std::numeric_limits<qreal>::denorm_min()) / 8;
QTest::newRow("[small,small]->|2| (-small/2,-small/2)")
<< -(small * .5) << -(small * .5) << (small * .5) << (small * .5)
<< (small * M_SQRT2) << (2 * M_SQRT2) << 2.0 << 2.0;
const double tiny = std::numeric_limits<qreal>::min() / 2;
QTest::newRow("[tiny,tiny]->|2| (-tiny/2,-tiny/2)")
<< -(tiny * .5) << -(tiny * .5) << (tiny * .5) << (tiny * .5)
<< (tiny * M_SQRT2) << (2 * M_SQRT2) << 2.0 << 2.0;
QTest::newRow("[1+3e-13,1+4e-13]|1895| (1, 1)")
<< 1.0 << 1.0 << (1 + 3e-13) << (1 + 4e-13)
<< 5e-13 << 1895.0 << 1137.0 << 1516.0;
QTest::newRow("[4e-323,5e-324]|1892|") // Unavoidable underflow: denormals
<< 0.0 << 0.0 << 4e-323 << 5e-324
<< 4e-323 << 1892.0 << 4e-323 << 5e-324; // vx, vy values ignored
}
void tst_QLine::testLength()
{
QFETCH(double, x1);
QFETCH(double, y1);
QFETCH(double, x2);
QFETCH(double, y2);
QFETCH(double, length);
QFETCH(double, lengthToSet);
QFETCH(double, vx);
QFETCH(double, vy);
QLineF l(x1, y1, x2, y2);
QCOMPARE(l.length(), qreal(length));
l.setLength(lengthToSet);
QT_IGNORE_DEPRECATIONS(constexpr bool has_denorm = std::numeric_limits<double>::has_denorm != std::denorm_present;)
if constexpr (has_denorm) {
if (qstrcmp(QTest::currentDataTag(), "[tiny,tiny]->|2| (-tiny/2,-tiny/2)") == 0
|| qstrcmp(QTest::currentDataTag(), "[4e-323,5e-324]|1892|") == 0) {
QSKIP("Skipping 'denorm' as this type lacks denormals on this system");
}
}
// Scaling tiny values up to big can be imprecise: don't try to test vx, vy
if (length > 0 && qFuzzyIsNull(length)) {
QVERIFY(l.length() > lengthToSet / 2 && l.length() < lengthToSet * 2);
} else {
QCOMPARE(l.length(), length > 0 ? qreal(lengthToSet) : qreal(length));
QCOMPARE(l.dx(), qreal(vx));
QCOMPARE(l.dy(), qreal(vy));
}
}
void tst_QLine::testCenter()
{
QFETCH(int, x1);
QFETCH(int, y1);
QFETCH(int, x2);
QFETCH(int, y2);
QFETCH(int, centerX);
QFETCH(int, centerY);
const QPoint c = QLine(x1, y1, x2, y2).center();
QCOMPARE(centerX, c.x());
QCOMPARE(centerY, c.y());
}
void tst_QLine::testCenter_data()
{
QTest::addColumn<int>("x1");
QTest::addColumn<int>("y1");
QTest::addColumn<int>("x2");
QTest::addColumn<int>("y2");
QTest::addColumn<int>("centerX");
QTest::addColumn<int>("centerY");
QTest::newRow("[0, 0]") << 0 << 0 << 0 << 0 << 0 << 0;
QTest::newRow("top") << 0 << 0 << 2 << 0 << 1 << 0;
QTest::newRow("right") << 0 << 0 << 0 << 2 << 0 << 1;
QTest::newRow("bottom") << 0 << 0 << -2 << 0 << -1 << 0;
QTest::newRow("left") << 0 << 0 << 0 << -2 << 0 << -1;
QTest::newRow("precision+") << 0 << 0 << 1 << 1 << 0 << 0;
QTest::newRow("precision-") << -1 << -1 << 0 << 0 << 0 << 0;
const int max = std::numeric_limits<int>::max();
const int min = std::numeric_limits<int>::min();
QTest::newRow("max") << max << max << max << max << max << max;
QTest::newRow("min") << min << min << min << min << min << min;
QTest::newRow("minmax") << min << min << max << max << 0 << 0;
}
void tst_QLine::testCenterF()
{
QFETCH(double, x1);
QFETCH(double, y1);
QFETCH(double, x2);
QFETCH(double, y2);
QFETCH(double, centerX);
