From b7ca22ba79e256ed6e74d82c51e28d5d2000a680 Mon Sep 17 00:00:00 2001 From: Peter McGoron Date: Sat, 10 Jul 2021 15:10:00 -0400 Subject: [PATCH] write line parser --- Makefile | 10 + README | 10 + input.c | 60 +++ input.h | 35 ++ test/greatest.h | 1266 +++++++++++++++++++++++++++++++++++++++++++++++ test/input.c | 29 ++ 6 files changed, 1410 insertions(+) create mode 100644 Makefile create mode 100644 README create mode 100644 input.c create mode 100644 input.h create mode 100644 test/greatest.h create mode 100644 test/input.c diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..e9161f3 --- /dev/null +++ b/Makefile @@ -0,0 +1,10 @@ +TESTS=test/input + +tests: $(TESTS) + for i in $(TESTS); do ./$$i; done + +TEST_INPUT=test/input.o input.o +test/input: $(TEST_INPUT) + $(CC) -Wall $(TEST_INPUT) -o test/input +.c.o: + $(CC) -std=c89 -Wall -c $< -o $@ diff --git a/README b/README new file mode 100644 index 0000000..4bc85ff --- /dev/null +++ b/README @@ -0,0 +1,10 @@ +# libscomp -- Simple Control Protocol # + +This is a C89+ library for parsing and executing commands. It is written +for a freestanding implementation, meaning that + +* It does no dynamic allocation +* It does not require any standard library functions +* It can run on anything with a C compiler + +This is designed for microcontrollers that take ASCII input from serial. diff --git a/input.c b/input.c new file mode 100644 index 0000000..eaaeacb --- /dev/null +++ b/input.c @@ -0,0 +1,60 @@ +#include "input.h" + +enum { READ, DISCARD }; + +void libscomm_reset(struct libscomm_input *in) { + in->state = READ; + in->len = 0; +} + +static enum libscomm_input_r parse(struct libscomm_input *in, + struct libscomm_line *line) { + char *s = in->intbuf; + + line->name = (*s == ':'); + line->len = 0; + + while (line->len < LIBSCOMM_MAXARG) { + line->buf[line->len++] = s; + for (; *s && *s != '\t'; s++); + + if (!*s) { + return LIBSCOMM_COMPLETE; + } else { + *s = 0; + s++; + } + } + + return LIBSCOMM_ARG_OVERFLOW; +} + +enum libscomm_input_r libscomm_read(struct libscomm_input *in, + struct libscomm_inbuf *buf, + struct libscomm_line *line) { + char c; + + while (buf->l > 0) { + buf->l--; + c = *buf->s++; + + if (in->state == DISCARD) { + if (c == '\n') { + libscomm_reset(in); + return LIBSCOMM_OVERFLOW; + } + } else { + switch (c) { + case '\n': + in->intbuf[in->len] = 0; + return parse(in, line); + default: + in->intbuf[in->len++] = c; + if (in->len == LIBSCOMM_MAXBUF) + in->state = DISCARD; + } + } + } + + return LIBSCOMM_MORE; +} diff --git a/input.h b/input.h new file mode 100644 index 0000000..300e319 --- /dev/null +++ b/input.h @@ -0,0 +1,35 @@ +#pragma once +#include + +#define LIBSCOMM_MAXARG 32 +#define LIBSCOMM_MAXBUF 1024 + +struct libscomm_line { + size_t name; + char *buf[LIBSCOMM_MAXARG]; + size_t len; +}; + +struct libscomm_inbuf { + const char *s; + size_t l; +}; + +struct libscomm_input { + int state; + + char intbuf[LIBSCOMM_MAXBUF]; + size_t len; +}; + +enum libscomm_input_r { + LIBSCOMM_MORE, + LIBSCOMM_OVERFLOW, + LIBSCOMM_ARG_OVERFLOW, + LIBSCOMM_COMPLETE +}; + +void libscomm_reset(struct libscomm_input *); +enum libscomm_input_r libscomm_read(struct libscomm_input *, + struct libscomm_inbuf *, + struct libscomm_line *); diff --git a/test/greatest.h b/test/greatest.h new file mode 100644 index 0000000..af0c053 --- /dev/null +++ b/test/greatest.h @@ -0,0 +1,1266 @@ +/* + * Copyright (c) 2011-2021 Scott Vokes + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef GREATEST_H +#define GREATEST_H + +#if defined(__cplusplus) && !defined(GREATEST_NO_EXTERN_CPLUSPLUS) +extern "C" { +#endif + +/* 1.5.0 */ +#define GREATEST_VERSION_MAJOR 1 +#define GREATEST_VERSION_MINOR 5 +#define GREATEST_VERSION_PATCH 0 + +/* A unit testing system for C, contained in 1 file. + * It doesn't use dynamic allocation or depend on anything + * beyond ANSI C89. + * + * An up-to-date version can be found at: + * https://github.com/silentbicycle/greatest/ + */ + + +/********************************************************************* + * Minimal test runner template + *********************************************************************/ +#if 0 + +#include "greatest.h" + +TEST foo_should_foo(void) { + PASS(); +} + +static void setup_cb(void *data) { + printf("setup callback for each test case\n"); +} + +static void teardown_cb(void *data) { + printf("teardown callback for each test case\n"); +} + +SUITE(suite) { + /* Optional setup/teardown callbacks which will be run before/after + * every test case. If using a test suite, they will be cleared when + * the suite finishes. */ + SET_SETUP(setup_cb, voidp_to_callback_data); + SET_TEARDOWN(teardown_cb, voidp_to_callback_data); + + RUN_TEST(foo_should_foo); +} + +/* Add definitions that need to be in the test runner's main file. */ +GREATEST_MAIN_DEFS(); + +/* Set up, run suite(s) of tests, report pass/fail/skip stats. */ +int run_tests(void) { + GREATEST_INIT(); /* init. greatest internals */ + /* List of suites to run (if any). */ + RUN_SUITE(suite); + + /* Tests can also be run directly, without using test suites. */ + RUN_TEST(foo_should_foo); + + GREATEST_PRINT_REPORT(); /* display results */ + return greatest_all_passed(); +} + +/* main(), for a standalone command-line test runner. + * This