Batch test and fix skipping test during cleanup phase

tests/batch/write-0001.phpt

@@ -0,0 +1,38 @@
+--TEST--
+MongoDB\Write\Batch: #001 Variety Batch
+--SKIPIF--
+<?php require "tests/utils/basic-skipif.inc"?>
+--FILE--
+<?php 
+require_once "tests/utils/basic.inc";
+
+$mc = new MongoDB\Manager(MONGODB_URI);
+
+$batch = new MongoDB\Write\Batch;
+
+$batch->insert(array("my" => "value"));
+$batch->insert(array("my" => "value", "foo" => "bar"));
+$batch->insert(array("my" => "value", "foo" => "bar"));
+
+$batch->delete(array("my" => "value", "foo" => "bar"), 1);
+
+$batch->update(array("foo" => "bar"), array('$set' => array("foo" => "baz")), 1, 1);
+
+$retval = $mc->executeWrite(NS, $batch);
+
+printf("Inserted: %d\n", getInsertCount($retval));
+printf("Deleted: %d\n", getRemovedCount($retval));
+printf("Updated: %d\n", getModifiedCount($retval));
+printf("Upserted: %d\n", getUpsertedCount($retval));
+foreach(getWriteErrors($retval) as $error) {
+    printf("WriteErrors: %", $error);
+}
+?>
+===DONE===
+<?php exit(0); ?>
+--EXPECT--
+Inserted: 3
+Deleted: 1
+Updated: 1
+Upserted: 0
+===DONE===

tests/utils/basic.inc

@@ -72,11 +72,34 @@ function CLEANUP() {
         $mc = new MongoDB\Manager(MONGODB_CLEANUP_URI);
         $cmd = new MongoDB\Command\Command(array("drop" => COLLECTION_NAME));
         $rp = new MongoDB\ReadPreference(MongoDB\ReadPreference::RP_PRIMARY);
-        $mc->executeCommand(DATABASE_NAME, $cmd, $rp);
+        try {
+            $mc->executeCommand(DATABASE_NAME, $cmd, $rp);
+        } catch(Exception $e) {
+            /* ns not found */
+            if ($e->getCode() == 59) {
+                continue;
+            }
+            throw $e;
+        }
     } catch(Exception $e) {
         echo "skip " . $e->getCode(), ": ", $e->getMessage();
     }
 }
+function getInsertCount($retval) {
+    return $retval["nInserted"];
+}
+function getModifiedCount($retval) {
+    return $retval["nModified"];
+}
+function getRemovedCount($retval) {
+    return $retval["nRemoved"];
+}
+function getUpsertedCount($retval) {
+    return $retval["nUpserted"];
+}
+function getWriteErrors($retval) {
+    return $retval["writeErrors"];
+}
 
 function def($arr) {
     foreach($arr as $const => $value) {