Add a spline to the degenerate-pen test case

This was triggering an infinite loop (with 24.8 fixed-point) just before
the previous fix.

NOTE: I usually put bug demonstrations just before the fixes, but this
one was quite harsh---not only was cairo looping infinitely, but it
was appending to an array on each iteration---so not kind at all.

1 files changed, 3 insertions, 0 deletions

diff --git a/test/degenerate-pen.c b/test/degenerate-pen.c
index c92a6893e..858949f50 100644
--- a/test/degenerate-pen.c
+++ b/test/degenerate-pen.c
@@ -66,6 +66,7 @@ draw (cairo_t *cr, int width, int height)
 
     /* First compress the pen to a vertical line. */
     cairo_rectangle (cr, 0, 0, SIZE, SIZE);
+    cairo_curve_to (cr, SIZE / 2, 0, SIZE, SIZE / 2, SIZE, SIZE);
     cairo_save (cr);
     {
 	cairo_scale (cr, 0.000001, 1.0);
@@ -77,6 +78,7 @@ draw (cairo_t *cr, int width, int height)
 
     /* Then compress the pen to a horizontal line. */
     cairo_rectangle (cr, 0, 0, SIZE, SIZE);
+    cairo_curve_to (cr, SIZE / 2, 0, SIZE, SIZE / 2, SIZE, SIZE);
     cairo_save (cr);
     {
 	cairo_scale (cr, 1.0, 0.000001);
@@ -88,6 +90,7 @@ draw (cairo_t *cr, int width, int height)
 
     /* Finally a line at an angle. */
     cairo_rectangle (cr, 0, 0, SIZE, SIZE);
+    cairo_curve_to (cr, SIZE / 2, 0, SIZE, SIZE / 2, SIZE, SIZE);
     cairo_save (cr);
     {
 	cairo_rotate (cr, M_PI / 4.0);