From 4741cfd14bf073a05d220c123000a75599baa224 Mon Sep 17 00:00:00 2001
From: Harald Eilertsen <haraldei@anduin.net>
Date: Thu, 22 Mar 2018 21:04:22 +0100
Subject: Refactor moving is_pwned check to separate function.

Also moves rest of reporting to main.
---
 src/main.rs | 56 +++++++++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 43 insertions(+), 13 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 4e7cbb7..c36ebd6 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -67,6 +67,16 @@ impl Password {
             rest: rest,
         }
     }
+
+    pub fn is_pwned(&self, hashes: &str) -> usize {
+        if let Some(pos) = hashes.find(&self.rest) {
+            if let Some(res) = hashes[pos..].lines().take(1).collect::<Vec<_>>().pop() {
+                return res.split(':').skip(1).collect::<Vec<_>>().pop().unwrap().parse().unwrap();
+            }
+        }
+
+        0
+    }
 }
 
 #[test]
@@ -76,20 +86,34 @@ fn test_creating_new_password() {
     assert_eq!(&pw.rest, "910077770C8340F63CD2DCA2AC1F120444F");
 }
 
-fn check(pw: Password) -> Result<bool, reqwest::Error>{
-    let uri = &format!("https://api.pwnedpasswords.com/range/{}", pw.range);
-    let hashes = reqwest::get(uri)?.text()?;
+#[test]
+fn test_matching_response_with_no_matches() {
+    let pw = Password::new("Passw0rd");
+    let hashes = "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA:42";
 
-    if let Some(pos) = hashes.find(&pw.rest) {
-        if let Some(res) = hashes[pos..].lines().take(1).collect::<Vec<_>>().pop() {
-            let count = res.split(':').skip(1).collect::<Vec<_>>().pop().unwrap();
-            println!("The password {} was found in {} breaches", pw.pw, count);
-        }
+    assert_eq!(0, pw.is_pwned(&hashes));
+}
 
-        return Ok(true);
-    }
+#[test]
+fn test_matching_response_with_one_match() {
+    let pw = Password::new("Passw0rd");
+    let hashes = "910077770C8340F63CD2DCA2AC1F120444F:42";
+
+    assert_eq!(42, pw.is_pwned(&hashes));
+}
 
-    Ok(false)
+#[test]
+fn test_matching_response_with_multiple_matches() {
+    let pw = Password::new("Passw0rd");
+    let hashes = "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA:3\n910077770C8340F63CD2DCA2AC1F120444F:42\n00000000000000000000:1";
+
+    assert_eq!(42, pw.is_pwned(&hashes));
+}
+
+fn check(pw: Password) -> Result<usize, reqwest::Error>{
+    let uri = &format!("https://api.pwnedpasswords.com/range/{}", pw.range);
+    let hashes = reqwest::get(uri)?.text()?;
+    Ok(pw.is_pwned(&hashes))
 }
 
 fn print_usage() {
@@ -109,8 +133,14 @@ fn main() {
     for pw in passwords {
         match check(Password::new(&pw)) {
             Err(e) => println!("{}", e.description()),
-            Ok(true) => println!("Password is PWNED!"),
-            Ok(false) => println!("Password was not found in any breaches.")
+            Ok(num) => {
+                if num > 0 {
+                    println!("Password is PWNED! It was found in {} breaches.", num);
+                }
+                else {
+                    println!("Password was not found in any breaches");
+                }
+            }
         }
     }
 }
-- 
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