[aravis] tests: add a test for entities in formula expression.

[Emmanuel Pacaud <emmanuel src gnome org>]

commit 53d64f1eb3e857541161d575c174f59bc13a5048
Author: Emmanuel Pacaud <emmanuel gnome org>
Date:   Sun Jun 3 18:43:23 2012 +0200

    tests: add a test for entities in formula expression.

 tests/data/genicam.xml |    6 +++++-
 tests/genicam.c        |    6 ++++++
 2 files changed, 11 insertions(+), 1 deletions(-)
---
diff --git a/tests/data/genicam.xml b/tests/data/genicam.xml
index 5b35e04..c838c46 100644
--- a/tests/data/genicam.xml
+++ b/tests/data/genicam.xml
@@ -148,10 +148,14 @@
 		<Endianess>BigEndian</Endianess>
 	</IntReg>
 
-	<IntSwissKnife Name="IntSwissKnifeTest">
+	<IntSwissKnife Name="IntSwissKnifeTestEntity">
 		<Formula>0x1234</Formula>
 	</IntSwissKnife>
 
+	<IntSwissKnife Name="IntSwissKnifeTest">
+		<Formula>(0x12340000 &amp;&amp; 0x00005678)</Formula>
+	</IntSwissKnife>
+
 	<Integer Name="TLParamsLocked">
 		<ToolTip> Indicates whether a live grab is under way</ToolTip>
 		<Visibility>Invisible</Visibility>
diff --git a/tests/genicam.c b/tests/genicam.c
index 122698f..988692c 100644
--- a/tests/genicam.c
+++ b/tests/genicam.c
@@ -211,6 +211,12 @@ swiss_knife_test (void)
 	value = arv_gc_integer_get_value (ARV_GC_INTEGER (node), NULL);
 	g_assert_cmpint (value, ==, 0x1234);
 
+	node = arv_gc_get_node (genicam, "IntSwissKnifeTestEntity");
+	g_assert (ARV_IS_GC_SWISS_KNIFE (node));
+
+	value = arv_gc_integer_get_value (ARV_GC_INTEGER (node), NULL);
+	g_assert_cmpint (value, ==, 0x12345678);
+
 	g_object_unref (device);
 }