Move tests for QCuboidGeometry into extras

Change-Id: I6ffb9e0a743dfad78624b2edcfa2d93d69d685dd
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

3 files changed, 519 insertions, 0 deletions

diff --git a/tests/auto/extras/extras.pro b/tests/auto/extras/extras.pro
new file mode 100644
index 000000000..3bba4d37b
--- /dev/null
+++ b/tests/auto/extras/extras.pro
@@ -0,0 +1,4 @@
+TEMPLATE = subdirs
+
+SUBDIRS = \
+        qcuboidgeometry
diff --git a/tests/auto/extras/qcuboidgeometry/qcuboidgeometry.pro b/tests/auto/extras/qcuboidgeometry/qcuboidgeometry.pro
new file mode 100644
index 000000000..7208f1c7b
--- /dev/null
+++ b/tests/auto/extras/qcuboidgeometry/qcuboidgeometry.pro
@@ -0,0 +1,10 @@
+TEMPLATE = app
+
+TARGET = tst_qcuboidgeometry
+
+QT += 3dextras testlib
+
+CONFIG += testcase
+
+SOURCES += \
+    tst_qcuboidgeometry.cpp
diff --git a/tests/auto/extras/qcuboidgeometry/tst_qcuboidgeometry.cpp b/tests/auto/extras/qcuboidgeometry/tst_qcuboidgeometry.cpp
new file mode 100644
index 000000000..ddd9eed22
--- /dev/null
+++ b/tests/auto/extras/qcuboidgeometry/tst_qcuboidgeometry.cpp
@@ -0,0 +1,505 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtTest/QTest>
+#include <QObject>
+#include <Qt3DExtras/qcuboidgeometry.h>
+#include <Qt3DRender/qattribute.h>
+#include <Qt3DRender/qbuffer.h>
+#include <Qt3DRender/qbufferdatagenerator.h>
+#include <QtGui/qopenglcontext.h>
+#include <QtGui/qvector2d.h>
+#include <QtGui/qvector3d.h>
+#include <QtGui/qvector4d.h>
+#include <QtCore/qdebug.h>
+#include <QtCore/qsharedpointer.h>
+#include <QSignalSpy>
+
+namespace {
+
+void generateGeometry(Qt3DRender::QGeometry &geometry)
+{
+    // Get all attributes
+    const QVector<Qt3DRender::QAttribute *> attributes = geometry.attributes();
+
+    // Get all unique data generators from the buffers referenced by the attributes
+    QHash<Qt3DRender::QBufferDataGeneratorPtr, Qt3DRender::QBuffer *> dataGenerators;
+    for (const auto attribute : attributes) {
+        const auto dataGenerator = attribute->buffer()->dataGenerator();
+        if (!dataGenerators.contains(dataGenerator))
+            dataGenerators.insert(dataGenerator, attribute->buffer());
+    }
+
+    // Generate data for each buffer
+    const auto end = dataGenerators.end();
+    for (auto it = dataGenerators.begin(); it != end; ++it) {
+        Qt3DRender::QBufferDataGeneratorPtr dataGenerator = it.key();
+        const QByteArray data = (*dataGenerator)();
+
+        Qt3DRender::QBuffer *buffer = it.value();
+        buffer->setData(data);
+    }
+}
+
+template<typename IndexType>
+IndexType extractIndexData(Qt3DRender::QAttribute *attribute, int index)
+{
+    // Get the raw data
+    const IndexType *typedData = reinterpret_cast<const IndexType *>(attribute->buffer()->data().constData());
+
+    // Offset into the data taking stride and offset into account
+    const IndexType indexValue = *(typedData + index);
+    return indexValue;
+}
+
+template<typename VertexType, typename IndexType>
+VertexType extractVertexData(Qt3DRender::QAttribute *attribute, IndexType index)
+{
+    // Get the raw data
+    const char *rawData = attribute->buffer()->data().constData();
+
+    // Offset into the data taking stride and offset into account
+    const char *vertexData = rawData + (index * attribute->byteStride() + attribute->byteOffset());
+
+    // Construct vertex from the typed data
+    VertexType vertex;
+    const Qt3DRender::QAttribute::VertexBaseType type = attribute->vertexBaseType();
+    switch (type)
+    {
+    case Qt3DRender::QAttribute::Float: {
+        const float *typedVertexData = reinterpret_cast<const float *>(vertexData);
+        const int components = attribute->vertexSize();
+        for (int i = 0; i < components; ++i)
+            vertex[i] = typedVertexData[i];
+        break;
+
+        // TODO: Handle other types as needed
+    }
+
+    default:
+        qWarning() << "Unhandled type";
+        Q_UNREACHABLE();
+        break;
+    }
+
+    return vertex;