replaces run_tests above, and adds command line option + * handling and exiting with a pass/fail status. */ +int main(int argc, char **argv) { + GREATEST_MAIN_BEGIN(); /* init & parse command-line args */ + RUN_SUITE(suite); + GREATEST_MAIN_END(); /* display results */ +} + +#endif +/*********************************************************************/ + + +#include +#include +#include +#include + +/*********** + * Options * + ***********/ + +/* Default column width for non-verbose output. */ +#ifndef GREATEST_DEFAULT_WIDTH +#define GREATEST_DEFAULT_WIDTH 72 +#endif + +/* FILE *, for test logging. */ +#ifndef GREATEST_STDOUT +#define GREATEST_STDOUT stdout +#endif + +/* Remove GREATEST_ prefix from most commonly used symbols? */ +#ifndef GREATEST_USE_ABBREVS +#define GREATEST_USE_ABBREVS 1 +#endif + +/* Set to 0 to disable all use of setjmp/longjmp. */ +#ifndef GREATEST_USE_LONGJMP +#define GREATEST_USE_LONGJMP 0 +#endif + +/* Make it possible to replace fprintf with another + * function with the same interface. */ +#ifndef GREATEST_FPRINTF +#define GREATEST_FPRINTF fprintf +#endif + +#if GREATEST_USE_LONGJMP +#include +#endif + +/* Set to 0 to disable all use of time.h / clock(). */ +#ifndef GREATEST_USE_TIME +#define GREATEST_USE_TIME 1 +#endif + +#if GREATEST_USE_TIME +#include +#endif + +/* Floating point type, for ASSERT_IN_RANGE. */ +#ifndef GREATEST_FLOAT +#define GREATEST_FLOAT double +#define GREATEST_FLOAT_FMT "%g" +#endif + +/* Size of buffer for test name + optional '_' separator and suffix */ +#ifndef GREATEST_TESTNAME_BUF_SIZE +#define GREATEST_TESTNAME_BUF_SIZE 128 +#endif + + +/********* + * Types * + *********/ + +/* Info for the current running suite. */ +typedef struct greatest_suite_info { + unsigned int tests_run; + unsigned int passed; + unsigned int failed; + unsigned int skipped; + +#if GREATEST_USE_TIME + /* timers, pre/post running suite and individual tests */ + clock_t pre_suite; + clock_t post_suite; + clock_t pre_test; + clock_t post_test; +#endif +} greatest_suite_info; + +/* Type for a suite function. */ +typedef void greatest_suite_cb(void); + +/* Types for setup/teardown callbacks. If non-NULL, these will be run + * and passed the pointer to their additional data. */ +typedef void greatest_setup_cb(void *udata); +typedef void greatest_teardown_cb(void *udata); + +/* Type for an equality comparison between two pointers of the same type. + * Should return non-0 if equal, otherwise 0. + * UDATA is a closure value, passed through from ASSERT_EQUAL_T[m]. */ +typedef int greatest_equal_cb(const void *expd, const void *got, void *udata); + +/* Type for a callback that prints a value pointed to by T. + * Return value has the same meaning as printf's. + * UDATA is a closure value, passed through from ASSERT_EQUAL_T[m]. */ +typedef int greatest_printf_cb(const void *t, void *udata); + +/* Callbacks for an arbitrary type; needed for type-specific + * comparisons via GREATEST_ASSERT_EQUAL_T[m].*/ +typedef struct greatest_type_info { + greatest_equal_cb *equal; + greatest_printf_cb *print; +} greatest_type_info; + +typedef struct greatest_memory_cmp_env { + const unsigned char *exp; + const unsigned char *got; + size_t size; +} greatest_memory_cmp_env; + +/* Callbacks for string and raw memory types. */ +extern greatest_type_info greatest_type_info_string; +extern greatest_type_info greatest_type_info_memory; + +typedef enum { + GREATEST_FLAG_FIRST_FAIL = 0x01, + GREATEST_FLAG_LIST_ONLY = 0x02, + GREATEST_FLAG_ABORT_ON_FAIL = 0x04 +} greatest_flag_t; + +/* Internal state for a PRNG, used to shuffle test order. */ +struct greatest_prng { + unsigned char random_order; /* use random ordering? */ + unsigned char initialized; /* is random ordering initialized? */ + unsigned char pad_0[6]; + unsigned long state; /* PRNG state */ + unsigned long count; /* how many tests, this pass */ + unsigned long count_ceil; /* total number of tests */ + unsigned long count_run; /* total tests run */ + unsigned long a; /* LCG multiplier */ + unsigned long c; /* LCG increment */ + unsigned long m; /* LCG modulus, based on count_ceil */ +}; + +/* Struct containing all test runner state. */ +typedef struct greatest_run_info { + unsigned char flags; + unsigned char verbosity; + unsigned char running_test; /* guard for nested RUN_TEST calls */ + unsigned char exact_name_match; + + unsigned int tests_run; /* total test count */ + + /* currently running test suite */ + greatest_suite_info suite; + + /* overall pass/fail/skip counts */ + unsigned int passed; + unsigned int failed; + unsigned int skipped; + unsigned int assertions; + + /* info to print about the most recent failure */ + unsigned int fail_line; + unsigned int pad_1; + const char *fail_file; + const char *msg; + + /* current setup/teardown hooks and userdata */ + greatest_setup_cb *setup; + void *setup_udata; + greatest_teardown_cb *teardown; + void *teardown_udata; + + /* formatting info for ".....s...F"-style output */ + unsigned int col; + unsigned int width; + + /* only run a specific suite or test */ + const char *suite_filter; + const char *test_filter; + const char *test_exclude; + const char *name_suffix; /* print suffix with test name */ + char name_buf[GREATEST_TESTNAME_BUF_SIZE]; + + struct greatest_prng prng[2]; /* 