[geos-commits] r3147 - in trunk/tests/unit: . capi

[svn_geos at osgeo.org]

Author: strk
Date: 2010-12-02 08:44:03 -0800 (Thu, 02 Dec 2010)
New Revision: 3147

Added:
   trunk/tests/unit/capi/GEOSSnapTest.cpp
Modified:
   trunk/tests/unit/Makefile.am
Log:
Add test for C-API GEOSSnap interface


Modified: trunk/tests/unit/Makefile.am
===================================================================
--- trunk/tests/unit/Makefile.am	2010-12-02 15:07:07 UTC (rev 3146)
+++ trunk/tests/unit/Makefile.am	2010-12-02 16:44:03 UTC (rev 3147)
@@ -99,7 +99,8 @@
 	capi/GEOSGeom_create.cpp \
 	capi/GEOSGeom_extractUniquePointsTest.cpp \
 	capi/GEOSOrientationIndex.cpp \
-	capi/GEOSLineString_PointTest.cpp
+	capi/GEOSLineString_PointTest.cpp \
+	capi/GEOSSnapTest.cpp
 
 noinst_HEADERS = \
 	utility.h

Added: trunk/tests/unit/capi/GEOSSnapTest.cpp
===================================================================
--- trunk/tests/unit/capi/GEOSSnapTest.cpp	                        (rev 0)
+++ trunk/tests/unit/capi/GEOSSnapTest.cpp	2010-12-02 16:44:03 UTC (rev 3147)
@@ -0,0 +1,121 @@
+// $Id: GEOSSimplifyTest.cpp 2424 2009-04-29 23:52:36Z mloskot $
+// 
+// Test Suite for C-API GEOSSimplify
+
+#include <tut.hpp>
+// geos
+#include <geos_c.h>
+// std
+#include <cstdarg>
+#include <cstdio>
+#include <cstdlib>
+#include <memory>
+
+namespace tut
+{
+    //
+    // Test Group
+    //
+
+    // Common data used in test cases.
+    struct test_capigeossnap_data
+    {
+        GEOSGeometry* geom1_;
+        GEOSGeometry* geom2_;
+        GEOSGeometry* geom3_;
+        GEOSWKTWriter* w_;
+
+        static void notice(const char *fmt, ...)
+        {
+            std::fprintf( stdout, "NOTICE: ");
+
+            va_list ap;
+            va_start(ap, fmt);
+            std::vfprintf(stdout, fmt, ap);
+            va_end(ap);
+        
+            std::fprintf(stdout, "\n");
+        }
+
+        test_capigeossnap_data()
+            : geom1_(0), geom2_(0), geom3_(0), w_(0)
+        {
+            initGEOS(notice, notice);
+            w_ = GEOSWKTWriter_create();
+            GEOSWKTWriter_setTrim(w_, 1);
+        }       
+
+        ~test_capigeossnap_data()
+        {
+            GEOSGeom_destroy(geom1_);
+            GEOSGeom_destroy(geom2_);
+            GEOSGeom_destroy(geom3_);
+            geom1_ = 0;
+            geom2_ = 0;
+            geom3_ = 0;
+            finishGEOS();
+        }
+
+    };
+
+    typedef test_group<test_capigeossnap_data> group;
+    typedef group::object object;
+
+    group test_capigeossnap_group("capi::GEOSSnap");
+
+    //
+    // Test Cases
+    //
+
+    /// Polygon snapped to point
+    template<>
+    template<>
+    void object::test<1>()
+    {
+        geom1_ = GEOSGeomFromWKT("POLYGON ((0 0, 10 0, 10 10, 0 10, 0 0))");
+        geom2_ = GEOSGeomFromWKT("POINT(0.5 0)");
+        geom3_ = GEOSSnap(geom1_, geom2_, 1);
+
+        char* wkt_c = GEOSWKTWriter_write(w_, geom3_);
+        std::string out(wkt_c); 
+        free(wkt_c);
+
+        ensure_equals(out, "POLYGON ((0.5 0, 10 0, 10 10, 0 10, 0.5 0))");
+    }
+    
+    /// Line snapped to line (vertex)
+    template<>
+    template<>
+    void object::test<2>()
+    {
+        geom1_ = GEOSGeomFromWKT("LINESTRING (-30 -20, 50 60, 50 0)");
+        geom2_ = GEOSGeomFromWKT("LINESTRING (-29 -20, 40 60, 51 0)");
+        geom3_ = GEOSSnap(geom1_, geom2_, 2);
+
+        char* wkt_c = GEOSWKTWriter_write(w_, geom3_);
+        std::string out(wkt_c); 
+        free(wkt_c);
+
+        ensure_equals(out, "LINESTRING (-29 -20, 50 60, 51 0)");
+    }
+
+    /// Line snapped to line (segment)
+    template<>
+    template<>
+    void object::test<3>()
+    {
+        geom1_ = GEOSGeomFromWKT("LINESTRING (-20 -20, 50 50, 100 100)");
+        geom2_ = GEOSGeomFromWKT("LINESTRING (-10 -9, 40 20, 80 79)");
+        geom3_ = GEOSSnap(geom1_, geom2_, 2);
+
+        char* wkt_c = GEOSWKTWriter_write(w_, geom3_);
+        std::string out(wkt_c); 
+        free(wkt_c);
+
+        ensure_equals(out,
+          "LINESTRING (-20 -20, -10 -9, 50 50, 80 79, 100 100)"
+        );
+    }
+    
+} // namespace tut
+