+}
+
+}
+
+class tst_QCuboidGeometry : public QObject
+{
+    Q_OBJECT
+private Q_SLOTS:
+    void defaultConstruction()
+    {
+        // WHEN
+        Qt3DExtras::QCuboidGeometry geometry;
+
+        // THEN
+        QCOMPARE(geometry.xExtent(), 1.0f);
+        QCOMPARE(geometry.yExtent(), 1.0f);
+        QCOMPARE(geometry.zExtent(), 1.0f);
+        QCOMPARE(geometry.xyMeshResolution(), QSize(2, 2));
+        QCOMPARE(geometry.yzMeshResolution(), QSize(2, 2));
+        QCOMPARE(geometry.xzMeshResolution(), QSize(2, 2));
+        QVERIFY(geometry.positionAttribute() != nullptr);
+        QCOMPARE(geometry.positionAttribute()->name(), Qt3DRender::QAttribute::defaultPositionAttributeName());
+        QVERIFY(geometry.normalAttribute() != nullptr);
+        QCOMPARE(geometry.normalAttribute()->name(), Qt3DRender::QAttribute::defaultNormalAttributeName());
+        QVERIFY(geometry.texCoordAttribute() != nullptr);
+        QCOMPARE(geometry.texCoordAttribute()->name(), Qt3DRender::QAttribute::defaultTextureCoordinateAttributeName());
+        QVERIFY(geometry.tangentAttribute() != nullptr);
+        QCOMPARE(geometry.tangentAttribute()->name(), Qt3DRender::QAttribute::defaultTangentAttributeName());
+        QVERIFY(geometry.indexAttribute() != nullptr);
+    }
+
+    void properties()
+    {
+        // GIVEN
+        Qt3DExtras::QCuboidGeometry geometry;
+
+        {
+            // WHEN
+            QSignalSpy spy(&geometry, SIGNAL(xExtentChanged(float)));
+            const float newValue = 2.0f;
+            geometry.setXExtent(newValue);
+
+            // THEN
+            QCOMPARE(geometry.xExtent(), newValue);
+            QCOMPARE(spy.count(), 1);
+
+            // WHEN
+            spy.clear();
+            geometry.setXExtent(newValue);
+
+            // THEN
+            QCOMPARE(geometry.xExtent(), newValue);
+            QCOMPARE(spy.count(), 0);
+        }
+
+        {
+            // WHEN
+            QSignalSpy spy(&geometry, SIGNAL(yExtentChanged(float)));
+            const float newValue = 2.0f;
+            geometry.setYExtent(newValue);
+
+            // THEN
+            QCOMPARE(geometry.yExtent(), newValue);
+            QCOMPARE(spy.count(), 1);
+
+            // WHEN
+            spy.clear();
+            geometry.setYExtent(newValue);
+
+            // THEN
+            QCOMPARE(geometry.yExtent(), newValue);
+            QCOMPARE(spy.count(), 0);
+        }
+
+        {
+            // WHEN
+            QSignalSpy spy(&geometry, SIGNAL(zExtentChanged(float)));
+            const float newValue = 2.0f;
+            geometry.setZExtent(newValue);
+
+            // THEN
+            QCOMPARE(geometry.zExtent(), newValue);
+            QCOMPARE(spy.count(), 1);
+
+            // WHEN
+            spy.clear();
+            geometry.setZExtent(newValue);
+
+            // THEN
+            QCOMPARE(geometry.zExtent(), newValue);
+            QCOMPARE(spy.count(), 0);
+        }
+
+        {
+            // WHEN
+            QSignalSpy spy(&geometry, SIGNAL(xyMeshResolutionChanged(QSize)));
+            const auto newValue = QSize(4, 8);
+            geometry.setXYMeshResolution(newValue);
+
+            // THEN
+            QCOMPARE(geometry.xyMeshResolution(), newValue);
+            QCOMPARE(spy.count(), 1);
+
+            // WHEN
+            spy.clear();
+            geometry.setXYMeshResolution(newValue);
+
+            // THEN
+            QCOMPARE(geometry.xyMeshResolution(), newValue);
+            QCOMPARE(spy.count(), 0);
+        }
+
+        {
+            // WHEN
+            QSignalSpy spy(&geometry, SIGNAL(yzMeshResolutionChanged(QSize)));
+            const auto newValue = QSize(4, 8);
+            geometry.setYZMeshResolution(newValue);
+
+            // THEN
+            QCOMPARE(geometry.yzMeshResolution(), newValue);
+            QCOMPARE(spy.count(), 1);
+
+            // WHEN
+            spy.clear();
+            geometry.setYZMeshResolution(newValue);
+
+            // THEN
