public void Writes_specified_connectionString_to_an_application_configuration_file()
        {
            var writer = new ApplicationConfigurationWriter(TestConfigurationFileName);
            writer.WriteConnectionString(TestKey, TestValue);

            Assert.IsTrue(ConnectionStringNameAndValueExist(TestKey, TestValue));
        }
        public void Removes_specified_connectionString_from_an_application_configuration_file()
        {
            File.WriteAllText(TestConfigurationFileName, TestConfigurationFileContents);

            var writer = new ApplicationConfigurationWriter(TestConfigurationFileName);
            writer.RemoveSetting(TestKey);

            Assert.IsFalse(ConnectionStringNameAndValueExist(TestKey, TestValue));
        }