testsuite: Update create_random_path()
1. Allow specifying the max number of contours 2. Be smarter about creating the paths: With 10% chance, create a "weird" path like the empty one or only points or things like that. Otherwise create a bunch of contours, with 2/3 a standard contour, with 1/3 a predetermined one.
This commit is contained in:
Benjamin Otte
@@ -20,41 +20,188 @@
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#include <gtk/gtk.h>
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static GskPath *
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create_random_path (void)
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create_random_degenerate_path (guint max_contours)
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{
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#define N_DEGENERATE_PATHS 12
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GskPathBuilder *builder;
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guint i, n;
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guint i;
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builder = gsk_path_builder_new ();
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n = g_test_rand_int_range (0, 20);
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for (i = 0; i < n; i++)
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{
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switch (g_test_rand_int_range (0, 11))
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{
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case 0:
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gsk_path_builder_move_to (builder,
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switch (g_test_rand_int_range (0, N_DEGENERATE_PATHS))
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{
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case 0:
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/* empty path */
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break;
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case 1:
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/* a single point */
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gsk_path_builder_move_to (builder,
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g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000));
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break;
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case 2:
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/* N points */
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for (i = 0; i < MIN (10, max_contours); i++)
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{
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gsk_path_builder_move_to (builder,
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g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000));
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break;
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}
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break;
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case 1:
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case 3:
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/* 1 closed point */
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gsk_path_builder_move_to (builder,
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g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000));
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gsk_path_builder_close (builder);
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break;
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case 4:
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/* the same point closed N times */
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gsk_path_builder_move_to (builder,
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g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000));
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for (i = 0; i < MIN (10, max_contours); i++)
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{
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gsk_path_builder_close (builder);
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break;
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}
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break;
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case 2:
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case 3:
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case 4:
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case 5:
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case 5:
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/* a zero-width and zero-height rect */
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gsk_path_builder_add_rect (builder,
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&GRAPHENE_RECT_INIT (g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000),
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0, 0));
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break;
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case 6:
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/* a zero-width rect */
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gsk_path_builder_add_rect (builder,
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&GRAPHENE_RECT_INIT (g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000),
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0,
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g_test_rand_double_range (-1000, 1000)));
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break;
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case 7:
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/* a zero-height rect */
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gsk_path_builder_add_rect (builder,
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&GRAPHENE_RECT_INIT (g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000),
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0));
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break;
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case 8:
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/* a negative-size rect */
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gsk_path_builder_add_rect (builder,
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&GRAPHENE_RECT_INIT (g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 0),
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g_test_rand_double_range (-1000, 0)));
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break;
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case 9:
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/* an absolutely random rect */
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gsk_path_builder_add_rect (builder,
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&GRAPHENE_RECT_INIT (g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000)));
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break;
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case 10:
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/* an absolutely random rect */
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gsk_path_builder_add_rect (builder,
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&GRAPHENE_RECT_INIT (g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000)));
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break;
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case 11:
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/* an absolutely random circle */
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gsk_path_builder_add_circle (builder,
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&GRAPHENE_POINT_INIT (g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000)),
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g_test_rand_double_range (1, 1000));
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break;
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case N_DEGENERATE_PATHS:
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default:
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g_assert_not_reached ();
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}
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return gsk_path_builder_free_to_path (builder);
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}
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static GskPath *
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create_random_path (guint max_contours);
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static void
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add_shape_contour (GskPathBuilder *builder)
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{
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#define N_SHAPE_CONTOURS 3
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switch (g_test_rand_int_range (0, N_SHAPE_CONTOURS))
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{
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case 0:
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gsk_path_builder_add_rect (builder,
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&GRAPHENE_RECT_INIT (g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (1, 1000),
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g_test_rand_double_range (1, 1000)));
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break;
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case 1:
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gsk_path_builder_add_circle (builder,
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&GRAPHENE_POINT_INIT (g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000)),
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g_test_rand_double_range (1, 1000));
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break;
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case 2:
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{
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GskPath *path = create_random_path (1);
