Added some end-user "sanity" tests
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/// Tests which exercise the overall application, in particular the `MDBook`
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/// initialization and build/rendering process.
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///
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/// This will create an entire book in a temporary directory using some
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/// dummy content.
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extern crate mdbook;
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extern crate tempdir;
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extern crate env_logger;
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use std::path::Path;
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use std::fs::{self, File};
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use std::io::{Read, Write};
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use tempdir::TempDir;
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use mdbook::MDBook;
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const SUMMARY_MD: &'static str = "# Summary
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[Introduction](intro.md)
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- [First Chapter](./first/index.md)
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- [Nested Chapter](./first/nested.md)
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- [Second Chapter](./second.md)
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[Conclusion](./conclusion.md)
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";
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const INTRO: &'static str = "# Introduction
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Here's some interesting text...";
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const FIRST: &'static str = "# First Chapter
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more text.";
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const NESTED: &'static str = r#"# Nested Chapter
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This file has some testable code.
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```rust
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assert!($TEST_STATUS);
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```"#;
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const SECOND: &'static str = "# Second Chapter";
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const CONCLUSION: &'static str = "# Conclusion";
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#[test]
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fn build_the_dummy_book() {
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let temp = create_book(true);
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let mut md = MDBook::new(temp.path());
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md.build().unwrap();
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}
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#[test]
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fn mdbook_can_correctly_test_a_passing_book() {
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let temp = create_book(true);
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let mut md = MDBook::new(temp.path());
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assert!(md.test().is_ok());
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}
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#[test]
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fn mdbook_detects_book_with_failing_tests() {
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let temp = create_book(false);
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let mut md = MDBook::new(temp.path());
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assert!(md.test().is_err());
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}
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#[test]
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fn by_default_mdbook_generates_rendered_content_in_the_book_directory() {
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let temp = create_book(false);
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let mut md = MDBook::new(temp.path());
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assert!(!temp.path().join("book").exists());
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md.build().unwrap();
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assert!(temp.path().join("book").exists());
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assert!(temp.path().join("book").join("index.html").exists());
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}
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#[test]
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fn make_sure_bottom_level_files_contain_links_to_chapters() {
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let temp = create_book(false);
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let mut md = MDBook::new(temp.path());
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md.build().unwrap();
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let dest = temp.path().join("book");
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let links = vec![
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"intro.html",
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"first/index.html",
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"first/nested.html",
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"second.html",
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"conclusion.html",
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];
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let files_in_bottom_dir = vec!["index.html", "intro.html", "second.html", "conclusion.html"];
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for filename in files_in_bottom_dir {
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assert_contains_strings(dest.join(filename), &links);
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}
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}
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#[test]
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fn check_correct_cross_links_in_nested_dir() {
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let temp = create_book(false);
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let mut md = MDBook::new(temp.path());
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md.build().unwrap();
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let first = temp.path().join("book").join("first");
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let links = vec![
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r#"<base href="../">"#,
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"intro.html",
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"first/index.html",
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"first/nested.html",
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"second.html",
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"conclusion.html",
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];
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let files_in_nested_dir = vec!["index.html", "nested.html"];
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for filename in files_in_nested_dir {
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assert_contains_strings(first.join(filename), &links);
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}
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}
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/// Create a dummy book in a temporary directory, using the contents of
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/// `SUMMARY_MD` as a guide.
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///
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/// The "Nested Chapter" file contains a code block with a single
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/// `assert!($TEST_STATUS)`. If you want to check MDBook's testing
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/// functionality, `$TEST_STATUS` can be substitute for either `true` or
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/// `false`. This is done using the `passing_test` parameter.
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fn create_book(passing_test: bool) -> TempDir {
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let temp = TempDir::new("dummy_book").unwrap();
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let src = temp.path().join("src");
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fs::create_dir_all(&src).unwrap();
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File::create(src.join("SUMMARY.md"))
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.unwrap()
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.write_all(SUMMARY_MD.as_bytes())
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.unwrap();
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File::create(src.join("intro.md"))
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.unwrap()
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.write_all(INTRO.as_bytes())
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.unwrap();
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let first = src.join("first");
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fs::create_dir_all(&first).unwrap();
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File::create(first.join("index.md"))
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.unwrap()
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.write_all(FIRST.as_bytes())
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.unwrap();
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let to_substitute = if passing_test { "true" } else { "false" };
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let nested_text = NESTED.replace("$TEST_STATUS", to_substitute);
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File::create(first.join("nested.md"))
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.unwrap()
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.write_all(nested_text.as_bytes())
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.unwrap();
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File::create(src.join("second.md"))
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.unwrap()
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.write_all(SECOND.as_bytes())
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.unwrap();
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File::create(src.join("conclusion.md"))
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.unwrap()
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.write_all(CONCLUSION.as_bytes())
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.unwrap();
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temp
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}
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fn assert_contains_strings<P: AsRef<Path>>(filename: P, strings: &[&str]) {
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println!("Checking {}", filename.as_ref().display());
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println!();
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let mut content = String::new();
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File::open(filename)
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.expect("Couldn't open the provided file")
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.read_to_string(&mut content)
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.unwrap();
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println!("{}", content);
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println!();
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println!();
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for s in strings {
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println!("Checking for {:?}", s);
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assert!(content.contains(s));
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}
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}
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