lol

.travis.yml

@@ -0,0 +1,7 @@
+language: rust
+rust:
+  - stable
+  - nightly
+matrix:
+  allow_failures:
+    - rust: stable

CONTRIBUTING.md

@@ -0,0 +1,19 @@
+# Contributing to UCI
+
+TODO
+
+
+# Styleguide
+
+We try to make use of the styleguide found [here](https://github.com/rust-lang-nursery/fmt-rfcs/blob/master/guide/guide.md).
+
+## Character Limit
+
+We try to make each line less than or equal to 120 charcters.
+
+## Testing
+
+Prefer seperating out your tests into discrete modules where possible. In general:
+
+1. Engine "global" tests go into `tests/lib.rs`
+2. Everything else gets it's own module inside `tests/`

Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+name = "uci"
+version = "0.1.0"
+authors = ["Taylor Bockman <angrygoats@protonmail.com>"]
+description = "An implementation of the UCI specification in Rust"
+repository = "https://github.com/angrygoats/uci"
+readme = "README.md"
+keywords = ["uci", "universal chess interface", "chess", "engine", "chess engine"]
+categories = ["games", "game-engines", "api-bindings", "config", "development-tools"]
+license = "GPL-3.0"
+
+[dependencies]
+"either" = "1.4.0"

README.md

@@ -1,2 +1,137 @@
-# uci
+# UCI
-An implementation of the Universal Chess Interface in Rust
+
+UCI is an acronym for **U**niversal **C**hess **I**nterface. It is a standard for communication that competes with
+XBoard/Winboard. [http://wbec-ridderkerk.nl/html/UCIProtocol.html](UCI) makes communication a little easier, but
+it seems there's a nearly religious debate on which is better.
+
+Here are some benefits to using UCI:
+
+* It works with Chessbase 14
+* Simple to use
+* Fewer bugs in code
+* Built from scratch rather than ad-hoc
+* Flexible time controls
+* Additional search information can be displayed
+
+and to be fair, some downsides:
+
+* Stateless
+* Delegates some important decisions to the GUI
+* Difficult to add new features on top of it
+* Sends the whole move list each turn
+
+Overall, UCI seems to be fairly popular and is worth considering for your next engine.
+
+## Why
+
+People shouldn't waste their time implementing protocols that really should be libraries. With this, you can
+include it in your project, build your engine on top of it, and be able to focus on what matters - beating Stockfish.
+
+
+### Yeah, but why Rust?
+
+Originally I had written part of this library in C++. However, considering how prone people are to errors in C++, I
+decided to choose a language that provides a little more safety to the user. Currently
+[Rust is beating Go](http://benchmarksgame.alioth.debian.org/u64q/compare.php?lang=rust&lang2=go) in the Computer
+Language Benchmark Game, so it was the winner. People who write chess engines care about performance. If you're not
+writing C/C++, Rust seems like the next best thing.
+
+
+## Will You Implement Winboard?
+
+Yeah, probably.
+
+## Why GPL 3.0?
+
+I have noticed that there are no good _free_ solutions so that anyone can build a chess engine. Since UCI is
+a common format, and something all engines (should) implement, making this chunk of it free makes _total_ sense.
+
+## Usage
+
+UCI is designed to complement your chess engine rather than be a one-stop shop for engine development.
+
+As such, you will be responsible for maintaining the game loop. What UCI provides is a series of functions
+that will help you send data to, and receive data from the GUI.
+
+### First Steps
+
+Your engine will first need to wait on STDIN for a command `uci` from the GUI. This indicates that your engine should
+switch to UCI mode. You can use `commands::UCI` to make sure the command text you are waiting for is correct.
+
+
+Next, you'll need to create a copy of `Engine` by calling `Engine::new`. Once this is setup, you can call