0: suites, 1: tests */ + +#if GREATEST_USE_TIME + /* overall timers */ + clock_t begin; + clock_t end; +#endif + +#if GREATEST_USE_LONGJMP + int pad_jmp_buf; + unsigned char pad_2[4]; + jmp_buf jump_dest; +#endif +} greatest_run_info; + +struct greatest_report_t { + /* overall pass/fail/skip counts */ + unsigned int passed; + unsigned int failed; + unsigned int skipped; + unsigned int assertions; +}; + +/* Global var for the current testing context. + * Initialized by GREATEST_MAIN_DEFS(). */ +extern greatest_run_info greatest_info; + +/* Type for ASSERT_ENUM_EQ's ENUM_STR argument. */ +typedef const char *greatest_enum_str_fun(int value); + + +/********************** + * Exported functions * + **********************/ + +/* These are used internally by greatest macros. */ +int greatest_test_pre(const char *name); +void greatest_test_post(int res); +int greatest_do_assert_equal_t(const void *expd, const void *got, + greatest_type_info *type_info, void *udata); +void greatest_prng_init_first_pass(int id); +int greatest_prng_init_second_pass(int id, unsigned long seed); +void greatest_prng_step(int id); + +/* These are part of the public greatest API. */ +void GREATEST_SET_SETUP_CB(greatest_setup_cb *cb, void *udata); +void GREATEST_SET_TEARDOWN_CB(greatest_teardown_cb *cb, void *udata); +void GREATEST_INIT(void); +void GREATEST_PRINT_REPORT(void); +int greatest_all_passed(void); +void greatest_set_suite_filter(const char *filter); +void greatest_set_test_filter(const char *filter); +void greatest_set_test_exclude(const char *filter); +void greatest_set_exact_name_match(void); +void greatest_stop_at_first_fail(void); +void greatest_abort_on_fail(void); +void greatest_list_only(void); +void greatest_get_report(struct greatest_report_t *report); +unsigned int greatest_get_verbosity(void); +void greatest_set_verbosity(unsigned int verbosity); +void greatest_set_flag(greatest_flag_t flag); +void greatest_set_test_suffix(const char *suffix); + + +/******************** +* Language Support * +********************/ + +/* If __VA_ARGS__ (C99) is supported, allow parametric testing +* without needing to manually manage the argument struct. */ +#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 19901L) || \ + (defined(_MSC_VER) && _MSC_VER >= 1800) +#define GREATEST_VA_ARGS +#endif + + +/********** + * Macros * + **********/ + +/* Define a suite. (The duplication is intentional -- it eliminates + * a warning from -Wmissing-declarations.) */ +#define GREATEST_SUITE(NAME) void NAME(void); void NAME(void) + +/* Declare a suite, provided by another compilation unit. */ +#define GREATEST_SUITE_EXTERN(NAME) void NAME(void) + +/* Start defining a test function. + * The arguments are not included, to allow parametric testing. */ +#define GREATEST_TEST static enum greatest_test_res + +/* PASS/FAIL/SKIP result from a test. Used internally. */ +typedef enum greatest_test_res { + GREATEST_TEST_RES_PASS = 0, + GREATEST_TEST_RES_FAIL = -1, + GREATEST_TEST_RES_SKIP = 1 +} greatest_test_res; + +/* Run a suite. */ +#define GREATEST_RUN_SUITE(S_NAME) greatest_run_suite(S_NAME, #S_NAME) + +/* Run a test in the current suite. */ +#define GREATEST_RUN_TEST(TEST) \ + do { \ + if (greatest_test_pre(#TEST) == 1) { \ + enum greatest_test_res res = GREATEST_SAVE_CONTEXT(); \ + if (res == GREATEST_TEST_RES_PASS) { \ + res = TEST(); \ + } \ + greatest_test_post(res); \ + } \ + } while (0) + +/* Ignore a test, don't warn about it being unused. */ +#define GREATEST_IGNORE_TEST(TEST) (void)TEST + +/* Run a test in the current suite with one void * argument, + * which can be a pointer to a struct with multiple arguments. */ +#define GREATEST_RUN_TEST1(TEST, ENV) \ + do { \ + if (greatest_test_pre(#TEST) == 1) { \ + enum greatest_test_res res = GREATEST_SAVE_CONTEXT(); \ + if (res == GREATEST_TEST_RES_PASS) { \ + res = TEST(ENV); \ + } \ + greatest_test_post(res); \ + } \ + } while (0) + +#ifdef GREATEST_VA_ARGS +#define GREATEST_RUN_TESTp(TEST, ...) \ + do { \ + if (greatest_test_pre(#TEST) == 1) { \ + enum greatest_test_res res = GREATEST_SAVE_CONTEXT(); \ + if (res == GREATEST_TEST_RES_PASS) { \ + res = TEST(__VA_ARGS__); \ + } \ + greatest_test_post(res); \ + } \ + } while (0) +#endif + + +/* Check if the test runner is in verbose mode. */ +#define GREATEST_IS_VERBOSE() ((greatest_info.verbosity) > 0) +#define GREATEST_LIST_ONLY() \ + (greatest_info.flags & GREATEST_FLAG_LIST_ONLY) +#define GREATEST_FIRST_FAIL() \ + (greatest_info.flags & GREATEST_FLAG_FIRST_FAIL) +#define GREATEST_ABORT_ON_FAIL() \ + (greatest_info.flags & GREATEST_FLAG_ABORT_ON_FAIL) +#define GREATEST_FAILURE_ABORT() \ + (GREATEST_FIRST_FAIL() && \ + (greatest_info.suite.failed > 0 || greatest_info.failed > 0)) + +/* Message-less forms of tests defined below. */ +#define GREATEST_PASS() GREATEST_PASSm(NULL) +#define GREATEST_FAIL() GREATEST_FAILm(NULL) +#define GREATEST_SKIP() GREATEST_SKIPm(NULL) +#define GREATEST_ASSERT(COND) \ + GREATEST_ASSERTm(#COND, COND) +#define GREATEST_ASSERT_OR_LONGJMP(COND) \ + GREATEST_ASSERT_OR_LONGJMPm(#COND, COND) +#define GREATEST_ASSERT_FALSE(COND) \ + GREATEST_ASSERT_FALSEm(#COND, COND) +#define GREATEST_ASSERT_EQ(EXP, GOT) \ + GREATEST_ASSERT_EQm(#EXP " != " #GOT, EXP, GOT) +#define GREATEST_ASSERT_NEQ(EXP, GOT) \ + GREATEST_ASSERT_NEQm(#EXP " == " #GOT, EXP, GOT) +#define GREATEST_ASSERT_GT(EXP, GOT) \ + GREATEST_ASSERT_GTm(#EXP " <= " #GOT, EXP, GOT) +#define GREATEST_ASSERT_GTE(EXP, GOT) \ + GREATEST_ASSERT_GTEm(#EXP " < " #GOT, EXP, GOT) +#define GREATEST_ASSERT_LT(EXP, GOT) \ + GREATEST_ASSERT_LTm(#EXP " >= " #GOT, EXP, GOT) +#define GREATEST_ASSERT_LTE(EXP, GOT) \ + GREATEST_ASSERT_LTEm(#EXP " > " #GOT, EXP, GOT) +#define GREATEST_ASSERT_EQ_FMT(EXP, GOT, FMT) \ + GREATEST_ASSERT_EQ_FMTm(#EXP " != " #GOT, EXP, GOT, FMT) +#define GREATEST_ASSERT_IN_RANGE(EXP, GOT, TOL) \ + GREATEST_ASSERT_IN_RANGEm(#EXP " != " #GOT " +/- " #TOL, EXP, GOT, TOL) +#define GREATEST_ASSERT_EQUAL_T(EXP, GOT, TYPE_INFO, UDATA) \ + GREATEST_ASSERT_EQUAL_Tm(#EXP " != " #GOT, EXP, GOT, TYPE_INFO, UDATA) +#define GREATEST_ASSERT_STR_EQ(EXP, GOT) \ + GREATEST_ASSERT_STR_EQm(#EXP " != " #GOT, EXP, GOT) +#define GREATEST_ASSERT_STRN_EQ(EXP, GOT, SIZE) \ + GREATEST_ASSERT_STRN_EQm(#EXP " != " #GOT, EXP, GOT, SIZE) +#define GREATEST_ASSERT_MEM_EQ(EXP, GOT, SIZE) \ + GREATEST_ASSERT_MEM_EQm(#EXP " != " #GOT, EXP, GOT, SIZE) +#define GREATEST_ASSERT_ENUM_EQ(EXP, GOT, ENUM_STR) \ + GREATEST_ASSERT_ENUM_EQm(#EXP " != " #GOT, EXP, GOT, ENUM_STR) + +/* The following forms take an additional message argument first, + * to be displayed by the test runner. */ + +/* Fail if a condition is not true, with message. */ +#define GREATEST_ASSERTm(MSG, COND) \ + do { \ + greatest_info.assertions++; \ + if (!(COND)) { GREATEST_FAILm(MSG); } \ + } while (0) + +/* Fail if a condition is not true, longjmping out of test. */ +#define GREATEST_ASSERT_OR_LONGJMPm(MSG, COND) \ + do { \ + greatest_info.assertions++; \ + if (!(COND)) { GREATEST_FAIL_WITH_LONGJMPm(MSG); } \ + } while (0) + +/* Fail if a condition is not false, with message. */ +#define GREATEST_ASSERT_FALSEm(MSG, COND) \ + do { \ + greatest_info.assertions++; \ + if ((COND)) { GREATEST_FAILm(MSG); } \ + } while (0) + +/* Internal macro for relational assertions */ +#define GREATEST__REL(REL, MSG, EXP, GOT) \ + do { \ + greatest_info.assertions++; \ + if (!((EXP) REL (GOT))) { GREATEST_FAILm(MSG); } \ + } while (0) + +/* Fail if EXP is not ==, !=, >, <, >=, or <= to GOT. */ +#define GREATEST_ASSERT_EQm(MSG,E,G) GREATEST__REL(==, MSG,E,G) +#define GREATEST_ASSERT_NEQm(MSG,E,G) GREATEST__REL(!=, MSG,E,G) +#define GREATEST_ASSERT_GTm(MSG,E,G) GREATEST__REL(>, MSG,E,G) +#define GREATEST_ASSERT_GTEm(MSG,E,G) GREATEST__REL(>=, MSG,E,G) +#define GREATEST_ASSERT_LTm(MSG,E,G) GREATEST__REL(<, MSG,E,G) +#define GREATEST_ASSERT_LTEm(MSG,E,G) GREATEST__REL(<=, MSG,E,G) + +/* Fail if EXP != GOT (equality comparison by ==). + * Warning: FMT, EXP, and GOT will be evaluated more + * than once on failure. */ +#define GREATEST_ASSERT_EQ_FMTm(MSG, EXP, GOT, FMT) \ + do { \ + greatest_info.assertions++; \ + if ((EXP) != (GOT)) { \ + GREATEST_FPRINTF(GREATEST_STDOUT, "\nExpected: "); \ + GREATEST_FPRINTF(GREATEST_STDOUT, FMT, EXP); \ + GREATEST_FPRINTF(GREATEST_STDOUT, "\n Got: "); \ + GREATEST_FPRINTF(GREATEST_STDOUT, FMT, GOT); \ + GREATEST_FPRINTF(GREATEST_STDOUT, "\n"); \ + GREATEST_FAILm(MSG); \ + } \ + } while (0) + +/* Fail if EXP is not equal to GOT, printing enum IDs. */ +#define GREATEST_ASSERT_ENUM_EQm(MSG, EXP, GOT, ENUM_STR) \ + do { \ + int greatest_EXP = (int)(EXP); \ + int greatest_GOT = (int)(GOT); \ + greatest_enum_str_fun *greatest_ENUM_STR = ENUM_STR; \ + if (greatest_EXP != greatest_GOT) { \ + GREATEST_FPRINTF(GREATEST_STDOUT, "\nExpected: %s", \ + greatest_ENUM_STR(greatest_EXP)); \ + GREATEST_FPRINTF(GREATEST_STDOUT, "\n Got: %s\n", \ + greatest_ENUM_STR(greatest_GOT)); \ + GREATEST_FAILm(MSG); \ + } \ + } while (0) \ + +/* Fail if GOT not in range of EXP +|- TOL. */ +#define GREATEST_ASSERT_IN_RANGEm(MSG, EXP, GOT, TOL) \ + do { \ + GREATEST_FLOAT greatest_EXP = (EXP); \ + GREATEST_FLOAT greatest_GOT = (GOT); \ + GREATEST_FLOAT greatest_TOL = (TOL); \ + greatest_info.assertions++; \ + if ((greatest_EXP > greatest_GOT && \ + greatest_EXP - greatest_GOT > greatest_TOL) || \ + (greatest_EXP < greatest_GOT && \ + greatest_GOT - greatest_EXP > greatest_TOL)) { \ + GREATEST_FPRINTF(GREATEST_STDOUT, \ + "\nExpected: " GREATEST_FLOAT_FMT \ + " +/- " GREATEST_FLOAT_FMT \ + "\n Got: " GREATEST_FLOAT_FMT \ + "\n", \ + greatest_EXP, greatest_TOL, greatest_GOT); \ + GREATEST_FAILm(MSG); \ + } \ + } while (0) + +/* Fail if EXP is not equal to GOT, according to strcmp. */ +#define GREATEST_ASSERT_STR_EQm(MSG, EXP, GOT) \ + do { \ + GREATEST_ASSERT_EQUAL_Tm(MSG, EXP, GOT, \ + &greatest_type_info_string, NULL); \ + } while (0) \ + +/* Fail if EXP is not equal to GOT, according to strncmp. */ +#define GREATEST_ASSERT_STRN_EQm(MSG, EXP, GOT, SIZE) \ + do { \ + size_t size = SIZE; \ + GREATEST_ASSERT_EQUAL_Tm(MSG, EXP, GOT, \ + &greatest_type_info_string, &size); \ + } while (0) \ + +/* Fail if EXP is not equal to GOT, according to memcmp. */ +#define GREATEST_ASSERT_MEM_EQm(MSG, EXP, GOT, SIZE) \ + do { \ + greatest_memory_cmp_env env; \ + env.exp = (const unsigned char *)EXP; \ + env.got = (const unsigned char *)GOT; \ + env.size = SIZE; \ + GREATEST_ASSERT_EQUAL_Tm(MSG, env.exp, env.got, \ + &greatest_type_info_memory, &env); \ + } while (0) \ + +/* Fail if EXP is not equal to GOT, according