PostGIS 3.0.6dev-r@@SVN_REVISION@@
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cu_in_geojson.c
Go to the documentation of this file.
1/**********************************************************************
2 *
3 * PostGIS - Spatial Types for PostgreSQL
4 * http://postgis.net
5 *
6 * Copyright 2013 Sandro Santilli <strk@kbt.io>
7 *
8 * This is free software; you can redistribute and/or modify it under
9 * the terms of the GNU General Public Licence. See the COPYING file.
10 *
11 **********************************************************************/
12
13#include <stdio.h>
14#include <stdlib.h>
15#include <string.h>
16#include "CUnit/Basic.h"
17
18#include "liblwgeom_internal.h"
19#include "cu_tester.h"
20
21static void do_geojson_test(const char * exp, char * in, char * exp_srs)
22{
23 LWGEOM *g;
24 char * h = NULL;
25 char * srs = NULL;
26 size_t size;
27
28 g = lwgeom_from_geojson(in, &srs);
29 if ( ! g )
30 {
31 fprintf(stderr, "\nIn: %s\nExp: %s\nObt: %s\n", in, exp, cu_error_msg);
32 CU_ASSERT(g != NULL);
33 return;
34 }
35
36 h = lwgeom_to_wkt(g, WKT_EXTENDED, 15, &size);
37
38 if (strcmp(h, exp))
39 {
40 fprintf(stderr, "\nIn: %s\nExp: %s\nObt: %s\n", in, exp, h);
41 CU_ASSERT_STRING_EQUAL(h, exp);
42 }
43
44 if ( exp_srs )
45 {
46 if ( ! srs )
47 {
48 fprintf(stderr, "\nIn: %s\nExp: %s\nObt: (null)\n", in, exp_srs);
49 CU_ASSERT_EQUAL(srs, exp_srs);
50 }
51 else if (strcmp(srs, exp_srs))
52 {
53 fprintf(stderr, "\nIn: %s\nExp: %s\nObt: %s\n", in, exp_srs, srs);
54 CU_ASSERT_STRING_EQUAL(srs, exp_srs);
55 }
56 }
57 else if ( srs )
58 {
59 fprintf(stderr, "\nIn: %s\nExp: (null)\nObt: %s\n", in, srs);
60 CU_ASSERT_EQUAL(srs, exp_srs);
61 }
62
63 lwgeom_free(g);
64 if ( h ) lwfree(h);
65 if ( srs ) lwfree(srs);
66}
67
68static void in_geojson_test_srid(void)
69{
70 /* Linestring */
71 do_geojson_test(
72 "LINESTRING(0 1,2 3,4 5)",
73 "{\"type\":\"LineString\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"EPSG:4326\"}},\"coordinates\":[[0,1],[2,3],[4,5]]}",
74 "EPSG:4326");
75
76 /* Polygon */
77 do_geojson_test(
78 "POLYGON((0 1,2 3,4 5,0 1))",
79 "{\"type\":\"Polygon\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"EPSG:4326\"}},\"coordinates\":[[[0,1],[2,3],[4,5],[0,1]]]}",
80 "EPSG:4326");
81
82 /* Polygon - with internal ring */
83 do_geojson_test(
84 "POLYGON((0 1,2 3,4 5,0 1),(6 7,8 9,10 11,6 7))",
85 "{\"type\":\"Polygon\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"EPSG:4326\"}},\"coordinates\":[[[0,1],[2,3],[4,5],[0,1]],[[6,7],[8,9],[10,11],[6,7]]]}",
86 "EPSG:4326");
87
88 /* Multiline */
89 do_geojson_test(
90 "MULTILINESTRING((0 1,2 3,4 5),(6 7,8 9,10 11))",
91 "{\"type\":\"MultiLineString\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"EPSG:4326\"}},\"coordinates\":[[[0,1],[2,3],[4,5]],[[6,7],[8,9],[10,11]]]}",
92 "EPSG:4326");
93
94 /* MultiPolygon */
95 do_geojson_test(