+`Engine::identify` to send identification information to the GUI.
+
+Once identification is done, you need to send your configuration options. This is dependent on your engine. Refer to
+the UCI standard for the available options. Here is an example of an option configuration:
+
+```rust
+  let o1 = EngineOption {
+    name: constants::HASH,
+    option_type: EngineOptionType::Spin,
+    option_data: [(EngineOptionDataType::DefaultVal, EngineOptionData::Int(1)),
+     (EngineOptionDataType::Min, EngineOptionData::Int(1)),
+     (EngineOptionDataType::Max, EngineOptionData::Int(128))
+    ].iter().cloned().collect();
+  };
+```
+
+As nice as it would be to have fully typechecked options you will need to be careful a little here. The available
+options your engine uses must be passed to `Engine::new` as an array of `Options::EngineOption<T>`
+from `options.rs`. Every `Options::EngineOption<T>` has a `name`, which you can use any of the
+`Options::*` constants to represent, a `type`, which can be an `Options::EngineOptionType`, and a hashmap
+of `Options::EngineOptionDataType` to `Options::EngineOptionDataValue<T>`. Refer to the standard for more
+information on option configurations. The `T` type parameters represents the type of that particular
+`Options::EngineOption<T>` and allows us to at least fix the type in the HashMap to a single type. You can still
+hurt yourself, but doing this makes it much harder. Keep this list of options close, the GUI may send back
+information after call `Engine::send_available_options` to reconfigure default settings.
+
+You must configure this before calling `Engine::new` so the rest of this  guide assumes you've done that already.
+
+To send your configuration options simply call `Engine::send_available_options`. Once this finishes `uciok` will
+also be sent, indicating to the GUI your engine is ready to roll. At this point you need to set up two threads, one
+to calculate with your engine, and one to read STDIN.
+
+```
+EXAMPLE HERE WITH LOOPS IN THREADS AND BLOCKING AND WHATEVER
+```
+
+Notice how in our STDIN thread we are calling `Engine::parse` and the handling the output using a match statement
+depending on what kind of token it was. You are responsible for obeying the commands from this thread, the UCI library
+just makes it convenient to work with. Here is an example of handling a parsed command:
+
+```
+EXAMPLE OF HANDLING A PARSED COMMAND AND SENDING BACK SOMETHING
+```
+
+At this point the engine will send a series of `setoption` commands to you in your STDIN thread. We can use the
+`Engine::parse` function to get these:
+
+```
+EXAMPLE HERE
+```
+
+Once the options are extracted you will be responsible for configuring your engine with the values. The GUI will send
+an `isready` command which you will be responsible for replying to by using `Engine::ready`.
+
+**TODO: MORE STUFF WITH EXAMPLES**
+**THINGS LIKE SENDINB BEST MOVE AFTER CALCULATING, ETC**
+**RECEIVING SETOPTION COMMANDS AND PROCESSING THEM**
+
+
+### Other Options
+
+**TODO: Talk about the additional helpers available in the UCI library and what-not**.
+
+* Copy protection checking
+* Registration checking
+
+** TODO: Put an example engine under `/examples` that does nothing but talks to the GUI and receives commands.
+** Document it here and mention it can be used for guidance.
+
+
+### Other Libraries in the works
+
+In the future more libraries will be available to help chess engine developers get started. I will be writing
+a library to give some standard implementations of [Zobrist Hashing](https://en.wikipedia.org/wiki/Zobrist_hashing),
+among other useful tools that are commonly re-implemented a thousand times for every engine.