to a comparison + * callback in TYPE_INFO. If they are not equal, optionally use a + * print callback in TYPE_INFO to print them. */ +#define GREATEST_ASSERT_EQUAL_Tm(MSG, EXP, GOT, TYPE_INFO, UDATA) \ + do { \ + greatest_type_info *type_info = (TYPE_INFO); \ + greatest_info.assertions++; \ + if (!greatest_do_assert_equal_t(EXP, GOT, \ + type_info, UDATA)) { \ + if (type_info == NULL || type_info->equal == NULL) { \ + GREATEST_FAILm("type_info->equal callback missing!"); \ + } else { \ + GREATEST_FAILm(MSG); \ + } \ + } \ + } while (0) \ + +/* Pass. */ +#define GREATEST_PASSm(MSG) \ + do { \ + greatest_info.msg = MSG; \ + return GREATEST_TEST_RES_PASS; \ + } while (0) + +/* Fail. */ +#define GREATEST_FAILm(MSG) \ + do { \ + greatest_info.fail_file = __FILE__; \ + greatest_info.fail_line = __LINE__; \ + greatest_info.msg = MSG; \ + if (GREATEST_ABORT_ON_FAIL()) { abort(); } \ + return GREATEST_TEST_RES_FAIL; \ + } while (0) + +/* Optional GREATEST_FAILm variant that longjmps. */ +#if GREATEST_USE_LONGJMP +#define GREATEST_FAIL_WITH_LONGJMP() GREATEST_FAIL_WITH_LONGJMPm(NULL) +#define GREATEST_FAIL_WITH_LONGJMPm(MSG) \ + do { \ + greatest_info.fail_file = __FILE__; \ + greatest_info.fail_line = __LINE__; \ + greatest_info.msg = MSG; \ + longjmp(greatest_info.jump_dest, GREATEST_TEST_RES_FAIL); \ + } while (0) +#endif + +/* Skip the current test. */ +#define GREATEST_SKIPm(MSG) \ + do { \ + greatest_info.msg = MSG; \ + return GREATEST_TEST_RES_SKIP; \ + } while (0) + +/* Check the result of a subfunction using ASSERT, etc. */ +#define GREATEST_CHECK_CALL(RES) \ + do { \ + enum greatest_test_res greatest_RES = RES; \ + if (greatest_RES != GREATEST_TEST_RES_PASS) { \ + return greatest_RES; \ + } \ + } while (0) \ + +#if GREATEST_USE_TIME +#define GREATEST_SET_TIME(NAME) \ + NAME = clock(); \ + if (NAME == (clock_t) -1) { \ + GREATEST_FPRINTF(GREATEST_STDOUT, \ + "clock error: %s\n", #NAME); \ + exit(EXIT_FAILURE); \ + } + +#define GREATEST_CLOCK_DIFF(C1, C2) \ + GREATEST_FPRINTF(GREATEST_STDOUT, " (%lu ticks, %.3f sec)", \ + (long unsigned int) (C2) - (long unsigned int)(C1), \ + (double)((C2) - (C1)) / (1.0 * (double)CLOCKS_PER_SEC)) +#else +#define GREATEST_SET_TIME(UNUSED) +#define GREATEST_CLOCK_DIFF(UNUSED1, UNUSED2) +#endif + +#if GREATEST_USE_LONGJMP +#define GREATEST_SAVE_CONTEXT() \ + /* setjmp returns 0 (GREATEST_TEST_RES_PASS) on first call * \ + * so the test runs, then RES_FAIL from FAIL_WITH_LONGJMP. */ \ + ((enum greatest_test_res)(setjmp(greatest_info.jump_dest))) +#else +#define GREATEST_SAVE_CONTEXT() \ + /*a no-op, since setjmp/longjmp aren't being used */ \ + GREATEST_TEST_RES_PASS +#endif + +/* Run every suite / test function run within BODY in pseudo-random + * order, seeded by SEED. (The top 3 bits of the seed are ignored.) + * + * This should be called like: + * GREATEST_SHUFFLE_TESTS(seed, { + * GREATEST_RUN_TEST(some_test); + * GREATEST_RUN_TEST(some_other_test); + * GREATEST_RUN_TEST(yet_another_test); + * }); + * + * Note that the body of the second argument will be evaluated + * multiple times. */ +#define GREATEST_SHUFFLE_SUITES(SD, BODY) GREATEST_SHUFFLE(0, SD, BODY) +#define GREATEST_SHUFFLE_TESTS(SD, BODY) GREATEST_SHUFFLE(1, SD, BODY) +#define GREATEST_SHUFFLE(ID, SD, BODY) \ + do { \ + struct greatest_prng *prng = &greatest_info.prng[ID]; \ + greatest_prng_init_first_pass(ID); \ + do { \ + prng->count = 0; \ + if (prng->initialized) { greatest_prng_step(ID); } \ + BODY; \ + if (!prng->initialized) { \ + if (!greatest_prng_init_second_pass(ID, SD)) { break; } \ + } else if (prng->count_run == prng->count_ceil) { \ + break; \ + } \ + } while (!GREATEST_FAILURE_ABORT()); \ + prng->count_run = prng->random_order = prng->initialized = 0; \ + } while(0) + +/* Include several function definitions in the main test file. */ +#define GREATEST_MAIN_DEFS() \ + \ +/* Is FILTER a subset of NAME? */ \ +static int greatest_name_match(const char *name, const char *filter, \ + int res_if_none) { \ + size_t offset = 0; \ + size_t filter_len = filter ? strlen(filter) : 0; \ + if (filter_len == 0) { return res_if_none; } /* no filter */ \ + if (greatest_info.exact_name_match && strlen(name) != filter_len) { \ + return 0; /* ignore substring matches */ \ + } \ + while (name[offset] != '\0') { \ + if (name[offset] == filter[0]) { \ + if (0 == strncmp(&name[offset], filter, filter_len)) { \ + return 1; \ + } \ + } \ + offset++; \ + } \ + \ + return 0; \ +} \ + \ +static void greatest_buffer_test_name(const char *name) { \ + struct greatest_run_info *g = &greatest_info; \ + size_t len = strlen(name), size = sizeof(g->name_buf); \ + memset(g->name_buf, 0x00, size); \ + (void)strncat(g->name_buf, name, size - 1); \ + if (g->name_suffix && (len + 1 < size)) { \ + g->name_buf[len] = '_'; \ + strncat(&g->name_buf[len+1], g->name_suffix, size-(len+2)); \ + } \ +} \ + \ +/* Before running a test, check the name filtering and \ + * test shuffling state, if applicable, and then call setup hooks. */ \ +int greatest_test_pre(const char *name) { \ + struct greatest_run_info *g = &greatest_info; \ + int match; \ + greatest_buffer_test_name(name); \ + match = greatest_name_match(g->name_buf, g->test_filter, 1) && \ + !greatest_name_match(g->name_buf, g->test_exclude, 0); \ + if (GREATEST_LIST_ONLY()) { /* just listing test names */ \ + if (match) { \ + GREATEST_FPRINTF(GREATEST_STDOUT, " %s\n", g->name_buf); \ + } \ + goto clear; \ + } \ + if (match && (!GREATEST_FIRST_FAIL() || g->suite.failed == 0)) { \ + struct greatest_prng *p = &g->prng[1]; \ + if (p->random_order) { \ + p->count++; \ + if (!p->initialized || ((p->count - 1) != p->state)) { \ + goto clear; /* don't run this test yet */ \ + } \ + } \ + if (g->running_test) { \ + fprintf(stderr, "Error: Test run inside another test.