use macros

src/main.rs

@@ -2,7 +2,34 @@
 extern crate ansi_term;
 
 use quicli::prelude::*;
-use ansi_term::Colour::{Red, Yellow};
+use ansi_term::Colour::{Red, Yellow, Green};
+
+macro_rules! verify {
+    ( $str:expr, $left:expr, $right:expr ) => {
+        if ($left == $right) {
+            println!("{} {}", Green.bold().paint("PASS"), $str);
+        } else {
+            println!("{} {}", Red.bold().paint("FAIL"), $str);
+            println!("\tYou submitted {}, but that's not correct!", $left);
+            println!("\tPlease correct your code to make this test pass!");
+        }
+    }
+}
+
+macro_rules! verify_easy {
+    ( $str:expr, $left:expr, $right:expr ) => {
+        if ($left == $right) {
+            println!("{} {}", Green.bold().paint("PASS"), $str);
+        } else {
+            println!("{} {}", Red.bold().paint("FAIL"), $str);
+            println!("\tExpected: {}", $right);
+            println!("\tGot: {}", $left);
+            println!("\tPlease correct your code to make this test pass!");
+        }
+    }
+}
+
+mod about_variables;
 
 #[derive(Debug, StructOpt)]
 struct Cli {
@@ -10,12 +37,10 @@ struct Cli {
 }
 
 main!(|args: Cli| {
-    match args.exercise {
-        Some(e) => {
-            println!("selected {}", e);
-        }
-        None => {
-            println!("Welcome to {}", Yellow.paint("Rustlings"));
-        }
+    if let Some(e) = args.exercise {
+        println!("selected {}", e);
+    } else {
+        println!("Welcome to {}", Yellow.paint("rustlings"));
+        verify!("One equals one", 1, 2);
     }
 });