mirror of
https://github.com/espressif/esp-idf.git
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284 lines
8.8 KiB
C
284 lines
8.8 KiB
C
// Copyright 2015-2017 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/fcntl.h>
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#include <sys/dirent.h>
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#include "esp_vfs.h"
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#include "unity.h"
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#include "esp_log.h"
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/* Dummy VFS implementation to check if VFS is called or not with expected path
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*/
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typedef struct {
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const char* match_path;
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bool called;
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} dummy_vfs_t;
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static int dummy_open(void* ctx, const char * path, int flags, int mode)
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{
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dummy_vfs_t* dummy = (dummy_vfs_t*) ctx;
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dummy->called = true;
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if (strcmp(dummy->match_path, path) == 0) {
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return 1;
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}
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errno = ENOENT;
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return -1;
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}
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static int dummy_close(void* ctx, int fd)
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{
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dummy_vfs_t* dummy = (dummy_vfs_t*) ctx;
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dummy->called = true;
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if (fd == 1) {
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return 0;
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}
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errno = EBADF;
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return -1;
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}
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static DIR* dummy_opendir(void* ctx, const char* path)
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{
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dummy_vfs_t* dummy = (dummy_vfs_t*) ctx;
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dummy->called = true;
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if (strcmp(dummy->match_path, path) == 0) {
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DIR* result = calloc(1, sizeof(DIR));
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TEST_ASSERT_NOT_NULL(result);
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return result;
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}
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errno = ENOENT;
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return NULL;
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}
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static int dummy_closedir(void* ctx, DIR* pdir)
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{
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dummy_vfs_t* dummy = (dummy_vfs_t*) ctx;
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dummy->called = true;
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free(pdir);
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return 0;
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}
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/* Initializer for this dummy VFS implementation
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*/
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#define DUMMY_VFS() { \
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.flags = ESP_VFS_FLAG_CONTEXT_PTR, \
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.open_p = dummy_open, \
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.close_p = dummy_close, \
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.opendir_p = dummy_opendir, \
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.closedir_p = dummy_closedir \
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}
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/* Helper functions to test VFS behavior
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*/
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static void test_open(dummy_vfs_t* instance, const char* path,
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bool should_be_called, bool should_be_opened, int line)
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{
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const int flags = O_CREAT | O_TRUNC | O_RDWR;
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instance->called = false;
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int fd = esp_vfs_open(__getreent(), path, flags, 0);
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UNITY_TEST_ASSERT_EQUAL_INT(should_be_called, instance->called, line,
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"should_be_called check failed");
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if (should_be_called) {
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if (should_be_opened) {
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UNITY_TEST_ASSERT(fd >= 0, line, "should be opened");
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} else {
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UNITY_TEST_ASSERT(fd < 0, line, "should not be opened");
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}
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}
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esp_vfs_close(__getreent(), fd);
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}
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static void test_opendir(dummy_vfs_t* instance, const char* path,
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bool should_be_called, bool should_be_opened, int line)
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{
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instance->called = false;
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DIR* dir = opendir(path);
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UNITY_TEST_ASSERT_EQUAL_INT(should_be_called, instance->called, line,
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"should_be_called check failed");
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if (should_be_called) {
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if (should_be_opened) {
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UNITY_TEST_ASSERT(dir != NULL, line, "should be opened");
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} else {
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UNITY_TEST_ASSERT(dir == 0, line, "should not be opened");
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}
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}
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if (dir) {
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closedir(dir);
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}
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}
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/* Helper macros which forward line number to assertion macros inside test_open
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* and test_opendir
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*/
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#define test_opened(instance, path) test_open(instance, path, true, true, __LINE__)
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#define test_not_opened(instance, path) test_open(instance, path, true, false, __LINE__)
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#define test_not_called(instance, path) test_open(instance, path, false, false, __LINE__)
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#define test_dir_opened(instance, path) test_opendir(instance, path, true, true, __LINE__)
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#define test_dir_not_opened(instance, path) test_opendir(instance, path, true, false, __LINE__)
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#define test_dir_not_called(instance, path) test_opendir(instance, path, false, false, __LINE__)
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TEST_CASE("vfs parses paths correctly", "[vfs]")
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{
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dummy_vfs_t inst_foo = {
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.match_path = "",
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.called = false
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};
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esp_vfs_t desc_foo = DUMMY_VFS();
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TEST_ESP_OK( esp_vfs_register("/foo", &desc_foo, &inst_foo) );
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dummy_vfs_t inst_foo1 = {
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.match_path = "",
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.called = false
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};
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esp_vfs_t desc_foo1 = DUMMY_VFS();
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TEST_ESP_OK( esp_vfs_register("/foo1", &desc_foo1, &inst_foo1) );
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inst_foo.match_path = "/file";