QFETCH(double, centerY);
const QPointF c = QLineF(x1, y1, x2, y2).center();
QCOMPARE(centerX, c.x());
QCOMPARE(centerY, c.y());
}
void tst_QLine::testCenterF_data()
{
QTest::addColumn<double>("x1");
QTest::addColumn<double>("y1");
QTest::addColumn<double>("x2");
QTest::addColumn<double>("y2");
QTest::addColumn<double>("centerX");
QTest::addColumn<double>("centerY");
QTest::newRow("[0, 0]") << 0.0 << 0.0 << 0.0 << 0.0 << 0.0 << 0.0;
QTest::newRow("top") << 0.0 << 0.0 << 1.0 << 0.0 << 0.5 << 0.0;
QTest::newRow("right") << 0.0 << 0.0 << 0.0 << 1.0 << 0.0 << 0.5;
QTest::newRow("bottom") << 0.0 << 0.0 << -1.0 << 0.0 << -0.5 << 0.0;
QTest::newRow("left") << 0.0 << 0.0 << 0.0 << -1.0 << 0.0 << -0.5;
const double max = std::numeric_limits<qreal>::max();
QTest::newRow("max") << max << max << max << max << max << max;
}
void tst_QLine::testNormalVector_data()
{
QTest::addColumn<double>("x1");
QTest::addColumn<double>("y1");
QTest::addColumn<double>("x2");
QTest::addColumn<double>("y2");
QTest::addColumn<double>("nvx");
QTest::addColumn<double>("nvy");
QTest::newRow("[1, 0]") << 0.0 << 0.0 << 1.0 << 0.0 << 0.0 << -1.0;
QTest::newRow("[-1, 0]") << 0.0 << 0.0 << -1.0 << 0.0 << 0.0 << 1.0;
QTest::newRow("[0, 1]") << 0.0 << 0.0 << 0.0 << 1.0 << 1.0 << 0.0;
QTest::newRow("[0, -1]") << 0.0 << 0.0 << 0.0 << -1.0 << -1.0 << 0.0;
QTest::newRow("[2, 3]") << 2.0 << 3.0 << 4.0 << 6.0 << 3.0 << -2.0;
}
void tst_QLine::testNormalVector()
{
QFETCH(double, x1);
QFETCH(double, y1);
QFETCH(double, x2);
QFETCH(double, y2);
QFETCH(double, nvx);
QFETCH(double, nvy);
QLineF l(x1, y1, x2, y2);
QLineF n = l.normalVector();
QCOMPARE(l.x1(), n.x1());
QCOMPARE(l.y1(), n.y1());
QCOMPARE(n.dx(), qreal(nvx));
QCOMPARE(n.dy(), qreal(nvy));
}
void tst_QLine::testAngle2_data()
{
QTest::addColumn<qreal>("x1");
QTest::addColumn<qreal>("y1");
QTest::addColumn<qreal>("x2");
QTest::addColumn<qreal>("y2");
QTest::addColumn<qreal>("angle");
QTest::newRow("right") << qreal(0.0) << qreal(0.0) << qreal(10.0) << qreal(0.0) << qreal(0.0);
QTest::newRow("left") << qreal(0.0) << qreal(0.0) << qreal(-10.0) << qreal(0.0) << qreal(180.0);
QTest::newRow("up") << qreal(0.0) << qreal(0.0) << qreal(0.0) << qreal(-10.0) << qreal(90.0);
QTest::newRow("down") << qreal(0.0) << qreal(0.0) << qreal(0.0) << qreal(10.0) << qreal(270.0);
QTest::newRow("diag a") << qreal(0.0) << qreal(0.0) << qreal(10.0) << qreal(-10.0) << qreal(45.0);
QTest::newRow("diag b") << qreal(0.0) << qreal(0.0) << qreal(-10.0) << qreal(-10.0) << qreal(135.0);
QTest::newRow("diag c") << qreal(0.0) << qreal(0.0) << qreal(-10.0) << qreal(10.0) << qreal(225.0);
QTest::newRow("diag d") << qreal(0.0) << qreal(0.0) << qreal(10.0) << qreal(10.0) << qreal(315.0);
}
void tst_QLine::testAngle2()
{
QFETCH(qreal, x1);
QFETCH(qreal, y1);
QFETCH(qreal, x2);
QFETCH(qreal, y2);
QFETCH(qreal, angle);
QLineF line(x1, y1, x2, y2);
QCOMPARE(line.angle(), angle);
QLineF polar = QLineF::fromPolar(line.length(), angle);
QVERIFY(qAbs(line.x1() - polar.x1()) < epsilon);
