CSHARP-574: SecondaryAcceptableLatency was missing from MongoUrl.

Author: rstam

Driver/Core/MongoUrl.cs

@@ -203,6 +203,15 @@ public SafeMode SafeMode
             get { return _serverSettings.SafeMode; }
         }
 
+        /// <summary>
+        /// Gets the acceptable latency for considering a replica set member for inclusion in load balancing
+        /// when using a read preference of Secondary, SecondaryPreferred, and Nearest.
+        /// </summary>
+        public TimeSpan SecondaryAcceptableLatency
+        {
+            get { return _serverSettings.SecondaryAcceptableLatency; }
+        }
+
         /// <summary>
         /// Gets the address of the server (see also Servers if using more than one address).
         /// </summary>

DriverUnitTests/Core/MongoUrlTests.cs

@@ -46,6 +46,7 @@ public void TestDefaults()
             Assert.AreEqual(MongoDefaults.MaxConnectionPoolSize, url.MaxConnectionPoolSize);
             Assert.AreEqual(null, url.ReplicaSetName);
             Assert.AreEqual(SafeMode.False, url.SafeMode);
+            Assert.AreEqual(MongoDefaults.SecondaryAcceptableLatency, url.SecondaryAcceptableLatency);
 #pragma warning disable 618
             Assert.AreEqual(false, url.SlaveOk);
 #pragma warning restore
@@ -380,6 +381,15 @@ public void TestSafeModeTrueFSyncTrueW2WTimeout()
             Assert.AreEqual(connectionString, url.ToString());
         }
 
+        [Test]
+        public void TestSecondaryAcceptableLatency()
+        {
+            string connectionString = "mongodb://localhost/?secondaryAcceptableLatency=12s";
+            MongoUrl url = new MongoUrl(connectionString);
+            Assert.AreEqual(TimeSpan.FromSeconds(12), url.SecondaryAcceptableLatency);
+            Assert.AreEqual(connectionString, url.ToString());
+        }
+
         [Test]
         public void TestSlaveOkFalse()
         {
@@ -463,7 +473,7 @@ public void TestWaitQueueTimeout()
         [Test]
         public void TestAll()
         {
-            string connectionString = "mongodb://localhost/?connect=replicaSet;replicaSet=name;slaveOk=true;safe=true;fsync=true;w=2;wtimeout=2s;uuidRepresentation=PythonLegacy";
+            string connectionString = "mongodb://localhost/?connect=replicaSet;replicaSet=name;slaveOk=true;safe=true;fsync=true;w=2;wtimeout=2s;secondaryAcceptableLatency=12s;uuidRepresentation=PythonLegacy";
             MongoUrl url = new MongoUrl(connectionString);
             Assert.IsNull(url.DefaultCredentials);
             Assert.AreEqual(1, url.Servers.Count());
@@ -474,6 +484,7 @@ public void TestAll()
             Assert.AreEqual("name", url.ReplicaSetName);
             Assert.AreEqual(GuidRepresentation.PythonLegacy, url.GuidRepresentation);
             Assert.AreEqual(SafeMode.Create(true, true, 2, TimeSpan.FromSeconds(2)), url.SafeMode);
+            Assert.AreEqual(TimeSpan.FromSeconds(12), url.SecondaryAcceptableLatency);
 #pragma warning disable 618
             Assert.AreEqual(true, url.SlaveOk);
 #pragma warning restore