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wizard_tests.c
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wizard_tests.c
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/*
FUSE Development Tool: Wizard tests
Matthew Dooler <[email protected]>
*/
#include "config.h"
//#include "fuse_i.h"
#include "fuse_misc.h"
#include "fuse_opt.h"
#include "fuse_lowlevel.h"
//#include "fuse_common_compat.h"
#ifdef __APPLE__
#include "fuse_darwin_private.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <unistd.h>
#include <string.h>
#include <limits.h>
#include <errno.h>
#include <stdarg.h>
#include <stdbool.h>
#include <glib.h>
const char * wizard_fifo_name = "fuse-wizard.fifo";
FILE * wizard_fifo = NULL;
const char * function_not_defined_err = "Define this function and set it in the fuse_operations struct passed to fuse_main.";
const char * non_existent_file = "/doesnotexistfile.txt";
const char * non_existent_dir = "/doesnotexistdir";
bool test_failed = false;
static GSList * skipped_tests;
/* Open the FIFO for communicating events */
void wizard_fifo_init(void);
void wizard_fifo_init(void)
{
if(wizard_fifo == NULL) {
wizard_fifo = fopen(wizard_fifo_name, "w");
}
}
/* Report an event by writing JSON to the FIFO (called via test_fail or test_pass) */
void report_wizard_event(const char * func_name, int test_num, bool passed, bool optional, const char * message, va_list args_in);
void report_wizard_event(const char * func_name, int test_num, bool passed, bool optional, const char * message, va_list args_in)
{
cJSON * event = cJSON_CreateObject();
cJSON_AddStringToObject(event, "func_name", func_name);
cJSON_AddNumberToObject(event, "test_num", test_num);
cJSON_AddBoolToObject(event, "passed", passed);
cJSON_AddBoolToObject(event, "optional", optional);
if(args_in != NULL) {
// Produce a formatted string from the arguments
va_list args;
va_copy(args, args_in);
size_t formatted_len = strlen(func_name) + strlen(message) + 1024;
char formatted[formatted_len];
vsnprintf(formatted, formatted_len, message, args);
va_end(args);
cJSON_AddStringToObject(event, "message", formatted);
} else {
// No arguments, so just pass the raw message
cJSON_AddStringToObject(event, "message", message);
}
// Package event as a chunk of JSON and write it to the FIFO
char * event_json = cJSON_Print(event);
cJSON_Delete(event);
fwrite(event_json, sizeof(char), strlen(event_json), wizard_fifo);
fflush(wizard_fifo);
free(event_json);
}
/* Special event indicating that the wizard is finished */
void tests_end(void);
void tests_end(void)
{
report_wizard_event("__END", 0, true, true, "", NULL);
}
/* Close the FIFO */
void wizard_fifo_destroy(void);
void wizard_fifo_destroy(void)
{
if(wizard_fifo != NULL) {
fclose(wizard_fifo);
wizard_fifo = NULL;
unlink(wizard_fifo_name);
}
}
void test_pass(const char * func_name, int test_num, bool optional);
void test_pass(const char * func_name, int test_num, bool optional)
{
report_wizard_event(func_name, test_num, true, optional, "", NULL);
}
void test_skip(const char * func_name, int test_num, bool optional);
void test_skip(const char * func_name, int test_num, bool optional)
{
report_wizard_event(func_name, test_num, true, optional, "Skipped", NULL);
}
void test_fail(const char * func_name, int test_num, bool optional, const char * message, ...);
void test_fail(const char * func_name, int test_num, bool optional, const char * message, ...)