src/commands.rs

@@ -0,0 +1,57 @@
+//! Commands contains the command constants expected during the UCI lifecycle
+//! It is useful to note many of these commands do not end with '\n'. This is because they expect arguments.
+
+
+///////// Engine to GUI /////////
+
+
+/// ID is used to signal the engine name and author to the GUI
+pub const ID: &'static str = "id";
+
+/// NAME is used to signal the engine name
+pub const NAME: &'static str = "name";
+
+/// AUTHOR is used to signal the engine author
+pub const AUTHOR: &'static str = "author";
+
+/// UCIOK is sent after the ID and optional options to tell the GUI that the engine has sent all infos and is ready
+/// in UCI mode
+pub const UCIOK: &'static str = "uciok\n";
+
+/// READYOK is sent when the engine has received an "isready" command and has processed all input and is ready to
+/// accept new commands now
+pub const READYOK: &'static str = "readyok\n";
+
+/// BESTMOVE is sent when the engine has stopped searching and found the move best in this position
+pub const BESTMOVE: &'static str = "bestmove";
+
+/// COPYPROTECTIONCHECKING tells the GUI that the engine is checking the copy protection
+pub const COPYPROTECTIONCHECKING: &'static str = "copyprotection checking\n";
+
+/// COPYPROTECTIONOK tells the GUI that the engine has verified the copy protection
+pub const COPYPROTECTIONOK: &'static str = "copyprotection ok\n";
+
+/// COPYPROTECTIONERROR tells the GUI that the engine has rejected the copy protection
+pub const COPYPROTECTIONERROR: &'static str = "copyprotection error\n";
+
+/// REGISTRATIONCHECKING tells the GUI that the engine is checking the registration
+pub const REGISTRATIONCHECKING: &'static str = "registration checking\n";
+
+/// REGISTRATIONOK tells the GUI that the engine the registration has been verified
+pub const REGISTRATIONOK: &'static str = "registration ok\n";
+
+/// REGISTRATIONERROR tells the GUI that the engine has rejected the registration
+pub const REGISTRATIONERROR: &'static str = "registration error\n";
+
+/// INFO tells the GUI the engine wants to sent infos to the GUI. This should be done whenever the info has changed
+pub const INFO: &'static str = "info";
+
+/// OPTION tells the GUI which parameters can be changed in the engine
+pub const OPTION: &'static str = "option";
+
+/// OPTIONNAME tells the GUI which option name is being sent
+pub const OPTIONNAME: &'static str = "name";
+
+/// TYPE tells the GUI the type of the option
+pub const TYPE: &'static str = "type";
+

src/lib.rs

@@ -0,0 +1,87 @@
+//! UCI is a simple library to allow people to ignore the lower-level protocol needed to create chess engines.
+//! The engine is fully generic. By specifying a valid reader and writing you can send the messages to STDIN
+//! and STDOUT, per the standard - or to memory for testing.
+
+
+// BIG TODO: Change pub struct members to private and use getters/setters. DO THIS FOR EVERYTHING AFTER YOU
+// IMPLEMENT OPTION SENDING.
+// ALSO CHANGE COMMANDS TO HAVE A CONSTANTS SUBMODULE LIKE OPTIONS
+
+extern crate either;
+
+pub mod commands;
+pub mod options;
+pub mod parser;
+
+use std::io::{BufRead, Write};
+use std::vec;
+
+#[derive(Debug)]
+pub struct Engine<'a, R, W> {
+  pub name: &'a str,