+            QCOMPARE(geometry.yzMeshResolution(), newValue);
+            QCOMPARE(spy.count(), 0);
+        }
+
+        {
+            // WHEN
+            QSignalSpy spy(&geometry, SIGNAL(xzMeshResolutionChanged(QSize)));
+            const auto newValue = QSize(4, 8);
+            geometry.setXZMeshResolution(newValue);
+
+            // THEN
+            QCOMPARE(geometry.xzMeshResolution(), newValue);
+            QCOMPARE(spy.count(), 1);
+
+            // WHEN
+            spy.clear();
+            geometry.setXZMeshResolution(newValue);
+
+            // THEN
+            QCOMPARE(geometry.xzMeshResolution(), newValue);
+            QCOMPARE(spy.count(), 0);
+        }
+    }
+
+    void generatedGeometryShouldBeConsistent_data()
+    {
+        QTest::addColumn<float>("xExtent");
+        QTest::addColumn<float>("yExtent");
+        QTest::addColumn<float>("zExtent");
+        QTest::addColumn<QSize>("xyMeshResolution");
+        QTest::addColumn<QSize>("yzMeshResolution");
+        QTest::addColumn<QSize>("xzMeshResolution");
+        QTest::addColumn<int>("triangleIndex");
+        QTest::addColumn<QVector<quint16>>("indices");
+        QTest::addColumn<QVector<QVector3D>>("positions");
+        QTest::addColumn<QVector<QVector3D>>("normals");
+        QTest::addColumn<QVector<QVector2D>>("texCoords");
+        QTest::addColumn<QVector<QVector4D>>("tangents");
+
+        {
+            const int triangleIndex = 0;
+            const auto indices = (QVector<quint16>() << 0 << 1 << 2);
+            const auto positions = (QVector<QVector3D>()
+                    << QVector3D(0.5f, -0.5f, -0.5f)
+                    << QVector3D(0.5f, 0.5f, -0.5f)
+                    << QVector3D(0.5f, -0.5f, 0.5f));
+            const auto normals = (QVector<QVector3D>()
+                    << QVector3D(1.0f, 0.0f, 0.0f)
+                    << QVector3D(1.0f, 0.0f, 0.0f)
+                    << QVector3D(1.0f, 0.0f, 0.0f));
+            const auto texCoords = (QVector<QVector2D>()
+                    << QVector2D(0.0f, 0.0f)
+                    << QVector2D(0.0f, 1.0f)
+                    << QVector2D(1.0f, 0.0f));
+            const auto tangents = (QVector<QVector4D>()
+                    << QVector4D(0.0f, 0.0f, 1.0f, -1.0f)
+                    << QVector4D(0.0f, 0.0f, 1.0f, -1.0f)
+                    << QVector4D(0.0f, 0.0f, 1.0f, -1.0f));
+            QTest::newRow("default_positiveX_firstTriangle")
+                    << 1.0f << 1.0f << 1.0f
+                    << QSize(2,2) << QSize(2,2) << QSize(2,2)
+                    << triangleIndex
+                    << indices << positions << normals << texCoords << tangents;
+        }
+
+        {
+            const int triangleIndex = 3;
+            const auto indices = (QVector<quint16>() << 6 << 5 << 7);
+            const auto positions = (QVector<QVector3D>()
+                    << QVector3D(-0.5f, -0.5f, -0.5f)
+                    << QVector3D(-0.5f, 0.5f, 0.5f)
+                    << QVector3D(-0.5f, 0.5f, -0.5f));
+            const auto normals = (QVector<QVector3D>()
+                    << QVector3D(-1.0f, 0.0f, 0.0f)
+                    << QVector3D(-1.0f, 0.0f, 0.0f)
+                    << QVector3D(-1.0f, 0.0f, 0.0f));
+            const auto texCoords = (QVector<QVector2D>()
+                    << QVector2D(1.0f, 0.0f)
+                    << QVector2D(0.0f, 1.0f)
+                    << QVector2D(1.0f, 1.0f));
+            const auto tangents = (QVector<QVector4D>()
+                    << QVector4D(0.0f, 0.0f, -1.0f, -1.0f)
+                    << QVector4D(0.0f, 0.0f, -1.0f, -1.0f)
+                    << QVector4D(0.0f, 0.0f, -1.0f, -1.0f));
+            QTest::newRow("default_negativeX_lastTriangle")
+                    << 1.0f << 1.0f << 1.0f
+                    << QSize(2,2) << QSize(2,2) << QSize(2,2)
+                    << triangleIndex
+                    << indices << positions << normals << texCoords << tangents;
+        }
+
+        {