{
test_failed = true;
va_list args;
va_start(args, message);
report_wizard_event(func_name, test_num, false, optional, message, args);
va_end(args);
}
/* True if a test should be skipped */
bool is_skipped(const char * func_name, int test_num);
bool is_skipped(const char * func_name, int test_num) {
size_t test_str_len = strlen(func_name) + 64;
char test_str[test_str_len];
snprintf(test_str, test_str_len, "%s:%d", func_name, test_num);
// Search the list of tests that should be skipped
GSList * node = skipped_tests;
while(node != NULL) {
char * this_test_str = (char *) node->data;
if(this_test_str != NULL && strcmp(test_str, this_test_str) == 0) {
printf("[libfuse] Called is_skipped on %s\n", test_str);
return true;
}
node = node->next;
}
return false;
}
/**
* TESTS
*/
void test_operations(const struct fuse_operations * op);
void test_operations(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = false;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op != NULL) {
test_pass(__func__, 0, optional);
} else {
test_fail(__func__, 0, optional, "Initialise the fuse_operations struct with pointers to your functions and pass it to fuse_main. This lets FUSE know which of your functions to use when it gets a filesystem call.");
}
}
void test_init(const struct fuse_operations * op);
void test_init(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = true;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op->init != NULL) {
test_pass(__func__, 0, optional);
//fprintf(stderr, "wizard init invoke\n");
//op->init(NULL);
//fprintf(stderr, "wizard init return\n");
//test_pass(__func__, 1, optional);
} else {
test_fail(__func__, 0, optional, function_not_defined_err);
}
}
void test_getattr(const struct fuse_operations * op);
void test_getattr(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = false;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op->getattr != NULL) {
test_pass(__func__, 0, optional);
if(!is_skipped(__func__, 1)) {
// Get non-existent file, which should not return 0
struct stat * stbuf = malloc(sizeof(*stbuf));
int retval = op->getattr(non_existent_file, stbuf);
if(retval < 0) {
test_pass(__func__, 1, optional);
} else {
test_fail(__func__, 1, optional, "Return a negative number when a file does not exist. It currently returns %d when called with the path of a non-existent file (\"%s\").", retval, non_existent_file);
}
free(stbuf);
} else {
test_skip(__func__, 1, optional);
}
if(!is_skipped(__func__, 2)) {
// Get "/", which should return 0
struct stat * stbuf = malloc(sizeof(*stbuf));
int retval = op->getattr("/", stbuf);
if(retval == 0) {
test_pass(__func__, 2, optional);
} else {
test_fail(__func__, 2, optional, "Return 0 when a file exists. It currently returns %d when called with the root path (\"/\"), but this always exists.", retval);
}
free(stbuf);
} else {
test_skip(__func__, 2, optional);
}
} else {
test_fail(__func__, 0, optional, function_not_defined_err);
}
}
void test_access(const struct fuse_operations * op);
void test_access(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = false;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op->access != NULL) {
test_pass(__func__, 0, optional);
// F_OK tests whether or not the file exists
// Bitwise OR of R_OK, W_OK and X_OK for read/write/execute
// Method returns 0 when all requested permissions are granted, but -1 if any are not allowed
int retval;
if(!is_skipped(__func__, 1)) {
// Access non-existent file, which should return -1
retval = op->access(non_existent_file, F_OK);
if(retval < 0) {
test_pass(__func__, 1, optional);
} else {
test_fail(__func__, 1, optional, "Return a negative number if called with F_OK and the file does not exist. F_OK is used to test for existence of the file. It currently returns %d when called with the path of a non-existent file (\"%s\").", retval, non_existent_file);
}
} else {
test_skip(__func__, 1, optional);
}
if(!is_skipped(__func__, 2)) {
// Access root, which should return 0
retval = op->access("/", F_OK);
if(retval == 0) {
test_pass(__func__, 2, optional);
} else {
test_fail(__func__, 2, optional, "Return 0 if called with F_OK and the file exists. It currently returns %d when called with the root path (\"/\"), but this always exists.", retval);
}
} else {
test_skip(__func__, 2, optional);
}
if(!is_skipped(__func__, 3)) {
// Should have read permission on the filesystem
retval = op->access("/", R_OK);
if(retval == 0) {
test_pass(__func__, 3, optional);
} else {
