242 lines
12 KiB
Rust
242 lines
12 KiB
Rust
//! `edit` must reject options it does not know instead of writing an unchanged copy (#133).
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use std::path::PathBuf;
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use std::process::Command;
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const BIN: &str = env!("CARGO_BIN_EXE_pdfcraft-cli");
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/// A one-page 200×300 pt PDF.
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fn fixture() -> Vec<u8> {
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let objs: Vec<Vec<u8>> = vec![
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b"<< /Type /Catalog /Pages 2 0 R >>".to_vec(),
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b"<< /Type /Pages /Kids [3 0 R] /Count 1 /MediaBox [0 0 200 300] >>".to_vec(),
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b"<< /Type /Page /Parent 2 0 R >>".to_vec(),
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];
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let mut out = b"%PDF-1.7\n".to_vec();
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let mut offsets = Vec::new();
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for (i, o) in objs.iter().enumerate() {
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offsets.push(out.len());
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out.extend_from_slice(format!("{} 0 obj\n", i + 1).as_bytes());
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out.extend_from_slice(o);
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out.extend_from_slice(b"\nendobj\n");
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}
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let xref = out.len();
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out.extend_from_slice(format!("xref\n0 {}\n0000000000 65535 f \n", objs.len() + 1).as_bytes());
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for o in offsets {
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out.extend_from_slice(format!("{o:010} 00000 n \n").as_bytes());
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}
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out.extend_from_slice(format!("trailer\n<< /Size {} /Root 1 0 R >>\nstartxref\n{xref}\n%%EOF\n", objs.len() + 1).as_bytes());
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out
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}
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fn tmp(test: &str, name: &str) -> PathBuf {
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let d = std::env::temp_dir().join(format!("pdfcraft-cli-edit-{test}-{}", std::process::id()));
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std::fs::create_dir_all(&d).unwrap();
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d.join(name)
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}
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/// The page rotation `pdfcraft-cli info` reports for the first page, via the inspector.
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fn first_page_rotation(path: &std::path::Path) -> u16 {
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let bytes = std::sync::Arc::new(std::fs::read(path).unwrap());
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pdfcraft_render::inspect(bytes, None).unwrap().pages[0].rotation
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}
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#[test]
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fn a_misspelled_option_fails_and_writes_nothing() {
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let input = tmp("typo", "in.pdf");
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std::fs::write(&input, fixture()).unwrap();
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let output = tmp("typo", "typo.pdf");
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let out = Command::new(BIN).args(["edit", input.to_str().unwrap(), "--out", output.to_str().unwrap(), "--rotat", "1:90"]).output().unwrap();
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assert!(!out.status.success(), "an unknown option must not exit 0");
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let stderr = String::from_utf8_lossy(&out.stderr);
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assert!(stderr.contains("unknown option") && stderr.contains("--rotat"), "the option must be named: {stderr}");
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assert!(stderr.contains("--rotate"), "the accepted options must be listed: {stderr}");
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assert!(!output.exists(), "no output may be written for a rejected command line");
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}
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#[test]
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fn an_option_without_its_value_fails() {
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let input = tmp("novalue", "in.pdf");
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std::fs::write(&input, fixture()).unwrap();
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let output = tmp("novalue", "out.pdf");
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let out = Command::new(BIN).args(["edit", input.to_str().unwrap(), "--out", output.to_str().unwrap(), "--title"]).output().unwrap();
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assert!(!out.status.success());
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assert!(String::from_utf8_lossy(&out.stderr).contains("--title needs a value"));
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assert!(!output.exists());
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}
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#[test]
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fn a_second_input_file_fails() {
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let input = tmp("stray", "in.pdf");
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std::fs::write(&input, fixture()).unwrap();
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let output = tmp("stray", "out.pdf");
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let out = Command::new(BIN).args(["edit", input.to_str().unwrap(), "other.pdf", "--out", output.to_str().unwrap()]).output().unwrap();
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assert!(!out.status.success());
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assert!(String::from_utf8_lossy(&out.stderr).contains("unexpected argument \"other.pdf\""));
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assert!(!output.exists());
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}
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#[test]
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fn the_documented_options_still_edit_and_save() {
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let input = tmp("ok", "in.pdf");
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std::fs::write(&input, fixture()).unwrap();
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for (name, extra) in [("incremental.pdf", Vec::new()), ("full.pdf", vec!["--full"])] {
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let output = tmp("ok", name);
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let mut args = vec!["edit", input.to_str().unwrap(), "--out", output.to_str().unwrap(), "--rotate", "1:90", "--title", "Rotated"];
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args.extend(extra);
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let out = Command::new(BIN).args(&args).output().unwrap();
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assert!(out.status.success(), "{name}: {}", String::from_utf8_lossy(&out.stderr));
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assert_eq!(first_page_rotation(&output), 90, "{name}");
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let info = pdfcraft_render::inspect(std::sync::Arc::new(std::fs::read(&output).unwrap()), None).unwrap();
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assert_eq!(info.title.as_deref(), Some("Rotated"), "{name}");
