Fixed `mdbook test` for {{#playpen file.rs}}

- now `mdbook test` does full link expansion to temp file prior to running
- also minor reformat and cleanup of `HtmlHandlebars::render_item`

Cargo.toml

@@ -28,6 +28,7 @@ env_logger = "0.4.0"
 toml = { version = "0.4", features = ["serde"] }
 open = "1.1"
 regex = "0.2.1"
+tempdir = "0.3.4"
 
 # Watch feature
 notify = { version = "4.0", optional = true }
@@ -39,10 +40,6 @@ iron = { version = "0.5", optional = true }
 staticfile = { version = "0.4", optional = true }
 ws = { version = "0.7", optional = true}
 
-# Tests
-[dev-dependencies]
-tempdir = "0.3.4"
-
 [build-dependencies]
 error-chain = "0.10"
 

src/book/mod.rs

@@ -6,9 +6,11 @@ use std::path::{Path, PathBuf};
 use std::fs::{self, File};
 use std::io::{Read, Write};
 use std::process::Command;
+use tempdir::TempDir;
 
 use {theme, parse, utils};
 use renderer::{Renderer, HtmlHandlebars};
+use preprocess;
 use errors::*;
 
 use config::BookConfig;
@@ -358,15 +360,26 @@ impl MDBook {
                                                               .zip(library_paths.into_iter())
                                                               .flat_map(|x| vec![x.0, x.1])
                                                               .collect();
+        let temp_dir = TempDir::new("mdbook")?;
         for item in self.iter() {
 
             if let BookItem::Chapter(_, ref ch) = *item {
-                if ch.path != PathBuf::new() {
+                if !ch.path.as_os_str().is_empty() {
 
                     let path = self.get_source().join(&ch.path);
-
+                    let base = path.parent().ok_or_else(
+                        || String::from("Invalid bookitem path!"),
+                    )?;
+                    let content = utils::fs::file_to_string(&path)?;
+                    // Parse and expand links
+                    let content = preprocess::links::replace_all(&content, base)?;
                     println!("[*]: Testing file: {:?}", path);
 
+                    //write preprocessed file to tempdir
+                    let path = temp_dir.path().join(&ch.path);
+                    let mut tmpf = utils::fs::create_file(&path)?;
+                    tmpf.write_all(content.as_bytes())?;
+
                     let output = Command::new("rustdoc").arg(&path).arg("--test").args(&library_args).output()?;
 
                     if !output.status.success() {

src/lib.rs

@@ -85,8 +85,6 @@ extern crate serde_derive;
 extern crate serde;
 #[macro_use]
 extern crate serde_json;
-
-#[cfg(test)]
 extern crate tempdir;
 
 mod parse;

src/renderer/html_handlebars/hbs_renderer.rs

@@ -33,24 +33,17 @@ impl HtmlHandlebars {
         // FIXME: This should be made DRY-er and rely less on mutable state
         match *item {
             BookItem::Chapter(_, ref ch) |
-            BookItem::Affix(ref ch) => {
-                if ch.path != PathBuf::new() {
+            BookItem::Affix(ref ch) if !ch.path.as_os_str().is_empty() => {
 
                 let path = ctx.book.get_source().join(&ch.path);
-
-                    debug!("[*]: Opening file: {:?}", path);
-                    let mut f = File::open(&path)?;
-                    let mut content: String = String::new();
-
-                    debug!("[*]: Reading file");
-                    f.read_to_string(&mut content)?;
+                let content = utils::fs::file_to_string(&path)?;
+                let base = path.parent().ok_or_else(
+                    || String::from("Invalid bookitem path!"),
+                )?;
 
                 // Parse and expand links
-                    if let Some(p) = path.parent() {
-                        content = preprocess::links::replace_all(&content, p)?;
-                    }
-
-                    content = utils::render_markdown(&content, ctx.book.get_curly_quotes());
+                let content = preprocess::links::replace_all(&content, base)?;
+                let content = utils::render_markdown(&content, ctx.book.get_curly_quotes());
                 print_content.push_str(&content);
 
                 // Update the context with data for this file
@@ -82,7 +75,6 @@ impl HtmlHandlebars {
                 if ctx.is_index {
                     self.render_index(ctx.book, ch, &ctx.destination)?;
                 }
-                }
             },
             _ => {},
         }