Implement row_count

This does not seem to be directly called, but it
should be a convenient short-hand.

src/model/message.rs

@@ -51,7 +51,13 @@ pub struct MessageModel {
 }
 
 impl MessageModel {
-    fn load(&mut self, sid: i64, _peer_name: QString) {
+    #[allow(dead_code)]
+    pub fn row_count(&self) -> i32 {
+        log::trace!("rowCount called, returning {}", self.messages.len());
+        self.messages.len() as i32
+    }
+
+    pub fn load(&mut self, sid: i64, _peer_name: QString) {
         (self as &mut dyn QAbstractListModel).begin_reset_model();
 
         self.messages.clear();

tests/model_message.rs

-// TODO: Write the qt5-model tests here
+use rstest::rstest;
 
+use harbour_whisperfish::model::MessageModel;
+use harbour_whisperfish::store::Storage;
+use harbour_whisperfish::store::{NewMessage, NewSession};
+use qmetaobject::QString;
+
+mod common;
+use common::*;
+
+#[rstest]#[actix_rt::test]
+async fn test_load_and_row_count(in_memory_db: Storage) {
+    let session_config = NewSession {
+        source: String::from("+358501234567"),
+        message: String::from("whisperfish on paras:DDDD ja signal:DDD"),
+        timestamp: 0,
+        sent: true,
+        received: false,
+        unread: false,
+        is_group: false,
+        group_id: None,
+        group_name: None,
+        group_members: None,
+        has_attachment: false,
+    };
+
+    setup_db(&in_memory_db);
+    setup_session(&in_memory_db, &session_config);
+
+    let new_messages = vec![NewMessage {
+        session_id: 1,
+        source: String::from("+358501234567"),
+        text: String::from("nyt joni ne velat!"),
+        timestamp: 1024,
+        sent: false,
+        received: true,
+        flags: 0,
+        attachment: None,
+        mime_type: None,
+        has_attachment: false,
+        outgoing: false,
+    }];
+
+    setup_messages(&in_memory_db, new_messages);
+
+    // Actual testing
+    let mut mm = MessageModel::default();
+
+    assert_eq!(mm.row_count(), 0);
+    mm.load(1, QString::from("WHY IS THIS NEEDED WHEN IT ISN'T NEEDED ELSEWHERE?!"));
+    assert_eq!(mm.row_count(), 1);
+}