tests: add unit tests for Direction helpers (#13885)

* tests: add unit tests for Direction helpers

* clang-format: fix leading blank line in Direction test

1 files changed, 40 insertions, 0 deletions

diff --git a/tests/helpers/Direction.cpp b/tests/helpers/Direction.cpp
new file mode 100644
index 00000000..9bf1c6f7
--- /dev/null
+++ b/tests/helpers/Direction.cpp
@@ -0,0 +1,40 @@
+#include <helpers/math/Direction.hpp>
+
+#include <gtest/gtest.h>
+
+using namespace Math;
+
+TEST(Helpers, directionFromCharValid) {
+    EXPECT_EQ(fromChar('r'), DIRECTION_RIGHT);
+    EXPECT_EQ(fromChar('l'), DIRECTION_LEFT);
+    EXPECT_EQ(fromChar('u'), DIRECTION_UP);
+    EXPECT_EQ(fromChar('d'), DIRECTION_DOWN);
+    EXPECT_EQ(fromChar('t'), DIRECTION_UP);
+    EXPECT_EQ(fromChar('b'), DIRECTION_DOWN);
+}
+
+TEST(Helpers, directionFromCharInvalid) {
+    EXPECT_EQ(fromChar('x'), DIRECTION_DEFAULT);
+    EXPECT_EQ(fromChar('z'), DIRECTION_DEFAULT);
+    EXPECT_EQ(fromChar('0'), DIRECTION_DEFAULT);
+    EXPECT_EQ(fromChar(' '), DIRECTION_DEFAULT);
+    EXPECT_EQ(fromChar('\0'), DIRECTION_DEFAULT);
+}
+
+TEST(Helpers, directionToString) {
+    EXPECT_STREQ(toString(DIRECTION_UP), "up");
+    EXPECT_STREQ(toString(DIRECTION_DOWN), "down");
+    EXPECT_STREQ(toString(DIRECTION_LEFT), "left");
+    EXPECT_STREQ(toString(DIRECTION_RIGHT), "right");
+    EXPECT_STREQ(toString(DIRECTION_DEFAULT), "default");
+}
+
+TEST(Helpers, directionFromCharToString) {
+    EXPECT_STREQ(toString(fromChar('r')), "right");
+    EXPECT_STREQ(toString(fromChar('l')), "left");
+    EXPECT_STREQ(toString(fromChar('u')), "up");
+    EXPECT_STREQ(toString(fromChar('d')), "down");
+    EXPECT_STREQ(toString(fromChar('t')), "up");
+    EXPECT_STREQ(toString(fromChar('b')), "down");
+    EXPECT_STREQ(toString(fromChar('x')), "default");
+}