test_fail(__func__, 3, optional, "Return 0 if called with R_OK, the file exists, and can be read by the process. It currently returns %d when called with the root path (\"/\"), but the filesystem should at least have read permissions.", retval);
}
} else {
test_skip(__func__, 3, optional);
}
} else {
test_fail(__func__, 0, optional, function_not_defined_err);
}
}
void test_rmdir(const struct fuse_operations * op);
void test_rmdir(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = false;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op->rmdir != NULL) {
test_pass(__func__, 0, optional);
if(!is_skipped(__func__, 1)) {
int retval = op->rmdir(non_existent_dir);
if(retval < 0) {
test_pass(__func__, 1, optional);
if(!is_skipped(__func__, 2)) {
// Check that the correct errno is set
if(errno == ENOENT) {
test_pass(__func__, 2, optional);
} else {
test_fail(__func__, 2, optional, "Set errno to ENOENT when trying to delete a directory that does not exist (\"%s\").", non_existent_dir);
}
} else {
test_skip(__func__, 2, optional);
}
} else {
test_fail(__func__, 1, optional, "Return -1 if the directory could not be removed. It currently returns %d when trying to remove the non-existent directory \"%s\".", retval, non_existent_dir);
}
} else {
test_skip(__func__, 1, optional);
}
// Try deleting new_dir incase we need to clean up from a previous run
op->rmdir("/new_dir");
} else {
test_fail(__func__, 0, optional, function_not_defined_err);
}
}
void test_mkdir(const struct fuse_operations * op);
void test_mkdir(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = false;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op->mkdir != NULL) {
test_pass(__func__, 0, optional);
if(!is_skipped(__func__, 1)) {
// Create a new directory
const char * new_dir = "/new_dir";
int retval = op->mkdir(new_dir, 0777);
if(retval == 0) {
test_pass(__func__, 1, optional);
if(!is_skipped(__func__, 2)) {
// Try creating the same directory again (should fail)
retval = op->mkdir(new_dir, 0);
if(retval < 0) {
test_pass(__func__, 2, optional);
// Check that the correct errno is set
if(errno == EEXIST) {
test_pass(__func__, 3, optional);
} else {
test_fail(__func__, 3, optional, "Set errno to EEXIST when trying to create a directory that already exists (\"%s\").", new_dir);
}
} else {
test_fail(__func__, 2, optional, "Return a negative number if there was an error creating the directory. It currently returns %d when trying to create \"%s\", which had already been created. The filesystem is either returning the wrong value, or new directories are not being persisted.", retval, new_dir);
}
if(!is_skipped(__func__, 3)) {
// Remove the directory
retval = op->rmdir(new_dir);
if(retval == 0) {
test_pass("test_rmdir", 3, optional);
} else {
test_fail("test_rmdir", 3, optional, "Return 0 if the directory was successfully removed. It currently returns %d when trying to remove a directory just created: \"%s\".", retval, new_dir);
}
} else {
test_skip(__func__, 3, optional);
}
} else {
test_skip(__func__, 2, optional);
}
} else {
test_fail(__func__, 1, optional, "Return 0 if the directory was successfully created. It currently returns %d when trying to create \"%s\".", retval, new_dir);
}
} else {
test_skip(__func__, 1, optional);
}
} else {
test_fail(__func__, 0, optional, function_not_defined_err);
}
}
void test_unlink(const struct fuse_operations * op);
void test_unlink(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = false;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op->unlink != NULL) {
test_pass(__func__, 0, optional);
if(!is_skipped(__func__, 1)) {
int retval = op->unlink(non_existent_file);
if(retval < 0) {
test_pass(__func__, 1, optional);
if(!is_skipped(__func__, 2)) {
// Check that the correct errno is set
if(errno == ENOENT) {
test_pass(__func__, 2, optional);
} else {
test_fail(__func__, 2, optional, "Set errno to ENOENT when trying to delete a file that does not exist (\"%s\").", non_existent_file);
}
} else {
test_skip(__func__, 2, optional);
}
} else {
test_fail(__func__, 1, optional, "Return -1 if the file could not be removed. It currently returns %d when trying to remove the non-existent file \"%s\".", retval, non_existent_file);
}
} else {
test_skip(__func__, 1, optional);
}
// Try deleting new_file incase we need to clean up from a previous run
op->unlink("/new_file.txt");
} else {
test_fail(__func__, 0, optional, function_not_defined_err);
}
}
void test_create(const struct fuse_operations * op);
void test_create(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = false;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op->create != NULL) {
test_pass(__func__, 0, optional);
if(!is_skipped(__func__, 1)) {
mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
const char * new_file = "/new_file.txt";
struct fuse_file_info * fi = malloc(sizeof(struct fuse_file_info));
fi->flags = O_RDWR | O_CREAT;
int retval = op->create(new_file, mode, fi);
if(retval >= 0) {
test_pass(__func__, 1, optional);
if(!is_skipped("test_unlink", 3)) {
// File created, so try to delete it
retval = op->unlink(new_file);
if(retval == 0) {
test_pass("test_unlink", 3, optional);
} else {
test_fail("test_unlink", 3, optional, "Return 0 if the file was successfully removed. It currently returns %d when trying to remove a file just created: \"%s\".", retval, new_file);
}
} else {
test_skip("test_unlink", 3, optional);
}
} else {
test_fail(__func__, 1, optional, "Return a non-negative number if the file was created successfully. It currently returns %d when trying to create the file: \"%s\".", retval, new_file);
}
free(fi);
} else {
test_skip(__func__, 1, optional);
}
} else {
test_fail(__func__, 0, optional, function_not_defined_err);
}
}
void test_fgetattr(const struct fuse_operations * op);
void test_fgetattr(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = false;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op->fgetattr != NULL) {
test_pass(__func__, 0, optional);
// Call create and use the file handle to call fgetattr
if(!is_skipped(__func__, 1)) {
mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
const char * new_file = "/new_file.txt";
struct fuse_file_info * fi = malloc(sizeof(struct fuse_file_info));
fi->flags = O_RDWR | O_CREAT;
op->create(new_file, mode, fi);
// Call fgetattr on created file, which gets the attributes of an open file using fi->fh
struct stat * stbuf = malloc(sizeof(*stbuf));
int retval = op->fgetattr(new_file, stbuf, fi);
if(retval == 0) {
test_pass(__func__, 1, optional);
} else {
test_fail(__func__, 1, optional, "Return 0 when a file exists. It currently returns %d when called with the path and filehandle of a file just created and opened (\"%s\").", retval, new_file);
}
free(stbuf);
// Cleanup
op->unlink(new_file);
free(fi);
} else {
test_skip(__func__, 1, optional);
}
} else {
test_fail(__func__, 0, optional, function_not_defined_err);
}
}
void test_flush(const struct fuse_operations * op);
void test_flush(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = false;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op->flush != NULL) {
test_pass(__func__, 0, optional);
// Nothing else to test as this modifies complex internal state
} else {
test_fail(__func__, 0, optional, function_not_defined_err);
}
}
void test_release(const struct fuse_operations * op);
void test_release(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = true;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op->release != NULL) {
test_pass(__func__, 0, optional);
// Nothing else to test as return value is ignored
} else {
test_fail(__func__, 0, optional, function_not_defined_err);
}
}
void test_opendir(const struct fuse_operations * op);
void test_opendir(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = true;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op->opendir != NULL) {
test_pass(__func__, 0, optional);
if(!is_skipped(__func__, 1)) {
struct fuse_file_info * fi = malloc(sizeof(struct fuse_file_info));
int retval = op->opendir("/", fi);
if(retval == 0) {
test_pass(__func__, 1, optional);
} else {
test_fail(__func__, 1, optional, "Return 0 if the directory exists and the process has permission to open it. It currently returns %d when called with the root path (\"/\"), but the filesystem should at least have read permissions.", retval);
}
free(fi);
} else {
test_skip(__func__, 1, optional);
}
if(!is_skipped(__func__, 2)) {
struct fuse_file_info * fi = malloc(sizeof(struct fuse_file_info));
int retval = op->opendir(non_existent_dir, fi);
if(retval == 0) {
test_fail(__func__, 2, optional, "Return a negative number if a directory cannot be opened. It currently returns %d when called with a non-existent path (\"%s\").", retval, non_existent_dir);
} else {
test_pass(__func__, 2, optional);
}
free(fi);
} else {
test_skip(__func__, 2, optional);
}
// don't test that fi->fh is set as this is optional
} else {
test_fail(__func__, 0, optional, function_not_defined_err);
}
}
// Expecting 4 calls to this method - '.', '..', 'new_file_1.txt' and 'new_file_2.txt'
bool filled_file_cur = FALSE;
bool filled_file_parent = FALSE;
const char * new_file_1 = "/new_file_1.txt";
bool filled_new_file_1 = FALSE;
const char * new_file_2 = "/new_file_2.txt";
bool filled_new_file_2 = FALSE;