96 "MULTIPOLYGON(((0 1,2 3,4 5,0 1)),((6 7,8 9,10 11,6 7)))",
97 "{\"type\":\"MultiPolygon\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"EPSG:4326\"}},\"coordinates\":[[[[0,1],[2,3],[4,5],[0,1]]],[[[6,7],[8,9],[10,11],[6,7]]]]}",
98 "EPSG:4326");
99
100 /* Empty GeometryCollection */
101 do_geojson_test(
102 "GEOMETRYCOLLECTION EMPTY",
103 "{\"type\":\"GeometryCollection\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"EPSG:4326\"}},\"geometries\":[]}",
104 "EPSG:4326");
105}
106
107static void in_geojson_test_bbox(void)
108{
109 /* Linestring */
110 do_geojson_test(
111 "LINESTRING(0 1,2 3,4 5)",
112 "{\"type\":\"LineString\",\"bbox\":[0,1,4,5],\"coordinates\":[[0,1],[2,3],[4,5]]}",
113 NULL);
114
115 /* Polygon */
116 do_geojson_test(
117 "POLYGON((0 1,2 3,4 5,0 1))",
118 "{\"type\":\"Polygon\",\"bbox\":[0,1,4,5],\"coordinates\":[[[0,1],[2,3],[4,5],[0,1]]]}",
119 NULL);
120
121 /* Polygon - with internal ring */
122 do_geojson_test(
123 "POLYGON((0 1,2 3,4 5,0 1),(6 7,8 9,10 11,6 7))",
124 "{\"type\":\"Polygon\",\"bbox\":[0,1,4,5],\"coordinates\":[[[0,1],[2,3],[4,5],[0,1]],[[6,7],[8,9],[10,11],[6,7]]]}",
125 NULL);
126
127 /* Multiline */
128 do_geojson_test(
129 "MULTILINESTRING((0 1,2 3,4 5),(6 7,8 9,10 11))",
130 "{\"type\":\"MultiLineString\",\"bbox\":[0,1,10,11],\"coordinates\":[[[0,1],[2,3],[4,5]],[[6,7],[8,9],[10,11]]]}",
131 NULL);
132
133 /* MultiPolygon */
134 do_geojson_test(
135 "MULTIPOLYGON(((0 1,2 3,4 5,0 1)),((6 7,8 9,10 11,6 7)))",
136 "{\"type\":\"MultiPolygon\",\"bbox\":[0,1,10,11],\"coordinates\":[[[[0,1],[2,3],[4,5],[0,1]]],[[[6,7],[8,9],[10,11],[6,7]]]]}",
137 NULL);
138
139 /* GeometryCollection */
140 do_geojson_test(
141 "GEOMETRYCOLLECTION(LINESTRING(0 1,-1 3),LINESTRING(2 3,4 5))",
142 "{\"type\":\"GeometryCollection\",\"bbox\":[-1,1,4,5],\"geometries\":[{\"type\":\"LineString\",\"coordinates\":[[0,1],[-1,3]]},{\"type\":\"LineString\",\"coordinates\":[[2,3],[4,5]]}]}",
143 NULL);
144
145 /* Empty GeometryCollection */
146 do_geojson_test(
147 "GEOMETRYCOLLECTION EMPTY",
148 "{\"type\":\"GeometryCollection\",\"geometries\":[]}",
149 NULL);
150}
151
152static void in_geojson_test_geoms(void)
153{
154 /* Linestring */
155 do_geojson_test(
156 "LINESTRING(0 1,2 3,4 5)",
157 "{\"type\":\"LineString\",\"coordinates\":[[0,1],[2,3],[4,5]]}",
158 NULL);
159
160 /* Polygon */
161 do_geojson_test(
162 "POLYGON((0 1,2 3,4 5,0 1))",
163 "{\"type\":\"Polygon\",\"coordinates\":[[[0,1],[2,3],[4,5],[0,1]]]}",
164 NULL);
165
166 /* Polygon - with internal ring */
167 do_geojson_test(
168 "POLYGON((0 1,2 3,4 5,0 1),(6 7,8 9,10 11,6 7))",
169 "{\"type\":\"Polygon\",\"coordinates\":[[[0,1],[2,3],[4,5],[0,1]],[[6,7],[8,9],[10,11],[6,7]]]}",
170 NULL);
171
172 /* Multiline */
173 do_geojson_test(
174 "MULTILINESTRING((0 1,2 3,4 5),(6 7,8 9,10 11))",
175 "{\"type\":\"MultiLineString\",\"coordinates\":[[[0,1],[2,3],[4,5]],[[6,7],[8,9],[10,11]]]}",