+            const int triangleIndex = 4;
+            const auto indices = (QVector<quint16>() << 8 << 9 << 10);
+            const auto positions = (QVector<QVector3D>()
+                    << QVector3D(-0.5f, 0.5f, 0.5f)
+                    << QVector3D(0.5f, 0.5f, 0.5f)
+                    << QVector3D(-0.5f, 0.5f, -0.5f));
+            const auto normals = (QVector<QVector3D>()
+                    << QVector3D(0.0f, 1.0f, 0.0f)
+                    << QVector3D(0.0f, 1.0f, 0.0f)
+                    << QVector3D(0.0f, 1.0f, 0.0f));
+            const auto texCoords = (QVector<QVector2D>()
+                    << QVector2D(0.0f, 0.0f)
+                    << QVector2D(1.0f, 0.0f)
+                    << QVector2D(0.0f, 1.0f));
+            const auto tangents = (QVector<QVector4D>()
+                    << QVector4D(1.0f, 0.0f, 0.0f, 1.0f)
+                    << QVector4D(1.0f, 0.0f, 0.0f, 1.0f)
+                    << QVector4D(1.0f, 0.0f, 0.0f, 1.0f));
+            QTest::newRow("default_positiveY_firstTriangle")
+                    << 1.0f << 1.0f << 1.0f
+                    << QSize(2,2) << QSize(2,2) << QSize(2,2)
+                    << triangleIndex
+                    << indices << positions << normals << texCoords << tangents;
+        }
+
+        {
+            const int triangleIndex = 7;
+            const auto indices = (QVector<quint16>() << 14 << 13 << 15);
+            const auto positions = (QVector<QVector3D>()
+                    << QVector3D(-0.5f, -0.5f, 0.5f)
+                    << QVector3D(0.5f, -0.5f, -0.5f)
+                    << QVector3D(0.5f, -0.5f, 0.5f));
+            const auto normals = (QVector<QVector3D>()
+                    << QVector3D(0.0f, -1.0f, 0.0f)
+                    << QVector3D(0.0f, -1.0f, 0.0f)
+                    << QVector3D(0.0f, -1.0f, 0.0f));
+            const auto texCoords = (QVector<QVector2D>()
+                    << QVector2D(0.0f, 1.0f)
+                    << QVector2D(1.0f, 0.0f)
+                    << QVector2D(1.0f, 1.0f));
+            const auto tangents = (QVector<QVector4D>()
+                    << QVector4D(1.0f, 0.0f, 0.0f, 1.0f)
+                    << QVector4D(1.0f, 0.0f, 0.0f, 1.0f)
+                    << QVector4D(1.0f, 0.0f, 0.0f, 1.0f));
+            QTest::newRow("default_negativeY_lastTriangle")
+                    << 1.0f << 1.0f << 1.0f
+                    << QSize(2,2) << QSize(2,2) << QSize(2,2)
+                    << triangleIndex
+                    << indices << positions << normals << texCoords << tangents;
+        }
+
+        {
+            const int triangleIndex = 8;
+            const auto indices = (QVector<quint16>() << 16 << 17 << 18);
+            const auto positions = (QVector<QVector3D>()
+                    << QVector3D(-0.5f, -0.5f, 0.5f)
+                    << QVector3D(0.5f, -0.5f, 0.5f)
+                    << QVector3D(-0.5f, 0.5f, 0.5f));
+            const auto normals = (QVector<QVector3D>()
+                    << QVector3D(0.0f, 0.0f, 1.0f)
+                    << QVector3D(0.0f, 0.0f, 1.0f)
+                    << QVector3D(0.0f, 0.0f, 1.0f));
+            const auto texCoords = (QVector<QVector2D>()
+                    << QVector2D(0.0f, 0.0f)
+                    << QVector2D(1.0f, 0.0f)
+                    << QVector2D(0.0f, 1.0f));
+            const auto tangents = (QVector<QVector4D>()
+                    << QVector4D(1.0f, 0.0f, 0.0f, 1.0f)
+                    << QVector4D(1.0f, 0.0f, 0.0f, 1.0f)
+                    << QVector4D(1.0f, 0.0f, 0.0f, 1.0f));
+            QTest::newRow("default_positiveZ_firstTriangle")
+                    << 1.0f << 1.0f << 1.0f
+                    << QSize(2,2) << QSize(2,2) << QSize(2,2)
+                    << triangleIndex
+                    << indices << positions << normals << texCoords << tangents;
+        }
+
+        {
+            const int triangleIndex = 11;
+            const auto indices = (QVector<quint16>() << 22 << 21 << 23);
