Added db session.

src/morethantext/session.rs

@@ -0,0 +1,62 @@
+#[derive(Clone)]
+pub struct Session {
+    data: Vec<String>,
+    error: Option<String>,
+}
+
+impl Session {
+    pub fn new() -> Self {
+        Self {
+            data: Vec::new(),
+            error: None,
+        }
+    }
+
+    pub fn push(&mut self, id: String) {
+        self.data.push(id);
+    }
+
+    pub fn append(&mut self, mut data: Vec<String>) {
+        self.data.append(&mut data);
+    }
+
+    pub fn get_data(&self) -> Vec<String> {
+        self.data.clone()
+    }
+}
+
+#[cfg(test)]
+mod setup {
+    use super::*;
+
+    #[test]
+    fn add_item() {
+        let mut sess = Session::new();
+        let id = "frog".to_string();
+        sess.push(id.clone());
+        assert!(sess.data.contains(&id), "{} not in {:?}", id, sess.data);
+    }
+
+    #[test]
+    fn add_list() {
+        let mut sess = Session::new();
+        let mut data: Vec<String> = Vec::new();
+        data.push("fred".to_string());
+        data.push("barney".to_string());
+        sess.append(data.clone());
+        assert_eq!(sess.data, data);
+    }
+}
+
+#[cfg(test)]
+mod data {
+    use super::*;
+
+    #[test]
+    fn show_data() {
+        let data = ["pne".to_string(), "two".to_string(), "three".to_string()];
+        let mut sess = Session::new();
+        sess.append(data.to_vec());
+        assert_eq!(sess.get_data(), data);
+    }
+}