bool executing_readdir = FALSE;
bool bad_increment = FALSE;
int files_filled = 0;
int filler(void * buf, const char * name, const struct stat * stbuf, off_t off);
int filler(void * buf, const char * name, const struct stat * stbuf, off_t off) {
/*
* buf: the buffer passed to the readdir() operation
* name: the file name of the directory entry
* stat: file attributes, can be NULL
* off: offset of the next entry or zero
*/
(void) buf;
(void) stbuf;
if(executing_readdir) {
printf("Directory contains file '%s' and offset is %td\n", name, off);
// Make sure offsets count upwards with each filler call, starting from 1
/*if(!is_skipped("test_readdir", 2)) {
if(off-1 != files_filled) {
test_fail("test_readdir", 2, FALSE, "Call filler with incrementing offsets, starting from 1. It currently returned %d instead of %d, on iteration %d.", off, files_filled+1, files_filled);
bad_increment = TRUE;
}
}*/
// Check for each of the 4 files we expect
if(strcmp(name, ".") == 0) {
filled_file_cur = TRUE;
} else if(strcmp(name, "..") == 0) {
filled_file_parent = TRUE;
} else if(strcmp(name, "new_file_1.txt") == 0) {
filled_new_file_1 = TRUE;
} else if(strcmp(name, "new_file_2.txt") == 0) {
filled_new_file_2 = TRUE;
}
files_filled++;
} else {
fprintf(stderr, "filler function was called outside of readdir\n");
}
// 0 tells readdir to call filler with next entry
return 0;
}
void test_readdir(const struct fuse_operations * op);
void test_readdir(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = false;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op->readdir != NULL) {
test_pass(__func__, 0, optional);
// Open directory (which we know works) and try reading it
if(!is_skipped(__func__, 1)) {
// Create some files which we expect to be listed
mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
struct fuse_file_info * fi = malloc(sizeof(struct fuse_file_info));
fi->flags = O_RDWR | O_CREAT;
int retval = op->create(new_file_1, mode, fi);
free(fi);
fi = malloc(sizeof(struct fuse_file_info));
fi->flags = O_RDWR | O_CREAT;
retval = op->create(new_file_2, mode, fi);
free(fi);
// Open directory, which may optionally set fi->fh
fi = malloc(sizeof(struct fuse_file_info));
retval = op->opendir("/", fi);
// Try reading the directory, which should callback our function called filler
executing_readdir = TRUE;
retval = op->readdir("/", NULL, filler, 0, fi);
executing_readdir = FALSE;
if(retval == 0) {
test_pass(__func__, 1, optional);
} else {
test_fail(__func__, 1, optional, "Return 0 if the directory exists and the process has permission to open it. It currently returns %d when called with the root path (\"/\"), but the filesystem should at least have read permissions.", retval);
}
// Test 2 is failed inside filler callback. The callback never knows when it's passed, so we do the check here.
if(is_skipped(__func__, 2)) {
test_skip(__func__, 2, optional);
} else if(!bad_increment) {
test_pass(__func__, 2, optional);
}
// Check that each of the 4 expected files exist
if(!is_skipped(__func__, 3)) {
if(filled_file_cur) {
test_pass(__func__, 3, optional);
} else {
test_fail(__func__, 3, optional, "Invoke filler callback with file for the current directory (\".\").");
}
} else {
test_skip(__func__, 3, optional);
}
if(!is_skipped(__func__, 4)) {
if(filled_file_parent) {
test_pass(__func__, 4, optional);
} else {
test_fail(__func__, 4, optional, "Invoke filler callback with file for the parent directory (\"..\").");
}
} else {
test_skip(__func__, 4, optional);
}
if(!is_skipped(__func__, 5)) {
if(filled_new_file_1) {
test_pass(__func__, 5, optional);
} else {
test_fail(__func__, 5, optional, "Invoke filler callback with one of the files just created (\"%s\").", new_file_1);
}
} else {
test_skip(__func__, 5, optional);
}
if(!is_skipped(__func__, 6)) {
if(filled_new_file_2) {
test_pass(__func__, 6, optional);
} else {
test_fail(__func__, 6, optional, "Invoke filler callback with one of the files just created (\"%s\").", new_file_2);
}
} else {
test_skip(__func__, 6, optional);
}
if(!is_skipped(__func__, 7)) {
if(files_filled == 4) {
test_pass(__func__, 7, optional);
} else {
test_fail(__func__, 7, optional, "Filler callback needs to be invoked exactly 4 times, for each of the 4 files that should exist in the root directory (\".\", \"..\", \"%s\", \"%s\"). It was invoked %d times.", new_file_1, new_file_2, files_filled);
}
} else {
test_skip(__func__, 7, optional);
}
op->unlink(new_file_1);
op->unlink(new_file_2);
free(fi);
}
} else {
test_fail(__func__, 0, optional, function_not_defined_err);
}
}
void test_releasedir(const struct fuse_operations * op);
