Add ability to reuse address in chrome.sockets.udp

extensions/test/data/sockets_udp/api/background.js

Index: extensions/test/data/sockets_udp/api/background.js
diff --git a/extensions/test/data/sockets_udp/api/background.js b/extensions/test/data/sockets_udp/api/background.js
index 8382292050250fea22aa4da9f0ae30bcf2e1fafb..a145e97aed3ebb2782b93290d4c7477b2899a33c 100644
--- a/extensions/test/data/sockets_udp/api/background.js
+++ b/extensions/test/data/sockets_udp/api/background.js
@@ -71,6 +71,70 @@ var testSocketCreation = function() {
   chrome.sockets.udp.create({}, onCreate);
 };
 
+var testSocketReusable = function() {
+  var address = '224.0.0.251';
+  var port = 5353;
+
+  var numSocketsCreated = 0;
+  var numSocketsExpected = 2;
+  var numSocketsClosed = 0;
+
+  var socketIds = [];
+
+  function onCreate(createInfo) {
+    function onGetInfoBeforeBind(info) {
+      if (info.localAddress || info.localPort) {
+        chrome.test.fail('Unconnected socket should not have local binding');
+      }
+
+      chrome.test.assertEq(true, info.addressReusable, 'Should be reusable');
+
+      chrome.sockets.udp.bind(createInfo.socketId, address, port, onBind);
+    }
+
+    function onBind(result) {
+      chrome.test.assertEq(0, result, 'Bind failed with error: ' + result);
+      chrome.sockets.udp.getInfo(createInfo.socketId, onGetInfoAfterBind);
+    }
+
+    function onGetInfoAfterBind(info) {
+      numSocketsCreated += 1;
+      chrome.test.assertEq(address, info.localAddress,
+        'Bound to wrong address');
+      chrome.test.assertEq(port, info.localPort, 'Bound to wrong port');
+      chrome.test.assertEq(true, info.addressReusable, 'Should be reusable');
+
+      if (numSocketsCreated < numSocketsExpected) {
+        // Bind again to ensure the address is reusable.
+        createAndBindToSharedAddress();
+      } else {
+        for (var i = 0; i < socketIds.length; i++) {
+          chrome.sockets.udp.close(socketIds[i], onClose);
+        }
+      }
+    }
+
+    function onClose() {
+      numSocketsClosed += 1;
+      if (numSocketsClosed == numSocketsExpected) {
+        chrome.test.succeed();
+      }
+    }
+
+    chrome.test.assertTrue(createInfo.socketId > 0);
+    socketIds.push(createInfo.socketId);
+
+    chrome.sockets.udp.getInfo(createInfo.socketId, onGetInfoBeforeBind);
+  }
+
+  function createAndBindToSharedAddress() {
+    chrome.sockets.udp.create({ "allowAddressReuse": true }, onCreate);
+  }
+
+  createAndBindToSharedAddress();
+};
+
+
 ///////////////////////////////////////////////////////////////////////////////
 // Test socket send/receive
 //
@@ -332,8 +396,8 @@ var onMessageReply = function(message) {
     chrome.test.runTests([ testMulticast ]);
   } else {
     console.log("Running udp tests");
-    chrome.test.runTests([ testSocketCreation, testSending, testSetPaused,
-                           testBroadcast ]);
+    chrome.test.runTests([ testSocketCreation, testSocketReusable, testSending,
+                           testSetPaused, testBroadcast ]);
   }
 };