added tests for drv_disk

src/drivers/drv_disk.rs

@@ -40,3 +40,39 @@ impl DrvDisk {
     }
 
 }
+
+#[cfg(test)]
+mod test {
+    use super::DrvDisk;
+    use crate::Disk;
+
+    #[test]
+    fn test_init_driver() {
+        let disk = Disk::init_disk();
+        let _ = DrvDisk::init_drv_disk(disk);
+    }
+
+    #[test]
+    fn test_read_write_disk() {
+        let disk = Disk::init_disk();
+        let mut drv_disk = DrvDisk::init_drv_disk(disk);
+
+        let mut data = Vec::new();
+        data.push(0 as u8); data.push(0 as u8); data.push(0 as u8); data.push(0 as u8);
+
+        let mut data1 = Vec::new();
+        data1.push(1 as u8); data1.push(1 as u8); data1.push(1 as u8); data1.push(1 as u8);
+
+        let mut data2: Vec<u8> = Vec::new();
+
+        drv_disk.write_sector(0, &mut data);
+        drv_disk.write_sector(1, &mut data1);
+        drv_disk.read_sector(1, &mut data2);
+
+        assert_eq!(data1,data2);
+        assert_ne!(data,data1);
+        assert_ne!(data,data2);
+    }
+
+    
+}