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error_test.c
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/*
* Copyright 2010-2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file 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 <aws/common/thread.h>
#include <aws/testing/aws_test_harness.h>
static struct aws_error_info errors[] = {
AWS_DEFINE_ERROR_INFO(1024, "test error 1", "test lib"),
AWS_DEFINE_ERROR_INFO(1025, "test error 2", "test lib"),
};
static struct aws_error_info_list errors_list = {
.error_list = errors,
.count = sizeof(errors) / sizeof(struct aws_error_info),
};
static void setup_errors_test_fn(struct aws_allocator *config, void *ctx) {
aws_reset_error();
aws_set_global_error_handler_fn(NULL, NULL);
aws_set_thread_local_error_handler_fn(NULL, NULL);
aws_register_error_info(&errors_list);
}
static void teardown_errors_test_fn(struct aws_allocator *config, void *ctx) {
aws_reset_error();
aws_set_global_error_handler_fn(NULL, NULL);
aws_set_thread_local_error_handler_fn(NULL, NULL);
}
static int raise_errors_test_fn(struct aws_allocator *config, void *ctx) {
int error = aws_last_error();
ASSERT_NULL(error, "error should be initialized to NULL");
ASSERT_INT_EQUALS(0, aws_last_error(), "error code should be initialized to 0");
struct aws_error_info test_error_1 = errors[0];
struct aws_error_info test_error_2 = errors[1];
ASSERT_INT_EQUALS(-1, aws_raise_error(test_error_1.error_code), "Raise error should return failure code.");
error = aws_last_error();
ASSERT_INT_EQUALS(test_error_1.error_code, error, "Expected error code %d, but was %d",
test_error_1.error_code, error);
ASSERT_STR_EQUALS(test_error_1.error_str, aws_error_str(error), "Expected error string %s, but got %s",
test_error_1.error_str, aws_error_str(error));
ASSERT_STR_EQUALS(test_error_1.lib_name, aws_error_lib_name(error), "Expected error libname %s, but got %s",
test_error_1.lib_name, aws_error_lib_name(error));
ASSERT_INT_EQUALS(-1, aws_raise_error(test_error_2.error_code), "Raise error should return failure code.");
error = aws_last_error();
ASSERT_INT_EQUALS(test_error_2.error_code, error, "Expected error code %d, but was %d",
test_error_2.error_code, error);
error = aws_last_error();
ASSERT_NOT_NULL(error, "last error should not have been null");
ASSERT_STR_EQUALS(test_error_2.error_str, aws_error_str(error), "Expected error string %s, but got %s",
test_error_2.error_str, aws_error_str(error));
ASSERT_STR_EQUALS(test_error_2.lib_name, aws_error_lib_name(error), "Expected error libname %s, but got %s",
test_error_2.lib_name, aws_error_lib_name(error));
aws_reset_error();
error = aws_last_error();
ASSERT_NULL(error, "error should be reset to NULL");
ASSERT_INT_EQUALS(0, aws_last_error(), "error code should be reset to 0");
return 0;
}
static int reset_errors_test_fn(struct aws_allocator *config, void *ctx) {
struct aws_error_info test_error_1 = errors[0];
struct aws_error_info test_error_2 = errors[1];
aws_raise_error(test_error_2.error_code);
aws_restore_error(test_error_1.error_code);
int error = aws_last_error();
ASSERT_NOT_NULL(error, "last error should not have been null");
ASSERT_INT_EQUALS(test_error_1.error_code, error, "Expected error code %d, but was %d",
test_error_1.error_code, error);
ASSERT_STR_EQUALS(test_error_1.error_str, aws_error_str(error), "Expected error string %s, but got %s",
test_error_1.error_str, aws_error_str(error));
ASSERT_STR_EQUALS(test_error_1.lib_name, aws_error_lib_name(error), "Expected error libname %s, but got %s",
