Import Mbed OS hard-float snapshot

storage/filesystem/littlefsv2/tests/TESTS/filesystem_recovery/resilience/main.cpp

@@ -0,0 +1,104 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2017 ARM Limited
+ *
+ * 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 "mbed.h"
+#include "unity.h"
+#include "utest.h"
+#include "test_env.h"
+
+#include "atomic_usage.h"
+#include "ObservingBlockDevice.h"
+
+using namespace utest::v1;
+
+// test configuration
+#ifndef MBED_TEST_SIM_BLOCKDEVICE
+#error [NOT_SUPPORTED] Simulation block device required for resilience tests
+#endif
+
+#ifndef MBED_TEST_SIM_BLOCKDEVICE_DECL
+#define MBED_TEST_SIM_BLOCKDEVICE_DECL MBED_TEST_SIM_BLOCKDEVICE bd(MBED_TEST_BLOCK_COUNT*512, 1, 1, 512)
+#endif
+
+#ifndef MBED_TEST_BLOCK_COUNT
+#define MBED_TEST_BLOCK_COUNT 64
+#endif
+
+#ifndef MBED_TEST_CYCLES
+#define MBED_TEST_CYCLES 10
+#endif
+
+#ifndef MBED_TEST_TIMEOUT
+#define MBED_TEST_TIMEOUT 480
+#endif
+
+// declarations
+#define STRINGIZE(x) STRINGIZE2(x)
+#define STRINGIZE2(x) #x
+#define INCLUDE(x) STRINGIZE(x.h)
+
+#include INCLUDE(MBED_TEST_SIM_BLOCKDEVICE)
+
+
+/**
+ * Check that the filesystem is valid after every change
+ *
+ * This test is to ensure that littlefs contains a valid filesystem at
+ * all times. This property is required for handling unexpected power
+ * loss.
+ */
+void test_resilience()
+{
+    MBED_TEST_SIM_BLOCKDEVICE_DECL;
+
+    // bring up to get block size
+    bd.init();
+    bd_size_t block_size = bd.get_erase_size();
+    bd.deinit();
+
+    SlicingBlockDevice slice(&bd, 0, MBED_TEST_BLOCK_COUNT * block_size);
+
+    // Setup the test
+    setup_atomic_operations(&slice, true);
+
+    // Run check on every write operation
+    ObservingBlockDevice observer(&slice);
+    observer.attach(check_atomic_operations);
+
+    // Perform operations
+    printf("Performing %i operations on flash\n", MBED_TEST_CYCLES);
+    for (int i = 1; i <= MBED_TEST_CYCLES; i++) {
+        int64_t ret = perform_atomic_operations(&observer);
+        TEST_ASSERT_EQUAL(i, ret);
+    }
+    printf("No errors detected\n");
+}
+
+Case cases[] = {
+    Case("test resilience", test_resilience),
+};
+
+utest::v1::status_t greentea_test_setup(const size_t number_of_cases)
+{
+    GREENTEA_SETUP(MBED_TEST_TIMEOUT, "default_auto");
+    return greentea_test_setup_handler(number_of_cases);
+}
+
+Specification specification(greentea_test_setup, cases, greentea_test_teardown_handler);
+
+int main()
+{
+    Harness::run(specification);
+}