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106 lines
3.5 KiB
Rust
106 lines
3.5 KiB
Rust
use byte_me_lib::strings::{transform_filename, truncate_string};
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#[test]
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fn test_transform_filename() {
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// Test cases focusing on practical, readable outputs
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// 1. Short filenames should remain unchanged
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assert_eq!(transform_filename("test.mp4", 20), "test.mp4");
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assert_eq!(transform_filename("short.txt", 15), "short.txt");
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assert_eq!(transform_filename("a.b", 10), "a.b");
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// 2. No extension cases - preserve meaningful start and end
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assert_eq!(transform_filename("short_name", 15), "short_name");
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assert_eq!(
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transform_filename("very_long_document_name", 15),
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"ver...ment_name"
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);
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assert_eq!(
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transform_filename("medium_length_name", 13),
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"med...th_name"
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);
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// 3. Normal extension cases (preserving extension)
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assert_eq!(
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transform_filename("very_long_video_file_name.mp4", 18),
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"ver...ile_name.mp4"
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);
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assert_eq!(
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transform_filename("document_with_long_name.pdf", 15),
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"doc..._name.pdf"
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);
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assert_eq!(
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transform_filename("image_file_name.jpeg", 15),
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"ima...name.jpeg"
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);
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// 4. Numeric sequences (like user's example) - preserve start and end numbers
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assert_eq!(
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transform_filename("43509374693.TS.mp4", 15),
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"435...93.TS.mp4"
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);
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assert_eq!(
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transform_filename("20231201_video.mp4", 15),
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"202...video.mp4"
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);
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assert_eq!(transform_filename("file_v2.1.3.tar", 12), "fi...1.3.tar");
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// 5. Long extensions (treated as part of filename)
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assert_eq!(
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transform_filename("file.verylongextension", 15),
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"fil...extension"
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);
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assert_eq!(
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transform_filename("document.backup_old", 15),
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"doc...ackup_old"
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);
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// 6. Edge cases
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assert_eq!(transform_filename("", 10), "");
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assert_eq!(transform_filename("a", 0), "");
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assert_eq!(transform_filename("test", 4), "test");
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assert_eq!(transform_filename("test", 3), "tes");
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assert_eq!(transform_filename("ab", 2), "ab");
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// 7. Very short limits - graceful degradation
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assert_eq!(transform_filename("test.mp4", 8), "test.mp4");
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assert_eq!(transform_filename("verylongname", 8), "ve...ame");
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assert_eq!(transform_filename("test.mp4", 7), "tes.mp4");
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assert_eq!(transform_filename("hello.txt", 9), "hello.txt");
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// 8. Extension edge cases
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assert_eq!(transform_filename("file.", 10), "file.");
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assert_eq!(transform_filename(".hidden", 10), ".hidden");
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assert_eq!(transform_filename("test.a", 10), "test.a");
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// 9. Real-world examples
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assert_eq!(
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transform_filename("IMG_20231201_143022.jpg", 15),
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"IMG...43022.jpg"
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);
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assert_eq!(
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transform_filename("meeting_recording_final_v2.mp4", 20),
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"mee...g_final_v2.mp4"
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);
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assert_eq!(
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transform_filename("my document (copy).docx", 15),
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"my ...opy).docx"
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);
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}
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#[test]
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fn test_truncate_string() {
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// Test the helper function directly
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assert_eq!(truncate_string("hello", 10), "hello");
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assert_eq!(truncate_string("hello", 5), "hello");
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assert_eq!(truncate_string("hello_world", 8), "he...rld");
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assert_eq!(truncate_string("test", 4), "test");
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assert_eq!(truncate_string("test", 3), "tes");
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assert_eq!(truncate_string("ab", 2), "ab");
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assert_eq!(truncate_string("a", 1), "a");
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assert_eq!(truncate_string("hello", 1), "h");
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assert_eq!(truncate_string("hello", 0), "");
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assert_eq!(truncate_string("very_long_name", 10), "ver...name");
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assert_eq!(truncate_string("document_name", 9), "doc...ame");
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}
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