\n"); \ + return 0; \ + } \ + GREATEST_SET_TIME(g->suite.pre_test); \ + if (g->setup) { g->setup(g->setup_udata); } \ + p->count_run++; \ + g->running_test = 1; \ + return 1; /* test should be run */ \ + } else { \ + goto clear; /* skipped */ \ + } \ +clear: \ + g->name_suffix = NULL; \ + return 0; \ +} \ + \ +static void greatest_do_pass(void) { \ + struct greatest_run_info *g = &greatest_info; \ + if (GREATEST_IS_VERBOSE()) { \ + GREATEST_FPRINTF(GREATEST_STDOUT, "PASS %s: %s", \ + g->name_buf, g->msg ? g->msg : ""); \ + } else { \ + GREATEST_FPRINTF(GREATEST_STDOUT, "."); \ + } \ + g->suite.passed++; \ +} \ + \ +static void greatest_do_fail(void) { \ + struct greatest_run_info *g = &greatest_info; \ + if (GREATEST_IS_VERBOSE()) { \ + GREATEST_FPRINTF(GREATEST_STDOUT, \ + "FAIL %s: %s (%s:%u)", g->name_buf, \ + g->msg ? g->msg : "", g->fail_file, g->fail_line); \ + } else { \ + GREATEST_FPRINTF(GREATEST_STDOUT, "F"); \ + g->col++; /* add linebreak if in line of '.'s */ \ + if (g->col != 0) { \ + GREATEST_FPRINTF(GREATEST_STDOUT, "\n"); \ + g->col = 0; \ + } \ + GREATEST_FPRINTF(GREATEST_STDOUT, "FAIL %s: %s (%s:%u)\n", \ + g->name_buf, g->msg ? g->msg : "", \ + g->fail_file, g->fail_line); \ + } \ + g->suite.failed++; \ +} \ + \ +static void greatest_do_skip(void) { \ + struct greatest_run_info *g = &greatest_info; \ + if (GREATEST_IS_VERBOSE()) { \ + GREATEST_FPRINTF(GREATEST_STDOUT, "SKIP %s: %s", \ + g->name_buf, g->msg ? g->msg : ""); \ + } else { \ + GREATEST_FPRINTF(GREATEST_STDOUT, "s"); \ + } \ + g->suite.skipped++; \ +} \ + \ +void greatest_test_post(int res) { \ + GREATEST_SET_TIME(greatest_info.suite.post_test); \ + if (greatest_info.teardown) { \ + void *udata = greatest_info.teardown_udata; \ + greatest_info.teardown(udata); \ + } \ + \ + greatest_info.running_test = 0; \ + if (res <= GREATEST_TEST_RES_FAIL) { \ + greatest_do_fail(); \ + } else if (res >= GREATEST_TEST_RES_SKIP) { \ + greatest_do_skip(); \ + } else if (res == GREATEST_TEST_RES_PASS) { \ + greatest_do_pass(); \ + } \ + greatest_info.name_suffix = NULL; \ + greatest_info.suite.tests_run++; \ + greatest_info.col++; \ + if (GREATEST_IS_VERBOSE()) { \ + GREATEST_CLOCK_DIFF(greatest_info.suite.pre_test, \ + greatest_info.suite.post_test); \ + GREATEST_FPRINTF(GREATEST_STDOUT, "\n"); \ + } else if (greatest_info.col % greatest_info.width == 0) { \ + GREATEST_FPRINTF(GREATEST_STDOUT, "\n"); \ + greatest_info.col = 0; \ + } \ + fflush(GREATEST_STDOUT); \ +} \ + \ +static void report_suite(void) { \ + if (greatest_info.suite.tests_run > 0) { \ + GREATEST_FPRINTF(GREATEST_STDOUT, \ + "\n%u test%s - %u passed, %u failed, %u skipped", \ + greatest_info.suite.tests_run, \ + greatest_info.suite.tests_run == 1 ? "" : "s", \ + greatest_info.suite.passed, \ + greatest_info.suite.failed, \ + greatest_info.suite.skipped); \ + GREATEST_CLOCK_DIFF(greatest_info.suite.pre_suite, \ + greatest_info.suite.post_suite); \ + GREATEST_FPRINTF(GREATEST_STDOUT, "\n"); \ + } \ +} \ + \ +static void update_counts_and_reset_suite(void) { \ + greatest_info.setup = NULL; \ + greatest_info.setup_udata = NULL; \ + greatest_info.teardown = NULL; \ + greatest_info.teardown_udata = NULL; \ + greatest_info.passed += greatest_info.suite.passed; \ + greatest_info.failed += greatest_info.suite.failed; \ + greatest_info.skipped += greatest_info.suite.skipped; \ + greatest_info.tests_run += greatest_info.suite.tests_run; \ + memset(&greatest_info.suite, 0, sizeof(greatest_info.suite)); \ + greatest_info.col = 0; \ +} \ + \ +static int greatest_suite_pre(const char *suite_name) { \ + struct greatest_prng *p = &greatest_info.prng[0]; \ + if (!greatest_name_match(suite_name, greatest_info.suite_filter, 1) \ + || (GREATEST_FAILURE_ABORT())) { return 0; } \ + if (p->random_order) { \ + p->count++; \ + if (!p->initialized || ((p->count - 1) != p->state)) { \ + return 0; /* don't run this suite yet */ \ + } \ + } \ + p->count_run++; \ + update_counts_and_reset_suite(); \ + GREATEST_FPRINTF(GREATEST_STDOUT, "\n* Suite %s:\n", suite_name); \ + GREATEST_SET_TIME(greatest_info.suite.pre_suite); \ + return 1; \ +} \ + \ +static void greatest_suite_post(void) { \ + GREATEST_SET_TIME(greatest_info.suite.post_suite); \ + report_suite(); \ +} \ + \ +static void greatest_run_suite(greatest_suite_cb *suite_cb, \ + const char *suite_name) { \ + if (greatest_suite_pre(suite_name)) { \ + suite_cb(); \ + greatest_suite_post(); \ + } \ +} \ + \ +int greatest_do_assert_equal_t(const void *expd, const void *got, \ + greatest_type_info *type_info, void *udata) { \ + int eq = 0; \ + if (type_info == NULL || type_info->equal == NULL) { return 0; } \ + eq = type_info->equal(expd, got, udata); \ + if (!eq) { \ + if (type_info->print != NULL) { \ + GREATEST_FPRINTF(GREATEST_STDOUT, "\nExpected: "); \ + (void)type_info->print(expd, udata); \ + GREATEST_FPRINTF(GREATEST_STDOUT, "\n Got: "); \ + (void)type_info->print(got, udata); \ + GREATEST_FPRINTF(GREATEST_STDOUT, "\n"); \ + } \ + } \ + return eq; \ +} \ + \ +static void greatest_usage(const char *name) { \ + GREATEST_FPRINTF(GREATEST_STDOUT, \ + "Usage: %s [-hlfavex] [-s SUITE] [-t TEST] [-x EXCLUDE]\n" \ + " -h, --help print this Help\n" \ + " -l List suites and tests, then exit (dry run)\n" \ + " -f Stop runner after first failure\n" \ + " -a Abort on first failure (implies -f)\n" \ + " -v Verbose output\n" \ + " -s SUITE only run suites containing substring SUITE\n" \ + " -t TEST only run tests containing substring TEST\n" \ + " -e only run exact name match for -s or -t\n" \ + " -x EXCLUDE exclude tests containing substring EXCLUDE\n", \ + name); \ +} \ + \ +static void greatest_parse_options(int argc, char **argv) { \ + int i = 0; \ + for (i = 1; i < argc; i++) { \ + if (argv[i][0] == '-') { \ + char f = argv[i][1]; \ + if ((f == 's' || f == 't' || f == 'x') && argc <= i + 1) { \ + greatest_usage(argv[0]); exit(EXIT_FAILURE); \ + } \ + switch (f) { \ + case 's': /* suite name filter */ \ + greatest_set_suite_filter(argv[i + 1]); i++; break; \ + case 't': /* test name filter */ \ + greatest_set_test_filter(argv[i + 1]); i++; break; \ + case 'x': /* test name exclusion */ \ + greatest_set_test_exclude(argv[i + 1]); i++; break; \ + case 'e': /* exact name match */ \ + greatest_set_exact_name_match(); break; \ + case 'f': /* first fail flag */ \ + greatest_stop_at_first_fail(); break; \ + case 'a': /* abort() on fail flag */ \ + greatest_abort_on_fail(); break; \ + case 'l': /* list only (dry run) */ \ + greatest_list_only(); break; \ + case 'v': /* first fail flag */ \ + greatest_info.verbosity++; break; \ + case 'h': /* help */ \ + greatest_usage(argv[0]); exit(EXIT_SUCCESS); \ + default: \ + case '-': \ + if (0 == strncmp("--help", argv[i], 6)) { \ + greatest_usage(argv[0]); exit(EXIT_SUCCESS); \ + } else if (0 == strcmp("--", argv[i])) { \ + return; /* ignore following arguments */ \ + } \ + GREATEST_FPRINTF(GREATEST_STDOUT, \ + "Unknown argument '%s'\n", argv[i]); \ + greatest_usage(argv[0]); \ + exit(EXIT_FAILURE); \ + } \ + } \ + } \ +} \ + \ +int greatest_all_passed(void) { return (greatest_info.failed == 0); } \ + \ +void greatest_set_test_filter(const char *filter) { \ + greatest_info.test_filter = filter; \ +} \ + \ +void greatest_set_test_exclude(const char *filter) { \ + greatest_info.test_exclude = filter; \ +} \ + \ +void greatest_set_suite_filter(const char *filter) { \ + greatest_info.suite_filter = filter; \ +} \ + \ +void greatest_set_exact_name_match(void) { \ + greatest_info.exact_name_match = 1; \ +} \ + \ +void greatest_stop_at_first_fail(void) { \ + greatest_set_flag(GREATEST_FLAG_FIRST_FAIL); \ +} \ + \ +void greatest_abort_on_fail(void) { \ + greatest_set_flag(GREATEST_FLAG_ABORT_ON_FAIL); \ +} \ + \ +void greatest_list_only(void) { \ + greatest_set_flag(GREATEST_FLAG_LIST_ONLY); \ +} \ + \ +void greatest_get_report(struct greatest_report_t *report) { \ + if (report) { \ + report->passed = greatest_info.passed; \ + report->failed = greatest_info.failed; \ + report->skipped = greatest_info.skipped; \ + report->assertions = greatest_info.assertions; \ + } \ +} \ + \ +unsigned int greatest_get_verbosity(void) { \ + return greatest_info.verbosity; \ +} \ + \ +void greatest_set_verbosity(unsigned int verbosity) { \ + greatest_info.verbosity = (unsigned char)verbosity; \ +} \ + \ +void greatest_set_flag(greatest_flag_t flag) { \ + greatest_info.flags = (unsigned char)(greatest_info.flags | flag); \ +} \ + \ +void greatest_set_test_suffix(const char *suffix) { \ + greatest_info.name_suffix = suffix; \ +} \ + \ +void GREATEST_SET_SETUP_CB(greatest_setup_cb *cb, void *udata) { \ + greatest_info.setup = cb; \ + greatest_info.setup_udata = udata; \ +} \ + \ +void GREATEST_SET_TEARDOWN_CB(greatest_teardown_cb *cb, void *udata) { \ + greatest_info.teardown = cb; \ + greatest_info.teardown_udata = udata; \ +} \ + \ +static int greatest_string_equal_cb(const void *expd, const void *got, \ + void *udata) { \ + size_t *size = (size_t *)udata; \ + return (size != NULL \ + ? (0 == strncmp((const char *)expd, (const char *)got, *size)) \ + : (0 == strcmp((const char *)expd, (const char *)got))); \ +} \ + \ +static int greatest_string_printf_cb(const void *t, void *udata) { \ + (void)udata; /* note: does not check \0 termination. */ \ + return GREATEST_FPRINTF(GREATEST_STDOUT, "%s", (const char *)t); \ +} \ + \ +greatest_type_info greatest_type_info_string = { \ + greatest_string_equal_cb, greatest_string_printf_cb, \ +}; \ + \ +static int greatest_memory_equal_cb(const void *expd, const void *got, \ + void *udata) { \ + greatest_memory_cmp_env *env = (greatest_memory_cmp_env *)udata; \ + return (0 == memcmp(expd, got, env->size)); \ +} \ + \ +/* Hexdump raw memory, with differences highlighted */ \ +static int greatest_memory_printf_cb(const void *t, void *udata) { \ + greatest_memory_cmp_env *env = (greatest_memory_cmp_env *)udata; \ + const unsigned char *buf = (const unsigned char *)t; \ + unsigned char diff_mark = ' '; \ + FILE *out = GREATEST_STDOUT; \ + size_t i, line_i, line_len = 0; \ + int len = 