76 lines
2.7 KiB
Rust
76 lines
2.7 KiB
Rust
extern crate tiff;
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use tiff::ColorType;
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use tiff::decoder::{Decoder, DecodingResult, ifd::Tag, ifd::Value};
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use std::fs::File;
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#[test]
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fn test_gray_u8()
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{
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let img_file = File::open("./tests/images/minisblack-1c-8b.tiff").expect("Cannot find test image!");
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let mut decoder = Decoder::new(img_file).expect("Cannot create decoder");
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assert_eq!(decoder.colortype().unwrap(), ColorType::Gray(8));
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let img_res = decoder.read_image();
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assert!(img_res.is_ok());
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}
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#[test]
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fn test_rgb_u8()
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{
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let img_file = File::open("./tests/images/rgb-3c-8b.tiff").expect("Cannot find test image!");
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let mut decoder = Decoder::new(img_file).expect("Cannot create decoder");
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assert_eq!(decoder.colortype().unwrap(), ColorType::RGB(8));
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let img_res = decoder.read_image();
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assert!(img_res.is_ok());
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}
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#[test]
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fn test_gray_u16()
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{
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let img_file = File::open("./tests/images/minisblack-1c-16b.tiff").expect("Cannot find test image!");
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let mut decoder = Decoder::new(img_file).expect("Cannot create decoder");
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assert_eq!(decoder.colortype().unwrap(), ColorType::Gray(16));
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let img_res = decoder.read_image();
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assert!(img_res.is_ok());
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}
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#[test]
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fn test_rgb_u16()
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{
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let img_file = File::open("./tests/images/rgb-3c-16b.tiff").expect("Cannot find test image!");
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let mut decoder = Decoder::new(img_file).expect("Cannot create decoder");
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assert_eq!(decoder.colortype().unwrap(), ColorType::RGB(16));
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let img_res = decoder.read_image();
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assert!(img_res.is_ok());
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}
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#[test]
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fn test_string_tags()
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{
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// these files have null-terminated strings for their Software tag. One has extra bytes after
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// the null byte, so we check both to ensure that we're truncating properly
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let filenames = vec!["minisblack-1c-16b.tiff", "rgb-3c-16b.tiff"];
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for filename in filenames.iter() {
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let path = format!("./tests/images/{}", filename);
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let img_file = File::open(path).expect("can't open file");
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let mut decoder = Decoder::new(img_file).expect("Cannot create decoder");
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let software= decoder.get_tag(Tag::Software).unwrap();
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match software {
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Value::Ascii(s) => assert_eq!(s, String::from("GraphicsMagick 1.2 unreleased Q16 http://www.GraphicsMagick.org/")),
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_ => assert!(false)
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};
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}
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}
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// TODO: GrayA support
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//#[test]
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//fn test_gray_alpha_u8()
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//{
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//let img_file = File::open("./tests/images/minisblack-2c-8b-alpha.tiff").expect("Cannot find test image!");
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//let mut decoder = Decoder::new(img_file).expect("Cannot create decoder");
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//assert_eq!(decoder.colortype().unwrap(), ColorType::GrayA(8));
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//let img_res = decoder.read_image();
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//assert!(img_res.is_ok());
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//}
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