176 NULL);
177
178 /* MultiPolygon */
179 do_geojson_test(
180 "MULTIPOLYGON(((0 1,2 3,4 5,0 1)),((6 7,8 9,10 11,6 7)))",
181 "{\"type\":\"MultiPolygon\",\"coordinates\":[[[[0,1],[2,3],[4,5],[0,1]]],[[[6,7],[8,9],[10,11],[6,7]]]]}",
182 NULL);
183
184 /* MultiPolygon with internal rings */
185 /* See http://trac.osgeo.org/postgis/ticket/2216 */
186 do_geojson_test(
187 "MULTIPOLYGON(((4 0,0 -4,-4 0,0 4,4 0),(2 0,0 2,-2 0,0 -2,2 0)),((24 0,20 -4,16 0,20 4,24 0),(22 0,20 2,18 0,20 -2,22 0)),((44 0,40 -4,36 0,40 4,44 0),(42 0,40 2,38 0,40 -2,42 0)))",
188 "{'type':'MultiPolygon','coordinates':[[[[4,0],[0,-4],[-4,0],[0,4],[4,0]],[[2,0],[0,2],[-2,0],[0,-2],[2,0]]],[[[24,0],[20,-4],[16,0],[20,4],[24,0]],[[22,0],[20,2],[18,0],[20,-2],[22,0]]],[[[44,0],[40,-4],[36,0],[40,4],[44,0]],[[42,0],[40,2],[38,0],[40,-2],[42,0]]]]}",
189 NULL);
190
191 /* GeometryCollection */
192 do_geojson_test(
193 "GEOMETRYCOLLECTION(POINT(0 1),LINESTRING(2 3,4 5))",
194 "{\"type\":\"GeometryCollection\",\"geometries\":[{\"type\":\"Point\",\"coordinates\":[0,1]},{\"type\":\"LineString\",\"coordinates\":[[2,3],[4,5]]}]}",
195 NULL);
196
197 /* Empty GeometryCollection */
198 do_geojson_test(
199 "GEOMETRYCOLLECTION EMPTY",
200 "{\"type\":\"GeometryCollection\",\"geometries\":[]}",
201 NULL);
202}
203
204/*
205** Used by test harness to register the tests in this file.
206*/
207void in_geojson_suite_setup(void);
208void in_geojson_suite_setup(void)
209{
210 CU_pSuite suite = CU_add_suite("geojson_input", NULL, NULL);
211 PG_ADD_TEST(suite, in_geojson_test_srid);
212 PG_ADD_TEST(suite, in_geojson_test_bbox);
213 PG_ADD_TEST(suite, in_geojson_test_geoms);
214}
in_geojson_test_srid
static void in_geojson_test_srid(void)
Definition cu_in_geojson.c:68
in_geojson_test_geoms
static void in_geojson_test_geoms(void)
Definition cu_in_geojson.c:152
do_geojson_test
static void do_geojson_test(const char *exp, char *in, char *exp_srs)
Definition cu_in_geojson.c:21
in_geojson_suite_setup
void in_geojson_suite_setup(void)
Definition cu_in_geojson.c:208
in_geojson_test_bbox
static void in_geojson_test_bbox(void)
Definition cu_in_geojson.c:107
cu_error_msg
char cu_error_msg[MAX_CUNIT_ERROR_LENGTH+1]
Definition liblwgeom/cunit/cu_tester.c:19
PG_ADD_TEST
#define PG_ADD_TEST(suite, testfunc)
Definition liblwgeom/cunit/cu_tester.h:20
lwgeom_free
void lwgeom_free(LWGEOM *geom)
Definition lwgeom.c:1138
WKT_EXTENDED
#define WKT_EXTENDED
Definition liblwgeom.h:2132
lwgeom_to_wkt
char * lwgeom_to_wkt(const LWGEOM *geom, uint8_t variant, int precision, size_t *size_out)
WKT emitter function.
Definition lwout_wkt.c:676
lwfree
void lwfree(void *mem)
Definition lwutil.c:242
lwgeom_from_geojson
LWGEOM * lwgeom_from_geojson(const char *geojson, char **srs)
Create an LWGEOM object from a GeoJSON representation.
Definition lwin_geojson.c:409
liblwgeom_internal.h
cu_tester.h