Switch SocketAddressTest to use TemporaryFile instead of mkstemp

Summary: Switch from mkstemp to the slightly more portable `folly::test::TemporaryFile`

Reviewed By: jsedgwick

Differential Revision: D3890411

fbshipit-source-id: e98d1e3a5adae92af1bb36f6213b194f633fab0f

folly/test/SocketAddressTest.cpp

@@ -20,9 +20,9 @@
 #include <sstream>
 #include <system_error>
 
+#include <folly/experimental/TestUtil.h>
 #include <folly/portability/GTest.h>
 #include <folly/portability/Sockets.h>
-#include <folly/portability/Stdlib.h>
 #include <folly/test/SocketAddressTestHelper.h>
 
 using namespace boost;
@@ -31,6 +31,7 @@ using std::cerr;
 using std::endl;
 using folly::SocketAddress;
 using folly::SocketAddressTestHelper;
+using folly::test::TemporaryDirectory;
 
 namespace fsp = folly::portability::sockets;
 
@@ -803,19 +804,9 @@ TEST(SocketAddress, SetFromSocketUnixAbstract) {
 
 TEST(SocketAddress, SetFromSocketUnixExplicit) {
   // Pick two temporary path names.
-  // We use mkstemp() just to avoid warnings about mktemp,
-  // but we need to remove the file to let the socket code bind to it.
-  char serverPath[] = "/tmp/SocketAddressTest.server.XXXXXX";
-  int serverPathFd = mkstemp(serverPath);
-  EXPECT_GE(serverPathFd, 0);
-  char clientPath[] = "/tmp/SocketAddressTest.client.XXXXXX";
-  int clientPathFd = mkstemp(clientPath);
-  EXPECT_GE(clientPathFd, 0);
-
-  int rc = unlink(serverPath);
-  EXPECT_EQ(rc, 0);
-  rc = unlink(clientPath);
-  EXPECT_EQ(rc, 0);
+  TemporaryDirectory tempDirectory("SocketAddressTest");
+  std::string serverPath = (tempDirectory.path() / "server").string();
+  std::string clientPath = (tempDirectory.path() / "client").string();
 
   SocketAddress serverBindAddr;
   SocketAddress clientBindAddr;
@@ -826,8 +817,8 @@ TEST(SocketAddress, SetFromSocketUnixExplicit) {
   SocketAddress clientAddr;
   SocketAddress clientPeerAddr;
   try {
-    serverBindAddr.setFromPath(serverPath);
-    clientBindAddr.setFromPath(clientPath);
+    serverBindAddr.setFromPath(serverPath.c_str());
+    clientBindAddr.setFromPath(clientPath.c_str());
 
     testSetFromSocket(&serverBindAddr, &clientBindAddr,
                       &listenAddr, &acceptAddr,
@@ -835,12 +826,12 @@ TEST(SocketAddress, SetFromSocketUnixExplicit) {
                       &clientAddr, &clientPeerAddr);
   } catch (...) {
     // Remove the socket files after we are done
-    unlink(serverPath);
-    unlink(clientPath);
+    unlink(serverPath.c_str());
+    unlink(clientPath.c_str());
     throw;
   }
-  unlink(serverPath);
-  unlink(clientPath);
+  unlink(serverPath.c_str());
+  unlink(clientPath.c_str());
 
   // The server socket's local address should be the same as the listen
   // address.
@@ -857,11 +848,8 @@ TEST(SocketAddress, SetFromSocketUnixExplicit) {
 
 TEST(SocketAddress, SetFromSocketUnixAnonymous) {
   // Test an anonymous client talking to a fixed-path unix socket.
-  char serverPath[] = "/tmp/SocketAddressTest.server.XXXXXX";
-  int serverPathFd = mkstemp(serverPath);
-  EXPECT_GE(serverPathFd, 0);
-  int rc = unlink(serverPath);
-  EXPECT_EQ(rc, 0);
+  TemporaryDirectory tempDirectory("SocketAddressTest");
+  std::string serverPath = (tempDirectory.path() / "server").string();
 
   SocketAddress serverBindAddr;
   SocketAddress listenAddr;
@@ -871,7 +859,7 @@ TEST(SocketAddress, SetFromSocketUnixAnonymous) {
   SocketAddress clientAddr;
   SocketAddress clientPeerAddr;
   try {
-    serverBindAddr.setFromPath(serverPath);
+    serverBindAddr.setFromPath(serverPath.c_str());
 
     testSetFromSocket(&serverBindAddr, nullptr,
                       &listenAddr, &acceptAddr,
@@ -879,10 +867,10 @@ TEST(SocketAddress, SetFromSocketUnixAnonymous) {
                       &clientAddr, &clientPeerAddr);
   } catch (...) {
     // Remove the socket file after we are done
-    unlink(serverPath);
+    unlink(serverPath.c_str());
     throw;
   }
-  unlink(serverPath);
+  unlink(serverPath.c_str());
 
   // The server socket's local address should be the same as the listen
   // address.