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}
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}
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mod one_based_arguments {
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use super::*;
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use std::sync::atomic::{AtomicU64, Ordering};
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struct TestDir(PathBuf);
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impl TestDir {
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fn new() -> Self {
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static NEXT: AtomicU64 = AtomicU64::new(0);
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for _ in 0..128 {
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let path =
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std::env::temp_dir().join(format!("pdfcraft-cli-one-based-{}-{}", std::process::id(), NEXT.fetch_add(1, Ordering::Relaxed)));
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match std::fs::create_dir(&path) {
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Ok(()) => return Self(path),
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Err(e) if e.kind() == std::io::ErrorKind::AlreadyExists => continue,
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Err(e) => panic!("cannot create test directory: {e}"),
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}
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}
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panic!("cannot reserve test directory");
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}
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}
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impl Drop for TestDir {
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fn drop(&mut self) {
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let _ = std::fs::remove_dir_all(&self.0);
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}
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}
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#[test]
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fn zero_render_page_and_edit_positions_fail_before_io() {
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let dir = TestDir::new();
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let source = fixture();
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std::fs::write(dir.0.join("input.pdf"), &source).unwrap();
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for input in ["input.pdf", "missing.pdf"] {
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for destination in ["output.pam", "new.pam", "input.pdf"] {
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std::fs::write(dir.0.join("output.pam"), b"keep destination").unwrap();
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for (command, option, value, diagnostic) in [
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("render", "--page", "0", "--page must be at least 1"),
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("edit", "--move", "1:0", "--move target must be at least 1"),
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("edit", "--insert-blank", "0", "--insert-blank must be at least 1"),
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] {
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let out = Command::new(BIN).current_dir(&dir.0).args([command, input, "--out", destination, option, value]).output().unwrap();
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assert_eq!(out.status.code(), Some(1), "{command} {input} {option} {value}");
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assert_eq!(out.stderr, format!("pdfcraft-cli: {diagnostic}\n").as_bytes());
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assert!(out.stdout.is_empty());
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assert_eq!(std::fs::read(dir.0.join("input.pdf")).unwrap(), source);
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assert_eq!(std::fs::read(dir.0.join("output.pam")).unwrap(), b"keep destination");
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assert!(!dir.0.join("new.pam").exists());
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assert!(!dir.0.join("missing.pdf").exists());
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}
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}
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}
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assert_eq!(std::fs::read_dir(&dir.0).unwrap().count(), 2);
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}
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#[test]
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fn first_render_page_move_target_and_insertion_position_remain_usable() {
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let dir = TestDir::new();
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let source = fixture();
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std::fs::write(dir.0.join("input.pdf"), &source).unwrap();
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for output in ["page.pam", "page.png"] {
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let out =
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Command::new(BIN).current_dir(&dir.0).args(["render", "input.pdf", "--page", "1", "--dpi", "18", "--out", output]).output().unwrap();
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assert!(out.status.success(), "{}", String::from_utf8_lossy(&out.stderr));
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let bytes = std::fs::read(dir.0.join(output)).unwrap();
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if output.ends_with(".pam") {
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let header = b"P7\nWIDTH 50\nHEIGHT 75\nDEPTH 4\nMAXVAL 255\nTUPLTYPE RGB_ALPHA\nENDHDR\n";
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assert!(bytes.starts_with(header));
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assert_eq!(bytes.len(), header.len() + 50 * 75 * 4);
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} else {
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assert!(bytes.starts_with(b"\x89PNG\r\n\x1a\n"));
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assert_eq!(u32::from_be_bytes(bytes[16..20].try_into().unwrap()), 50);
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assert_eq!(u32::from_be_bytes(bytes[20..24].try_into().unwrap()), 75);
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}
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}
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let out = Command::new(BIN)
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.current_dir(&dir.0)
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.args(["edit", "input.pdf", "--out", "edited.pdf", "--move", "1:1", "--rotate", "1:90", "--insert-blank", "1"])
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.output()
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.unwrap();
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assert!(out.status.success(), "{}", String::from_utf8_lossy(&out.stderr));
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assert!(out.stdout.is_empty() && out.stderr.is_empty());
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let info = pdfcraft_render::inspect(std::sync::Arc::new(std::fs::read(dir.0.join("edited.pdf")).unwrap()), None).unwrap();
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assert_eq!(info.pages.len(), 2);
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assert_eq!((info.pages[0].width, info.pages[0].height, info.pages[0].rotation), (612.0, 792.0, 0));
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assert_eq!((info.pages[1].width, info.pages[1].height, info.pages[1].rotation), (300.0, 200.0, 90));
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assert_eq!(std::fs::read(dir.0.join("input.pdf")).unwrap(), source);
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}
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}
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/// A destination past the end must fail, not silently become an append (#1330).
