From 9b7a5c041e9856379154b109b2ee2f3e979d70f7 Mon Sep 17 00:00:00 2001
From: mo8it <mo8it@proton.me>
Date: Wed, 26 Jun 2024 15:54:18 +0200
Subject: errors4 solution

---
 solutions/13_error_handling/errors4.rs | 43 +++++++++++++++++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

(limited to 'solutions')

diff --git a/solutions/13_error_handling/errors4.rs b/solutions/13_error_handling/errors4.rs
index 4e18198..c43f493 100644
--- a/solutions/13_error_handling/errors4.rs
+++ b/solutions/13_error_handling/errors4.rs
@@ -1 +1,42 @@
-// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
+#[derive(PartialEq, Debug)]
+enum CreationError {
+    Negative,
+    Zero,
+}
+
+#[derive(PartialEq, Debug)]
+struct PositiveNonzeroInteger(u64);
+
+impl PositiveNonzeroInteger {
+    fn new(value: i64) -> Result<Self, CreationError> {
+        if value == 0 {
+            Err(CreationError::Zero)
+        } else if value < 0 {
+            Err(CreationError::Negative)
+        } else {
+            Ok(Self(value as u64))
+        }
+    }
+}
+
+fn main() {
+    // You can optionally experiment here.
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_creation() {
+        assert_eq!(
+            PositiveNonzeroInteger::new(10),
+            Ok(PositiveNonzeroInteger(10)),
+        );
+        assert_eq!(
+            PositiveNonzeroInteger::new(-10),
+            Err(CreationError::Negative),
+        );
+        assert_eq!(PositiveNonzeroInteger::new(0), Err(CreationError::Zero));
+    }
+}
-- 
cgit v1.2.3