Use doc_comment for README doctests

Author: jamessan

Cargo.toml

@@ -12,3 +12,6 @@ keywords = ["ansi", "escape", "terminal"]
 
 [dependencies]
 vte = "0.10"
+
+[dev-dependencies]
+doc-comment = "0.3"

src/lib.rs

@@ -151,42 +151,16 @@ where
     }
 }
 
+#[cfg(doctest)]
+extern crate doc_comment;
+
+#[cfg(doctest)]
+doc_comment::doctest!("../README.md", readme);
+
 #[cfg(test)]
 mod tests {
     use super::*;
 
-    use std::env;
-    use std::env::consts::EXE_EXTENSION;
-    use std::path::Path;
-    use std::process::Command;
-
-    #[test]
-    fn readme_test() {
-        let rustdoc = Path::new("rustdoc").with_extension(EXE_EXTENSION);
-        let readme = Path::new(file!())
-            .parent()
-            .unwrap()
-            .parent()
-            .unwrap()
-            .join("README.md");
-        let exe = env::current_exe().unwrap();
-        let outdir = exe.parent().unwrap();
-        let mut cmd = Command::new(rustdoc);
-        cmd.args(&["--verbose", "--test", "-L"])
-            .arg(&outdir)
-            .arg(&readme);
-        println!("{:?}", cmd);
-        let result = cmd
-            .spawn()
-            .expect("Failed to spawn process")
-            .wait()
-            .expect("Failed to run process");
-        assert!(
-            result.success(),
-            "Failed to run rustdoc tests on README.md!"
-        );
-    }
-
     fn assert_parsed(input: &[u8], expected: &[u8]) {
         let bytes = strip(input).expect("Failed to strip escapes");
         assert_eq!(bytes, expected);