cu_wrapx.c

Go to the documentation of this file.

/**********************************************************************
 *
 * PostGIS - Spatial Types for PostgreSQL
 * http://postgis.net
 *
 * Copyright (C) 2016 Sandro Santilli <strk@kbt.io>
 *
 * This is free software; you can redistribute and/or modify it under
 * the terms of the GNU General Public Licence. See the COPYING file.
 *
 **********************************************************************/

#include "CUnit/Basic.h"
#include "cu_tester.h"

#include "liblwgeom.h"
#include "liblwgeom_internal.h"

static void test_lwgeom_wrapx(void)
{
        LWGEOM *geom, *ret;
        char *exp_wkt, *obt_wkt;

        geom = lwgeom_from_wkt(
                "POLYGON EMPTY",
                LW_PARSER_CHECK_NONE);
        CU_ASSERT_FATAL(geom != NULL);
        ret = lwgeom_wrapx(geom, 0, 20);
        CU_ASSERT_FATAL(ret != NULL);
        obt_wkt = lwgeom_to_ewkt(ret);
        exp_wkt = "POLYGON EMPTY";
        ASSERT_STRING_EQUAL(obt_wkt, exp_wkt);
        lwfree(obt_wkt);
        lwgeom_free(ret);
        lwgeom_free(geom);

        geom = lwgeom_from_wkt(
                "POINT(0 0)",
                LW_PARSER_CHECK_NONE);
        CU_ASSERT_FATAL(geom != NULL);
        ret = lwgeom_wrapx(geom, 2, 10);
        CU_ASSERT_FATAL(ret != NULL);
        obt_wkt = lwgeom_to_ewkt(ret);
        exp_wkt = "POINT(10 0)";
        ASSERT_STRING_EQUAL(obt_wkt, exp_wkt);
        lwfree(obt_wkt);
        lwgeom_free(ret);
        lwgeom_free(geom);

        geom = lwgeom_from_wkt(
                "POINT(0 0)",
                LW_PARSER_CHECK_NONE);
        CU_ASSERT_FATAL(geom != NULL);
        ret = lwgeom_wrapx(geom, 0, 20);
        CU_ASSERT_FATAL(ret != NULL);
        obt_wkt = lwgeom_to_ewkt(ret);
        exp_wkt = "POINT(0 0)";
        ASSERT_STRING_EQUAL(obt_wkt, exp_wkt);
        lwfree(obt_wkt);
        lwgeom_free(ret);
        lwgeom_free(geom);

        geom = lwgeom_from_wkt(
                "POINT(0 0)",
                LW_PARSER_CHECK_NONE);
        CU_ASSERT_FATAL(geom != NULL);
        ret = lwgeom_wrapx(geom, 0, -20);
        CU_ASSERT_FATAL(ret != NULL);
        obt_wkt = lwgeom_to_ewkt(ret);
        exp_wkt = "POINT(0 0)";
        ASSERT_STRING_EQUAL(obt_wkt, exp_wkt);
        lwfree(obt_wkt);
        lwgeom_free(ret);
        lwgeom_free(geom);

        geom = lwgeom_from_wkt(
                "LINESTRING(0 0,10 0)",
                LW_PARSER_CHECK_NONE);
        CU_ASSERT_FATAL(geom != NULL);
        ret = lwgeom_wrapx(geom, 8, -10);
        CU_ASSERT_FATAL(ret != NULL);
        obt_wkt = lwgeom_to_ewkt(ret);
        exp_wkt = "MULTILINESTRING((0 0,8 0),(-2 0,0 0))";
        ASSERT_STRING_EQUAL(obt_wkt, exp_wkt);
        lwfree(obt_wkt);
        lwgeom_free(ret);
        lwgeom_free(geom);

        geom = lwgeom_from_wkt(
                "MULTILINESTRING((-5 -2,0 0),(0 0,10 10))",
                LW_PARSER_CHECK_NONE);
        CU_ASSERT_FATAL(geom != NULL);
        ret = lwgeom_wrapx(geom, 0, 20);
        CU_ASSERT_FATAL(ret != NULL);
        obt_wkt = lwgeom_to_ewkt(ret);
        exp_wkt = "MULTILINESTRING((15 -2,20 0),(0 0,10 10))";
        ASSERT_STRING_EQUAL(obt_wkt, exp_wkt);
        lwfree(obt_wkt);
        lwgeom_free(ret);
        lwgeom_free(geom);

        geom = lwgeom_from_wkt(
                "MULTIPOLYGON("
                " ((0 0,10 0,10 10,0 10,0 0),(2 2,4 2,4 4,2 4,2 2)),"
                " ((0 11,10 11,10 21,0 21,0 11),(2 13,4 13,4 15,2 15,2 13))"
                ")",
                LW_PARSER_CHECK_NONE);
        CU_ASSERT_FATAL(geom != NULL);
        ret = lwgeom_wrapx(geom, 2, 20);
        CU_ASSERT_FATAL(ret != NULL);
        obt_wkt = lwgeom_to_ewkt(ret);
        exp_wkt = "GEOMETRYCOLLECTION("
                                                "MULTIPOLYGON("
                                                "((22 0,20 0,20 10,22 10,22 4,22 2,22 0)),"
                                                "((2 10,10 10,10 0,2 0,2 2,4 2,4 4,2 4,2 10))"
                                                "),"
                                                "MULTIPOLYGON("
                                                "((22 11,20 11,20 21,22 21,22 15,22 13,22 11)),"
                                                "((2 21,10 21,10 11,2 11,2 13,4 13,4 15,2 15,2 21))"
                                                ")"
                                                ")";
        ASSERT_STRING_EQUAL(obt_wkt, exp_wkt);
        lwfree(obt_wkt);
        lwgeom_free(ret);
        lwgeom_free(geom);

        geom = lwgeom_from_wkt(
                "GEOMETRYCOLLECTION("
                " MULTILINESTRING((-5 -2,0 0),(0 0,10 10)),"
                " POINT(-5 0),"
                " POLYGON EMPTY"
                ")",
                LW_PARSER_CHECK_NONE);
        CU_ASSERT_FATAL(geom != NULL);
        ret = lwgeom_wrapx(geom, 0, 20);
        CU_ASSERT_FATAL(ret != NULL);
        obt_wkt = lwgeom_to_ewkt(ret);
        exp_wkt = "GEOMETRYCOLLECTION("
                                                "MULTILINESTRING((15 -2,20 0),(0 0,10 10)),"
                                                "POINT(15 0),"
                                                "POLYGON EMPTY"
                                                ")";
        ASSERT_STRING_EQUAL(obt_wkt, exp_wkt);
        lwfree(obt_wkt);
        lwgeom_free(ret);
        lwgeom_free(geom);

}


/*
** Used by test harness to register the tests in this file.
*/
void wrapx_suite_setup(void);
void wrapx_suite_setup(void)
{
        CU_pSuite suite = CU_add_suite("wrapx", NULL, NULL);
        PG_ADD_TEST(suite, test_lwgeom_wrapx);
}