SERVER-470 add runParallelTests helper, improve insert test

1 files changed, 34 insertions, 0 deletions

diff --git a/jstests/parallel/insert.js b/jstests/parallel/insert.js
new file mode 100644
index 00000000000..cc3e8c8281f
--- /dev/null
+++ b/jstests/parallel/insert.js
@@ -0,0 +1,34 @@
+// perform inserts in parallel from several clients
+
+f = db.jstests_parallel_basic;
+f.drop();
+f.ensureIndex( {me:1} );
+
+// would be nice to configure and log a random seed so we can reproduce
+// behavior.  Seems like that's impossible using Math.random(), though :(
+
+expTimeout = function( mean ) {
+    return -Math.log( Math.random() ) * mean;
+}
+
+test = function( mean, me ) {
+    var m = new Mongo( db.getMongo().host );
+    var t = m.getDB( "test" ).jstests_parallel_basic;
+    for( var i = 0; i < 1000; ++i ) {
+        sleep( expTimeout( mean ) );
+        if ( i % 50 == 0 ) {
+            assert.eq( i, t.count( { who:me } ) );
+            print( me + " " + i );
+        }
+        t.save( { i:i, who:me } );
+    }
+}
+
+argvs = Array();
+for( i = 0; i < 10; ++i ) {
+    argvs.push( [ Math.random() * 20, i ] );
+}
+
+runParallelTests( test, argvs, "one or more tests failed" );
+
+assert( f.validate().valid );