id3-image-rs/tests/test_processing.rs

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use std::env;
use std::fs;
use std::path::PathBuf;
use id3_image::*;
macro_rules! in_temp_dir {
($block:block) => {
let tmpdir = tempfile::tempdir().unwrap();
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env::set_current_dir(&tmpdir).unwrap();
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$block;
}
}
macro_rules! fixture {
($filename:expr) => {
let root_dir = &env::var("CARGO_MANIFEST_DIR").expect("$CARGO_MANIFEST_DIR");
let mut source_path = PathBuf::from(root_dir);
source_path.push("tests/fixtures");
source_path.push($filename);
fs::copy(source_path, $filename).unwrap();
}
}
#[test]
fn test_unsuccessful_image_embedding() {
in_temp_dir!({
fixture!("attempt_1_no_image.mp3");
fixture!("attempt_1.jpg");
// Nonexistent files
assert!(embed_image("attempt_1_no_image.mp3", "nonexisting.jpg").is_err());
assert!(embed_image("nonexisting.mp3", "attempt_1.jpg").is_err());
assert!(embed_image("nonexisting.mp3", "nonexisting.jpg").is_err());
// Wrong kinds of files
assert!(embed_image("attempt_1.jpg", "attempt_1_no_image.mp3").is_err());
assert!(embed_image("attempt_1_no_image.mp3", "attempt_1_no_image.mp3").is_err());
assert!(embed_image("attempt_1.jpg", "attempt_1.jpg").is_err());
});
}
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#[test]
fn test_successful_jpeg_image_embedding() {
in_temp_dir!({
fixture!("attempt_1_no_image.mp3");
fixture!("attempt_1.jpg");
let tag = id3::Tag::read_from_path("attempt_1_no_image.mp3").unwrap();
assert!(tag.pictures().count() == 0);
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embed_image("attempt_1_no_image.mp3", "attempt_1.jpg").unwrap();
let tag = id3::Tag::read_from_path("attempt_1_no_image.mp3").unwrap();
assert!(tag.pictures().count() > 0);
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});
}
#[test]
fn test_successful_png_image_embedding() {
in_temp_dir!({
fixture!("attempt_1_no_image.mp3");
fixture!("attempt_1.png");
let tag = id3::Tag::read_from_path("attempt_1_no_image.mp3").unwrap();
assert!(tag.pictures().count() == 0);
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embed_image("attempt_1_no_image.mp3", "attempt_1.png").unwrap();
let tag = id3::Tag::read_from_path("attempt_1_no_image.mp3").unwrap();
assert!(tag.pictures().count() > 0);
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});
}
#[test]
fn test_successful_image_embedding_in_a_file_that_already_has_an_image() {
in_temp_dir!({
fixture!("attempt_1.mp3");
fixture!("attempt_1.jpg");
let tag = id3::Tag::read_from_path("attempt_1.mp3").unwrap();
assert!(tag.pictures().count() > 0);
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embed_image("attempt_1.mp3", "attempt_1.jpg").unwrap();
let tag = id3::Tag::read_from_path("attempt_1.mp3").unwrap();
assert!(tag.pictures().count() > 0);
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});
}
#[test]
fn test_remove_and_add_image() {
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in_temp_dir!({
fixture!("attempt_1.mp3");
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fixture!("attempt_1.jpg");
let tag = id3::Tag::read_from_path("attempt_1.mp3").unwrap();
assert!(tag.pictures().count() > 0);
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remove_images("attempt_1.mp3").unwrap();
let tag = id3::Tag::read_from_path("attempt_1.mp3").unwrap();
assert!(tag.pictures().count() == 0);
embed_image("attempt_1.mp3", "attempt_1.jpg").unwrap();
let tag = id3::Tag::read_from_path("attempt_1.mp3").unwrap();
assert!(tag.pictures().count() > 0);
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});
}