Test svgload in make check and on Travis CI

.travis.yml

@@ -8,6 +8,7 @@ before_install:
   - sudo apt-get install swig libmagick++-dev bc 
   - sudo apt-get install libcfitsio3-dev libgsl0-dev libmatio-dev
   - sudo apt-get install liborc-0.4-dev liblcms2-dev libpoppler-glib-dev
+  - sudo apt-get install librsvg2-dev
 before_script:
   - ./bootstrap.sh
   - ./configure 

test/images/blankpage.svg

@@ -0,0 +1,3 @@
+<svg version="1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 595 842">
+	<path stroke="#fff" fill="#fff" d="M0 0h595v842H0z"/>
+</svg>

test/test_formats.sh

@@ -11,6 +11,10 @@
 poppler=$test_images/blankpage.pdf
 poppler_ref=$test_images/blankpage.png
 
+# rsvg / svgload reference image
+rsvg=$test_images/blankpage.svg
+rsvg_ref=$test_images/blankpage.png
+
 # the matlab image and reference image
 matlab=$test_images/sample.mat
 matlab_ref=$test_images/sample.png
@@ -222,6 +226,10 @@ if test_supported pdfload; then
 	test_loader $poppler_ref $poppler pdfload
 fi
 
+if test_supported svgload; then
+	test_loader $rsvg_ref $rsvg svgload
+fi
+
 if test_supported matload; then
 	test_loader $matlab_ref $matlab matlab
 fi