2 files changed, 21 insertions, 0 deletions
diff --git a/test/perf-geoData.cpp b/test/perf-geoData.cpp
index 2d79a90..4fed632 100644
--- a/test/perf-geoData.cpp
+++ b/test/perf-geoData.cpp
@@ -23,9 +23,20 @@ namespace {
 			});
 		}
 	}
+
+	void
+	terrain_walkBoundary(benchmark::State & state)
+	{
+		for (auto _ : state) {
+			tm.boundaryWalk([](auto heh) {
+				benchmark::DoNotOptimize(heh);
+			});
+		}
+	}
 }
 
 BENCHMARK(terrain_findPoint);
 BENCHMARK(terrain_walk);
+BENCHMARK(terrain_walkBoundary);
 
 BENCHMARK_MAIN();
diff --git a/test/test-geoData.cpp b/test/test-geoData.cpp
index 258bd9c..34c9cb6 100644
--- a/test/test-geoData.cpp
+++ b/test/test-geoData.cpp
@@ -118,6 +118,16 @@ BOOST_DATA_TEST_CASE(findRayIntersect,
 	BOOST_CHECK_CLOSE_VEC(fixedTerrtain.intersectRay({p, d}).value(), i);
 }
 
+BOOST_AUTO_TEST_CASE(boundaryWalk)
+{
+	size_t count {};
+	fixedTerrtain.boundaryWalk([&count](auto heh) {
+		BOOST_CHECK(fixedTerrtain.is_boundary(heh));
+		count++;
+	});
+	BOOST_CHECK_EQUAL(count, 2 * (ncols + nrows - 2));
+}
+
 using WalkTerrainData = std::tuple<glm::vec2, glm::vec2, std::vector<int>>;
 
 BOOST_DATA_TEST_CASE(walkTerrain,