From e7c14ea67e4a39789e7c1dd3a264c61a9c14050e Mon Sep 17 00:00:00 2001
From: Hunter Kvalevog <hunter@kvog.sh>
Date: Sun, 27 Sep 2026 15:47:45 -0500
Subject: rustlings: complete 15

---
 rustlings/solutions/15_traits/traits3.rs | 36 ++++++++++++++++++++++++++++++--
 1 file changed, 34 insertions(+), 2 deletions(-)

(limited to 'rustlings/solutions/15_traits/traits3.rs')

diff --git a/rustlings/solutions/15_traits/traits3.rs b/rustlings/solutions/15_traits/traits3.rs
index dcf2377..3d8ec85 100644
--- a/rustlings/solutions/15_traits/traits3.rs
+++ b/rustlings/solutions/15_traits/traits3.rs
@@ -1,4 +1,36 @@
+trait Licensed {
+    fn licensing_info(&self) -> String {
+        "Default license".to_string()
+    }
+}
+
+struct SomeSoftware {
+    version_number: i32,
+}
+
+struct OtherSoftware {
+    version_number: String,
+}
+
+impl Licensed for SomeSoftware {}
+impl Licensed for OtherSoftware {}
+
 fn main() {
-    // DON'T EDIT THIS SOLUTION FILE!
-    // It will be automatically filled after you finish the exercise.
+    // You can optionally experiment here.
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn is_licensing_info_the_same() {
+        let licensing_info = "Default license";
+        let some_software = SomeSoftware { version_number: 1 };
+        let other_software = OtherSoftware {
+            version_number: "v2.0.0".to_string(),
+        };
+        assert_eq!(some_software.licensing_info(), licensing_info);
+        assert_eq!(other_software.licensing_info(), licensing_info);
+    }
 }
-- 
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