Add grid<> template class for representing 2D grids

1 files changed, 52 insertions, 0 deletions

diff --git a/tests/grid.cc b/tests/grid.cc
new file mode 100644
index 00000000..ff618088
--- /dev/null
+++ b/tests/grid.cc
@@ -0,0 +1,52 @@
+#include "grid.hpp"
+#include <bandit/bandit.h>
+using namespace bandit;
+
+go_bandit([]() {
+	describe("grid<>", []() {
+
+		auto w0 = size_t { 123 };
+		auto h0 = size_t { 42 };
+
+		it("width(...) properly sets returned width", [&](){
+			// Setup
+			grid<int> g;
+			// Exercise
+			g.width(w0);
+			// Verify
+			AssertThat(g.width(), Equals(w0));
+		});
+
+		it("height(...) properly sets returned height", [&](){
+			// Setup
+			grid<int> g;
+			// Exercise
+			g.height(h0);
+			// Verify
+			AssertThat(g.height(), Equals(h0));
+		});
+
+		it("resize(w, h) properly sets returned width and height", [&](){
+			// Setup
+			grid<int> g;
+			// Exercise
+			g.resize(w0, h0);
+			// Verify
+			AssertThat(g.width(), Equals(w0));
+			AssertThat(g.height(), Equals(h0));
+		});
+
+		it("operator () can access ((w-1), (h-1)) element", [&](){
+			// Class with 'magic' default value
+			struct X { int magic = 1001; };
+			// Setup
+			grid<X> g;
+			g.resize(w0 + 1, h0 + 1);
+			// Exercise
+			auto x = g(w0, h0);
+			// Verify
+			AssertThat(x.magic, Equals(1001));
+		});
+
+	});
+});