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+/*
+    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#include "hal.h"
+#include "mfs_test_root.h"
+
+/**
+ * @file    mfs_test_sequence_003.c
+ * @brief   Test Sequence 003 code.
+ *
+ * @page mfs_test_sequence_003 [3] API Invalid Cases tests
+ *
+ * File: @ref mfs_test_sequence_003.c
+ *
+ * <h2>Description</h2>
+ * This test sequence tests the error coded returned by the various
+ * APIs when called when the system is not initialized.
+ *
+ * <h2>Test Cases</h2>
+ * - @subpage mfs_test_003_001
+ * - @subpage mfs_test_003_002
+ * .
+ */
+
+/****************************************************************************
+ * Shared code.
+ ****************************************************************************/
+
+#include "hal_mfs.h"
+
+/****************************************************************************
+ * Test cases.
+ ****************************************************************************/
+
+/**
+ * @page mfs_test_003_001 [3.1] Initialization error from APIs
+ *
+ * <h2>Description</h2>
+ * The API functions are invoked without prior initialization.
+ *
+ * <h2>Test Steps</h2>
+ * - [3.1.1] The function mfsErase() is called, MFS_ERR_INV_STATE is
+ *   expected.
+ * - [3.1.2] The function mfsWriteRecord() is called, MFS_ERR_INV_STATE
+ *   is expected.
+ * - [3.1.3] The function mfsEraseRecord() is called, MFS_ERR_INV_STATE
+ *   is expected.
+ * - [3.1.4] The function mfsReadRecord() is called, MFS_ERR_INV_STATE
+ *   is expected.
+ * - [3.1.5] The function mfsPerformGarbageCollection() is called,
+ *   MFS_ERR_INV_STATE is expected.
+ * .
+ */
+
+static void mfs_test_003_001_execute(void) {
+
+  /* [3.1.1] The function mfsErase() is called, MFS_ERR_INV_STATE is
+     expected.*/
+  test_set_step(1);
+  {
+    mfs_error_t err = mfsErase(&mfs1);
+    test_assert(err == MFS_ERR_INV_STATE, "mfsErase() returned wrong status");
+  }
+  test_end_step(1);
+
+  /* [3.1.2] The function mfsWriteRecord() is called, MFS_ERR_INV_STATE
+     is expected.*/
+  test_set_step(2);
+  {
+    mfs_error_t err = mfsWriteRecord(&mfs1, 1, 16, mfs_buffer);
+    test_assert(err == MFS_ERR_INV_STATE, "mfsWriteRecord() returned wrong status");
+  }
+  test_end_step(2);
+
+  /* [3.1.3] The function mfsEraseRecord() is called, MFS_ERR_INV_STATE
+     is expected.*/
+  test_set_step(3);
+  {
+    mfs_error_t err = mfsEraseRecord(&mfs1, 1);
+    test_assert(err == MFS_ERR_INV_STATE, "mfsEraseRecord() returned wrong status");
+  }
+  test_end_step(3);
+
+  /* [3.1.4] The function mfsReadRecord() is called, MFS_ERR_INV_STATE
+     is expected.*/
+  test_set_step(4);
+  {
+    size_t size = sizeof mfs_buffer;
+    mfs_error_t err = mfsReadRecord(&mfs1, 1, &size, mfs_buffer);
+    test_assert(err == MFS_ERR_INV_STATE, "mfsReadRecord() returned wrong status");
+  }
+  test_end_step(4);
+
+  /* [3.1.5] The function mfsPerformGarbageCollection() is called,
+     MFS_ERR_INV_STATE is expected.*/
+  test_set_step(5);
+  {
+    mfs_error_t err = mfsPerformGarbageCollection(&mfs1);
+    test_assert(err == MFS_ERR_INV_STATE, "mfsPerformGarbageCollection() returned wrong status");
+  }
+  test_end_step(5);
+}
+
+static const testcase_t mfs_test_003_001 = {
+  "Initialization error from APIs",
+  NULL,
+  NULL,
+  mfs_test_003_001_execute
+};
+
+/**
+ * @page mfs_test_003_002 [3.2] Erasing non existing record
+ *
+ * <h2>Description</h2>
+ * An erase operation is attempted on an non-existing record.
+ *
+ * <h2>Test Steps</h2>
+ * - [3.2.1] Record one is erased, the error MFS_ERR_NOT_FOUND is
+ *   expected.
+ * .
+ */
+
+static void mfs_test_003_002_setup(void) {
+  mfsStart(&mfs1, &mfscfg1);
+  mfsErase(&mfs1);
+}
+
+static void mfs_test_003_002_teardown(void) {
+  mfsStop(&mfs1);
+}
+
+static void mfs_test_003_002_execute(void) {
+
+  /* [3.2.1] Record one is erased, the error MFS_ERR_NOT_FOUND is
+     expected.*/
+  test_set_step(1);
+  {
+    mfs_error_t err;
+
+    err = mfsEraseRecord(&mfs1, 1);
+    test_assert(err != MFS_NO_ERROR, "record was present");
+    test_assert(err == MFS_ERR_NOT_FOUND, "invalid error code");
+  }
+  test_end_step(1);
+}
+
+static const testcase_t mfs_test_003_002 = {
+  "Erasing non existing record",
+  mfs_test_003_002_setup,
+  mfs_test_003_002_teardown,
+  mfs_test_003_002_execute
+};
+
+/****************************************************************************
+ * Exported data.
+ ****************************************************************************/
+
+/**
+ * @brief   Array of test cases.
+ */
+const testcase_t * const mfs_test_sequence_003_array[] = {
+  &mfs_test_003_001,
+  &mfs_test_003_002,
+  NULL
+};
+
+/**
+ * @brief   API Invalid Cases tests.
+ */
+const testsequence_t mfs_test_sequence_003 = {
+  "API Invalid Cases tests",
+  mfs_test_sequence_003_array
+};