+  pub author: &'a str,
+  pub reader: R,
+  pub writer: W,
+  pub engine_options: Vec<options::EngineOption>,
+}
+
+/// Notes to delete later:
+///
+///
+///  A way to make this comfortable for users to use is this provides easy access to commands as well as a
+///  loop and stuff they can use. This way they don't have to override anything - they just include this
+///  in their code for their engine to make the communication portion easy.
+///
+///  Think of this in the manner of a game engine. They don't provide the loop and everything, but they do
+///  provide convenience functions and stuff to make _building_ that loop easier.
+///
+///  In other words, the engine writer still needs to know how the standard works. They just don't need to
+///  implement all the nasty details.
+///  For example, a start up function calls the correct "boot up" code for the engine so they only have to
+///  worry about calling "boot up" prior to their main engine loop.
+///
+///
+///  TODO: THE NEXT THING - THE PARSER! (after putting in getters but _no_ setters and taking away pub fields
+///        for all structs in the app if that is idiomatic)
+///
+///  Additionally this code should have a parser. You call it with the reader supplied and it waits for a command
+///  and parses it into a tuple of <token, value>. For example it would parse `setoption` into an option constant
+///  and the value to set it to. This should be super generic and parsing results should just be of a type
+///  ParseResult. The tuple implements ParseResult which represents a tuple of a token and value.
+
+impl<'a, R, W> Engine<'a, R, W>
+where
+  R: BufRead,
+  W: Write,
+{
+  pub fn new(name: &'a str, author: &'a str,
+             reader: R, writer: W, engine_options: Vec<options::EngineOption>) -> Engine<'a, R, W> {
+    Engine { name, author, reader, writer, engine_options,
+    }
+  }
+
+  /// Sends identification messages to the writer for the GUI to pick up
+  pub fn identify(&mut self) {
+    let name_id: String = format!("{} {} {}\n", commands::ID, commands::NAME, self.name);
+    let author_id: String = format!("{} {} {}\n", commands::ID, commands::AUTHOR, self.author);
+
+    // For these two writes we can panic - there's no possibility of recovery if the engine fails at this stage
+    write!(&mut self.writer, "{}", name_id).expect("failed to send name identification to writer");
+    write!(&mut self.writer, "{}", author_id).expect("failed to send author identification to writer");
+  }
+
+  /// Sends all available options in the options configuration and a final UCIOK meaning we are reading to go.
+  pub fn send_available_options(&mut self) {
+    for eo in &self.engine_options {
+      write!(&mut self.writer, "{}", eo.to_string()).expect(&format!("failed to send `{}`", eo.to_string()));
+    }
+
+    // Again this command must complete before we can say the engine is connected, so panicking at this stage is ok
+    write!(&mut self.writer, "{}", commands::UCIOK).expect("failed to send `uciok` command");
+  }
+
+  /// Sends `readyok` to the GUI
+  pub fn ready(&mut self) {
+    write!(&mut self.writer, "{}", commands::READYOK).expect("failed to send `readyok` command");
+  }
+}