QVERIFY(qAbs(line.y1() - polar.y1()) < epsilon);
QVERIFY(qAbs(line.x2() - polar.x2()) < epsilon);
QVERIFY(qAbs(line.y2() - polar.y2()) < epsilon);
}
void tst_QLine::testAngle3()
{
for (int i = -720; i <= 720; ++i) {
QLineF line(0, 0, 100, 0);
line.setAngle(i);
const int expected = (i + 720) % 360;
QVERIFY2(qAbs(line.angle() - qreal(expected)) < epsilon, qPrintable(QString::fromLatin1("value: %1").arg(i)));
QCOMPARE(line.length(), qreal(100.0));
QCOMPARE(QLineF::fromPolar(100.0, i), line);
}
}
void tst_QLine::testAngleTo()
{
QFETCH(qreal, xa1);
QFETCH(qreal, ya1);
QFETCH(qreal, xa2);
QFETCH(qreal, ya2);
QFETCH(qreal, xb1);
QFETCH(qreal, yb1);
QFETCH(qreal, xb2);
QFETCH(qreal, yb2);
QFETCH(qreal, angle);
QLineF a(xa1, ya1, xa2, ya2);
QLineF b(xb1, yb1, xb2, yb2);
const qreal resultAngle = a.angleTo(b);
QVERIFY(qAbs(resultAngle - angle) < epsilon);
a.translate(b.p1() - a.p1());
a.setAngle(a.angle() + resultAngle);
a.setLength(b.length());
QCOMPARE(a, b);
}
void tst_QLine::testAngleTo_data()
{
QTest::addColumn<qreal>("xa1");
QTest::addColumn<qreal>("ya1");
QTest::addColumn<qreal>("xa2");
QTest::addColumn<qreal>("ya2");
QTest::addColumn<qreal>("xb1");
QTest::addColumn<qreal>("yb1");
QTest::addColumn<qreal>("xb2");
QTest::addColumn<qreal>("yb2");
QTest::addColumn<qreal>("angle");
QTest::newRow("parallel") << qreal(1.0) << qreal(1.0) << qreal(3.0) << qreal(4.0)
<< qreal(5.0) << qreal(6.0) << qreal(7.0) << qreal(9.0)
<< qreal(0.0);
QTest::newRow("[4,4]-[4,0]") << qreal(1.0) << qreal(1.0) << qreal(5.0) << qreal(5.0)
<< qreal(0.0) << qreal(4.0) << qreal(3.0) << qreal(4.0)
<< qreal(45.0);
QTest::newRow("[4,4]-[-4,0]") << qreal(1.0) << qreal(1.0) << qreal(5.0) << qreal(5.0)
<< qreal(3.0) << qreal(4.0) << qreal(0.0) << qreal(4.0)
<< qreal(225.0);
for (int i = 0; i < 360; ++i) {
const QLineF l = QLineF::fromPolar(1, i);
QTest::newRow(("angle:" + QByteArray::number(i)).constData())
<< qreal(0.0) << qreal(0.0) << qreal(1.0) << qreal(0.0)
<< qreal(0.0) << qreal(0.0) << l.p2().x() << l.p2().y()
<< qreal(i);
}
}
void tst_QLine::toLineF_data()
{
QTest::addColumn<QLine>("input");
QTest::addColumn<QLineF>("result");
auto row = [](int x1, int y1, int x2, int y2) {
QTest::addRow("((%d, %d)->(%d, %d))", x1, y1, x2, y2)
<< QLine(x1, y1, x2, y2) << QLineF(x1, y1, x2, y2);
};
constexpr std::array samples = {-1, 0, 1};
for (int x1 : samples) {
for (int y1 : samples) {
for (int x2 : samples) {
for (int y2 : samples) {
row(x1, y1, x2, y2);
}
}
}
}
}
void tst_QLine::toLineF()
{
QFETCH(const QLine, input);
QFETCH(const QLineF, result);
QCOMPARE(input.toLineF(), result);
}
namespace ConstexprTests {
constexpr QLine l = QLine(1, 2, 3, 4).translated(5, 6);
static_assert(l.x1() == 6);
static_assert(l.x2() == 8);
static_assert(l.y1() == 8);
static_assert(l.y2() == 10);
constexpr QLineF lf = QLineF(1.0, 2.0, 3.0, 4.0).translated(5.0, 6.0);
static_assert(lf.x1() == 6.0);
static_assert(lf.x2() == 8.0);
static_assert(lf.y1() == 8.0);
static_assert(lf.y2() == 10.0);
} // namespace ConstexprTests
QTEST_MAIN(tst_QLine)
#include "tst_qline.moc"