test tsheet.add(x, tag)

src/main.rs

@@ -54,7 +54,7 @@ mod test_save_load {
    use super::*;
 
    #[test]
-   fn test_save_load_empty() {
+   fn test_empty() {
       let got = _load(&mut "xs: []".as_bytes()).expect("failed to parse 'xs: []' tsheet");
       assert_eq!(got, TSheet{xs: vec![]});
 
@@ -88,6 +88,10 @@ impl TSheet {
          .for_each(|x| result.xs.push(x.clone()));
       result
    }
+
+   fn add(&mut self, x: String, tag: String) {
+      self.xs.push(new_x(SystemTime::now(), x, tag));
+   }
 }
 
 impl X {
@@ -96,12 +100,32 @@ impl X {
    }
 }
 
+fn new_x(t: SystemTime, x: String, tag: String) -> X {
+   X{
+      t: t.duration_since(UNIX_EPOCH).unwrap().as_secs() as i64,
+      x: x,
+      tag: tag,
+   }
+}
+
 #[cfg(test)]
 mod test_tsheet {
    use super::*;
 
    #[test]
-   fn test_tsheet_since_date() {
+   fn test_add() {
+      let mut given = TSheet{xs: vec![
+         X{t: 1, x: "def".to_string(), tag: "abc".to_string()},
+      ]};
+      given.add("ghi".to_string(), "".to_string());
+      assert_eq!(given.xs.len(), 2);
+      assert!(given.xs[1].t != 1);
+      assert_eq!(given.xs[1].x, "ghi".to_string());
+      assert_eq!(given.xs[1].tag, "".to_string());
+   }
+
+   #[test]
+   fn test_since_date() {
       let given = TSheet{xs: vec![
          X{t: 1, x: "def".to_string(), tag: "abc".to_string()},
          X{t: 2, x: "ghi".to_string(), tag: "".to_string()},