void test_releasedir(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = false;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op->releasedir != NULL) {
test_pass(__func__, 0, optional);
// nothing else to test, as this modifies internal state of the developers filesystem
} else {
test_fail(__func__, 0, optional, function_not_defined_err);
}
}
void test_open(const struct fuse_operations * op);
void test_open(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = true;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op->open != NULL) {
test_pass(__func__, 0, optional);
// We know create works so create a file and test that we can open it
if(!is_skipped(__func__, 1)) {
mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
const char * new_file = "/new_file.txt";
struct fuse_file_info * fi = malloc(sizeof(struct fuse_file_info));
fi->flags = O_RDWR | O_CREAT;
int retval = op->create(new_file, mode, fi);
if(retval >= 0) {
test_pass("test_create", 2, optional);
// Open the file
fi->flags = O_RDWR;
retval = op->open(new_file, fi);
if(retval == 0) {
test_pass(__func__, 1, optional);
} else {
test_fail(__func__, 1, optional, "Return 0 if the file exists and the user has permission to open it. It currently returns %d when trying to open a file just created: \"%s\".", retval, new_file);
}
// Delete the file
retval = op->unlink(new_file);
if(retval == 0) {
test_pass("test_unlink", 4, optional);
} else {
test_fail("test_unlink", 4, optional, "Return 0 if the file was successfully removed. It currently returns %d when trying to remove a file just created: \"%s\".", retval, new_file);
}
} else {
test_fail("test_create", 2, optional, "Return a non-negative number if the file was created successfully. It currently returns %d when trying to create the file: \"%s\".", retval, new_file);
}
} else {
test_skip(__func__, 1, optional);
}
// Shouldn't be able to open a nonexistent file
if(!is_skipped(__func__, 2)) {
struct fuse_file_info * fi = malloc(sizeof(struct fuse_file_info));
fi->flags = O_RDWR;
int retval = op->open(non_existent_file, fi);
if(retval == 0) {
test_fail(__func__, 2, optional, "Return a negative number if a file cannot be opened. It currently returns %d when called with a non-existent path (\"%s\").", retval, non_existent_file);
} else {
test_pass(__func__, 2, optional);
}
free(fi);
} else {
test_skip(__func__, 2, optional);
}
} else {
test_fail(__func__, 0, optional, function_not_defined_err);
}
}
void test_read_and_write(const struct fuse_operations * op);
void test_read_and_write(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = false;
if(is_skipped("test_write", 0)) return test_skip("test_write", 0, optional);
if(op->write != NULL) {
test_pass("test_write", 0, optional);
// Create a test file
if(!is_skipped("test_create", 3)) {
mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
const char * new_file = "/new_file.txt";
struct fuse_file_info * fi = malloc(sizeof(struct fuse_file_info));
fi->flags = O_RDWR | O_CREAT;
int retval = op->create(new_file, mode, fi);
if(retval >= 0) {
test_pass("test_create", 3, optional);
// Open the file
//struct fuse_file_info * fi = malloc(sizeof(struct fuse_file_info));
//fi->flags = O_RDWR;
retval = op->open(new_file, fi);
if(retval == 0) {
test_pass("test_open", 2, optional);
// Write to the file
if(!is_skipped("test_write", 2)) {
const char * data = "this is a test string";
size_t data_len = strlen(data);
retval = op->write(new_file, data, data_len, 0, fi);
if(retval == data_len) {
test_pass("test_write", 2, optional);
} else {
test_fail("test_write", 2, optional, "Write should return the number of bytes written except on error, so %d (not %d) when writing \"%s\" to \"%s\").", data_len, retval, data, new_file);
}
// Try reading the written data
if(!is_skipped("test_read", 0)) {
if(op->read != NULL) {
test_pass("test_read", 0, optional);
if(!is_skipped("test_read", 1)) {
char data_read[1024];
retval = op->read(new_file, data_read, sizeof(data_read), 0, fi);
if(retval == data_len) {
test_pass("test_read", 1, optional);
if(!is_skipped("test_read", 2)) {
if(strcmp(data, data_read) == 0) {
test_pass("test_read", 2, optional);
} else {
test_fail("test_read", 2, optional, "Read should have filled the buffer with \"%s\" as this was the data written to \"%s\").", data, new_file);
}
} else {
test_skip("test_read", 2, optional);
}
} else {
test_fail("test_read", 1, optional, "Read should return the number of bytes read except on error, so %d (not %d) when reading \"%s\" from \"%s\").", data_len, retval, data, new_file);
}
} else {