src/options.rs

@@ -0,0 +1,143 @@
+//! Options contains everything related to engine options. The idea behind this is to take as much
+//! advantage of the typechecker as possible. As a result, engine option names are constant static strings,
+//! and EngineOption tries to be flexible so it can be reused for each option, which also maintaining some
+//! of the nicer parts of typechecking.
+
+use std::collections::HashMap;
+use commands;
+
+/// These constants can be used for naming options easily. Option name is fairly flexible.
+pub mod constants {
+
+  /// Represents the hash option
+  pub const HASH: &'static str = "Hash";
+
+  /// Represents the Nalimov Path option
+  pub const NALIMOVPATH: &'static str = "NalimovPath";
+
+  /// Represents the Nalimov Cache option
+  pub const NALIMOVCACHE: &'static str = "NalimovCache";
+
+  /// Represents the ponder option
+  pub const PONDER: &'static str = "Ponder";
+
+  /// Represents the OwnBook option
+  pub const OWNBOOK: &'static str = "OwnBook";
+
+  /// Represents the MultiPV option
+  pub const MULTIPV: &'static str = "MultiPV";
+
+  /// Represents the UCI_ShowCurrLine option
+  pub const UCISHOWCURRLINE: &'static str = "UCI_ShowCurrLine";
+
+  /// Represents the UCI_Refutations option
+  pub const UCISHOWREFUTATIONS: &'static str = "UCI_ShowRefutations";
+
+  /// Represents the UCI_LimitStrength option
+  pub const UCILIMITSTRENGTH: &'static str = "UCI_LimitStrength";
+
+  /// Represents the UCI_Elo option
+  pub const UCIELO: &'static str = "UCI_Elo";
+
+  /// Represents the UCI_AnalysisMode option
+  pub const UCIANALYSISMODE: &'static str = "UCI_AnalysisMode";
+
+  /// Represents the UCI_Opponent option
+  pub const UCIOPPONENT: &'static str = "UCI_Opponent";
+
+}
+
+/// The `EngineOptionType` type used to indicate what type of option the GUI should display
+#[derive(Copy, Clone, Debug, PartialEq)]
+pub enum EngineOptionType {
+  Check,
+  Spin,
+  Combo,
+  Button,
+  TypeString,     // `String` is a reserved word so `TypeString` is substituted
+}
+
+#[derive(Clone, Debug, PartialEq, PartialOrd)]
+/// The `EngineOptionData` makes the data type generic so one `EngineOption` can represent everything
+/// This would be set to the type of the engine option (ex. i32)
+pub enum EngineOptionData {
+  Int(i32),
+  Float(f64),
+  Text(String),
+}
+
+#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
+/// The `EngineOptionDataType` type used to indicate the type of the `EngineOption` setting
+pub enum EngineOptionDataType {
+  DefaultVal,    // `Default` is reserved so `DefaultVal` is used
+  Min,
+  Max,
+  Var,
+}
+
+#[derive(Debug, PartialEq)]
+/// The `EngineOption` type is the overarching type representing a single configurable engine option
+pub struct EngineOption {
+  pub name: &'static str,
+  pub option_type: EngineOptionType,
+  pub option_data: HashMap<EngineOptionDataType, EngineOptionData>,
+}
+
+impl EngineOption {
+
+  /// Constructs a new EngineOption of type T
+  pub fn new(name: &'static str, option_type: EngineOptionType,
+             option_data: HashMap<EngineOptionDataType, EngineOptionData>) -> EngineOption {
+    EngineOption { name, option_type, option_data, }
+  }
+
+  fn engine_option_data_string(d: &EngineOptionData) -> String {
+    match d {
+      &EngineOptionData::Int(v) => v.to_string(),
+      &EngineOptionData::Float(v) => v.to_string(),
+      &EngineOptionData::Text(ref v) => v.clone(),
+    }
+  }
+
+  /// Turns the EngineOption into a string that can be sent to the GUI
+  pub fn to_string(&self) -> String {
+    let mut option_data_string: String = String::new();
+
+    // NOTE: The user is left to understand what option takes which of these data type values. There's some
+    //       work that can be done later switching based on the option type, but for now it's reasonable to
+    //       expect the user understands the standard well enough to know which options take what kind
+    //       of settings.
+    if self.option_data.contains_key(&EngineOptionDataType::DefaultVal) {
+      let data = self.option_data.get(&EngineOptionDataType::DefaultVal);
+      option_data_string.push_str(&format!(" {} {}", "default",
+                                           EngineOption::engine_option_data_string(&data.unwrap())));
+    }
+
+    if self.option_data.contains_key(&EngineOptionDataType::Min) {
+      let data = self.option_data.get(&EngineOptionDataType::Min);
+      option_data_string.push_str(&format!(" {} {}", "min", EngineOption::engine_option_data_string(&data.unwrap())));
+    }
+
+    if self.option_data.contains_key(&EngineOptionDataType::Max) {
+      let data = self.option_data.get(&EngineOptionDataType::Max);
+      option_data_string.push_str(&format!(" {} {}", "max", EngineOption::engine_option_data_string(&data.unwrap())));
+    }
+
+    if self.option_data.contains_key(&EngineOptionDataType::Var) {
+      let data = self.option_data.get(&EngineOptionDataType::Var);
+      option_data_string.push_str(&format!(" {} {}", "var", EngineOption::engine_option_data_string(&data.unwrap())));
+    }
+
+
+    let ots = match self.option_type {
+      EngineOptionType::Check => "check",
+      EngineOptionType::Spin => "spin",
+      EngineOptionType::Combo => "combo",
+      EngineOptionType::Button => "button",
+      EngineOptionType::TypeString => "string",
+    };
+
+    format!("{} {} {} {} {}{}\n", commands::OPTION, commands::OPTIONNAME, self.name,
+            commands::TYPE, ots, option_data_string)
+  }
+}

