Function termimage::ops::guess_format

pub fn guess_format(file: &(String, PathBuf)) -> Result<ImageFormat, Error>

Guess the image format from its extension or magic.

Examples

Correct:

assert_eq!(guess_format(&(String::new(), PathBuf::from("img.png"))), Ok(ImageFormat::Png));
assert_eq!(guess_format(&(String::new(), PathBuf::from("img.jpg"))), Ok(ImageFormat::Jpeg));
assert_eq!(guess_format(&(String::new(), PathBuf::from("img.gif"))), Ok(ImageFormat::Gif));
assert_eq!(guess_format(&(String::new(), PathBuf::from("img.bmp"))), Ok(ImageFormat::Bmp));
assert_eq!(guess_format(&(String::new(), PathBuf::from("img.ico"))), Ok(ImageFormat::Ico));

Incorrect:

assert_eq!(guess_format(&("src/ops.rs".to_string(), PathBuf::from("src/ops/mod.rs"))),
Err(Error::GuessingFormatFailed("src/ops.rs".to_string())));