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#[test]
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fn a_destination_past_the_end_fails_and_writes_nothing() {
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let input = tmp("past-end", "in.pdf");
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std::fs::write(&input, fixture()).unwrap();
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let output = tmp("past-end", "out.pdf");
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for (option, value, diagnostic) in [
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("--insert-blank", "3", "--insert-blank 3 is past the end: it must be between 1 and 2 (the document has 1 pages)"),
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("--insert-blank", "99", "--insert-blank 99 is past the end: it must be between 1 and 2 (the document has 1 pages)"),
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("--move", "1:3", "--move target 3 is past the end: it must be between 1 and 2 (the document has 1 pages)"),
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("--move", "1:99", "--move target 99 is past the end: it must be between 1 and 2 (the document has 1 pages)"),
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] {
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let out = Command::new(BIN).args(["edit", input.to_str().unwrap(), "--out", output.to_str().unwrap(), option, value]).output().unwrap();
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assert_eq!(out.status.code(), Some(1), "{option} {value}");
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assert_eq!(String::from_utf8_lossy(&out.stderr), format!("pdfcraft-cli: {diagnostic}\n"), "{option} {value}");
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assert!(!output.exists(), "{option} {value}: no output may be written");
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}
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}
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/// One past the last page appends, and each destination is checked against the page count at that point.
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#[test]
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fn the_append_destination_and_counts_grown_by_earlier_edits_are_accepted() {
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let input = tmp("append", "in.pdf");
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std::fs::write(&input, fixture()).unwrap();
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for (name, args) in [
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("insert.pdf", vec!["--insert-blank", "2"]),
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("move.pdf", vec!["--insert-blank", "1", "--move", "1:3"]),
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("grown.pdf", vec!["--insert-blank", "2", "--insert-blank", "3"]),
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] {
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let output = tmp("append", name);
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let mut all = vec!["edit", input.to_str().unwrap(), "--out", output.to_str().unwrap()];
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all.extend(args);
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let out = Command::new(BIN).args(&all).output().unwrap();
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assert!(out.status.success(), "{name}: {}", String::from_utf8_lossy(&out.stderr));
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let info = pdfcraft_render::inspect(std::sync::Arc::new(std::fs::read(&output).unwrap()), None).unwrap();
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let sizes: Vec<_> = info.pages.iter().map(|p| (p.width, p.height)).collect();
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let expected: &[(f32, f32)] = match name {
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"insert.pdf" => &[(200.0, 300.0), (612.0, 792.0)],
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"move.pdf" => &[(200.0, 300.0), (612.0, 792.0)],
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_ => &[(200.0, 300.0), (612.0, 792.0), (612.0, 792.0)],
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};
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assert_eq!(sizes, expected, "{name}");
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}
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}
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/// A page past the end names its own option and the page count left by the earlier options (#1550).
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#[test]
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fn a_page_past_the_end_after_earlier_edits_names_that_option() {
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let input = tmp("chained", "in.pdf");
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std::fs::write(&input, fixture()).unwrap();
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let output = tmp("chained", "out.pdf");
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// 1 page, grown to 3, then --delete leaves 2: the 3 in --move 3:1 is the page that is gone.
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let args = ["--insert-blank", "2", "--insert-blank", "3", "--delete", "3", "--move", "3:1"];
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let out = Command::new(BIN).args(["edit", input.to_str().unwrap(), "--out", output.to_str().unwrap()]).args(args).output().unwrap();
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assert!(!out.status.success());
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let err = String::from_utf8_lossy(&out.stderr);
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assert!(err.contains("--move: page 3 does not exist") && err.contains("has 2 pages"), "{err}");
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assert!(!output.exists());
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}
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