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gsk_path_builder_add_path (builder, path);
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gsk_path_unref (path);
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}
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break;
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case N_SHAPE_CONTOURS:
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default:
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g_assert_not_reached ();
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break;
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}
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}
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static void
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add_standard_contour (GskPathBuilder *builder)
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{
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guint i, n;
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if (g_test_rand_bit ())
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gsk_path_builder_move_to (builder,
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g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000));
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/* that 20 is random, but should be enough to get some
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* crazy self-intersecting shapes */
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n = g_test_rand_int_range (1, 20);
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for (i = 0; i < n; i++)
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{
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switch (g_test_rand_int_range (0, 2))
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{
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case 0:
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gsk_path_builder_line_to (builder,
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g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000));
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break;
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case 6:
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case 7:
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case 8:
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case 9:
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case 1:
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gsk_path_builder_curve_to (builder,
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g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000),
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@@ -64,20 +211,39 @@ create_random_path (void)
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g_test_rand_double_range (-1000, 1000));
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break;
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case 10:
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gsk_path_builder_add_rect (builder,
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&GRAPHENE_RECT_INIT (g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000),
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g_test_rand_double_range (-1000, 1000)));
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break;
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default:
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g_assert_not_reached();
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break;
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}
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}
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if (g_test_rand_bit ())
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gsk_path_builder_close (builder);
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}
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static GskPath *
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create_random_path (guint max_contours)
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{
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GskPathBuilder *builder;
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guint i, n;
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/* 5% chance for a weird shape */
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if (g_test_rand_int_range (0, 20))
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return create_random_degenerate_path (max_contours);
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builder = gsk_path_builder_new ();
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n = g_test_rand_int_range (1, 10);
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n = MIN (n, max_contours);
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for (i = 0; i < n; i++)
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{
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/* 2/3 of shapes are standard contours */
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if (g_test_rand_int_range (0, 3))
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add_standard_contour (builder);
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else
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add_shape_contour (builder);
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}
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return gsk_path_builder_free_to_path (builder);
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}
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@@ -93,9 +259,9 @@ test_create (void)
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for (i = 0; i < 1000; i++)
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{
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builder = gsk_path_builder_new ();
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path1 = create_random_path ();
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path1 = create_random_path (G_MAXUINT);
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gsk_path_builder_add_path (builder, path1);
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path2 = create_random_path ();
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path2 = create_random_path (G_MAXUINT);
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gsk_path_builder_add_path (builder, path2);
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built = gsk_path_builder_free_to_path (builder);
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@@ -126,7 +292,7 @@ test_segment_start (void)
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float epsilon, length;
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guint i;
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path = create_random_path ();
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path = create_random_path (G_MAXUINT);
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measure = gsk_path_measure_new (path);
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length = gsk_path_measure_get_length (measure);
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epsilon = MAX (length / 1024, G_MINFLOAT);
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@@ -159,7 +325,7 @@ test_segment_end (void)
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float epsilon, length;
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guint i;
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path = create_random_path ();
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path = create_random_path (G_MAXUINT);
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measure = gsk_path_measure_new (path);
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length = gsk_path_measure_get_length (measure);
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epsilon = MAX (length / 1024, G_MINFLOAT);
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@@ -192,7 +358,7 @@ test_segment_chunk (void)
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float epsilon, length;
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guint i;
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path = create_random_path ();
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path = create_random_path (G_MAXUINT);
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measure = gsk_path_measure_new (path);
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length = gsk_path_measure_get_length (measure);
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epsilon = MAX (length / 1024, G_MINFLOAT);
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@@ -227,7 +393,7 @@ test_segment (void)
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for (i = 0; i < 1000; i++)
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{
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path = create_random_path ();
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path = create_random_path (G_MAXUINT);
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measure = gsk_path_measure_new (path);
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length = gsk_path_measure_get_length (measure);
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/* chosen high enough to stop the testsuite from failing */
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@@ -275,9 +441,9 @@ test_closest_point (void)
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for (i = 0; i < 10; i++)
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{
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path1 = create_random_path ();
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path1 = create_random_path (G_MAXUINT);
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measure1 = gsk_path_measure_new_with_tolerance (path1, tolerance);
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path2 = create_random_path ();
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path2 = create_random_path (G_MAXUINT);
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measure2 = gsk_path_measure_new_with_tolerance (path2, tolerance);
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builder = gsk_path_builder_new ();
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