[gtk+] Add some tests for radial gradient parsing

[Matthias Clasen <matthiasc src gnome org>]

commit fcea12f790ad20ab79f24abf46faa7993fbd49c7
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Dec 27 02:04:20 2015 -0500

    Add some tests for radial gradient parsing
    
    These are the examples from the CSS spec.

 testsuite/css/parser/Makefile.am    |    2 +
 testsuite/css/parser/radial.css     |   39 +++++++++++++++++++++++++++++++++++
 testsuite/css/parser/radial.ref.css |   39 +++++++++++++++++++++++++++++++++++
 3 files changed, 80 insertions(+), 0 deletions(-)
---
diff --git a/testsuite/css/parser/Makefile.am b/testsuite/css/parser/Makefile.am
index 3c7106d..4479ddd 100644
--- a/testsuite/css/parser/Makefile.am
+++ b/testsuite/css/parser/Makefile.am
@@ -405,6 +405,8 @@ test_data = \
        pseudo-classes-unknown.css \
        pseudo-classes-unknown.errors \
        pseudo-classes-unknown.ref.css \
+        radial.css \
+        radial.ref.css \
        selector.css \
        selector.ref.css \
        shadow.css \
diff --git a/testsuite/css/parser/radial.css b/testsuite/css/parser/radial.css
new file mode 100644
index 0000000..1634363
--- /dev/null
+++ b/testsuite/css/parser/radial.css
@@ -0,0 +1,39 @@
+a {
+  background-image: radial-gradient(yellow, green);
+}
+
+b {
+  background-image: radial-gradient(ellipse at center, yellow 0%, green 100%);
+}
+
+c {
+  background-image: radial-gradient(farthest-corner at 50% 50%, yellow, green);
+}
+
+d {
+  background-image: radial-gradient(circle, yellow, green);
+}
+
+e {
+  background-image: radial-gradient(red, yellow, green);
+}
+
+f {
+  background-image: radial-gradient(farthest-side at left bottom, red, yellow 50px, green);
+}
+
+g {
+  background-image: radial-gradient(closest-side at 20px 30px, red, yellow, green);
+}
+
+h {
+  background-image: radial-gradient(20px 30px at 20px 30px, red, yellow, green);
+}
+
+i {
+  background-image: radial-gradient(closest-side circle at 20px 30px, red, yellow, green);
+}
+
+j {
+  background-image: radial-gradient(20px 20px at 20px 30px, red, yellow, green);
+}
diff --git a/testsuite/css/parser/radial.ref.css b/testsuite/css/parser/radial.ref.css
new file mode 100644
index 0000000..00dcab6
--- /dev/null
+++ b/testsuite/css/parser/radial.ref.css
@@ -0,0 +1,39 @@
+a {
+  background-image: radial-gradient(circle farthest-corner at center, rgb(255,255,0), rgb(0,128,0));
+}
+
+b {
+  background-image: radial-gradient(ellipse farthest-corner at center, rgb(255,255,0) 0, rgb(0,128,0) 100%);
+}
+
+c {
+  background-image: radial-gradient(circle farthest-corner at center, rgb(255,255,0), rgb(0,128,0));
+}
+
+d {
+  background-image: radial-gradient(circle farthest-corner at center, rgb(255,255,0), rgb(0,128,0));
+}
+
+e {
+  background-image: radial-gradient(circle farthest-corner at center, rgb(255,0,0), rgb(255,255,0), 
rgb(0,128,0));
+}
+
+f {
+  background-image: radial-gradient(circle farthest-side at left bottom, rgb(255,0,0), rgb(255,255,0) 50px, 
rgb(0,128,0));
+}
+
+g {
+  background-image: radial-gradient(circle closest-side at 20px 30px, rgb(255,0,0), rgb(255,255,0), 
rgb(0,128,0));
+}
+
+h {
+  background-image: radial-gradient(ellipse 20px 30px at 20px 30px, rgb(255,0,0), rgb(255,255,0), 
rgb(0,128,0));
+}
+
+i {
+  background-image: radial-gradient(circle closest-side at 20px 30px, rgb(255,0,0), rgb(255,255,0), 
rgb(0,128,0));
+}
+
+j {
+  background-image: radial-gradient(ellipse 20px 20px at 20px 30px, rgb(255,0,0), rgb(255,255,0), 
rgb(0,128,0));
+}