test_error_1.lib_name, aws_error_lib_name(error));
return 0;
}
struct error_test_cb_data {
int global_cb_called;
int tl_cb_called;
int last_seen;
};
static void error_test_global_cb(int err, void *ctx) {
struct error_test_cb_data *cb_data = (struct error_test_cb_data *)ctx;
cb_data->global_cb_called = 1;
cb_data->last_seen = err;
}
static void error_test_thread_local_cb(int err, void *ctx) {
struct error_test_cb_data *cb_data = (struct error_test_cb_data *)ctx;
cb_data->tl_cb_called = 1;
cb_data->last_seen = err;
}
static int error_callback_test_fn(struct aws_allocator *config, void *ctx) {
struct error_test_cb_data cb_data = {
.last_seen = 0,
.global_cb_called = 0,
.tl_cb_called = 0
};
struct aws_error_info test_error_1 = errors[0];
struct aws_error_info test_error_2 = errors[1];
aws_error_handler old_fn = aws_set_global_error_handler_fn(error_test_global_cb, &cb_data);
ASSERT_NULL(old_fn, "setting the global error callback the first time should return null");
aws_raise_error(test_error_1.error_code);
ASSERT_NOT_NULL(cb_data.last_seen, "last error should not have been null");
ASSERT_TRUE(cb_data.global_cb_called, "Global Callback should have been invoked");
ASSERT_FALSE(cb_data.tl_cb_called, "Thread Local Callback should not have been invoked");
ASSERT_INT_EQUALS(test_error_1.error_code, cb_data.last_seen, "Expected error code %d, but was %d",
test_error_1.error_code, cb_data.last_seen);
ASSERT_STR_EQUALS(test_error_1.error_str, aws_error_str(cb_data.last_seen), "Expected error string %s, but got %s",
test_error_1.error_str, aws_error_str(cb_data.last_seen));
ASSERT_STR_EQUALS(test_error_1.lib_name, aws_error_lib_name(cb_data.last_seen), "Expected error libname %s, but got %s",
test_error_1.lib_name, aws_error_lib_name(cb_data.last_seen));
cb_data.last_seen = 0;
cb_data.global_cb_called = 0;
old_fn = aws_set_thread_local_error_handler_fn(error_test_thread_local_cb, &cb_data);
ASSERT_NULL(old_fn, "setting the global error callback the first time should return null");
aws_raise_error(test_error_2.error_code);
ASSERT_INT_EQUALS(test_error_2.error_code, aws_last_error(), "Expected error code %d, but was %d",
test_error_2.error_code, aws_last_error());
ASSERT_NOT_NULL(cb_data.last_seen, "last error should not have been null");
ASSERT_FALSE(cb_data.global_cb_called, "Global Callback should not have been invoked");
ASSERT_TRUE(cb_data.tl_cb_called, "Thread local Callback should have been invoked");
ASSERT_INT_EQUALS(test_error_2.error_code, cb_data.last_seen, "Expected error code %d, but was %d",
test_error_2.error_code, cb_data.last_seen);
ASSERT_STR_EQUALS(test_error_2.error_str, aws_error_str(cb_data.last_seen), "Expected error string %s, but got %s",
test_error_2.error_str, aws_error_str(cb_data.last_seen));
ASSERT_STR_EQUALS(test_error_2.lib_name, aws_error_lib_name(cb_data.last_seen), "Expected error libname %s, but got %s",
test_error_2.lib_name, aws_error_lib_name(cb_data.last_seen));
old_fn = aws_set_thread_local_error_handler_fn(NULL, NULL);
ASSERT_PTR_EQUALS(error_test_thread_local_cb, old_fn, "Setting a new thread local error callback should have returned the most recent value");
old_fn = aws_set_global_error_handler_fn(NULL, NULL);
ASSERT_PTR_EQUALS(error_test_global_cb, old_fn, "Setting a new global error callback should have returned the most recent value");
return 0;
}
static int unknown_error_code_in_slot_test_fn(struct aws_allocator *config, void *ctx) {
