[gtk+] reftests: Add a reftest for recent commit

[Benjamin Otte <otte src gnome org>]

commit a68e76e05839a1934921e481426dd250ae0b392e
Author: Benjamin Otte <otte redhat com>
Date:   Fri Oct 26 23:38:19 2012 +0200

    reftests: Add a reftest for recent commit
    
    Check that a computed background-size of 0 is treated as 0.

 tests/reftests/Makefile.am                 |    3 +++
 tests/reftests/background-size-zero.css    |   11 +++++++++++
 tests/reftests/background-size-zero.ref.ui |   12 ++++++++++++
 tests/reftests/background-size-zero.ui     |   11 +++++++++++
 4 files changed, 37 insertions(+), 0 deletions(-)
---
diff --git a/tests/reftests/Makefile.am b/tests/reftests/Makefile.am
index b0e7dfb..cbbc998 100644
--- a/tests/reftests/Makefile.am
+++ b/tests/reftests/Makefile.am
@@ -56,6 +56,9 @@ EXTRA_DIST += \
 	background-size-keywords.css \
 	background-size-keywords.ref.ui \
 	background-size-keywords.ui \
+	background-size-zero.css \
+	background-size-zero.ref.ui \
+	background-size-zero.ui \
 	background-window-transparent.css \
 	background-window-transparent.ref.ui \
 	background-window-transparent.ui \
diff --git a/tests/reftests/background-size-zero.css b/tests/reftests/background-size-zero.css
new file mode 100644
index 0000000..a94bc82
--- /dev/null
+++ b/tests/reftests/background-size-zero.css
@@ -0,0 +1,11 @@
+ import "reset-to-defaults.css";
+
+.background {
+  background-image: linear-gradient(to right, blue);
+  background-size: 0%;
+}
+
+#reference {
+  background-image: initial;
+  background-size: initial;
+}
diff --git a/tests/reftests/background-size-zero.ref.ui b/tests/reftests/background-size-zero.ref.ui
new file mode 100644
index 0000000..9d475c3
--- /dev/null
+++ b/tests/reftests/background-size-zero.ref.ui
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <!-- interface-requires gtk+ 3.0 -->
+  <object class="GtkWindow" id="window1">
+    <property name="can_focus">False</property>
+    <property name="type">popup</property>
+    <property name="name">reference</property>
+    <child>
+      <placeholder/>
+    </child>
+  </object>
+</interface>
diff --git a/tests/reftests/background-size-zero.ui b/tests/reftests/background-size-zero.ui
new file mode 100644
index 0000000..51595c7
--- /dev/null
+++ b/tests/reftests/background-size-zero.ui
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <!-- interface-requires gtk+ 3.0 -->
+  <object class="GtkWindow" id="window1">
+    <property name="can_focus">False</property>
+    <property name="type">popup</property>
+    <child>
+      <placeholder/>
+    </child>
+  </object>
+</interface>