1 files changed, 84 insertions, 0 deletions
diff --git a/test/std/experimental/filesystem/fs.op.funcs/fs.op.is_fifo/is_fifo.pass.cpp b/test/std/experimental/filesystem/fs.op.funcs/fs.op.is_fifo/is_fifo.pass.cpp
new file mode 100644
index 000000000000..44892f65d86e
--- /dev/null
+++ b/test/std/experimental/filesystem/fs.op.funcs/fs.op.is_fifo/is_fifo.pass.cpp
@@ -0,0 +1,84 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03
+
+// <experimental/filesystem>
+
+// bool is_fifo(file_status s) noexcept
+// bool is_fifo(path const& p);
+// bool is_fifo(path const& p, std::error_code& ec) noexcept;
+
+#include <experimental/filesystem>
+#include <type_traits>
+#include <cassert>
+
+#include "test_macros.h"
+#include "rapid-cxx-test.hpp"
+#include "filesystem_test_helper.hpp"
+
+using namespace std::experimental::filesystem;
+
+TEST_SUITE(is_fifo_test_suite)
+
+TEST_CASE(signature_test)
+{
+    file_status s; ((void)s);
+    const path p; ((void)p);
+    std::error_code ec; ((void)ec);
+    ASSERT_NOEXCEPT(is_fifo(s));
+    ASSERT_NOEXCEPT(is_fifo(p, ec));
+    ASSERT_NOT_NOEXCEPT(is_fifo(p));
+}
+
+TEST_CASE(is_fifo_status_test)
+{
+    struct TestCase {
+        file_type type;
+        bool expect;
+    };
+    const TestCase testCases[] = {
+        {file_type::none, false},
+        {file_type::not_found, false},
+        {file_type::regular, false},
+        {file_type::directory, false},
+        {file_type::symlink, false},
+        {file_type::block, false},
+        {file_type::character, false},
+        {file_type::fifo, true},
+        {file_type::socket, false},
+        {file_type::unknown, false}
+    };
+    for (auto& TC : testCases) {
+        file_status s(TC.type);
+        TEST_CHECK(is_fifo(s) == TC.expect);
+    }
+}
+
+TEST_CASE(test_exist_not_found)
+{
+    const path p = StaticEnv::DNE;
+    TEST_CHECK(is_fifo(p) == false);
+}
+
+TEST_CASE(test_is_fifo_fails)
+{
+    scoped_test_env env;
+    const path dir = env.create_dir("dir");
+    const path file = env.create_file("dir/file", 42);
+    permissions(dir, perms::none);
+
+    std::error_code ec;
+    TEST_CHECK(is_fifo(file, ec) == false);
+    TEST_CHECK(ec);
+
+    TEST_CHECK_THROW(filesystem_error, is_fifo(file));
+}
+
+TEST_SUITE_END()