int error = aws_last_error();
ASSERT_NULL(error, "error should be initialized to NULL");
ASSERT_INT_EQUALS(0, aws_last_error(), "error code should be initialized to 0");
struct aws_error_info test_error_2 = errors[1];
aws_raise_error(test_error_2.error_code + 1);
error = aws_last_error();
/* error code should still propogate */
ASSERT_INT_EQUALS(test_error_2.error_code + 1, error, "Expected error code %d, but was %d",
test_error_2.error_code + 1, error);
/* string should be invalid though */
ASSERT_STR_EQUALS("Unknown Error Code", aws_error_str(error), "Expected error string %s, but got %s",
"Unknown Error Code", aws_error_str(error));
ASSERT_STR_EQUALS("Unknown Error Code", aws_error_lib_name(error), "Expected error string %s, but got %s",
"Unknown Error Code", aws_error_lib_name(error));
ASSERT_STR_EQUALS("Unknown Error Code", aws_error_debug_str(error), "Expected error string %s, but got %s",
"Unknown Error Code", aws_error_debug_str(error));
return 0;
}
static int unknown_error_code_no_slot_test_fn(struct aws_allocator *config, void *ctx) {
int error = aws_last_error();
ASSERT_NULL(error, "error should be initialized to NULL");
ASSERT_INT_EQUALS(0, aws_last_error(), "error code should be initialized to 0");
int non_slotted_error_code = 3000;
aws_raise_error(non_slotted_error_code);
error = aws_last_error();
/* error code should still propogate */
ASSERT_INT_EQUALS(non_slotted_error_code, error, "Expected error code %d, but was %d",
non_slotted_error_code, error);
/* string should be invalid though */
ASSERT_STR_EQUALS("Unknown Error Code", aws_error_str(error), "Expected error string %s, but got %s",
"Unknown Error Code", aws_error_str(error));
ASSERT_STR_EQUALS("Unknown Error Code", aws_error_lib_name(error), "Expected error string %s, but got %s",
"Unknown Error Code", aws_error_lib_name(error));
ASSERT_STR_EQUALS("Unknown Error Code", aws_error_debug_str(error), "Expected error string %s, but got %s",
"Unknown Error Code", aws_error_debug_str(error));
return 0;
}
static int unknown_error_code_range_too_large_test_fn(struct aws_allocator *config, void *ctx) {
int error = aws_last_error();
ASSERT_NULL(error, "error should be initialized to NULL");
ASSERT_INT_EQUALS(0, aws_last_error(), "error code should be initialized to 0");
int oor_error_code = 10001;
aws_raise_error(oor_error_code);
error = aws_last_error();
/* error code should still propogate */
ASSERT_INT_EQUALS(oor_error_code, error, "Expected error code %d, but was %d",
oor_error_code, error);
/* string should be invalid though */
ASSERT_STR_EQUALS("Unknown Error Code", aws_error_str(error), "Expected error string %s, but got %s",
"Unknown Error Code", aws_error_str(error));
ASSERT_STR_EQUALS("Unknown Error Code", aws_error_lib_name(error), "Expected error string %s, but got %s",
"Unknown Error Code", aws_error_lib_name(error));
ASSERT_STR_EQUALS("Unknown Error Code", aws_error_debug_str(error), "Expected error string %s, but got %s",
"Unknown Error Code", aws_error_debug_str(error));
return 0;
}
struct error_thread_test_data {
int thread_1_code;
int thread_1_get_last_code;
uint64_t thread_1_id;
int thread_1_encountered_count;
int thread_2_code;
int thread_2_get_last_code;
int thread_2_encountered_count;
uint64_t thread_2_id;
};
static void error_thread_test_thread_local_cb(int err, void *ctx) {
struct error_thread_test_data *cb_data = (struct error_thread_test_data *)ctx;
uint64_t thread_id = aws_thread_current_thread_id();
