test fix

tests/database/keys.js

@@ -7,6 +7,9 @@ var	async = require('async'),
 
 describe('Key methods', function() {
 
+	beforeEach(function(done) {
+		db.set('testKey', 'testValue', done);
+	});
 
 	it('should set a key without error', function(done) {
 		db.set('testKey', 'testValue', function(err) {
@@ -56,13 +59,17 @@ describe('Key methods', function() {
 		});
 	});
 
-	it('should return false if key does not exist or was deleted', function(done) {
+	it('should return false if key was deleted', function(done) {
+		db.delete('testKey', function(err) {
+			assert.equal(err, null);
+			assert.equal(arguments.length, 1);
 			db.exists('testKey', function(err, exists) {
 				assert.equal(err, null);
 				assert.strictEqual(exists, false);
 				done();
 			});
 		});
+	});
 
 	it('should delete all keys passed in', function(done) {
 		async.parallel([