From 2900de1bdfde54826c89075f1cb843b6cc488794 Mon Sep 17 00:00:00 2001
From: deepikabhavnani <deepika.bhavnani@arm.com>
Date: Wed, 8 Nov 2017 14:46:58 -0600
Subject: [PATCH] Multithreaded test cases added

---
 TESTS/filesystem/parallel/main.cpp | 184 +++++++++++++++++++++++++++++
 1 file changed, 184 insertions(+)
 create mode 100644 TESTS/filesystem/parallel/main.cpp

diff --git a/TESTS/filesystem/parallel/main.cpp b/TESTS/filesystem/parallel/main.cpp
new file mode 100644
index 0000000000..9c53afd58a
--- /dev/null
+++ b/TESTS/filesystem/parallel/main.cpp
@@ -0,0 +1,184 @@
+#include "mbed.h"
+#include "greentea-client/test_env.h"
+#include "unity.h"
+#include "utest.h"
+#include <stdlib.h>
+#include <errno.h>
+
+using namespace utest::v1;
+
+// test configuration
+#ifndef MBED_TEST_FILESYSTEM
+#define MBED_TEST_FILESYSTEM FATFileSystem
+#endif
+
+#ifndef MBED_TEST_FILESYSTEM_DECL
+#define MBED_TEST_FILESYSTEM_DECL MBED_TEST_FILESYSTEM fs("fs")
+#endif
+
+#ifndef MBED_TEST_BLOCKDEVICE
+#define MBED_TEST_BLOCKDEVICE SDBlockDevice
+#define MBED_TEST_BLOCKDEVICE_DECL SDBlockDevice bd(MBED_CONF_SD_SPI_MOSI, MBED_CONF_SD_SPI_MISO, MBED_CONF_SD_SPI_CLK, MBED_CONF_SD_SPI_CS);
+#endif
+
+#ifndef MBED_TEST_BLOCKDEVICE_DECL
+#define MBED_TEST_BLOCKDEVICE_DECL MBED_TEST_BLOCKDEVICE bd
+#endif
+
+#ifndef MBED_TEST_FILES
+#define MBED_TEST_FILES 4
+#endif
+
+#ifndef MBED_TEST_DIRS
+#define MBED_TEST_DIRS 4
+#endif
+
+#ifndef MBED_TEST_BUFFER
+#define MBED_TEST_BUFFER 512
+#endif
+
+#ifndef MBED_TEST_TIMEOUT
+#define MBED_TEST_TIMEOUT 120
+#endif
+
+#ifndef MBED_THREAD_COUNT
+#define MBED_THREAD_COUNT    MBED_TEST_FILES
+#endif
+
+// declarations
+#define STRINGIZE(x) STRINGIZE2(x)
+#define STRINGIZE2(x) #x
+#define INCLUDE(x) STRINGIZE(x.h)
+
+#include INCLUDE(MBED_TEST_FILESYSTEM)
+#include INCLUDE(MBED_TEST_BLOCKDEVICE)
+
+MBED_TEST_FILESYSTEM_DECL;
+MBED_TEST_BLOCKDEVICE_DECL;
+
+Dir dir[MBED_TEST_DIRS];
+File file[MBED_TEST_FILES];
+DIR *dd[MBED_TEST_DIRS];
+FILE *fd[MBED_TEST_FILES];
+struct dirent ent;
+struct dirent *ed;
+
+volatile bool count_done = 0;
+
+// tests
+
+void test_file_tests() {
+    int res = bd.init();
+    TEST_ASSERT_EQUAL(0, res);
+
+    {
+        res = MBED_TEST_FILESYSTEM::format(&bd);
+        TEST_ASSERT_EQUAL(0, res);
+    }
+
+    res = bd.deinit();
+    TEST_ASSERT_EQUAL(0, res);
+}
+
+void write_file_data (char count) {
+
+    char filename[10];
+    uint8_t wbuffer[MBED_TEST_BUFFER];
+    int res;
+
+    sprintf(filename, "%s%d", "data", count);
+    res = file[count].open(&fs, filename, O_WRONLY | O_CREAT);
+    TEST_ASSERT_EQUAL(0, res);
+    
+    char letter = 'A'+ count;
+    for (uint32_t i = 0; i < MBED_TEST_BUFFER; i++) {
+        wbuffer[i] = letter++;
+        if ('z' == letter) {
+            letter = 'A' + count;
+        }    
+    }
+    
+    for (uint32_t i = 0; i < 5; i++) {
+        res = file[count].write(wbuffer, MBED_TEST_BUFFER);
+        TEST_ASSERT_EQUAL(MBED_TEST_BUFFER, res);
+    }
+
+    res = file[count].close();
+    TEST_ASSERT_EQUAL(0, res);
+}
+
+void read_file_data (char count) {
+    char filename[10];
+    uint8_t rbuffer[MBED_TEST_BUFFER];
+    int res;
+
+    sprintf(filename, "%s%d", "data", count);
+    res = file[count].open(&fs, filename, O_RDONLY);
+    TEST_ASSERT_EQUAL(0, res);
+
+    for (uint32_t i = 0; i < 5; i++) {
+        res = file[count].read(rbuffer, MBED_TEST_BUFFER);
+        TEST_ASSERT_EQUAL(MBED_TEST_BUFFER, res);
+        char letter = 'A' + count;
+        for (uint32_t i = 0; i < MBED_TEST_BUFFER; i++) {
+            res = rbuffer[i];
+            TEST_ASSERT_EQUAL(letter++, res);
+            if ('z' == letter) {
+                letter = 'A' + count;
+            }
+        }
+    }
+
+    res = file[count].close();
+    TEST_ASSERT_EQUAL(0, res);
+}
+
+void test_thread_access_test() {
+    
+    Thread *data[MBED_THREAD_COUNT];    
+    int res = bd.init();
+    TEST_ASSERT_EQUAL(0, res);
+    res = fs.mount(&bd);
+    TEST_ASSERT_EQUAL(0, res);
+    
+    // Write threads in parallel
+    for (char thread_count = 0; thread_count < MBED_THREAD_COUNT; thread_count++) {
+        data[thread_count] = new Thread(osPriorityNormal);
+        data[thread_count]->start(callback((void(*)(void*))write_file_data, (void*)thread_count));
+    }
+    
+    // Wait for write thread to join before creating read thread
+    for (char thread_count = 0; thread_count < MBED_THREAD_COUNT; thread_count++) {
+        data[thread_count]->join();
+        delete data[thread_count];
+        data[thread_count] = new Thread(osPriorityNormal);
+        data[thread_count]->start(callback((void(*)(void*))read_file_data, (void*)thread_count));
+    }
+    
+    // Wait for read threads to join
+    for (char thread_count = 0; thread_count < MBED_THREAD_COUNT; thread_count++) {
+        data[thread_count]->join();
+        delete data[thread_count];
+    }
+    res = fs.unmount();
+    TEST_ASSERT_EQUAL(0, res);
+    res = bd.deinit();
+    TEST_ASSERT_EQUAL(0, res);
+}
+
+// test setup
+utest::v1::status_t test_setup(const size_t number_of_cases) {
+    GREENTEA_SETUP(MBED_TEST_TIMEOUT, "default_auto");
+    return verbose_test_setup_handler(number_of_cases);
+}
+
+Case cases[] = {
+    Case("File tests", test_file_tests),
+    Case("Filesystem access from multiple threads", test_thread_access_test),
+};
+
+Specification specification(test_setup, cases);
+
+int main() {
+    return !Harness::run(specification);
+}