tor/src/test/log_test_helpers.h

/* Copyright (c) 2014-2017, The Tor Project, Inc. */
/* See LICENSE for licensing information */

#include "or.h"

#ifndef TOR_LOG_TEST_HELPERS_H
#define TOR_LOG_TEST_HELPERS_H

/** An element of mock_saved_logs(); records the log element that we
 * received. */
typedef struct mock_saved_log_entry_t {
  int severity;
  const char *funcname;
  const char *suffix;
  const char *format;
  char *generated_msg;
} mock_saved_log_entry_t;

void mock_clean_saved_logs(void);
const smartlist_t *mock_saved_logs(void);
void setup_capture_of_logs(int new_level);
void setup_full_capture_of_logs(int new_level);
void teardown_capture_of_logs(void);

int mock_saved_log_has_message(const char *msg);
int mock_saved_log_has_message_containing(const char *msg);
int mock_saved_log_has_severity(int severity);
int mock_saved_log_has_entry(void);
int mock_saved_log_n_entries(void);
void mock_dump_saved_logs(void);

#define assert_log_predicate(predicate, failure_msg)   \
  do {                                                 \
    if (!(predicate)) {                                \
      tt_fail_msg((failure_msg));                      \
      mock_dump_saved_logs();                          \
      TT_EXIT_TEST_FUNCTION;                           \
    }                                                  \
  } while (0)

#define expect_log_msg(str)                             \
  assert_log_predicate(mock_saved_log_has_message(str), \
                "expected log to contain " # str);

#define expect_log_msg_containing(str) \
  assert_log_predicate(mock_saved_log_has_message_containing(str), \
                "expected log to contain " # str);

#define expect_log_msg_containing_either(str1, str2)                    \
  assert_log_predicate(mock_saved_log_has_message_containing(str1) ||   \
                       mock_saved_log_has_message_containing(str2),     \
                       "expected log to contain " # str1 " or " # str2);

#define expect_log_msg_containing_either3(str1, str2, str3)             \
  assert_log_predicate(mock_saved_log_has_message_containing(str1) ||   \
                       mock_saved_log_has_message_containing(str2) ||   \
                       mock_saved_log_has_message_containing(str3),     \
                       "expected log to contain " # str1 " or " # str2  \
                       " or " # str3);

#define expect_log_msg_containing_either4(str1, str2, str3, str4)       \
  assert_log_predicate(mock_saved_log_has_message_containing(str1) ||   \
                       mock_saved_log_has_message_containing(str2) ||   \
                       mock_saved_log_has_message_containing(str3) ||   \
                       mock_saved_log_has_message_containing(str4),     \
                       "expected log to contain " # str1 " or " # str2  \
                       " or " # str3 " or " # str4);

#define expect_single_log_msg(str) \
  do {                                                                  \
                                                                        \
    assert_log_predicate(mock_saved_log_has_message_containing(str) &&  \
                         mock_saved_log_n_entries() == 1,               \
                  "expected log to contain exactly 1 message " # str); \
  } while (0);

#define expect_single_log_msg_containing(str) \
  do {                                                                  \
    assert_log_predicate(mock_saved_log_has_message_containing(str)&&   \
                         mock_saved_log_n_entries() == 1 ,              \
            "expected log to contain 1 message, containing " # str);     \
  } while (0);

#define expect_no_log_msg(str) \
  assert_log_predicate(!mock_saved_log_has_message(str), \
                "expected log to not contain " # str);

#define expect_log_severity(severity) \
  assert_log_predicate(mock_saved_log_has_severity(severity), \
                "expected log to contain severity " # severity);

#define expect_no_log_severity(severity) \
  assert_log_predicate(!mock_saved_log_has_severity(severity), \
                "expected log to not contain severity " # severity);

#define expect_log_entry() \
  assert_log_predicate(mock_saved_log_has_entry(), \
                "expected log to contain entries");

#define expect_no_log_entry() \
  assert_log_predicate(!mock_saved_log_has_entry(), \
                "expected log to not contain entries");

#endif