X-Git-Url: http://git.scottworley.com/slidingtile/blobdiff_plain/2bf3412d1ed0c9da3c83d9ca276a7c91e4356d6a..e86755d75f4040ae6619702a6501325ea81b03e1:/sliding_tile_lib_test.cc

diff --git a/sliding_tile_lib_test.cc b/sliding_tile_lib_test.cc
new file mode 100644
index 0000000..2050896
--- /dev/null
+++ b/sliding_tile_lib_test.cc
@@ -0,0 +1,34 @@
+#include "sliding_tile_lib.h"
+
+#include "gtest/gtest.h"
+#include "gmock/gmock.h"
+#include <vector>
+
+TEST(Adjacency, Adjacency) {
+	const signed char LEFT  = -1;
+	const signed char RIGHT = +1;
+	const signed char UP    = -BOARD_DIM;
+	const signed char DOWN  = +BOARD_DIM;
+  for (int i = 0; i < BOARD_SIZE; i++) {
+    SCOPED_TRACE(i);
+    std::vector<signed char> expected;
+	  if (i >= BOARD_DIM) {
+		  expected.push_back(i + UP);
+	  }
+	  if (i < BOARD_SIZE - BOARD_DIM) {
+		  expected.push_back(i + DOWN);
+	  }
+	  if (i % BOARD_DIM != 0) {
+		  expected.push_back(i + LEFT);
+	  }
+	  if (i % BOARD_DIM != BOARD_DIM - 1) {
+		  expected.push_back(i + RIGHT);
+	  }
+
+    std::vector<signed char> actual;
+    for (int j = 0; adjacent[i][j] >= 0; j++) {
+      actual.push_back(adjacent[i][j]);
+    }
+    EXPECT_THAT(actual, testing::UnorderedElementsAreArray(expected));
+  }
+}