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diff --git a/test/a1-mask-sample.c b/test/a1-mask-sample.c
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+/*
+ * Copyright © 2008 Red Hat, Inc.
+ * Copyright © 2010 Intel Corporation
+ *
+ * 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: Carl D. Worth <cworth@cworth.org>
+ * Chris Wilson <chris@chris-wilson.co.uk>
+ */
+
+#include "cairo-test.h"
+
+#define POINTS 10
+#define STEP (1.0 / POINTS)
+#define PAD 1
+#define WIDTH (PAD + POINTS * 2 + PAD)
+#define HEIGHT (WIDTH)
+
+/* A single, opaque pixel */
+static const uint32_t black_pixel = 0xffffffff;
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+ cairo_surface_t *surface;
+ cairo_pattern_t *mask;
+ int i, j;
+
+ surface = cairo_image_surface_create_for_data ((unsigned char *) &black_pixel,
+ CAIRO_FORMAT_A8,
+ 1, 1, 4);
+ mask = cairo_pattern_create_for_surface (surface);
+ cairo_pattern_set_filter (mask, CAIRO_FILTER_NEAREST);
+ cairo_surface_destroy (surface);
+
+ /* Fill background white */
+ cairo_set_source_rgb (cr, 1, 1, 1);
+ cairo_paint (cr);
+
+ cairo_translate (cr, PAD, PAD);
+
+ cairo_set_source_rgb (cr, 0, 0, 0);
+ for (i = 0; i < POINTS; i++) {
+ for (j = 0; j < POINTS; j++) {
+ cairo_matrix_t m;
+
+ cairo_matrix_init_translate (&m,
+ -(2 * i + i * STEP),
+ -(2 * j + j * STEP));
+ cairo_pattern_set_matrix (mask, &m);
+ cairo_mask (cr, mask);
+ }
+ }
+
+ cairo_pattern_destroy (mask);
+
+ return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (a1_mask_sample,
+ "Test sample position when masking with FILTER_NEAREST",
+ "image, alpha", /* keywords */
+ "target=raster", /* requirements */
+ WIDTH, HEIGHT,
+ NULL, draw)