### Empty

{

	type => "tfn",

	name => "lowercase",

	input => "",

	output => "",

	ret => 0,

},

### Nothing

{

	type => "tfn",

	name => "lowercase",

	input => "testcase",

	output => "testcase",

	ret => 0,

},

{

	type => "tfn",

	name => "lowercase",

	input => "test\0case",

	output => "test\0case",

	ret => 0,

},

### Basic

{

	type => "tfn",

	name => "lowercase",

	input => "TestCase",

	output => "testcase",

	ret => 1,

},

{

	type => "tfn",

	name => "lowercase",

	input => "Test\0Case",

	output => "test\0case",

	ret => 1,

},