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38 lines
1.2 KiB
Rust
38 lines
1.2 KiB
Rust
use std::fs;
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use std::io::Read;
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use cbz2pdf::formats::pdf::PdfWriter;
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use cbz2pdf::formats::FormatWriter;
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use cbz2pdf::model::{Document, ImagePage};
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#[test]
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fn pdf_writer_writes_valid_pdf_header() {
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// Build a simple 2x2 red image page
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let mut img = image::DynamicImage::new_rgb8(2, 2).to_rgb8();
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for p in img.pixels_mut() {
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*p = image::Rgb([255, 0, 0]);
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}
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let page = ImagePage {
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name: "page1.jpg".to_string(),
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image: image::DynamicImage::ImageRgb8(img),
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jpeg_dct: None,
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};
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let doc = Document::new(vec![page]);
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let temp_dir = tempfile::tempdir().expect("create temp dir");
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let output = temp_dir.path().join("out.pdf");
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let writer = PdfWriter;
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writer.write(&doc, &output).expect("failed to write PDF");
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// Assert file exists and has PDF header
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let mut f = fs::File::open(&output).expect("pdf not created");
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let mut header = [0u8; 5];
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f.read_exact(&mut header).expect("cannot read header");
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assert_eq!(&header, b"%PDF-", "missing PDF header");
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let meta = fs::metadata(&output).unwrap();
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assert!(meta.len() > 0, "empty pdf");
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// temp_dir cleans up automatically on drop
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}
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