PostGIS  2.3.8dev-r@@SVN_REVISION@@

◆ 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().

105 {
106  LWLINE *line1, *line2;
107  int ret;
108  char *wkt;
109 
110  /* Empty first line */
111  line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING EMPTY"));
112  line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(0 0,0 10,5 5)"));
113  ret = ptarray_append_ptarray(line1->points, line2->points, -1);
114  CU_ASSERT(ret == LW_SUCCESS);
115  wkt = lwgeom_to_text(lwline_as_lwgeom(line1));
116  ASSERT_STRING_EQUAL(wkt, "LINESTRING(0 0,0 10,5 5)");
117  lwfree(wkt);
118  lwline_free(line2);
119  lwline_free(line1);
120 
121  /* Empty second line */
122  line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(0 0, 5 5, 6 3)"));
123  line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING EMPTY"));
124  ret = ptarray_append_ptarray(line1->points, line2->points, -1);
125  CU_ASSERT(ret == LW_SUCCESS);
126  wkt = lwgeom_to_text(lwline_as_lwgeom(line1));
127  ASSERT_STRING_EQUAL(wkt, "LINESTRING(0 0,5 5,6 3)");
128  lwfree(wkt);
129  lwline_free(line2);
130  lwline_free(line1);
131 
132  /* Both lines empty */
133  line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING EMPTY"));
134  line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING EMPTY"));
135  ret = ptarray_append_ptarray(line1->points, line2->points, -1);
136  CU_ASSERT(ret == LW_SUCCESS);
137  wkt = lwgeom_to_text(lwline_as_lwgeom(line1));
138  ASSERT_STRING_EQUAL(wkt, "LINESTRING EMPTY");
139  lwfree(wkt);
140  lwline_free(line2);
141  lwline_free(line1);
142 
143  /* Sane sewing */
144  line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(10 4, 0 0,5 7)"));
145  line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(5 7,12 43, 42 15)"));
146  ret = ptarray_append_ptarray(line1->points, line2->points, 0);
147  CU_ASSERT(ret == LW_SUCCESS);
148  wkt = lwgeom_to_text(lwline_as_lwgeom(line1));
149  ASSERT_STRING_EQUAL(wkt, "LINESTRING(10 4,0 0,5 7,12 43,42 15)");
150  lwfree(wkt);
151  lwline_free(line2);
152  lwline_free(line1);
153 
154  /* Untolerated sewing */
155  line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(10 4, 0 0,5 7)"));
156  line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(5.5 7,12 43, 42 15)"));
157  ret = ptarray_append_ptarray(line1->points, line2->points, 0);
158  CU_ASSERT(ret == LW_FAILURE);
159  lwline_free(line2);
160  lwline_free(line1);
161 
162  /* Tolerated sewing */
163  line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(10 4, 0 0,5 7)"));
164  line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(5.5 7,12 43, 42 15)"));
165  ret = ptarray_append_ptarray(line1->points, line2->points, .7);
166  CU_ASSERT(ret == LW_SUCCESS);
167  wkt = lwgeom_to_text(lwline_as_lwgeom(line1));
168  ASSERT_STRING_EQUAL(wkt, "LINESTRING(10 4,0 0,5 7,5.5 7,12 43,42 15)");
169  lwfree(wkt);
170  lwline_free(line2);
171  lwline_free(line1);
172 
173  /* Check user input trust (creates non-simple line */
174  line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(0 0,0 10)"));
175  line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(0 0,0 10)"));
176  ret = ptarray_append_ptarray(line1->points, line2->points, -1);
177  CU_ASSERT(ret == LW_SUCCESS);
178  wkt = lwgeom_to_text(lwline_as_lwgeom(line1));
179  ASSERT_STRING_EQUAL(wkt, "LINESTRING(0 0,0 10,0 0,0 10)");
180  lwfree(wkt);
181  lwline_free(line2);
182  lwline_free(line1);
183 
184  /* Mixed dimensionality is not allowed */
185  line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(0 10 0, 10 0 0)"));
186  line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(10 0,11 0)"));
187  ret = ptarray_append_ptarray(line1->points, line2->points, -1);
188  CU_ASSERT(ret == LW_FAILURE);
189  lwline_free(line2);
190  lwline_free(line1);
191 
192  /* Appending a read-only pointarray is allowed */
193  line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(0 10, 10 0)"));
194  line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(10 0,11 0)"));
195  FLAGS_SET_READONLY(line2->points->flags, 1);
196  ret = ptarray_append_ptarray(line1->points, line2->points, -1);
197  CU_ASSERT(ret == LW_SUCCESS);
198  wkt = lwgeom_to_text(lwline_as_lwgeom(line1));
199  ASSERT_STRING_EQUAL(wkt, "LINESTRING(0 10,10 0,11 0)");
200  lwfree(wkt);
201  FLAGS_SET_READONLY(line2->points->flags, 0); /* for lwline_free */
202  lwline_free(line2);
203  lwline_free(line1);
204 
205  /* Appending to a read-only pointarray is forbidden */
206  line1 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(0 10, 10 0)"));
207  line2 = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(10 0,11 0)"));
208  FLAGS_SET_READONLY(line1->points->flags, 1);
209  ret = ptarray_append_ptarray(line1->points, line2->points, -1);
210  CU_ASSERT(ret == LW_FAILURE);
211  lwline_free(line2);
212  FLAGS_SET_READONLY(line1->points->flags, 0); /* for lwline_free */
213  lwline_free(line1);
214 
215 }
void lwfree(void *mem)
Definition: lwutil.c:242
#define ASSERT_STRING_EQUAL(o, e)
#define LW_SUCCESS
Definition: liblwgeom.h:79
void lwline_free(LWLINE *line)
Definition: lwline.c:76
#define LW_FAILURE
Definition: liblwgeom.h:78
static LWGEOM * lwgeom_from_text(const char *str)
Definition: cu_ptarray.c:24
LWGEOM * lwline_as_lwgeom(const LWLINE *obj)
Definition: lwgeom.c:262
uint8_t flags
Definition: liblwgeom.h:368
static char * lwgeom_to_text(const LWGEOM *geom)
Definition: cu_ptarray.c:32
int ptarray_append_ptarray(POINTARRAY *pa1, POINTARRAY *pa2, double gap_tolerance)
Append a POINTARRAY, pa2 to the end of an existing POINTARRAY, pa1.
Definition: ptarray.c:187
LWLINE * lwgeom_as_lwline(const LWGEOM *lwgeom)
Definition: lwgeom.c:102
#define FLAGS_SET_READONLY(flags, value)
Definition: liblwgeom.h:149
POINTARRAY * points
Definition: liblwgeom.h:421
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