[test/in-fill-trapezoid] Add test to exercise _cairo_trap_contains().

A simple test to provide coverage of _cairo_trap_contains(), though
not yet seeking boundary conditions.

test/.gitignore

@@ -71,6 +71,7 @@ gradient-zero-stops
 imagediff
 infinite-join
 in-fill-empty-trapezoid
+in-fill-trapezoid
 invalid-matrix
 leaky-dash
 leaky-polygon

test/Makefile.am

@@ -54,6 +54,7 @@ gradient-alpha$(EXEEXT)					\
 gradient-zero-stops$(EXEEXT)				\
 infinite-join$(EXEEXT)					\
 in-fill-empty-trapezoid$(EXEEXT)			\
+in-fill-trapezoid$(EXEEXT)			\
 invalid-matrix$(EXEEXT)					\
 leaky-dash$(EXEEXT)					\
 leaky-polygon$(EXEEXT)					\

test/in-fill-trapezoid.c

@@ -0,0 +1,66 @@
+/*
+ * Copyright © 2008 Chris Wilson
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Author: Chris Wilson <chris@chris-wilson.co.uk>
+ */
+
+#include "cairo-test.h"
+
+static cairo_test_draw_function_t draw;
+
+cairo_test_t test = {
+    "in-fill-trapezoid",
+    "Test _cairo_trap_contains via cairo_in_fill",
+    0, 0,
+    draw
+};
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+    cairo_test_status_t ret = CAIRO_TEST_SUCCESS;
+
+    /* simple rectangle */
+    cairo_new_path (cr);
+    cairo_rectangle (cr, -10, -10, 20, 20);
+    if (! cairo_in_fill (cr, 0, 0)) {
+	cairo_test_log ("Error: Failed to find point inside rectangle\n");
+	ret = CAIRO_TEST_FAILURE;
+    }
+
+    /* simple circle */
+    cairo_new_path (cr);
+    cairo_arc (cr, 0, 0, 10, 0, 2 * M_PI);
+    if (! cairo_in_fill (cr, 0, 0)) {
+	cairo_test_log ("Error: Failed to find point inside circle\n");
+	ret = CAIRO_TEST_FAILURE;
+    }
+
+    return ret;
+}
+
+int
+main (void)
+{
+    return cairo_test (&test);
+}