/usr/share/doc/libjs-excanvas/examples/testcases/ is in libjs-excanvas 0.r3-4.
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/usr/share/doc/libjs-excanvas/examples/testcases/arc.html
/usr/share/doc/libjs-excanvas/examples/testcases/clearpath.html
/usr/share/doc/libjs-excanvas/examples/testcases/drawimage.html
/usr/share/doc/libjs-excanvas/examples/testcases/gradient.html
/usr/share/doc/libjs-excanvas/examples/testcases/gradient2.html
/usr/share/doc/libjs-excanvas/examples/testcases/linewidth.html
/usr/share/doc/libjs-excanvas/examples/testcases/overflow.html
/usr/share/doc/libjs-excanvas/examples/testcases/quadraticcurve.html
/usr/share/doc/libjs-excanvas/examples/testcases/resizing.html
/usr/share/doc/libjs-excanvas/examples/testcases/saverestorepath.html
/usr/share/doc/libjs-excanvas/examples/testcases/stroke-scale-rotate.html
/usr/share/doc/libjs-excanvas/examples/testcases/stroke-should-not-close-path.html