diff --git a/test/functional/pdo_sqlsrv/pdo_678_conn_resiliency_pooling.phpt b/test/functional/pdo_sqlsrv/pdo_678_conn_resiliency_pooling.phpt
new file mode 100644
index 00000000..080e1fd2
--- /dev/null
+++ b/test/functional/pdo_sqlsrv/pdo_678_conn_resiliency_pooling.phpt
@@ -0,0 +1,136 @@
+--TEST--
+GitHub issue #678 - Idle Connection Resiliency doesn't work with Connection Pooling
+--DESCRIPTION--
+Verifies that the issue has been fixed with ODBC 17.1
+--ENV--
+PHPT_EXEC=true
+--SKIPIF--
+<?php require('skipif_protocol_not_tcp.inc');
+      require('skipif_version_less_than_2k14.inc'); ?>
+--FILE--
+<?php
+require_once("MsCommon_mid-refactor.inc");
+
+function checkODBCVersion($conn)
+{
+    $msodbcsql_ver = $conn->getAttribute(PDO::ATTR_CLIENT_VERSION)["DriverVer"];
+    $vers = explode(".", $msodbcsql_ver);
+
+    if ($vers[0] >= 17 && $vers[1] > 0){
+        return true;
+    } else {
+        return false;
+    }
+}
+
+function breakConnection($conn, $conn_break)
+{
+    try {
+        $stmt1 = $conn->query("SELECT @@SPID");
+        $obj = $stmt1->fetch(PDO::FETCH_NUM);
+        $spid = $obj[0];
+
+        $stmt2 = $conn_break->prepare("KILL $spid");
+        $stmt2->execute();
+        sleep(1);
+    } catch (Exception $e) {
+        print_r($e->getMessage());
+    }
+}
+
+// create a connection for create the table and breaking other connections
+$conn_break = connect();
+
+if (! checkODBCVersion($conn_break)) {
+    echo "Done\n";
+    return;
+}
+
+$tableName = "test_connres";
+dropTable($conn_break, $tableName);
+
+try {
+
+    $sql = "CREATE TABLE $tableName (c1 INT, c2 VARCHAR(40))";
+    $stmt = $conn_break->query($sql);
+
+    $sql = "INSERT INTO $tableName VALUES (?, ?)";
+    $stmt = $conn_break->prepare($sql);
+    for ($t = 200; $t < 209; $t++) {
+        $ts = substr(sha1($t), 0, 5);
+        $stmt->bindValue(1, $t);
+        $stmt->bindValue(2, $ts);
+        $stmt->execute();
+    }
+} catch (PDOException $e) {
+    echo "Could not connect.\n";
+    print_r($e->getMessage());
+}
+
+// first connection
+$connectionInfo = "ConnectRetryCount = 10; ConnectRetryInterval = 10; ConnectionPooling = 1;";
+try {
+    $conn = connect($connectionInfo, array(), PDO::ERRMODE_EXCEPTION, true);
+} catch (PDOException $e) {
+    echo "Error in connection 1.\n";
+    print_r($e->getMessage());
+}
+
+breakConnection($conn, $conn_break);
+
+$query = "SELECT * FROM $tableName";
+try {
+    $stmt = $conn->prepare($query, array(PDO::ATTR_CURSOR => PDO::CURSOR_SCROLL, PDO::SQLSRV_ATTR_CURSOR_SCROLL_TYPE => PDO::SQLSRV_CURSOR_BUFFERED));
+    if (!$stmt || !$stmt->execute()) {
+        echo "Statement 1 failed.\n";
+    }
+    
+    $row_count = $stmt->rowCount();
+    if ($row_count != 9) {
+        echo "Unexpected $row_count rows in result set.\n";
+    }
+} catch (PDOException $e) {
+    echo "Error executing query with connection 1.\n";
+    print_r($e->getMessage());
+}
+
+unset($stmt);
+unset($conn);
+
+// second connection
+try {
+    $conn = connect($connectionInfo, array(), PDO::ERRMODE_EXCEPTION, true);
+} catch (PDOException $e) {
+    echo "Error in connection 2.\n";
+    print_r($e->getMessage());
+}
+
+breakConnection($conn, $conn_break);
+
+// would connection be able to resume here if connection pooling is enabled?
