Filesystem: Added test for basic filesystem operation on cpp api

Author: geky

features/TESTS/filesystem/fat_filesystem/main.cpp

@@ -0,0 +1,160 @@
+/* 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 "greentea-client/test_env.h"
+#include "unity.h"
+#include "utest.h"
+
+#include "HeapBlockDevice.h"
+#include "FATFileSystem.h"
+#include <stdlib.h>
+#include "retarget.h"
+
+using namespace utest::v1;
+
+#ifndef MBED_EXTENDED_TESTS
+    #error [NOT_SUPPORTED] Filesystem tests not supported by default
+#endif
+
+// Test block device
+#define BLOCK_SIZE 512
+HeapBlockDevice bd(128*BLOCK_SIZE, BLOCK_SIZE);
+
+
+// Test formatting
+void test_format() {
+    int err = FATFileSystem::format(&bd);
+    TEST_ASSERT_EQUAL(0, err);
+}
+
+
+// Simple test for reading/writing files
+template <ssize_t TEST_SIZE>
+void test_read_write() {
+    FATFileSystem fs("fat");
+
+    int err = fs.mount(&bd);
+    TEST_ASSERT_EQUAL(0, err);
+
+    uint8_t *buffer = (uint8_t *)malloc(TEST_SIZE);
+    TEST_ASSERT(buffer);
+    
+    // Fill with random sequence
+    srand(1);
+    for (int i = 0; i < TEST_SIZE; i++) {
+        buffer[i] = 0xff & rand();
+    }
+
+    // write and read file
+    File file;
+    err = file.open(&fs, "test_read_write.dat", O_WRONLY | O_CREAT);
+    TEST_ASSERT_EQUAL(0, err);
+    ssize_t size = file.write(buffer, TEST_SIZE);
+    TEST_ASSERT_EQUAL(TEST_SIZE, size);
+    err = file.close();
+    TEST_ASSERT_EQUAL(0, err);
+
+    err = file.open(&fs, "test_read_write.dat", O_RDONLY);
+    TEST_ASSERT_EQUAL(0, err);
+    size = file.read(buffer, TEST_SIZE);
+    TEST_ASSERT_EQUAL(TEST_SIZE, size);
+    err = file.close();
+    TEST_ASSERT_EQUAL(0, err);
+
+    // Check that the data was unmodified
+    srand(1);
+    for (int i = 0; i < TEST_SIZE; i++) {
+        TEST_ASSERT_EQUAL(0xff & rand(), buffer[i]);
+    }
+
+    err = fs.unmount();
+    TEST_ASSERT_EQUAL(0, err);
+}
+
+
+// Simple test for iterating dir entries
+void test_read_dir() {
+    FATFileSystem fs("fat");
+
+    int err = fs.mount(&bd);
+    TEST_ASSERT_EQUAL(0, err);
+
+    err = fs.mkdir("test_read_dir", S_IRWXU | S_IRWXG | S_IRWXO);
+    TEST_ASSERT_EQUAL(0, err);
+
+    err = fs.mkdir("test_read_dir/test_dir", S_IRWXU | S_IRWXG | S_IRWXO);
+    TEST_ASSERT_EQUAL(0, err);
+
+    File file;
+    err = file.open(&fs, "test_read_dir/test_file", O_WRONLY | O_CREAT);
+    TEST_ASSERT_EQUAL(0, err);
+    err = file.close();
+    TEST_ASSERT_EQUAL(0, err);
+
+    // Iterate over dir checking for known files
+    Dir dir;
+    err = dir.open(&fs, "test_read_dir");
+    TEST_ASSERT_EQUAL(0, err);
+
+    struct dirent *de;
+    bool test_dir_found = false;
+    bool test_file_found = true;
+
+    while ((de = readdir(&dir))) {
+        printf("d_name: %.32s, d_type: %x\n", de->d_name, de->d_type);
+
+        if (strcmp(de->d_name, "test_dir") == 0) {
+            test_dir_found = true;
+            TEST_ASSERT_EQUAL(DT_DIR, de->d_type);
+        } else if (strcmp(de->d_name, "test_file") == 0) {
+            test_file_found = true;
+            TEST_ASSERT_EQUAL(DT_REG, de->d_type);
+        } else {
+            char *buf = new char[NAME_MAX];
+            snprintf(buf, NAME_MAX, "Unexpected file \"%s\"", de->d_name);
+            TEST_ASSERT_MESSAGE(false, buf);
+        }
+    }
+
+    TEST_ASSERT_MESSAGE(test_dir_found,  "Could not find \"test_dir\"");
+    TEST_ASSERT_MESSAGE(test_file_found, "Could not find \"test_file\"");
+
+    err = dir.close();
+    TEST_ASSERT_EQUAL(0, err);
+
+    err = fs.unmount();
+    TEST_ASSERT_EQUAL(0, err);
+}
+
+
+// Test setup
+utest::v1::status_t test_setup(const size_t number_of_cases) {
+    GREENTEA_SETUP(10, "default_auto");
+    return verbose_test_setup_handler(number_of_cases);
+}
+
+Case cases[] = {
+    Case("Testing formating", test_format),
+    Case("Testing read write < block", test_read_write<BLOCK_SIZE/2>),
+    Case("Testing read write > block", test_read_write<2*BLOCK_SIZE>),
+    Case("Testing dir iteration", test_read_dir),
+};
+
+Specification specification(test_setup, cases);
+
+int main() {
+    return !Harness::run(specification);
+}