Test more of QQuickImageParticle

Now the color variance properties are tested, as is the debug code.
Just running the debugging code is valid testing, as it contains
pointer derefernces that could cause runtime errors, and this codepath
is not always enabled at runtime.

Additionally, debug mode control has been consolidated in the
ParticleSystem. However, this was not necessary for this test addition.

Change-Id: Ie56465145461486456462154dfafe546fedabcba
Reviewed-by: Martin Jones <martin.jones@nokia.com>

2 files changed, 125 insertions, 0 deletions

diff --git a/tests/auto/particles/qquickimageparticle/data/colorVariance.qml b/tests/auto/particles/qquickimageparticle/data/colorVariance.qml
new file mode 100644
index 0000000000..d6576d3138
--- /dev/null
+++ b/tests/auto/particles/qquickimageparticle/data/colorVariance.qml
@@ -0,0 +1,72 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.0
+import QtQuick.Particles 2.0
+
+Rectangle {
+    color: "black"
+    width: 320
+    height: 320
+
+    ParticleSystem {
+        id: sys
+        objectName: "system"
+        anchors.fill: parent
+
+        ImageParticle {
+            source: "../../shared/star.png"
+            alpha: 0.5
+            color: "#000000"
+            redVariation: 0.5
+            greenVariation: 0.25
+            blueVariation: 0.125
+            alphaVariation: 0.25
+        }
+
+        Emitter{
+            //0,0 position
+            size: 32
+            emitRate: 1000
+            lifeSpan: 500
+        }
+    }
+}
diff --git a/tests/auto/particles/qquickimageparticle/tst_qquickimageparticle.cpp b/tests/auto/particles/qquickimageparticle/tst_qquickimageparticle.cpp
index b58a0b4970..f46f23767b 100644
--- a/tests/auto/particles/qquickimageparticle/tst_qquickimageparticle.cpp
+++ b/tests/auto/particles/qquickimageparticle/tst_qquickimageparticle.cpp
@@ -51,10 +51,12 @@ class tst_qquickimageparticle : public QObject
     Q_OBJECT
 public:
     tst_qquickimageparticle();
+    ~tst_qquickimageparticle();
 
 private slots:
     void test_basic();
     void test_colored();
+    void test_colorVariance();
     void test_deformed();
     void test_tabled();
     void test_sprite();
@@ -63,6 +65,12 @@ private slots:
 tst_qquickimageparticle::tst_qquickimageparticle()
 {
     QUnifiedTimer::instance()->setConsistentTiming(true);
+    setenv("QML_PARTICLES_DEBUG","please",0);//QQuickImageParticle has several debug statements, with possible pointer dereferences
+}
+
+tst_qquickimageparticle::~tst_qquickimageparticle()
+{
+    unsetenv("QML_PARTICLES_DEBUG");
 }
 
 void tst_qquickimageparticle::test_basic()
@@ -153,6 +161,51 @@ void tst_qquickimageparticle::test_colored()
 }
 
 
+void tst_qquickimageparticle::test_colorVariance()
+{
+    QQuickView* view = createView(QCoreApplication::applicationDirPath() + "/data/colorVariance.qml", 600);
+    QQuickParticleSystem* system = view->rootObject()->findChild<QQuickParticleSystem*>("system");
+    ensureAnimTime(600, system->m_animation);
+
+    QVERIFY(extremelyFuzzyCompare(system->groupData[0]->size(), 500, 10));
+    foreach (QQuickParticleData *d, system->groupData[0]->data) {
+        if (d->t == -1)
+            continue; //Particle data unused
+
+        QCOMPARE(d->x, 0.f);
+        QCOMPARE(d->y, 0.f);
+        QCOMPARE(d->vx, 0.f);
+        QCOMPARE(d->vy, 0.f);
+        QCOMPARE(d->ax, 0.f);
+        QCOMPARE(d->ay, 0.f);
+        QCOMPARE(d->lifeSpan, 0.5f);
+        QCOMPARE(d->size, 32.f);
+        QCOMPARE(d->endSize, 32.f);
+        QVERIFY(myFuzzyLEQ(d->t, ((qreal)system->timeInt/1000.0)));
+        QVERIFY(d->color.r < 128);
+        QVERIFY(d->color.g < 64);
+        QVERIFY(d->color.b < 32);
+        QVERIFY(d->color.a >= 64);
+        QVERIFY(d->color.a < 192);
+        QCOMPARE(d->xx, 1.0f);
+        QCOMPARE(d->xy, 0.0f);
+        QCOMPARE(d->yy, 1.0f);
+        QCOMPARE(d->yx, 0.0f);
+        QCOMPARE(d->rotation, 0.0f);
+        QCOMPARE(d->rotationSpeed, 0.0f);
+        QCOMPARE(d->autoRotate, 0.0f);
+        QCOMPARE(d->animX, 0.0f);
+        QCOMPARE(d->animY, 0.0f);
+        QCOMPARE(d->animWidth, 1.0f);
+        QCOMPARE(d->animHeight, 1.0f);
+        QCOMPARE(d->frameDuration, 1.0f);
+        QCOMPARE(d->frameCount, 1.0f);
+        QCOMPARE(d->animT, -1.0f);
+    }
+    delete view;
+}
+
+
 void tst_qquickimageparticle::test_deformed()
 {
     QQuickView* view = createView(QCoreApplication::applicationDirPath() + "/data/deformed.qml", 600);