initial commit

exercises/06_ticket_management/08_impl_trait/src/lib.rs

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+// TODO: Implement the `in_progress` method. It must return an iterator over the tickets in
+//  `TicketStore` with status set to `Status::InProgress`.
+use ticket_fields::{TicketDescription, TicketTitle};
+
+#[derive(Clone)]
+pub struct TicketStore {
+    tickets: Vec<Ticket>,
+}
+
+#[derive(Clone, Debug, PartialEq)]
+pub struct Ticket {
+    pub title: TicketTitle,
+    pub description: TicketDescription,
+    pub status: Status,
+}
+
+#[derive(Clone, Debug, Copy, PartialEq)]
+pub enum Status {
+    ToDo,
+    InProgress,
+    Done,
+}
+
+impl TicketStore {
+    pub fn new() -> Self {
+        Self {
+            tickets: Vec::new(),
+        }
+    }
+
+    pub fn add_ticket(&mut self, ticket: Ticket) {
+        self.tickets.push(ticket);
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use ticket_fields::test_helpers::{ticket_description, ticket_title};
+
+    #[test]
+    fn in_progress() {
+        let mut store = TicketStore::new();
+
+        let todo = Ticket {
+            title: ticket_title(),
+            description: ticket_description(),
+            status: Status::ToDo,
+        };
+        store.add_ticket(todo);
+
+        let in_progress = Ticket {
+            title: ticket_title(),
+            description: ticket_description(),
+            status: Status::InProgress,
+        };
+        store.add_ticket(in_progress.clone());
+
+        let in_progress_tickets: Vec<&Ticket> = store.in_progress().collect();
+        assert_eq!(in_progress_tickets.len(), 1);
+        assert_eq!(in_progress_tickets[0], &in_progress);
+    }
+}