if(thread_id == cb_data->thread_1_id) {
cb_data->thread_1_code = err;
cb_data->thread_1_get_last_code = aws_last_error();
cb_data->thread_1_encountered_count += 1;
return;
}
cb_data->thread_2_code = err;
cb_data->thread_2_get_last_code = aws_last_error();
cb_data->thread_2_id = aws_thread_current_thread_id();
cb_data->thread_2_encountered_count += 1;
}
static void error_thread_fn(void *arg) {
aws_set_thread_local_error_handler_fn(error_thread_test_thread_local_cb, arg);
aws_raise_error(15);
}
static int error_code_cross_thread_test_fn(struct aws_allocator *allocator, void *ctx) {
struct error_thread_test_data test_data = {
.thread_1_code = 0,
.thread_1_get_last_code = 0,
.thread_1_encountered_count = 0,
.thread_2_code = 0,
.thread_2_get_last_code = 0,
.thread_2_encountered_count = 0,
.thread_2_id = 0
};
test_data.thread_1_id = aws_thread_current_thread_id();
aws_set_thread_local_error_handler_fn(error_thread_test_thread_local_cb, &test_data);
int thread_1_error_code_expected = 5;
aws_raise_error(thread_1_error_code_expected);
struct aws_thread thread;
aws_thread_init(&thread, allocator);
ASSERT_SUCCESS(aws_thread_launch(&thread, error_thread_fn, &test_data, NULL), "Thread creation failed with error %d", aws_last_error());
ASSERT_SUCCESS(aws_thread_join(&thread), "Thread join failed with error %d", aws_last_error());
aws_thread_clean_up(&thread);
ASSERT_INT_EQUALS(1, test_data.thread_1_encountered_count, "The thread local CB should only have triggered for the first thread once.");
ASSERT_INT_EQUALS(1, test_data.thread_2_encountered_count, "The thread local CB should only have triggered for the second thread once.");
ASSERT_FALSE(test_data.thread_2_id == 0, "thread 2 id should have been set to something other than 0");
ASSERT_FALSE(test_data.thread_2_id == test_data.thread_1_id, "threads 1 and 2 should be different ids");
ASSERT_INT_EQUALS(thread_1_error_code_expected, aws_last_error(), "Thread 1's error should not have changed when thread 2 raised an error.");
ASSERT_INT_EQUALS(thread_1_error_code_expected, test_data.thread_1_code, "Thread 1 code should have matched the original error.");
ASSERT_INT_EQUALS(thread_1_error_code_expected, test_data.thread_1_get_last_code, "Thread 1 get last error code should have matched the original error.");
ASSERT_INT_EQUALS(15, test_data.thread_2_code, "Thread 2 code should have matched the thread 2 error.");
ASSERT_INT_EQUALS(15, test_data.thread_2_get_last_code, "Thread 2 get last error code should have matched the thread 2 error.");
return 0;
}
AWS_TEST_CASE_FIXTURE(raise_errors_test, setup_errors_test_fn, raise_errors_test_fn, teardown_errors_test_fn, NULL)
AWS_TEST_CASE_FIXTURE(error_callback_test, setup_errors_test_fn, error_callback_test_fn, teardown_errors_test_fn, NULL)
AWS_TEST_CASE_FIXTURE(reset_errors_test, setup_errors_test_fn, reset_errors_test_fn, teardown_errors_test_fn, NULL)
AWS_TEST_CASE_FIXTURE(unknown_error_code_in_slot_test, setup_errors_test_fn, unknown_error_code_in_slot_test_fn, teardown_errors_test_fn, NULL)
AWS_TEST_CASE_FIXTURE(unknown_error_code_no_slot_test, setup_errors_test_fn, unknown_error_code_no_slot_test_fn, teardown_errors_test_fn, NULL)
AWS_TEST_CASE_FIXTURE(unknown_error_code_range_too_large_test, setup_errors_test_fn, unknown_error_code_range_too_large_test_fn, teardown_errors_test_fn, NULL)
AWS_TEST_CASE_FIXTURE(error_code_cross_thread_test, setup_errors_test_fn, error_code_cross_thread_test_fn, teardown_errors_test_fn, NULL)