Add testcase for #1311 (lwgeom_split).

Also fix existing testcase (wasn't really testing it).

git-svn-id: http://svn.osgeo.org/postgis/trunk@8206 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/liblwgeom/cunit/cu_split.c b/liblwgeom/cunit/cu_split.c
index 2fa0f1d95e96503c98c47e5b60ea91793565f8e9..cc81b7b3bed9953e4c8866a2f3b882b2ff705782 100644 (file)
--- a/liblwgeom/cunit/cu_split.c
+++ b/liblwgeom/cunit/cu_split.c
@@ -84,29 +84,45 @@ static void test_lwline_split_by_point_to(void)
 static void test_lwgeom_split(void)
 {
        LWGEOM *geom, *blade, *ret;
-       char *wkt;
+       char *wkt, *in_wkt;
 
        geom = lwgeom_from_wkt(
 "MULTILINESTRING((-5 -2,0 0),(0 0,10 10))",
        LW_PARSER_CHECK_NONE);
        CU_ASSERT(geom != NULL);
-
-       blade = lwgeom_as_lwpoint(lwgeom_from_wkt(
+       blade = lwgeom_from_wkt(
                "POINT(0 0)",
-               LW_PARSER_CHECK_NONE));
+               LW_PARSER_CHECK_NONE);
        CU_ASSERT(blade != NULL);
-
        ret = lwgeom_split(geom, blade);
        CU_ASSERT(ret != NULL);
-
-       wkt = lwgeom_to_ewkt(geom);
-       /*printf("%s\n", wkt);*/
-       CU_ASSERT_STRING_EQUAL(wkt, "MULTILINESTRING((-5 -2,0 0),(0 0,10 10))");
+       wkt = lwgeom_to_ewkt(ret);
+       in_wkt = "GEOMETRYCOLLECTION(LINESTRING(-5 -2,0 0),LINESTRING(0 0,10 10))";
+        if (strcmp(in_wkt, wkt))
+                fprintf(stderr, "\nExp:  %s\nObt:  %s\n", in_wkt, wkt);
+       CU_ASSERT_STRING_EQUAL(wkt, in_wkt);
        lwfree(wkt);
-
-       lwgeom_free((LWGEOM*)ret);
-       lwgeom_free((LWGEOM*)geom);
-       lwgeom_free((LWGEOM*)blade);
+       lwgeom_free(ret);
+       lwgeom_free(geom);
+       lwgeom_free(blade);
+
+        /* See #1311 */
+        geom = lwgeom_from_wkt(
+                "LINESTRING(0 0,10 0,20 4,0 3)",
+                LW_PARSER_CHECK_NONE);
+        CU_ASSERT(geom != NULL);
+        blade = lwgeom_from_wkt("POINT(10 0)", LW_PARSER_CHECK_NONE);
+        ret = lwgeom_split(geom, blade);
+        CU_ASSERT(ret != NULL);
+        wkt = lwgeom_to_ewkt(ret);
+       in_wkt = "GEOMETRYCOLLECTION(LINESTRING(0 0,10 0),LINESTRING(10 0,20 4,0 3))";
+        if (strcmp(in_wkt, wkt))
+                fprintf(stderr, "\nExp:  %s\nObt:  %s\n", in_wkt, wkt);
+        CU_ASSERT_STRING_EQUAL(wkt, in_wkt);
+        lwfree(wkt);
+       lwgeom_free(ret);
+       lwgeom_free(geom);
+       lwgeom_free(blade);
 }