test: wait for db to unlock first.

test/each.test.js

@@ -11,15 +11,18 @@ describe('each', function() {
         var total = 100000;
         var retrieved = 0;
         
+        db.wait(function() {
             db.each('SELECT id, txt FROM foo LIMIT 0, ?', total, function(err, row) {
                 if (err) throw err;
                 retrieved++;
             });
 
-        db.wait(setTimeout(function() {
+            db.wait(function() {
                 assert.equal(retrieved, total, "Only retrieved " + retrieved + " out of " + total + " rows.");
                 done();
-        }, 400));
+            });
+        });
+
     });
 
     it('Statement#each with complete callback', function(done) {