Code cleanup and more docs/tests

src/bin/main.rs

@@ -1,10 +1,8 @@
 extern crate libroller;
-//use libroller::config::Config;
 use libroller::roll::Roll;
 use std::env;
 
 fn main() {
-//    let roll = Config::new(&mut env::args());
     let rolls = Roll::from_args(&mut env::args()).unwrap_or_else(|err| {
         eprintln!("Error occured:{}", err);
         std::process::exit(1)

src/roll.rs

@@ -24,7 +24,9 @@ impl Roll {
     /// Returns the value stored in the number field of a roll.
     /// Allows the fields of `Roll` to be private (and unchangable)
     /// while still allowing access to act on their internal value
+    /// ##EXAMPLE
     /// ```
+    /// use libroller::Roll;
     /// let x = Roll::new(2,6);
     /// assert!(x.number() == 2);
     /// ```
@@ -34,6 +36,12 @@ impl Roll {
     /// Returns the value stored in the die field of a roll.
     /// Allows the fields of `Roll` to be private (and unchangable)
     /// while still allowing access to act on their internal value
+    /// ##EXAMPLE
+    /// ```
+    /// use libroller::Roll;
+    /// let x = Roll::new(2,6);
+    /// assert!(x.die() == 6);
+    /// ```
     pub fn die(&self) -> usize {
         self.die
     }
@@ -41,6 +49,11 @@ impl Roll {
     /// a Vector ensures the ability to work on exactly the same
     /// die rolls easily and accurately, since calling the `Roll`
     /// iterator again will produce new results. Consumes the `Roll`
+    /// ##EXAMPLE
+    /// ```
+    /// use libroller::Roll;
+    /// let x = Roll::new(2,6).rolls();
+    /// ```
     pub fn rolls(self) -> Vec<usize> {
         self.collect()
     }
@@ -48,6 +61,11 @@ impl Roll {
     /// Used on a `Roll` to return only the final value, ignoring
     /// the values used to add up to that result. Allows `.total()`
     /// syntax when used. Consumes the `Roll`.
+    /// ##EXAMPLE
+    /// ```
+    /// use libroller::Roll;
+    /// let x = Roll::new(2,6).total();
+    /// ```
     pub fn total(self) -> usize {
         self.sum()
     }
@@ -56,6 +74,11 @@ impl Roll {
     /// failing that it returns an error to be handled.
     /// Keeps taking args until less than 2 remain so it returns a
     /// `Vec<Roll>`
+    /// ##EXAMPLE
+    /// ```
+    /// use libroller::Roll;
+    /// let x = Roll::from_args(&mut std::env::args()).unwrap_or(vec![]);
+    /// ```
     pub fn from_args(args: &mut std::env::Args) -> Result<Vec<Roll>, ParseIntError> {
         //first arg is the path to the executable so skip it
         args.next();
@@ -96,8 +119,8 @@ impl Iterator for Roll {
 
 /// Defines a `Display` format for the `Roll` type. Makes it much easier
 ///to use the `Roll` type as you should be able to just use
-///```
+/// `println!("{}", Roll::new(2,6));`
-/// ```
+/// and have `2d6` be returned.
 impl fmt::Display for Roll {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         write!(f, "{}d{}", self.number, self.die)