test_skip("test_read", 1, optional);
}
} else {
test_fail("test_read", 0, optional, function_not_defined_err);
}
} else {
test_skip("test_read", 0, optional);
}
} else {
test_skip("test_write", 2, optional);
}
} else {
test_fail("test_open", 2, optional, "Return 0 if the file exists and the user has permission to open it. It currently returns %d when trying to open a file just created: \"%s\".", retval, new_file);
}
// Delete the file
retval = op->unlink(new_file);
if(retval == 0) {
test_pass("test_unlink", 5, optional);
} else {
test_fail("test_unlink", 5, optional, "Return 0 if the file was successfully removed. It currently returns %d when trying to remove a file just created: \"%s\".", retval, new_file);
}
} else {
test_fail("test_create", 3, optional, "Return a non-negative number if the file was created successfully. It currently returns %d when trying to create the file: \"%s\".", retval, new_file);
}
} else {
test_skip("test_write", 1, optional);
}
} else {
test_fail("test_write", 0, optional, function_not_defined_err);
}
}
void test_symlink(const struct fuse_operations * op);
void test_symlink(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = false;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op->symlink != NULL) {
test_pass(__func__, 0, optional);
mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
const char * new_file = "/new_file.txt";
struct fuse_file_info * fi = malloc(sizeof(struct fuse_file_info));
fi->flags = O_RDWR | O_CREAT;
int retval = op->create(new_file, mode, fi);
if(!is_skipped(__func__, 1)) {
const char * new_link = "/new_link.txt";
retval = op->symlink(new_file, new_link);
if(retval == 0) {
test_pass(__func__, 1, optional);
} else {
test_fail(__func__, 1, optional, "Symlink should return 0 when a symbolic link is created successfully (actual return value was %d)", retval);
}
op->unlink(new_link);
} else {
test_skip(__func__, 1, optional);
}
op->unlink(new_file);
free(fi);
} else {
test_fail(__func__, 0, optional, function_not_defined_err);
}
}
void test_link(const struct fuse_operations * op);
void test_link(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = false;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op->link != NULL) {
test_pass(__func__, 0, optional);
mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
const char * new_file = "/new_file.txt";
struct fuse_file_info * fi = malloc(sizeof(struct fuse_file_info));
fi->flags = O_RDWR | O_CREAT;
int retval = op->create(new_file, mode, fi);
if(!is_skipped(__func__, 1)) {
const char * new_link = "/new_link.txt";
retval = op->link(new_file, new_link);
if(retval == 0) {
test_pass(__func__, 1, optional);
} else {
test_fail(__func__, 1, optional, "Link should return 0 when a hard link is created successfully (actual return value was %d)", retval);
}
op->unlink(new_link);
} else {
test_skip(__func__, 1, optional);
}
op->unlink(new_file);
free(fi);
} else {
test_fail(__func__, 0, optional, function_not_defined_err);
}
}
void test_readlink(const struct fuse_operations * op);
void test_readlink(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = false;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op->readlink != NULL) {
test_pass(__func__, 0, optional);
if(!is_skipped(__func__, 1)) {
char buf[1024];
int retval = readlink(non_existent_file, buf, sizeof(buf));
if(retval == -1) {
test_pass(__func__, 1, optional);
} else {
test_fail(__func__, 1, optional, "Return a negative number if a link cannot be opened. It currently returns %d when called with a non-existent path (\"%s\").", retval, non_existent_file);
}
} else {
test_skip(__func__, 1, optional);
}
} else {
test_fail(__func__, 0, optional, function_not_defined_err);
}
}
void test_rename(const struct fuse_operations * op);
void test_rename(const struct fuse_operations * op) {
if(test_failed) return;
bool optional = false;
if(is_skipped(__func__, 0)) return test_skip(__func__, 0, optional);
if(op->rename != NULL) {
test_pass(__func__, 0, optional);
mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
const char * new_file = "/new_file.txt";
const char * moved_file = "/moved_file.txt";
struct fuse_file_info * fi = malloc(sizeof(struct fuse_file_info));
fi->flags = O_RDWR | O_CREAT;
int retval = op->create(new_file, mode, fi);
if(!is_skipped(__func__, 1)) {
const char * new_link = "/new_link.txt";
retval = op->rename(new_file, moved_file);
if(retval == 0) {
test_pass(__func__, 1, optional);
} else {
test_fail(__func__, 1, optional, "Rename should return 0 when the file is renamed successfully (actual return value was %d)", retval);