src/parser.rs

@@ -0,0 +1,92 @@
+//! Parser contains the command parser for handling receiving commands from the GUI
+
+
+use std::collections::HashMap;
+use commands;
+
+use either::Either;
+pub use either::Left;
+pub use either::Right;
+
+/// Token represents a parsable token in the string sent via STDIN from the GUI
+#[derive(Debug, Eq, PartialEq)]
+pub enum Token {
+  UCI,
+  DEBUG,
+  ISREADY,
+  SETOPTION,
+  REGISTER,
+  UCINEWGAME,
+  POSITION,
+  GO,
+  STOP,
+  PONDERHIT,
+  QUIT,
+}
+
+#[derive(Clone, Debug, PartialEq, PartialOrd)]
+pub enum CommandValue {
+  Int(i32),
+  Float(f64),
+  Text(String),
+  Boolean(bool),
+}
+
+pub struct Parser {}
+
+/// TokenResult is a convenient way to package an entire command string. It is identified by it's associated
+/// Token, and the arguments.
+///
+/// Example:
+///
+/// setoption name Hash value 32
+/// --------- ---- ---- ----- --
+///   Token   arg  val  arg  val
+///
+/// debug on
+/// ----- --
+/// Token val
+///
+///
+/// The user is still responsible for knowing what to look for in the hashmap but this structure makes it far
+/// easier to work with commands. Some commands don't have arguments, in that case the args will be None.
+#[derive(Debug, PartialEq)]
+pub struct TokenResult {
+  token: Token,
+  args: Either<Option<HashMap<&'static str, CommandValue>>, &'static str>,
+}
+
+impl TokenResult {
+
+  /// Intantiates a new TokenResult
+  pub fn new(token: Token, args: Either<Option<HashMap<&'static str, CommandValue>>, &'static str>>) -> TokenResult {
+    TokenResult { token, args }
+  }
+}
+
+impl Parser {
+
+  /// Instantiates a new Parser
+  pub fn new() -> Parser {
+    Parser{}
+  }
+
+  /// Parses a single string from the GUI and turns it into a neatly packaged TokenResult for processing
+  /// by the engine.
+  pub fn parse(&self, s: &str) -> Result<TokenResult, &'static str> {
+
+    // TODO: Remove the /n from the end
+
+    let tokens: Vec<&str> = s.split_whitespace().collect::<Vec<&str>>();
+
+    // TODO: Parse things based on the token, probably need a special function for each token based on a switch
+    //       of tokens[0].
+
+
+    // remove this when it's working
+    Ok(TokenResult::new(Token::SETOPTION, Left(Some(HashMap::new()))))
+  }
+}
+
+
+

tests/lib.rs

@@ -0,0 +1,82 @@
+extern crate uci;
+
+use uci::Engine;
+use uci::options::constants;
+use uci::options::{ EngineOption, EngineOptionType, EngineOptionDataType, EngineOptionData };
+use std::str;
+
+#[test]
+fn instantiate_new_engine() {
+  let input = b"UNUSED";
+  let mut output = Vec::new();
+
+  let e = Engine::new("test_name", "test", &input[..], &mut output, vec!());
+  assert_eq!(e.name, "test_name");
+  assert_eq!(e.author, "test");
+}
+
+#[test]
+fn send_identification_data() {
+  let input = b"UNUSED";
+  let mut output = Vec::new();
+
+  // We need to scope this so that the mutable borrow ends and we can test it safely
+  {
+    let mut e = Engine::new("test_name", "test", &input[..], &mut output, vec!());
+    e.identify();
+  }
+  assert_eq!(str::from_utf8(&output).unwrap_or("Unwrapping output failed in send_identification_data"),
+             "id name test_name\nid author test\n");
+}
+
+#[test]
+fn send_readyok() {
+  let input = b"UNUSED";
+  let mut output = Vec::new();
+  {
+    let mut e = Engine::new("test_name", "test", &input[..], &mut output, vec!());
+    e.ready();
+  }
+
+  assert_eq!(str::from_utf8(&output).unwrap_or("Unwrapping output failed in send_readyok"),
+             "readyok\n");
+}
+
+#[test]
+fn send_available_engine_options() {
+  let input = b"UNUSED";
+  let mut output = Vec::new();
+
+  let o1 = EngineOption {
+    name: constants::HASH,
+    option_type: EngineOptionType::Spin,
+    option_data: [(EngineOptionDataType::DefaultVal, EngineOptionData::Int(1)),
+     (EngineOptionDataType::Min, EngineOptionData::Int(1)),
+     (EngineOptionDataType::Max, EngineOptionData::Int(128))
+    ].iter().cloned().collect(),
+  };
+
+  let o2 = EngineOption {
+    name: constants::NALIMOVPATH,
+    option_type: EngineOptionType::TypeString,
+    option_data: [(EngineOptionDataType::DefaultVal, EngineOptionData::Text(String::from(r"c:\"))),
+    ].iter().cloned().collect(),
+  };
+
+  let o3 = EngineOption {
+    name: "Clear Hash",
+    option_type: EngineOptionType::Button,
+    option_data: [].iter().cloned().collect(),
+  };
+
+  {
+    let mut e = Engine::new("test_name", "test", &input[..], &mut output, vec!(o1, o2, o3));
+    e.send_available_options();
+  }
+  assert_eq!(str::from_utf8(&output).unwrap_or("Unwrapping output failed in send_identification_data"),
+             "option name Hash type spin default 1 min 1 max 128\n\
+             option name NalimovPath type string default c:\\\n\
+             option name Clear Hash type button\n\
+             uciok\n");
+}
+