+            const auto positions = (QVector<QVector3D>()
+                    << QVector3D(0.5f, 0.5f, -0.5f)
+                    << QVector3D(-0.5f, -0.5f, -0.5f)
+                    << QVector3D(-0.5f, 0.5f, -0.5f));
+            const auto normals = (QVector<QVector3D>()
+                    << QVector3D(0.0f, 0.0f, -1.0f)
+                    << QVector3D(0.0f, 0.0f, -1.0f)
+                    << QVector3D(0.0f, 0.0f, -1.0f));
+            const auto texCoords = (QVector<QVector2D>()
+                    << QVector2D(0.0f, 1.0f)
+                    << QVector2D(1.0f, 0.0f)
+                    << QVector2D(1.0f, 1.0f));
+            const auto tangents = (QVector<QVector4D>()
+                    << QVector4D(-1.0f, 0.0f, 0.0f, 1.0f)
+                    << QVector4D(-1.0f, 0.0f, 0.0f, 1.0f)
+                    << QVector4D(-1.0f, 0.0f, 0.0f, 1.0f));
+            QTest::newRow("default_negativeZ_lastTriangle")
+                    << 1.0f << 1.0f << 1.0f
+                    << QSize(2,2) << QSize(2,2) << QSize(2,2)
+                    << triangleIndex
+                    << indices << positions << normals << texCoords << tangents;
+        }
+    }
+
+    void generatedGeometryShouldBeConsistent()
+    {
+        // GIVEN
+        Qt3DExtras::QCuboidGeometry geometry;
+        const QVector<Qt3DRender::QAttribute *> attributes = geometry.attributes();
+        Qt3DRender::QAttribute *positionAttribute = geometry.positionAttribute();
+        Qt3DRender::QAttribute *normalAttribute = geometry.normalAttribute();
+        Qt3DRender::QAttribute *texCoordAttribute = geometry.texCoordAttribute();
+        Qt3DRender::QAttribute *tangentAttribute = geometry.tangentAttribute();
+        Qt3DRender::QAttribute *indexAttribute = geometry.indexAttribute();
+
+        // WHEN
+        QFETCH(float, xExtent);
+        QFETCH(float, yExtent);
+        QFETCH(float, zExtent);
+        QFETCH(QSize, xyMeshResolution);
+        QFETCH(QSize, yzMeshResolution);
+        QFETCH(QSize, xzMeshResolution);
+        geometry.setXExtent(xExtent);
+        geometry.setYExtent(yExtent);
+        geometry.setZExtent(zExtent);
+        geometry.setXYMeshResolution(xyMeshResolution);
+        geometry.setYZMeshResolution(yzMeshResolution);
+        geometry.setXZMeshResolution(xzMeshResolution);
+
+        generateGeometry(geometry);
+
+        // THEN
+
+        // Check buffer of each attribute is valid and actually has some data
+        for (const auto &attribute : attributes) {
+            Qt3DRender::QBuffer *buffer = attribute->buffer();
+            QVERIFY(buffer != nullptr);
+            QVERIFY(buffer->data().size() != 0);
+        }
+
+        // Check some data in the buffers
+
+        // Check specific indices and vertex attributes of triangle under test
+        QFETCH(int, triangleIndex);
+        QFETCH(QVector<quint16>, indices);
+        QFETCH(QVector<QVector3D>, positions);
+        QFETCH(QVector<QVector3D>, normals);
+        QFETCH(QVector<QVector2D>, texCoords);
+        QFETCH(QVector<QVector4D>, tangents);
+
+        int i = 0;
+        for (auto index : indices) {
+            const auto testIndex = extractIndexData<quint16>(indexAttribute, 3 * triangleIndex + i);
+            QCOMPARE(testIndex, indices.at(i));
+
+            const auto position = extractVertexData<QVector3D, quint32>(positionAttribute, index);
+            QCOMPARE(position, positions.at(i));
+
+            const auto normal = extractVertexData<QVector3D, quint32>(normalAttribute, index);
+            QCOMPARE(normal, normals.at(i));
+
+            const auto texCoord = extractVertexData<QVector2D, quint32>(texCoordAttribute, index);
+            QCOMPARE(texCoord, texCoords.at(i));
+
+            const auto tangent = extractVertexData<QVector4D, quint32>(tangentAttribute, index);
+            QCOMPARE(tangent, tangents.at(i));
+
+            ++i;
+        }
+    }
+};
+
+
+QTEST_APPLESS_MAIN(tst_QCuboidGeometry)
+
+#include "tst_qcuboidgeometry.moc"