Merge pull request #374 from Michael-F-Bryan/moar-tests
High level integration tests
This commit is contained in:
commit
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# 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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# Conclusion
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# First Chapter
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more text.
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# 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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# Introduction
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Here's some interesting text...
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# Second Chapter
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//! Helpers for tests which exercise the overall application, in particular
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//! the `MDBook` 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 contents from the `tests/dummy-book/` directory.
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#![allow(dead_code, unused_variables, unused_imports)]
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extern crate tempdir;
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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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const SUMMARY_MD: &'static str = include_str!("dummy-book/SUMMARY.md");
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const INTRO: &'static str = include_str!("dummy-book/intro.md");
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const FIRST: &'static str = include_str!("dummy-book/first/index.md");
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const NESTED: &'static str = include_str!("dummy-book/first/nested.md");
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const SECOND: &'static str = include_str!("dummy-book/second.md");
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const CONCLUSION: &'static str = include_str!("dummy-book/conclusion.md");
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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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#[derive(Clone, Debug, PartialEq)]
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pub struct DummyBook {
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passing_test: bool,
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}
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impl DummyBook {
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/// Create a new `DummyBook` with all the defaults.
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pub fn new() -> DummyBook {
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DummyBook::default()
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}
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/// Whether the doc-test included in the "Nested Chapter" should pass or
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/// fail (it passes by default).
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pub fn with_passing_test(&mut self, test_passes: bool) -> &mut Self {
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self.passing_test = test_passes;
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self
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}
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/// Write a book to a temporary directory using the provided settings.
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///
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/// # Note
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///
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/// If this fails for any reason it will `panic!()`. If we can't write to a
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/// temporary directory then chances are you've got bigger problems...
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pub fn build(&self) -> 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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let first = src.join("first");
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fs::create_dir_all(&first).unwrap();
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let to_substitute = if self.passing_test { "true" } else { "false" };
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let nested_text = NESTED.replace("$TEST_STATUS", to_substitute);
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let inputs = vec![
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(src.join("SUMMARY.md"), SUMMARY_MD),
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(src.join("intro.md"), INTRO),
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(first.join("index.md"), FIRST),
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(first.join("nested.md"), &nested_text),
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(src.join("second.md"), SECOND),
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(src.join("conclusion.md"), CONCLUSION),
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];
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for (path, content) in inputs {
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File::create(path)
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.unwrap()
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.write_all(content.as_bytes())
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.unwrap();
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}
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temp
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}
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}
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impl Default for DummyBook {
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fn default() -> DummyBook {
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DummyBook { passing_test: true }
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}
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}
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/// Read the contents of the provided file into memory and then iterate through
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/// the list of strings asserting that the file contains all of them.
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pub fn assert_contains_strings<P: AsRef<Path>>(filename: P, strings: &[&str]) {
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let filename = filename.as_ref();
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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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.expect("Couldn't read the file's contents");
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for s in strings {
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assert!(content.contains(s), "Searching for {:?} in {}\n\n{}", s, filename.display(), content);
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}
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}
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extern crate mdbook;
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extern crate tempdir;
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use tempdir::TempDir;
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use mdbook::MDBook;
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/// Run `mdbook init` in an empty directory and make sure the default files
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/// are created.
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#[test]
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fn base_mdbook_init_should_create_default_content() {
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let created_files = vec!["book", "src", "src/SUMMARY.md", "src/chapter_1.md"];
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let temp = TempDir::new("mdbook").unwrap();
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for file in &created_files {
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assert!(!temp.path().join(file).exists());
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}
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let mut md = MDBook::new(temp.path());
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md.init().unwrap();
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for file in &created_files {
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assert!(temp.path().join(file).exists(), "{} doesn't exist", file);
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}
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}
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/// Set some custom arguments for where to place the source and destination
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/// files, then call `mdbook init`.
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#[test]
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fn run_mdbook_init_with_custom_book_and_src_locations() {
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let created_files = vec!["out", "in", "in/SUMMARY.md", "in/chapter_1.md"];
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let temp = TempDir::new("mdbook").unwrap();
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for file in &created_files {
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assert!(!temp.path().join(file).exists(), "{} shouldn't exist yet!", file);
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}
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let mut md = MDBook::new(temp.path())
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.with_source("in")
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.with_destination("out");
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md.init().unwrap();
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for file in &created_files {
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assert!(temp.path().join(file).exists(), "{} should have been created by `mdbook init`", file);
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}
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}
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extern crate mdbook;
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extern crate tempdir;
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mod helpers;
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use mdbook::MDBook;
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/// Make sure you can load the dummy book and build it without panicking.
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#[test]
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fn build_the_dummy_book() {
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let temp = helpers::DummyBook::default().build();
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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 by_default_mdbook_generates_rendered_content_in_the_book_directory() {
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let temp = helpers::DummyBook::default().build();
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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 = helpers::DummyBook::default().build();
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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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helpers::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 = helpers::DummyBook::default().build();
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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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helpers::assert_contains_strings(first.join(filename), &links);
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}
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}
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#[test]
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fn rendered_code_has_playpen_stuff() {
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let temp = helpers::DummyBook::default().build();
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let mut md = MDBook::new(temp.path());
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md.build().unwrap();
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let nested = temp.path().join("book/first/nested.html");
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let playpen_class = vec![r#"class="playpen""#];
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helpers::assert_contains_strings(nested, &playpen_class);
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let book_js = temp.path().join("book/book.js");
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helpers::assert_contains_strings(book_js, &[".playpen"]);
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}
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#[test]
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fn chapter_content_appears_in_rendered_document() {
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let content = vec![
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("index.html", "Here's some interesting text"),
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("second.html", "Second Chapter"),
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("first/nested.html", "testable code"),
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("first/index.html", "more text"),
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("conclusion.html", "Conclusion"),
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];
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let temp = helpers::DummyBook::default().build();
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let mut md = MDBook::new(temp.path());
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md.build().unwrap();
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let destination = temp.path().join("book");
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for (filename, text) in content {
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let path = destination.join(filename);
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helpers::assert_contains_strings(path, &[text]);
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}
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}
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extern crate tempdir;
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extern crate mdbook;
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mod helpers;
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use mdbook::MDBook;
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#[test]
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fn mdbook_can_correctly_test_a_passing_book() {
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let temp = helpers::DummyBook::default()
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.with_passing_test(true)
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.build();
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let mut md = MDBook::new(temp.path());
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assert!(md.test(vec![]).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 = helpers::DummyBook::default()
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.with_passing_test(false)
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.build();
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let mut md: MDBook = MDBook::new(temp.path());
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assert!(md.test(vec![]).is_err());
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}
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