tests/options.rs

@@ -0,0 +1,51 @@
+extern crate uci;
+
+use uci::options::constants;
+use uci::options::{ EngineOption, EngineOptionType, EngineOptionDataType, EngineOptionData };
+
+#[test]
+fn engine_option_equality() {
+  let name = constants::HASH;
+  let option_type = EngineOptionType::Spin;
+  let option_data1 =
+    [(EngineOptionDataType::DefaultVal, EngineOptionData::Int(1)),
+     (EngineOptionDataType::Min, EngineOptionData::Int(1)),
+     (EngineOptionDataType::Max, EngineOptionData::Int(128))
+    ].iter().cloned().collect();
+  let option_data2 =
+    [(EngineOptionDataType::DefaultVal, EngineOptionData::Int(1)),
+     (EngineOptionDataType::Min, EngineOptionData::Int(1)),
+     (EngineOptionDataType::Max, EngineOptionData::Int(128))
+    ].iter().cloned().collect();
+
+    let o1 = EngineOption {
+      name: name,
+      option_type: option_type,
+      option_data: option_data1,
+    };
+
+    let o2 = EngineOption {
+      name: name,
+      option_type: option_type,
+      option_data: option_data2,
+    };
+
+    assert_eq!(o1, o2);
+}
+
+#[test]
+fn engine_option_string() {
+  let name = constants::HASH;
+  let option_type = EngineOptionType::Spin;
+  let option_data =
+    [(EngineOptionDataType::DefaultVal, EngineOptionData::Int(1)),
+     (EngineOptionDataType::Min, EngineOptionData::Int(1)),
+     (EngineOptionDataType::Max, EngineOptionData::Int(128))
+    ].iter().cloned().collect();
+
+    let o = EngineOption { name, option_type, option_data, };
+
+    let expected = "option name Hash type spin default 1 min 1 max 128\n";
+    assert_eq!(o.to_string(), expected);
+}
+

tests/parser.rs

@@ -0,0 +1,71 @@
+// TODO: Write parser tests before implementing the parser.
+//       Start with setoption and branch out from there. The commands are finite so you should be able
+//       to write a test for each one. Take the time to do this right so that the rest of this project is
+//       a cakewalk
+//
+//       // Also remember to fix the constant thing noted in the lib.rs for uci.... lol
+//
+
+extern crate uci;
+
+use uci::parser;
+
+#[test]
+fn parse_setoption() {
+  let s = "setoption name Hash value 32\n";
+  let expected = parser::TokenResult::new(
+    parser::Token::SETOPTION,
+    parser::Left(Some(
+      [
+        ("name", parser::CommandValue::Text(String::from("Hash"))),
+        ("value", parser::CommandValue::Int(32)),
+      ].iter().cloned().collect())
+  ));
+
+  let p = parser::Parser::new();
+
+  match p.parse(s) {
+    Ok(r) => {
+      assert_eq!(r, expected);
+    }
+    Err(_) => panic!("failed to parse setoption as expected")
+  }
+}
+
+#[test]
+fn parse_uci() {
+  let s = "uci\n";
+  let expected = parser::TokenResult::new(
+    parser::Token::UCI, parser::Left(None);
+
+  let p = parser::Parser::new();
+
+  match p.parse(s) {
+    Ok(r) => {
+      assert_eq!(r, expected);
+    }
+    Err(_) => panic!("failed to parse uci as expected")
+  }
+}
+
+#[test]
+fn parse_debug() {
+  let s = "debug on\n";
+  let expected = parser::TokenResult::new(
+    parser::Token::DEBUG, parser::Right("on")
+  );
+
+  let p = parser::Parser::new();
+
+  match p.parse(s) {
+    Ok(r) => {
+      assert_eq!(r, expected);
+    }
+    Err(_) => panic!("failed to parse uci as expected")
+  }
+}
+
+#[test]
+fn bad_parse() {
+  assert_eq!(true, false);
+}