[#13] Further overhaul of the project structure for better testing

src/ivago/controller/structs/basic_date.rs

@@ -10,6 +10,7 @@ use std::convert::TryFrom;
 
 /// This class is a simple wrapper around chrono's DateTime. Its sole purpose
 /// is to avoid error E0117.
+#[derive(Debug, PartialEq)]
 pub struct BasicDate(pub DateTime<Tz>);
 
 /// This allows us to use BasicDate as a query parameter in our routes.
@@ -54,3 +55,15 @@ impl Serialize for BasicDate {
         serializer.serialize_str(&String::from(self))
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_invalid_date() {
+        let val = "2012-13-12";
+        let date = BasicDate::try_from(val);
+        assert_eq!(date, Err(FejError::InvalidArgument));
+    }
+}