Add test coverage of loading raster data - refs #192 (indirectly #202)

mapbox · Apr 18, 2016 · df00aea · df00aea
1 parent dba0faf
commit df00aea
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Showing 2 changed files with 28 additions and 1 deletion.
diff --git a/test/data/image.mvt b/test/data/image.mvt
diff --git a/test/unit/load/merge.cpp b/test/unit/load/merge.cpp
@@ -10,7 +10,7 @@
 #include <fstream>
 #include <string>
 
-TEST_CASE( "merge_from_compressed_buffer" )
+TEST_CASE( "merge_from_compressed_buffer - vector" )
 {
     std::ifstream stream("./test/data/0.0.0.vector.mvt",std::ios_base::in|std::ios_base::binary);
     REQUIRE(stream.is_open());
@@ -64,5 +64,32 @@ TEST_CASE( "merge_from_compressed_buffer" )
             CHECK(errors.size() == 0);
         }
     }
+}
 
+TEST_CASE( "merge_from_compressed_buffer - raster" )
+{
+    std::ifstream stream("./test/data/image.mvt",std::ios_base::in|std::ios_base::binary);
+    REQUIRE(stream.is_open());
+    std::string buffer(std::istreambuf_iterator<char>(stream.rdbuf()),(std::istreambuf_iterator<char>()));
+    REQUIRE(buffer.size() == 146098);
+    mapnik::vector_tile_impl::merc_tile tile(0,0,0);
+    mapnik::vector_tile_impl::merge_from_compressed_buffer(tile, buffer.data(), buffer.size(), true, true);
+    CHECK(tile.get_layers().size() == 1);
+    {
+        protozero::pbf_reader tile_msg(tile.get_buffer());
+        while (tile_msg.next(mapnik::vector_tile_impl::Tile_Encoding::LAYERS))
+        {
+            auto layer_data = tile_msg.get_data();
+            protozero::pbf_reader layer_props_msg(layer_data);
+            auto layer_info = mapnik::vector_tile_impl::get_layer_name_and_version(layer_props_msg);
+            std::string const& layer_name = layer_info.first;
+            std::uint32_t version = layer_info.second;
+            CHECK(layer_name == "layer");
+            CHECK(version == 1);
+            std::set<mapnik::vector_tile_impl::validity_error> errors;
+            protozero::pbf_reader layer_valid_msg(layer_data);
+            layer_is_valid(layer_valid_msg, errors);
+            CHECK(errors.size() == 0);
+        }
+    }
 }