sepated unit and integration tests

test-src/unit/webfuse/filesystem/test_openflags.cpp

@@ -0,0 +1,24 @@
+#include "webfuse/filesystem/openflags.hpp"
+#include <gtest/gtest.h>
+#include <fcntl.h>
+
+using webfuse::openflags;
+
+class openflags_test: public testing::TestWithParam<int> { };
+
+TEST_P(openflags_test, conversion)
+{
+    int const expected = GetParam();
+    auto flags = openflags::from_int(expected);
+    ASSERT_EQ(expected, flags.to_int());
+}
+
+INSTANTIATE_TEST_CASE_P(openflags_values, openflags_test,
+    testing::Values<>(
+        O_RDONLY, O_WRONLY, O_RDWR, O_CLOEXEC, O_CREAT,
+        O_DIRECT, O_DIRECTORY, O_EXCL, O_NOCTTY, O_NOFOLLOW,
+        O_TRUNC, O_ASYNC, O_LARGEFILE, O_NOATIME, O_NONBLOCK,
+        O_NDELAY, O_SYNC,
+        O_WRONLY | O_CREAT | O_TRUNC
+    )
+);