Add the get_sd_card_usage function to the Storage struct

This patch adds support for the NK_get_SD_usage_data function.  It
returns a range of the SD card that has not been accessed during this
power cycle.

1 files changed, 9 insertions, 1 deletions

diff --git a/tests/device.rs b/tests/device.rs
index f2a7031..070f3c1 100644
--- a/tests/device.rs
+++ b/tests/device.rs
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2019 Robin Krahl <robin.krahl@ireas.org>
+// Copyright (C) 2018-2020 Robin Krahl <robin.krahl@ireas.org>
 // SPDX-License-Identifier: MIT
 
 mod util;
@@ -640,6 +640,14 @@ fn clear_new_sd_card_warning(device: Storage) {
 }
 
 #[test_device]
+fn get_sd_card_usage(device: Storage) {
+    let range = unwrap_ok!(device.get_sd_card_usage());
+
+    assert!(range.end >= range.start);
+    assert!(range.end <= 100);
+}
+
+#[test_device]
 fn export_firmware(device: Storage) {
     let mut device = device;
     assert_cmd_err!(