parent level DB has multiple tasks that each have a file and file modified timestamp associated

pttodoer/src/main.rs

@@ -74,6 +74,22 @@ impl DB {
       }
       Ok(DB(result))
    }
+
+   pub fn incomplete(&self) -> Tasks {
+      let mut result = Tasks::new();
+      for set in &self.0 {
+         result.0.extend(set.tasks.incomplete().0);
+      }
+      result
+   }
+
+   pub fn due(&self) -> Tasks {
+      let mut result = Tasks::new();
+      for set in &self.0 {
+         result.0.extend(set.tasks.due().0);
+      }
+      result
+   }
 }
 
 #[cfg(test)]
@@ -82,18 +98,26 @@ mod test_taskss {
 
    #[test]
    fn read_dir_files() {
-      _ = DB::new("./src/testdata/taskss.d/files.d".to_string()).expect("failed to construct from dir of files");
+      let db = DB::new("./src/testdata/taskss.d/files.d".to_string()).expect("failed to construct from dir of files");
+      assert_eq!(2, db.0.len());
+      assert_eq!(2, db.due().len());
+      assert_eq!(2, db.incomplete().len());
    }
 
    #[test]
    fn read_dir_file() {
-      _ = DB::new("./src/testdata/taskss.d/file.d".to_string()).expect("failed to construct from dir of a single file");
+      let db = DB::new("./src/testdata/taskss.d/file.d".to_string()).expect("failed to construct from dir of a single file");
+      assert_eq!(1, db.0.len());
+      assert_eq!(1, db.due().len());
+      assert_eq!(1, db.incomplete().len());
    }
 
    #[test]
    fn read_single_file() {
       let db = DB::new("./src/testdata/taskss.d/single_file.yaml".to_string()).expect("failed to construct from single file");
       assert_eq!(1, db.0.len());
+      assert_eq!(1, db.due().len());
+      assert_eq!(2, db.incomplete().len());
    }
 }
 
@@ -202,6 +226,14 @@ impl Tasks {
       self.0.len()
    }
 
+   pub fn incomplete(&self) -> Tasks {
+      Tasks(self.0.iter()
+         .filter(|x| !x.is_done())
+         .map(|x| x.clone())
+         .collect()
+      )
+   }
+
    pub fn due(&self) -> Tasks {
       Tasks(self.0.iter()
          .filter(|x| x.is_due())