1 files changed, 23 insertions, 0 deletions
diff --git a/tests/test_byteio.cpp b/tests/test_byteio.cpp
new file mode 100644
index 0000000..81fa741
--- /dev/null
+++ b/tests/test_byteio.cpp
@@ -0,0 +1,23 @@
+#include <doctest/doctest.h>
+
+#include <vector>
+
+#include "wireframe/byteio.hpp"
+
+using namespace wireframe;
+
+TEST_CASE("read_be16 reads a big-endian 16-bit value") {
+    std::vector<unsigned char> bytes = {0x12, 0x34};
+    CHECK(read_be16(bytes, 0) == 0x1234);
+}
+
+TEST_CASE("read_be32 reads a big-endian 32-bit value") {
+    std::vector<unsigned char> bytes = {0xDE, 0xAD, 0xBE, 0xEF};
+    CHECK(read_be32(bytes, 0) == 0xDEADBEEFu);
+}
+
+TEST_CASE("read_be16/read_be32 read from a nonzero offset") {
+    std::vector<unsigned char> bytes = {0x00, 0x00, 0x12, 0x34, 0x56, 0x78};
+    CHECK(read_be16(bytes, 2) == 0x1234);
+    CHECK(read_be32(bytes, 2) == 0x12345678u);
+}