From f02227ebdc75284b7171b4f2579239679d5836d5 Mon Sep 17 00:00:00 2001
From: Yuya Nishihara <yuya.nishihara@qt.io>
Date: Fri, 16 Jul 2021 11:50:06 +0900
Subject: Add tests of matrix4x4 transformation functions

These functions have been added at ded64d0368 "Make the qml/js matrix4x4
type more useful." Let's add some tests as I want to add another overload
of rotate() function.

Change-Id: I12e5970b8e3a6709e9f794c9713feb277cc8c449
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
(cherry picked from commit b4866c499a6b2d1f42b77f08287988b01118c9f6)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 .../qqmlvaluetypes/data/matrix4x4_invokables.qml   | 54 ++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/tests/auto/qml/qqmlvaluetypes/data/matrix4x4_invokables.qml b/tests/auto/qml/qqmlvaluetypes/data/matrix4x4_invokables.qml
index aa26956922..09f1d472b7 100644
--- a/tests/auto/qml/qqmlvaluetypes/data/matrix4x4_invokables.qml
+++ b/tests/auto/qml/qqmlvaluetypes/data/matrix4x4_invokables.qml
@@ -10,6 +10,59 @@ Item {
     property variant v2: Qt.vector3d(1,2,3)
     property real factor: 2.23
 
+    function testTransformation() {
+        let m = Qt.matrix4x4();
+
+        m.scale(1, 2, 4);
+        if (m !== Qt.matrix4x4(1, 0, 0, 0,
+                               0, 2, 0, 0,
+                               0, 0, 4, 0,
+                               0, 0, 0, 1))
+            return false;
+        m.scale(Qt.vector3d(-8, -4, -2));
+        if (m !== Qt.matrix4x4(-8, 0, 0, 0,
+                               0,-8, 0, 0,
+                               0, 0, -8, 0,
+                               0, 0, 0, 1))
+            return false;
+        m.scale(-1 / 8);
+        if (m !== Qt.matrix4x4())
+            return false;
+
+        m.rotate(180, Qt.vector3d(1, 0, 0));
+        if (m !== Qt.matrix4x4(1, 0, 0, 0,
+                               0, -1, 0, 0,
+                               0, 0, -1, 0,
+                               0, 0, 0, 1))
+            return false;
+        m.rotate(180, Qt.vector3d(0, 1, 0));
+        if (m !== Qt.matrix4x4(-1, 0, 0, 0,
+                               0, -1, 0, 0,
+                               0, 0, 1, 0,
+                               0, 0, 0, 1))
+            return false;
+        m.rotate(180, Qt.vector3d(0, 0, 1));
+        if (m !== Qt.matrix4x4())
+            return false;
+
+        m.translate(Qt.vector3d(1, 2, 4));
+        if (m !== Qt.matrix4x4(1, 0, 0, 1,
+                               0, 1, 0, 2,
+                               0, 0, 1, 4,
+                               0, 0, 0, 1))
+            return false;
+
+        m = Qt.matrix4x4();
+        m.lookAt(Qt.vector3d(1, 2, 4), Qt.vector3d(1, 2, 0), Qt.vector3d(0, 1, 0));
+        if (m !== Qt.matrix4x4(1, 0, 0, -1,
+                               0, 1, 0, -2,
+                               0, 0, 1, -4,
+                               0, 0, 0, 1))
+            return false;
+
+        return true;
+    }
+
     Component.onCompleted: {
         success = true;
         if (m1.times(m2) != Qt.matrix4x4(26, 26, 26, 26, 52, 52, 52, 52, 78, 78, 78, 78, 104, 104, 104, 104)) success = false;
@@ -27,5 +80,6 @@ Item {
         if (m1.transposed() != Qt.matrix4x4(1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4)) success = false;
         if (m1.fuzzyEquals(m2)) success = false;
         if (!m1.fuzzyEquals(m2, 10)) success = false;
+        if (!testTransformation()) success = false;
     }
 }
-- 
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