Tests moving a randomly generated image.
function testNormal() {
// Pick a file for testing.
$file = entity_create('file', (array) current($this
->drupalGetTestFiles('image')));
// Create derivative image.
$styles = entity_load_multiple('image_style');
$style = image_style_load(key($styles));
$derivative_uri = image_style_path($style
->id(), $file->uri);
image_style_create_derivative($style, $file->uri, $derivative_uri);
// Check if derivative image exists.
$this
->assertTrue(file_exists($derivative_uri), 'Make sure derivative image is generated successfully.');
// Clone the object so we don't have to worry about the function changing
// our reference copy.
$desired_filepath = 'public://' . $this
->randomName();
$result = file_move(clone $file, $desired_filepath, FILE_EXISTS_ERROR);
// Check if image has been moved.
$this
->assertTrue(file_exists($result->uri), 'Make sure image is moved successfully.');
// Check if derivative image has been flushed.
$this
->assertFalse(file_exists($derivative_uri), 'Make sure derivative image has been flushed.');
}