+try {
+    $stmt2 = $conn->query($query);
+    if (!$stmt2) {
+        echo "Statement 2 failed.\n";
+    }
+
+    $col_count = $stmt2->columnCount();
+    if ($col_count != 2) {
+        echo "Unexpected $col_count columns in result set.\n";
+    }
+} catch (PDOException $e) {
+    echo "Error executing query with connection 2.\n";
+    print_r($e->getMessage());
+}
+
+dropTable($conn, $tableName);
+
+echo "Done\n";
+
+unset($stmt2);
+unset($conn);
+unset($conn_break);
+
+?>
+--EXPECT--
+Done
\ No newline at end of file
diff --git a/test/functional/sqlsrv/srv_678_conn_resiliency_pooling.phpt b/test/functional/sqlsrv/srv_678_conn_resiliency_pooling.phpt
new file mode 100644
index 00000000..9fd2a1ea
--- /dev/null
+++ b/test/functional/sqlsrv/srv_678_conn_resiliency_pooling.phpt
@@ -0,0 +1,112 @@
+--TEST--
+GitHub issue #678 - Idle Connection Resiliency doesn't work with Connection Pooling
+--DESCRIPTION--
+Verifies that the issue has been fixed with ODBC 17.1
+--ENV--
+PHPT_EXEC=true
+--SKIPIF--
+<?php require('skipif_protocol_not_tcp.inc');
+      require('skipif_versions_old.inc'); ?>
+--FILE--
+<?php
+require_once("MsCommon.inc");
+
+function checkODBCVersion($conn)
+{
+    $msodbcsql_ver = sqlsrv_client_info($conn)['DriverVer'];
+    $vers = explode(".", $msodbcsql_ver);
+
+    if ($vers[0] >= 17 && $vers[1] > 0){
+        return true;
+    } else {
+        return false;
+    }
+}
+
+function breakConnection($conn, $conn_break)
+{
+    $stmt1 = sqlsrv_query($conn, "SELECT @@SPID");
+    if (sqlsrv_fetch($stmt1)) {
+        $spid=sqlsrv_get_field($stmt1, 0);
+    }
+
+    $stmt2 = sqlsrv_prepare($conn_break, "KILL ".$spid);
+    sqlsrv_execute($stmt2);
+    sleep(1);
+}
+
+// create a connection for create the table and breaking other connections
+$conn_break = sqlsrv_connect($server, array("Database"=>$database, "UID"=>$uid, "PWD"=>$pwd));
+
+if (! checkODBCVersion($conn_break)) {
+    echo "Done\n";
+    return;
+}
+
+$tableName = "test_connres";
+
+dropTable($conn_break, $tableName);
+
+$sql = "CREATE TABLE $tableName (c1 INT, c2 VARCHAR(40))";
+$stmt = sqlsrv_query($conn_break, $sql);
+
+$sql = "INSERT INTO $tableName VALUES (?, ?)";
+    for ($t = 200; $t < 209; $t++) {
+        $ts = substr(sha1($t), 0, 5);
+        $params = array($t, $ts);
+        $stmt = sqlsrv_prepare($conn_break, $sql, $params);
+        sqlsrv_execute($stmt);
+    }
+
+// first connection
+$connectionInfo = array("Database"=>$database, "UID"=>$uid, "PWD"=>$pwd, 
+                        "ConnectionPooling"=>true, "ConnectRetryCount"=>10,
+                        "ConnectRetryInterval"=>10 );
+                         
+$conn = sqlsrv_connect($server, $connectionInfo);
+
+breakConnection($conn, $conn_break);
+
+$query = "SELECT * FROM $tableName";
+$stmt = sqlsrv_query($conn, $query, array(), array("Scrollable"=>"buffered"));
+if ($stmt === false) {
+    echo "Error in connection 1.\n";
+    print_r(sqlsrv_errors());
+} else {
+    $row_count = sqlsrv_num_rows($stmt);
+    if ($row_count != 9) {
+        echo "Unexpected $row_count rows in result set.\n";
+    }
+}
+
+sqlsrv_free_stmt($stmt);
+sqlsrv_close($conn);
+
+// second connection
+$conn = sqlsrv_connect($server, $connectionInfo);
+
+breakConnection($conn, $conn_break);
+
+// would connection be able to resume here if connection pooling is enabled?
+$stmt2 = sqlsrv_query($conn, $query);
+if ($stmt2 === false) {
+    echo "Error in connection 2.\n";
+    print_r(sqlsrv_errors());
+} else {
+    $num_fields = sqlsrv_num_fields($stmt2);
+    if ($num_fields != 2) {
+        echo "Unexpected $num_fields columns in result set.\n";
+    }
+}
+
+dropTable($conn, $tableName);
+
+echo "Done\n";
+
+sqlsrv_free_stmt($stmt2);
+sqlsrv_close($conn);
+sqlsrv_close($conn_break);
+
+?>
+--EXPECT--
+Done
\ No newline at end of file