From 06e7a1a32a8711bae81560800ed9203042b30739 Mon Sep 17 00:00:00 2001
From: Lucjan Bryndza <lucjan.bryndza@mudita.com>
Date: Wed, 16 Dec 2020 15:40:11 +0100
Subject: [PATCH] [EGD-4758] Add Littlefs unit test

This is an initial implementation of littlefs
unit tests
---
 module-vfs/tests/CMakeLists.txt               | 22 ++++++++++
 module-vfs/tests/genlfstestimg.sh             | 43 +++++++++++++++++++
 .../tests/unittest_filesystem_littlefs.cpp    | 13 ++++++
 3 files changed, 78 insertions(+)
 create mode 100755 module-vfs/tests/genlfstestimg.sh
 create mode 100644 module-vfs/tests/unittest_filesystem_littlefs.cpp

diff --git a/module-vfs/tests/CMakeLists.txt b/module-vfs/tests/CMakeLists.txt
index cc22d84db3d026fb52c78711fcb4d02c435f7984..28368a205eb554ca3118e956f32942b43278afea 100644
--- a/module-vfs/tests/CMakeLists.txt
+++ b/module-vfs/tests/CMakeLists.txt
@@ -26,6 +26,28 @@ add_catch2_executable(
         module-vfs
 )
 
+set(LITTLEFS_IMAGE "lfstest.img")
+
+add_custom_command( 
+    OUTPUT ${LITTLEFS_IMAGE}
+    COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/genlfstestimg.sh 1G ${LITTLEFS_IMAGE}
+    WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+    DEPENDS genlittlefs
+)
+
+add_custom_target( test_lfs_image DEPENDS ${LITTLEFS_IMAGE} )
+
+add_catch2_executable(
+    NAME vfs-littlefs
+    SRCS
+        ${CMAKE_CURRENT_LIST_DIR}/unittest_filesystem_littlefs.cpp
+    LIBS
+        module-vfs
+    DEPS
+        test_lfs_image
+)
+
+
 # prepare test assets
 set(ASSETS_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/test_dir")
 set(ASSETS_TARGET_DIR "${CMAKE_BINARY_DIR}/module-vfs/test_dir")
diff --git a/module-vfs/tests/genlfstestimg.sh b/module-vfs/tests/genlfstestimg.sh
new file mode 100755
index 0000000000000000000000000000000000000000..cfddfcc9cf0246cf9514b5726e949efb88a0e506
--- /dev/null
+++ b/module-vfs/tests/genlfstestimg.sh
@@ -0,0 +1,43 @@
+#!/bin/bash -e
+#Copyright (c) 2017-2020, Mudita Sp. z.o.o. All rights reserved.
+#For licensing, see https://github.com/mudita/MuditaOS/LICENSE.md
+
+usage() {
+cat << ==usage
+Usage: $(basename $0) [image_size] [image_file]
+	image_size Target disk image size
+	image_file Target image name
+==usage
+}
+
+
+if [ $# -ne 2 ]; then
+	echo "Error! Invalid argument count"
+	usage
+	exit -1
+fi
+IMAGE_SIZE="$1"
+IMAGE_FILE="$2"
+
+_REQ_CMDS="sfdisk truncate"
+for cmd in $_REQ_CMDS; do
+	if [ ! $(command -v $cmd) ]; then
+		echo "Error! $cmd is not installed, please use 'sudo apt install' for install required tool"
+		exit -1
+	fi
+done
+truncate -s $IMAGE_SIZE $IMAGE_FILE
+
+SECTOR_START=2048
+SECTOR_END=$(( $(stat -c "%s" $IMAGE_FILE)/512 - $SECTOR_START))
+
+
+
+sfdisk $IMAGE_FILE << ==sfdisk
+label: dos
+unit: sectors
+
+/dev/sdz1 : start=      2048, size=$SECTOR_END, type=9e, bootable
+==sfdisk
+./genlittlefs --image $IMAGE_FILE --block_size=4096  --overwrite  --partition_num 1 -- assets/*
+
diff --git a/module-vfs/tests/unittest_filesystem_littlefs.cpp b/module-vfs/tests/unittest_filesystem_littlefs.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..f75cf8445d1d98acb0ac2b88d93eef20689a1ae6
--- /dev/null
+++ b/module-vfs/tests/unittest_filesystem_littlefs.cpp
@@ -0,0 +1,13 @@
+// Copyright (c) 2017-2020, Mudita Sp. z.o.o. All rights reserved.
+// For licensing, see https://github.com/mudita/MuditaOS/LICENSE.md
+#define CATCH_CONFIG_MAIN
+#include <catch2/catch.hpp>
+#include <purefs/fs/filesystem.hpp>
+#include <purefs/blkdev/disk_manager.hpp>
+#include <purefs/blkdev/disk_image.hpp>
+#include <purefs/fs/drivers/filesystem_vfat.hpp>
+#include <sys/statvfs.h>
+#include <sys/stat.h>
+
+TEST_CASE("Littlefs: Basic tests")
+{}