Add tests for ptarray_insert_point (see #1640)

git-svn-id: http://svn.osgeo.org/postgis/trunk@9364 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/liblwgeom/cunit/cu_ptarray.c b/liblwgeom/cunit/cu_ptarray.c
index e25484b53509d5b451f3430a29601f072ed6b056..47eeec89ff86f23408e61a9b52ecca341b41edfd 100644 (file)
--- a/liblwgeom/cunit/cu_ptarray.c
+++ b/liblwgeom/cunit/cu_ptarray.c
@@ -57,6 +57,51 @@ static void test_ptarray_append_point(void)
        lwline_free(line);
 }
 
+static void test_ptarray_insert_point(void)
+{
+       LWLINE *line;
+       char *wkt;
+       POINT4D p;
+
+       line = lwgeom_as_lwline(lwgeom_from_text("LINESTRING EMPTY"));
+       p.x = 1; 
+       p.y = 1;
+       ptarray_insert_point(line->points, &p, 0);
+       wkt = lwgeom_to_text(lwline_as_lwgeom(line));
+       CU_ASSERT_STRING_EQUAL(wkt,"LINESTRING(1 1)");
+       lwfree(wkt);
+
+       p.x = 2; 
+       p.y = 20;
+       ptarray_insert_point(line->points, &p, 0);
+       wkt = lwgeom_to_text(lwline_as_lwgeom(line));
+       CU_ASSERT_STRING_EQUAL(wkt,"LINESTRING(2 20,1 1)");
+       lwfree(wkt);
+
+       p.x = 3; 
+       p.y = 30;
+       ptarray_insert_point(line->points, &p, 1);
+       wkt = lwgeom_to_text(lwline_as_lwgeom(line));
+       CU_ASSERT_STRING_EQUAL(wkt,"LINESTRING(2 20,3 30,1 1)");
+       lwfree(wkt);
+
+       p.x = 4; 
+       p.y = 40;
+       ptarray_insert_point(line->points, &p, 0);
+       wkt = lwgeom_to_text(lwline_as_lwgeom(line));
+       CU_ASSERT_STRING_EQUAL(wkt,"LINESTRING(4 40,2 20,3 30,1 1)");
+       lwfree(wkt);
+
+       p.x = 5; 
+       p.y = 50;
+       ptarray_insert_point(line->points, &p, 4);
+       wkt = lwgeom_to_text(lwline_as_lwgeom(line));
+       CU_ASSERT_STRING_EQUAL(wkt,"LINESTRING(4 40,2 20,3 30,1 1,5 50)");
+       lwfree(wkt);
+
+       lwline_free(line);
+}
+
 static void test_ptarray_append_ptarray(void)
 {
        LWLINE *line1, *line2;
@@ -329,6 +374,7 @@ CU_TestInfo ptarray_tests[] =
        PG_TEST(test_ptarray_locate_point),
        PG_TEST(test_ptarray_isccw),
        PG_TEST(test_ptarray_desegmentize),
+       PG_TEST(test_ptarray_insert_point),
        CU_TEST_INFO_NULL
 };
 CU_SuiteInfo ptarray_suite = {"ptarray", NULL, NULL, ptarray_tests };