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test_opened(&inst_foo, "/foo/file");
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test_not_opened(&inst_foo, "/foo/file1");
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test_not_called(&inst_foo, "/foo1/file");
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test_not_called(&inst_foo, "/foo1");
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test_not_opened(&inst_foo, "/foo");
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inst_foo.match_path = "/junk";
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test_dir_opened(&inst_foo, "/foo/junk");
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inst_foo.match_path = "/";
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test_dir_opened(&inst_foo, "/foo/");
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test_dir_opened(&inst_foo, "/foo");
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test_dir_not_called(&inst_foo1, "/foo");
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test_dir_not_opened(&inst_foo, "/foo/1");
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test_dir_not_called(&inst_foo, "/foo1");
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inst_foo1.match_path = "/file1";
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test_not_called(&inst_foo1, "/foo/file1");
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test_opened(&inst_foo1, "/foo1/file1");
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test_not_opened(&inst_foo1, "/foo1/file");
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// Test nested VFS entries
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dummy_vfs_t inst_foobar = {
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.match_path = "",
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.called = false
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};
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esp_vfs_t desc_foobar = DUMMY_VFS();
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TEST_ESP_OK( esp_vfs_register("/foo/bar", &desc_foobar, &inst_foobar) );
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dummy_vfs_t inst_toplevel = {
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.match_path = "",
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.called = false
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};
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esp_vfs_t desc_toplevel = DUMMY_VFS();
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TEST_ESP_OK( esp_vfs_register("", &desc_toplevel, &inst_toplevel) );
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inst_foo.match_path = "/bar/file";
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inst_foobar.match_path = "/file";
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test_not_called(&inst_foo, "/foo/bar/file");
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test_opened(&inst_foobar, "/foo/bar/file");
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test_dir_not_called(&inst_foo, "/foo/bar/file");
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test_dir_opened(&inst_foobar, "/foo/bar/file");
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inst_toplevel.match_path = "/tmp/foo";
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test_opened(&inst_toplevel, "/tmp/foo");
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inst_toplevel.match_path = "foo";
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test_opened(&inst_toplevel, "foo");
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TEST_ESP_OK( esp_vfs_unregister("/foo") );
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TEST_ESP_OK( esp_vfs_unregister("/foo1") );
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TEST_ESP_OK( esp_vfs_unregister("/foo/bar") );
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TEST_ESP_OK( esp_vfs_unregister("") );
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}
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TEST_CASE("vfs unregisters correct nested mount point", "[vfs]")
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{
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dummy_vfs_t inst_foobar = {
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.match_path = "/file",
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.called = false
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};
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esp_vfs_t desc_foobar = DUMMY_VFS();
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TEST_ESP_OK( esp_vfs_register("/foo/bar", &desc_foobar, &inst_foobar) );
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dummy_vfs_t inst_foo = {
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.match_path = "/bar/file",
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.called = false
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};
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esp_vfs_t desc_foo = DUMMY_VFS();
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TEST_ESP_OK( esp_vfs_register("/foo", &desc_foo, &inst_foo) );
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/* basic operation */
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test_opened(&inst_foobar, "/foo/bar/file");
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test_not_called(&inst_foo, "/foo/bar/file");
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/* this should not match anything */
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TEST_ESP_ERR(ESP_ERR_INVALID_STATE, esp_vfs_unregister("/foo/b"));
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/* unregister "/foo" and check that we haven't unregistered "/foo/bar" */
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TEST_ESP_OK( esp_vfs_unregister("/foo") );
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test_not_called(&inst_foo, "/foo/bar/file");
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test_opened(&inst_foobar, "/foo/bar/file");
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/* repeat the above, with the reverse order of registration */
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TEST_ESP_OK( esp_vfs_unregister("/foo/bar") );
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TEST_ESP_OK( esp_vfs_register("/foo", &desc_foo, &inst_foo) );
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TEST_ESP_OK( esp_vfs_register("/foo/bar", &desc_foobar, &inst_foobar) );
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test_opened(&inst_foobar, "/foo/bar/file");
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test_not_called(&inst_foo, "/foo/bar/file");
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TEST_ESP_OK( esp_vfs_unregister("/foo") );
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test_not_called(&inst_foo, "/foo/bar/file");
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test_opened(&inst_foobar, "/foo/bar/file");
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TEST_ESP_OK( esp_vfs_unregister("/foo/bar") );
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}
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void test_vfs_register(const char* prefix, bool expect_success, int line)
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{
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dummy_vfs_t inst;
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esp_vfs_t desc = DUMMY_VFS();
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esp_err_t err = esp_vfs_register(prefix, &desc, &inst);
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if (expect_success) {
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UNITY_TEST_ASSERT_EQUAL_INT(ESP_OK, err, line, "esp_vfs_register should succeed");
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} else {
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UNITY_TEST_ASSERT_EQUAL_INT(ESP_ERR_INVALID_ARG,
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err, line, "esp_vfs_register should fail");
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}
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if (err == ESP_OK) {
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TEST_ESP_OK( esp_vfs_unregister(prefix) );
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}
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}
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#define test_register_ok(prefix) test_vfs_register(prefix, true, __LINE__)
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#define test_register_fail(prefix) test_vfs_register(prefix, false, __LINE__)
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TEST_CASE("vfs checks mount point path", "[vfs]")
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{
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test_register_ok("");
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test_register_fail("/");
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test_register_fail("a");
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test_register_fail("aa");
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test_register_fail("aaa");
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test_register_ok("/a");
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test_register_ok("/aa");
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test_register_ok("/aaa/bbb");
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test_register_fail("/aaa/");
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test_register_fail("/aaa/bbb/");
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test_register_ok("/23456789012345");
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test_register_fail("/234567890123456");
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}
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