Add skeleton for URL/file generators

3 files changed, 101 insertions, 0 deletions

diff --git a/CLI/rust/Cargo.lock b/CLI/rust/Cargo.lock
index 1c71ee6..07cfd26 100644
--- a/CLI/rust/Cargo.lock
+++ b/CLI/rust/Cargo.lock
@@ -1,6 +1,15 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
 [[package]]
+name = "aho-corasick"
+version = "0.7.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7404febffaa47dac81aa44dba71523c9d069b1bdc50a77db41195149e17f68e5"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
 name = "atty"
 version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -69,6 +78,7 @@ dependencies = [
  "clap",
  "mocktopus",
  "rand",
+ "regex",
  "terminal_size",
 ]
 
@@ -130,6 +140,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1482821306169ec4d07f6aca392a4681f66c75c9918aa49641a2595db64053cb"
 
 [[package]]
+name = "memchr"
+version = "2.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
+
+[[package]]
 name = "mocktopus"
 version = "0.7.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -244,6 +260,23 @@ dependencies = [
 ]
 
 [[package]]
+name = "regex"
+version = "1.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "957056ecddbeba1b26965114e191d2e8589ce74db242b6ea25fc4062427a5c19"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.6.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "24d5f089152e60f62d28b835fbff2cd2e8dc0baf1ac13343bef92ab7eed84548"
+
+[[package]]
 name = "strsim"
 version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
diff --git a/CLI/rust/Cargo.toml b/CLI/rust/Cargo.toml
index a741a3d..752c526 100644
--- a/CLI/rust/Cargo.toml
+++ b/CLI/rust/Cargo.toml
@@ -7,6 +7,7 @@ edition = "2018"
 [dependencies]
 clap = { version = "3.0.0-beta.2", features = ["wrap_help"] }
 rand = "0.8.3"
+regex = "1.4.5"
 terminal_size = "0.1.16"
 
 [dev-dependencies]
diff --git a/CLI/rust/src/game_of_life/generators/input.rs b/CLI/rust/src/game_of_life/generators/input.rs
index 1f10a22..c2b2bb0 100644
--- a/CLI/rust/src/game_of_life/generators/input.rs
+++ b/CLI/rust/src/game_of_life/generators/input.rs
@@ -1,5 +1,6 @@
 use crate::game_of_life::opts::Opts;
 use crate::game_of_life::universe::Universe;
+use regex::Regex;
 
 #[cfg(test)]
 use mocktopus::macros::mockable;
@@ -12,5 +13,71 @@ use mocktopus::macros::mockable;
 /// used as the seeding input
 #[cfg_attr(test, mockable)]
 pub(crate) fn new(opts: Opts) -> Universe {
+    let input = opts.input.clone().unwrap();
+    match Regex::new("^(ht|f)?tp(s)?://*").unwrap().is_match(&input) {
+        true => generate_url_data(opts),
+        false => generate_file_data(opts),
+    }
+}
+
+#[cfg(test)]
+mod new {
+    use super::*;
+    use mocktopus::mocking::*;
+
+    fn universe_mock(opts: Opts) -> Universe {
+        Universe {
+            opts,
+            current: vec![vec![]],
+            future: vec![vec![]],
+        }
+    }
+
+    #[test]
+    fn with_url() {
+        let opts = Opts {
+            seed: 1337,
+            input: Some(String::from("https://example.com")),
+            width: 13,
+            height: 13,
+            live_cell: 'L',
+            dead_cell: 'D',
+            delay: 13,
+        };
+
+        generate_file_data.mock_safe(|_| panic!());
+        generate_url_data.mock_safe(|opts| MockResult::Return(universe_mock(opts)));
+        assert_eq!(new(opts.clone()), universe_mock(opts.clone()));
+    }
+
+    #[test]
+    fn with_file() {
+        let opts = Opts {
+            seed: 1337,
+            input: Some(String::from("./example.txt")),
+            width: 13,
+            height: 13,
+            live_cell: 'L',
+            dead_cell: 'D',
+            delay: 13,
+        };
+
+        generate_file_data.mock_safe(|opts| MockResult::Return(universe_mock(opts)));
+        generate_url_data.mock_safe(|_| panic!());
+        assert_eq!(new(opts.clone()), universe_mock(opts.clone()));
+    }
+}
+
+/// Reads a local file and parses it, converting alpha-numerical chars into living cells
+/// in a newly generated universe simulation
+#[cfg_attr(test, mockable)]
+fn generate_file_data(_opts: Opts) -> Universe {
+    unimplemented!()
+}
+
+/// Reads a URL and parses it, converting alpha-numerical chars into living cells
+/// in a newly generated universe simulation
+#[cfg_attr(test, mockable)]
+fn generate_url_data(_opts: Opts) -> Universe {
     unimplemented!()
 }