Move test into test/std subdirectory.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@224658 91177308-0d34-0410-b5e6-96231b3b80d8

test/std/numerics/rand/rand.device/ctor.pass.cpp

@@ -0,0 +1,85 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// class random_device;
+
+// explicit random_device(const string& token = implementation-defined);
+
+// For the following ctors, the standard states: "The semantics and default
+// value of the token parameter are implementation-defined". Implementations
+// therefore aren't required to accept any string, but the default shouldn't
+// throw.
+
+#include <random>
+#include <cassert>
+#include <unistd.h>
+
+bool is_valid_random_device(const std::string &token) {
+#if defined(_WIN32)
+  return true;
+#elif defined(_LIBCPP_USING_NACL_RANDOM)
+  return token == "/dev/urandom";
+#else  // !defined(_WIN32) && !defined(_LIBCPP_USING_NACL_RANDOM)
+  // Not an exhaustive list: they're the only tokens that are tested below.
+  return token == "/dev/urandom" || token == "/dev/random";
+#endif // defined(_WIN32) || defined(_LIBCPP_USING_NACL_RANDOM)
+}
+
+void check_random_device_valid(const std::string &token) {
+  std::random_device r(token);
+}
+
+void check_random_device_invalid(const std::string &token) {
+  try {
+    std::random_device r(token);
+    assert(false);
+  } catch (const std::system_error &e) {
+  }
+}
+
+int main() {
+  { std::random_device r; }
+
+  {
+    int ec;
+    ec = close(STDIN_FILENO);
+    assert(!ec);
+    ec = close(STDOUT_FILENO);
+    assert(!ec);
+    ec = close(STDERR_FILENO);
+    assert(!ec);
+    std::random_device r;
+  }
+
+  {
+    std::string token = "wrong file";
+    if (is_valid_random_device(token))
+      check_random_device_valid(token);
+    else
+      check_random_device_invalid(token);
+  }
+
+  {
+    std::string token = "/dev/urandom";
+    if (is_valid_random_device(token))
+      check_random_device_valid(token);
+    else
+      check_random_device_invalid(token);
+  }
+
+  {
+    std::string token = "/dev/random";
+    if (is_valid_random_device(token))
+      check_random_device_valid(token);
+    else
+      check_random_device_invalid(token);
+  }
+}

test/std/numerics/rand/rand.device/entropy.pass.cpp

@@ -0,0 +1,23 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// class random_device;
+
+// double entropy() const;
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+    std::random_device r;
+    double e = r.entropy();
+}

test/std/numerics/rand/rand.device/eval.pass.cpp

@@ -0,0 +1,35 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// class random_device;
+
+// result_type operator()();
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+    {
+        std::random_device r;
+        std::random_device::result_type e = r();
+    }
+
+    try
+    {
+        std::random_device r("/dev/null");
+        r();
+        assert(false);
+    }
+    catch (const std::system_error& e)
+    {
+    }
+}