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>

1 files changed, 53 insertions, 0 deletions

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);