more refactoring; add stat()

1 files changed, 59 insertions, 0 deletions

diff --git a/nihil.posix/stat.test.cc b/nihil.posix/stat.test.cc
new file mode 100644
index 0000000..cf1e29c
--- /dev/null
+++ b/nihil.posix/stat.test.cc
@@ -0,0 +1,59 @@
+// This source code is released into the public domain.
+
+import nihil.error;
+import nihil.posix;
+
+#include <sys/stat.h>
+
+#include <catch2/catch_test_macros.hpp>
+
+namespace {
+
+SCENARIO("nihil::stat() on an existing file")
+{
+	GIVEN("A call to stat() on /etc/passwd")
+	{
+		auto sb = nihil::stat("/etc/passwd");
+
+		THEN("The returned struct is correct")
+		{
+			REQUIRE(sb);
+			REQUIRE(S_ISREG(sb->st_mode));
+		}
+	}
+}
+
+SCENARIO("nihil::stat() on a non-existent file")
+{
+	GIVEN("A call to stat() on /nonesuchfile")
+	{
+		auto sb = nihil::stat("/nonesuchfile");
+
+		THEN("std::errc::no_such_file_or_directory is returned")
+		{
+			REQUIRE(!sb);
+			REQUIRE(sb.error() == std::errc::no_such_file_or_directory);
+		}
+	}
+}
+
+SCENARIO("nihil::stat() on an open file descriptor")
+{
+	GIVEN("An fd referring to /etc/password")
+	{
+		auto fd = nihil::open("/etc/passwd", nihil::open_read).value();
+
+		WHEN("nihil::stat() is called on the fd")
+		{
+			auto sb = nihil::stat(fd);
+
+			THEN("The returned struct is correct")
+			{
+				REQUIRE(sb);
+				REQUIRE(S_ISREG(sb->st_mode));
+			}
+		}
+	}
+}
+
+} // anonymous namespace