Christopher Haster
ab39a8fde9
kiwibd has been used extensively in external benchmarks, it makes sense to make it the default bd for the bench runner: - test_runner - defaults to emubd - more testing features - bench_runner - defaults to kiwibd - lighter-weight disks The benefit of kiwibd is the disk is just one big blob of RAM, so basically no overhead. This is important when benchmarking on multi-GiB disks. emubd is much heavy, but as a tradeoff can do quite a bit more: bad-block simulation, wear simulation, snapshotting, etc. --- In theory the bd used by each runner can be controlled at compile-time by defining -DBENCH_EMUBD, etc, but I have a feeling no one will ever use this.
127 lines
2.8 KiB
C
127 lines
2.8 KiB
C
/*
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* Runner for littlefs tests
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*
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* Copyright (c) 2022, The littlefs authors.
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef TEST_RUNNER_H
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#define TEST_RUNNER_H
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// default to using emubd for tests
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#if !defined(TEST_EMUBD) && !defined(TEST_KIWIBD)
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#define TEST_EMUBD
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#endif
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// ifdef macros for emubd vs kiwibd
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#ifdef TEST_EMUBD
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#define TEST_IFDEF_EMUBD(a, b) (a)
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#else
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#define TEST_IFDEF_EMUBD(a, b) (b)
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#endif
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#ifdef TEST_KIWIBD
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#define TEST_IFDEF_KIWIBD(a, b) (a)
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#else
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#define TEST_IFDEF_KIWIBD(a, b) (b)
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#endif
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// override LFS3_TRACE
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void test_trace(const char *fmt, ...);
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#define LFS3_TRACE_(fmt, ...) \
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test_trace("%s:%d:trace: " fmt "%s\n", \
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__FILE__, \
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__LINE__, \
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__VA_ARGS__)
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#define LFS3_TRACE(...) LFS3_TRACE_(__VA_ARGS__, "")
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#define LFS3_EMUBD_TRACE(...) LFS3_TRACE_(__VA_ARGS__, "")
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#define LFS3_KIWIBD_TRACE(...) LFS3_TRACE_(__VA_ARGS__, "")
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// note these are indirectly included in any generated files
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#ifndef TEST_KIWIBD
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#include "bd/lfs3_emubd.h"
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#else
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#include "bd/lfs3_kiwibd.h"
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#endif
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#include <stdio.h>
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#include <stdint.h>
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// give source a chance to define feature macros
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#undef _FEATURES_H
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#undef _STDIO_H
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// generated test configurations
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struct lfs3_cfg;
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enum test_flags {
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TEST_INTERNAL = 0x1,
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TEST_REENTRANT = 0x2,
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TEST_FUZZ = 0x4,
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};
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typedef uint8_t test_flags_t;
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typedef struct test_define {
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const char *name;
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intmax_t *define;
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intmax_t (*cb)(void *data, size_t i);
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void *data;
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size_t permutations;
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} test_define_t;
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struct test_case {
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const char *name;
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const char *path;
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test_flags_t flags;
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const test_define_t *defines;
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size_t permutations;
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bool (*if_)(void);
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void (*run)(struct lfs3_cfg *cfg);
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};
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struct test_suite {
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const char *name;
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const char *path;
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test_flags_t flags;
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const test_define_t *defines;
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size_t define_count;
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const struct test_case *cases;
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size_t case_count;
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};
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extern const struct test_suite *const test_suites[];
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extern const size_t test_suite_count;
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// this variable tracks the number of powerlosses triggered during the
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// current test permutation, this is useful for both tests and debugging
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extern volatile size_t TEST_PLS;
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// deterministic prng for pseudo-randomness in tests
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uint32_t test_prng(uint32_t *state);
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#define TEST_PRNG(state) test_prng(state)
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// generation of specific permutations of an array for exhaustive testing
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size_t test_factorial(size_t x);
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void test_permutation(size_t i, uint32_t *buffer, size_t size);
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#define TEST_FACTORIAL(x) test_factorial(x)
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#define TEST_PERMUTATION(i, buffer, size) test_permutation(i, buffer, size)
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// declare implicit defines as global intmax_ts
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#define TEST_DEFINE(k, v) \
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extern intmax_t k;
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#include "test_defines.h"
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#undef TEST_DEFINE
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#endif
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