test_ptarray_append_ptarray()

static void test_ptarray_append_ptarray ( void  )

static

Definition at line 104 of file cu_ptarray.c.

References ASSERT_STRING_EQUAL, POINTARRAY::flags, FLAGS_SET_READONLY, LW_FAILURE, LW_SUCCESS, lwfree(), lwgeom_as_lwline(), lwgeom_from_text(), lwgeom_to_text(), lwline_as_lwgeom(), lwline_free(), LWLINE::points, and ptarray_append_ptarray().

Referenced by ptarray_suite_setup().

{
        LWLINE *line1, *line2;
        int ret;
        char *wkt;

        /* Empty first line */
        line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING EMPTY"));
        line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(0 0,0 10,5 5)"));
        ret = ptarray_append_ptarray(line1->points, line2->points, -1);
        CU_ASSERT(ret == LW_SUCCESS);
        wkt = lwgeom_to_text(lwline_as_lwgeom(line1));
        ASSERT_STRING_EQUAL(wkt, "LINESTRING(0 0,0 10,5 5)");
        lwfree(wkt);
        lwline_free(line2);
        lwline_free(line1);

        /* Empty second line */
        line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(0 0, 5 5, 6 3)"));
        line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING EMPTY"));
        ret = ptarray_append_ptarray(line1->points, line2->points, -1);
        CU_ASSERT(ret == LW_SUCCESS);
        wkt = lwgeom_to_text(lwline_as_lwgeom(line1));
        ASSERT_STRING_EQUAL(wkt, "LINESTRING(0 0,5 5,6 3)");
        lwfree(wkt);
        lwline_free(line2);
        lwline_free(line1);

        /* Both lines empty */
        line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING EMPTY"));
        line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING EMPTY"));
        ret = ptarray_append_ptarray(line1->points, line2->points, -1);
        CU_ASSERT(ret == LW_SUCCESS);
        wkt = lwgeom_to_text(lwline_as_lwgeom(line1));
        ASSERT_STRING_EQUAL(wkt, "LINESTRING EMPTY");
        lwfree(wkt);
        lwline_free(line2);
        lwline_free(line1);

        /* Sane sewing */
        line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(10 4, 0 0,5 7)"));
        line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(5 7,12 43, 42 15)"));
        ret = ptarray_append_ptarray(line1->points, line2->points, 0);
        CU_ASSERT(ret == LW_SUCCESS);
        wkt = lwgeom_to_text(lwline_as_lwgeom(line1));
        ASSERT_STRING_EQUAL(wkt, "LINESTRING(10 4,0 0,5 7,12 43,42 15)");
        lwfree(wkt);
        lwline_free(line2);
        lwline_free(line1);

        /* Untolerated sewing */
        line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(10 4, 0 0,5 7)"));
        line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(5.5 7,12 43, 42 15)"));
        ret = ptarray_append_ptarray(line1->points, line2->points, 0);
        CU_ASSERT(ret == LW_FAILURE);
        lwline_free(line2);
        lwline_free(line1);

        /* Tolerated sewing */
        line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(10 4, 0 0,5 7)"));
        line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(5.5 7,12 43, 42 15)"));
        ret = ptarray_append_ptarray(line1->points, line2->points, .7);
        CU_ASSERT(ret == LW_SUCCESS);
        wkt = lwgeom_to_text(lwline_as_lwgeom(line1));
        ASSERT_STRING_EQUAL(wkt, "LINESTRING(10 4,0 0,5 7,5.5 7,12 43,42 15)");
        lwfree(wkt);
        lwline_free(line2);
        lwline_free(line1);

        /* Check user input trust (creates non-simple line */
        line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(0 0,0 10)"));
        line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(0 0,0 10)"));
        ret = ptarray_append_ptarray(line1->points, line2->points, -1);
        CU_ASSERT(ret == LW_SUCCESS);
        wkt = lwgeom_to_text(lwline_as_lwgeom(line1));
        ASSERT_STRING_EQUAL(wkt, "LINESTRING(0 0,0 10,0 0,0 10)");
        lwfree(wkt);
        lwline_free(line2);
        lwline_free(line1);

        /* Mixed dimensionality is not allowed */
        line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(0 10 0, 10 0 0)"));
        line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(10 0,11 0)"));
        ret = ptarray_append_ptarray(line1->points, line2->points, -1);
        CU_ASSERT(ret == LW_FAILURE);
        lwline_free(line2);
        lwline_free(line1);

        /* Appending a read-only pointarray is allowed */
        line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(0 10, 10 0)"));
        line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(10 0,11 0)"));
        FLAGS_SET_READONLY(line2->points->flags, 1);
        ret = ptarray_append_ptarray(line1->points, line2->points, -1);
        CU_ASSERT(ret == LW_SUCCESS);
        wkt = lwgeom_to_text(lwline_as_lwgeom(line1));
        ASSERT_STRING_EQUAL(wkt, "LINESTRING(0 10,10 0,11 0)");
        lwfree(wkt);
        FLAGS_SET_READONLY(line2->points->flags, 0); /* for lwline_free */
        lwline_free(line2);
        lwline_free(line1);

        /* Appending to a read-only pointarray is forbidden */
        line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(0 10, 10 0)"));
        line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(10 0,11 0)"));
        FLAGS_SET_READONLY(line1->points->flags, 1);
        ret = ptarray_append_ptarray(line1->points, line2->points, -1);
        CU_ASSERT(ret == LW_FAILURE);
        lwline_free(line2);
        FLAGS_SET_READONLY(line1->points->flags, 0); /* for lwline_free */
        lwline_free(line1);

}

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