PostGIS 3.7.0dev-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 ASSERT_STRING_EQUAL(h, exp);
42 }
43 else
44 {
45 ASSERT_STRING_EQUAL(h, exp);
46 }
47
48 if ( exp_srs )
49 {
50 if ( ! srs )
51 {
52 fprintf(stderr, "\nIn: %s\nExp: %s\nObt: (null)\n", in, exp_srs);
53 CU_ASSERT_EQUAL(srs, exp_srs);
54 }
55 else if (strcmp(srs, exp_srs))
56 {
57 fprintf(stderr, "\nIn: %s\nExp: %s\nObt: %s\n", in, exp_srs, srs);
58 ASSERT_STRING_EQUAL(srs, exp_srs);
59 }
60 }
61 else if ( srs )
62 {
63 fprintf(stderr, "\nIn: %s\nExp: (null)\nObt: %s\n", in, srs);
64 CU_ASSERT_EQUAL(srs, exp_srs);
65 }
66
67 lwgeom_free(g);
68 if ( h ) lwfree(h);
69 if ( srs ) lwfree(srs);
70}
71
72static void in_geojson_test_srid(void)
73{
74 /* Linestring */
75 do_geojson_test(
76 "LINESTRING(0 1,2 3,4 5)",
77 "{\"type\":\"LineString\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"EPSG:4326\"}},\"coordinates\":[[0,1],[2,3],[4,5]]}",
78 "EPSG:4326");
79
80 /* Polygon */
81 do_geojson_test(
82 "POLYGON((0 1,2 3,4 5,0 1))",
83 "{\"type\":\"Polygon\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"EPSG:4326\"}},\"coordinates\":[[[0,1],[2,3],[4,5],[0,1]]]}",
84 "EPSG:4326");
85
86 /* Polygon - with internal ring */
87 do_geojson_test(
88 "POLYGON((0 1,2 3,4 5,0 1),(6 7,8 9,10 11,6 7))",
89 "{\"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]]]}",
90 "EPSG:4326");
91
92 /* Multiline */
93 do_geojson_test(
94 "MULTILINESTRING((0 1,2 3,4 5),(6 7,8 9,10 11))",
95 "{\"type\":\"MultiLineString\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"EPSG:4326\"}},\"coordinates\":[[[0,1],[2,3],[4,5]],[[6,7],[8,9],[10,11]]]}",
96 "EPSG:4326");
97
98 /* MultiPolygon */
99 do_geojson_test(
100 "MULTIPOLYGON(((0 1,2 3,4 5,0 1)),((6 7,8 9,10 11,6 7)))",
101 "{\"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]]]]}",
102 "EPSG:4326");
103
104 /* Empty GeometryCollection */
105 do_geojson_test(
106 "GEOMETRYCOLLECTION EMPTY",
107 "{\"type\":\"GeometryCollection\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"EPSG:4326\"}},\"geometries\":[]}",
108 "EPSG:4326");
109}
110
111static void in_geojson_test_bbox(void)
112{
113 /* Linestring */
114 do_geojson_test(
115 "LINESTRING(0 1,2 3,4 5)",
116 "{\"type\":\"LineString\",\"bbox\":[0,1,4,5],\"coordinates\":[[0,1],[2,3],[4,5]]}",
117 NULL);
118
119 /* Polygon */
120 do_geojson_test(
121 "POLYGON((0 1,2 3,4 5,0 1))",
122 "{\"type\":\"Polygon\",\"bbox\":[0,1,4,5],\"coordinates\":[[[0,1],[2,3],[4,5],[0,1]]]}",
123 NULL);
124
125 /* Polygon - with internal ring */
126 do_geojson_test(
127 "POLYGON((0 1,2 3,4 5,0 1),(6 7,8 9,10 11,6 7))",
128 "{\"type\":\"Polygon\",\"bbox\":[0,1,4,5],\"coordinates\":[[[0,1],[2,3],[4,5],[0,1]],[[6,7],[8,9],[10,11],[6,7]]]}",
129 NULL);
130
131 /* Multiline */
132 do_geojson_test(
133 "MULTILINESTRING((0 1,2 3,4 5),(6 7,8 9,10 11))",
134 "{\"type\":\"MultiLineString\",\"bbox\":[0,1,10,11],\"coordinates\":[[[0,1],[2,3],[4,5]],[[6,7],[8,9],[10,11]]]}",
135 NULL);
136
137 /* MultiPolygon */
138 do_geojson_test(
139 "MULTIPOLYGON(((0 1,2 3,4 5,0 1)),((6 7,8 9,10 11,6 7)))",
140 "{\"type\":\"MultiPolygon\",\"bbox\":[0,1,10,11],\"coordinates\":[[[[0,1],[2,3],[4,5],[0,1]]],[[[6,7],[8,9],[10,11],[6,7]]]]}",
141 NULL);
142
143 /* GeometryCollection */
144 do_geojson_test(
145 "GEOMETRYCOLLECTION(LINESTRING(0 1,-1 3),LINESTRING(2 3,4 5))",
146 "{\"type\":\"GeometryCollection\",\"bbox\":[-1,1,4,5],\"geometries\":[{\"type\":\"LineString\",\"coordinates\":[[0,1],[-1,3]]},{\"type\":\"LineString\",\"coordinates\":[[2,3],[4,5]]}]}",
147 NULL);
148
149 /* Empty GeometryCollection */
150 do_geojson_test(
151 "GEOMETRYCOLLECTION EMPTY",
152 "{\"type\":\"GeometryCollection\",\"geometries\":[]}",
153 NULL);
154}
155
156static void in_geojson_test_geoms(void)
157{
158 /* Linestring */
159 do_geojson_test(
160 "LINESTRING(0 1,2 3,4 5)",
161 "{\"type\":\"LineString\",\"coordinates\":[[0,1],[2,3],[4,5]]}",
162 NULL);
163
164 /* Polygon */
165 do_geojson_test(
166 "POLYGON((0 1,2 3,4 5,0 1))",
167 "{\"type\":\"Polygon\",\"coordinates\":[[[0,1],[2,3],[4,5],[0,1]]]}",
168 NULL);
169
170 /* Polygon - with internal ring */
171 do_geojson_test(
172 "POLYGON((0 1,2 3,4 5,0 1),(6 7,8 9,10 11,6 7))",
173 "{\"type\":\"Polygon\",\"coordinates\":[[[0,1],[2,3],[4,5],[0,1]],[[6,7],[8,9],[10,11],[6,7]]]}",
174 NULL);
175
176 /* Multiline */
177 do_geojson_test(
178 "MULTILINESTRING((0 1,2 3,4 5),(6 7,8 9,10 11))",
179 "{\"type\":\"MultiLineString\",\"coordinates\":[[[0,1],[2,3],[4,5]],[[6,7],[8,9],[10,11]]]}",
180 NULL);
181
182 /* MultiPolygon */
183 do_geojson_test(
184 "MULTIPOLYGON(((0 1,2 3,4 5,0 1)),((6 7,8 9,10 11,6 7)))",
185 "{\"type\":\"MultiPolygon\",\"coordinates\":[[[[0,1],[2,3],[4,5],[0,1]]],[[[6,7],[8,9],[10,11],[6,7]]]]}",
186 NULL);
187
188 /* MultiPolygon with internal rings */
189 /* See http://trac.osgeo.org/postgis/ticket/2216 */
190 do_geojson_test(
191 "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)))",
192 "{'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]]]]}",
193 NULL);
194
195 /* GeometryCollection */
196 do_geojson_test(
197 "GEOMETRYCOLLECTION(POINT(0 1),LINESTRING(2 3,4 5))",
198 "{\"type\":\"GeometryCollection\",\"geometries\":[{\"type\":\"Point\",\"coordinates\":[0,1]},{\"type\":\"LineString\",\"coordinates\":[[2,3],[4,5]]}]}",
199 NULL);
200
201 /* Empty GeometryCollection */
202 do_geojson_test(
203 "GEOMETRYCOLLECTION EMPTY",
204 "{\"type\":\"GeometryCollection\",\"geometries\":[]}",
205 NULL);
206
207 /* Empty Point */
208 do_geojson_test(
209 "POINT EMPTY",
210 "{\"type\":\"Point\",\"coordinates\":[]}",
211 NULL);
212
213 /* Empty LineString */
214 do_geojson_test(
215 "LINESTRING EMPTY",
216 "{\"type\":\"LineString\",\"coordinates\":[]}",
217 NULL);
218
219 /* Empty Polygon */
220 do_geojson_test(
221 "POLYGON EMPTY",
222 "{\"type\":\"Polygon\",\"coordinates\":[]}",
223 NULL);
224
225 /* Empty MultiPoint */
226 do_geojson_test(
227 "MULTIPOINT EMPTY",
228 "{\"type\":\"MultiPoint\",\"coordinates\":[]}",
229 NULL);
230
231 /* Empty MultiPolygon */
232 do_geojson_test(
233 "MULTIPOLYGON EMPTY",
234 "{\"type\":\"MultiPolygon\",\"coordinates\":[]}",
235 NULL);
236}
237
238/*
239** Used by test harness to register the tests in this file.
240*/
241void in_geojson_suite_setup(void);
242void in_geojson_suite_setup(void)
243{
244 CU_pSuite suite = CU_add_suite("geojson_input", NULL, NULL);
245 PG_ADD_TEST(suite, in_geojson_test_srid);
246 PG_ADD_TEST(suite, in_geojson_test_bbox);
247 PG_ADD_TEST(suite, in_geojson_test_geoms);
248}
in_geojson_test_srid
static void in_geojson_test_srid(void)
Definition cu_in_geojson.c:72
in_geojson_test_geoms
static void in_geojson_test_geoms(void)
Definition cu_in_geojson.c:156
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:242
in_geojson_test_bbox
static void in_geojson_test_bbox(void)
Definition cu_in_geojson.c:111
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:21
ASSERT_STRING_EQUAL
#define ASSERT_STRING_EQUAL(o, e)
Definition liblwgeom/cunit/cu_tester.h:94
lwgeom_free
void lwgeom_free(LWGEOM *geom)
Definition lwgeom.c:1246
WKT_EXTENDED
#define WKT_EXTENDED
Definition liblwgeom.h:2221
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:708
lwfree
void lwfree(void *mem)
Definition lwutil.c:248
lwgeom_from_geojson
LWGEOM * lwgeom_from_geojson(const char *geojson, char **srs)
Create an LWGEOM object from a GeoJSON representation.
Definition lwin_geojson.c:411
liblwgeom_internal.h
cu_tester.h