0; /* format hexdump with differences highlighted */ \ + for (i = 0; i < env->size; i+= line_len) { \ + diff_mark = ' '; \ + line_len = env->size - i; \ + if (line_len > 16) { line_len = 16; } \ + for (line_i = i; line_i < i + line_len; line_i++) { \ + if (env->exp[line_i] != env->got[line_i]) diff_mark = 'X'; \ + } \ + len += GREATEST_FPRINTF(out, "\n%04x %c ", \ + (unsigned int)i, diff_mark); \ + for (line_i = i; line_i < i + line_len; line_i++) { \ + int m = env->exp[line_i] == env->got[line_i]; /* match? */ \ + len += GREATEST_FPRINTF(out, "%02x%c", \ + buf[line_i], m ? ' ' : '<'); \ + } \ + for (line_i = 0; line_i < 16 - line_len; line_i++) { \ + len += GREATEST_FPRINTF(out, " "); \ + } \ + GREATEST_FPRINTF(out, " "); \ + for (line_i = i; line_i < i + line_len; line_i++) { \ + unsigned char c = buf[line_i]; \ + len += GREATEST_FPRINTF(out, "%c", isprint(c) ? c : '.'); \ + } \ + } \ + len += GREATEST_FPRINTF(out, "\n"); \ + return len; \ +} \ + \ +void greatest_prng_init_first_pass(int id) { \ + greatest_info.prng[id].random_order = 1; \ + greatest_info.prng[id].count_run = 0; \ +} \ + \ +int greatest_prng_init_second_pass(int id, unsigned long seed) { \ + struct greatest_prng *p = &greatest_info.prng[id]; \ + if (p->count == 0) { return 0; } \ + p->count_ceil = p->count; \ + for (p->m = 1; p->m < p->count; p->m <<= 1) {} \ + p->state = seed & 0x1fffffff; /* only use lower 29 bits */ \ + p->a = 4LU * p->state; /* to avoid overflow when */ \ + p->a = (p->a ? p->a : 4) | 1; /* multiplied by 4 */ \ + p->c = 2147483647; /* and so p->c ((2 ** 31) - 1) is */ \ + p->initialized = 1; /* always relatively prime to p->a. */ \ + fprintf(stderr, "init_second_pass: a %lu, c %lu, state %lu\n", \ + p->a, p->c, p->state); \ + return 1; \ +} \ + \ +/* Step the pseudorandom number generator until its state reaches \ + * another test ID between 0 and the test count. \ + * This use a linear congruential pseudorandom number generator, \ + * with the power-of-two ceiling of the test count as the modulus, the \ + * masked seed as the multiplier, and a prime as the increment. For \ + * each generated value < the test count, run the corresponding test. \ + * This will visit all IDs 0 <= X < mod once before repeating, \ + * with a starting position chosen based on the initial seed. \ + * For details, see: Knuth, The Art of Computer Programming \ + * Volume. 2, section 3.2.1. */ \ +void greatest_prng_step(int id) { \ + struct greatest_prng *p = &greatest_info.prng[id]; \ + do { \ + p->state = ((p->a * p->state) + p->c) & (p->m - 1); \ + } while (p->state >= p->count_ceil); \ +} \ + \ +void GREATEST_INIT(void) { \ + /* Suppress unused function warning if features aren't used */ \ + (void)greatest_run_suite; \ + (void)greatest_parse_options; \ + (void)greatest_prng_step; \ + (void)greatest_prng_init_first_pass; \ + (void)greatest_prng_init_second_pass; \ + (void)greatest_set_test_suffix; \ + \ + memset(&greatest_info, 0, sizeof(greatest_info)); \ + greatest_info.width = GREATEST_DEFAULT_WIDTH; \ + GREATEST_SET_TIME(greatest_info.begin); \ +} \ + \ +/* Report passes, failures, skipped tests, the number of \ + * assertions, and the overall run time. */ \ +void GREATEST_PRINT_REPORT(void) { \ + if (!GREATEST_LIST_ONLY()) { \ + update_counts_and_reset_suite(); \ + GREATEST_SET_TIME(greatest_info.end); \ + GREATEST_FPRINTF(GREATEST_STDOUT, \ + "\nTotal: %u test%s", \ + greatest_info.tests_run, \ + greatest_info.tests_run == 1 ? "" : "s"); \ + GREATEST_CLOCK_DIFF(greatest_info.begin, \ + greatest_info.end); \ + GREATEST_FPRINTF(GREATEST_STDOUT, ", %u assertion%s\n", \ + greatest_info.assertions, \ + greatest_info.assertions == 1 ? "" : "s"); \ + GREATEST_FPRINTF(GREATEST_STDOUT, \ + "Pass: %u, fail: %u, skip: %u.\n", \ + greatest_info.passed, \ + greatest_info.failed, greatest_info.skipped); \ + } \ +} \ + \ +greatest_type_info greatest_type_info_memory = { \ + greatest_memory_equal_cb, greatest_memory_printf_cb, \ +}; \ + \ +greatest_run_info greatest_info + +/* Handle command-line arguments, etc. */ +#define GREATEST_MAIN_BEGIN() \ + do { \ + GREATEST_INIT(); \ + greatest_parse_options(argc, argv); \ + } while (0) + +/* Report results, exit with exit status based on results. */ +#define GREATEST_MAIN_END() \ + do { \ + GREATEST_PRINT_REPORT(); \ + return (greatest_all_passed() ? EXIT_SUCCESS : EXIT_FAILURE); \ + } while (0) + +/* Make abbreviations without the GREATEST_ prefix for the + * most commonly used symbols. */ +#if GREATEST_USE_ABBREVS +#define TEST GREATEST_TEST +#define SUITE GREATEST_SUITE +#define SUITE_EXTERN GREATEST_SUITE_EXTERN +#define RUN_TEST GREATEST_RUN_TEST +#define RUN_TEST1 GREATEST_RUN_TEST1 +#define RUN_SUITE GREATEST_RUN_SUITE +#define IGNORE_TEST GREATEST_IGNORE_TEST +#define ASSERT GREATEST_ASSERT +#define ASSERTm GREATEST_ASSERTm +#define ASSERT_FALSE GREATEST_ASSERT_FALSE +#define ASSERT_EQ GREATEST_ASSERT_EQ +#define ASSERT_NEQ GREATEST_ASSERT_NEQ +#define ASSERT_GT GREATEST_ASSERT_GT +#define ASSERT_GTE GREATEST_ASSERT_GTE +#define ASSERT_LT GREATEST_ASSERT_LT +#define ASSERT_LTE GREATEST_ASSERT_LTE +#define ASSERT_EQ_FMT GREATEST_ASSERT_EQ_FMT +#define ASSERT_IN_RANGE GREATEST_ASSERT_IN_RANGE +#define ASSERT_EQUAL_T GREATEST_ASSERT_EQUAL_T +#define ASSERT_STR_EQ GREATEST_ASSERT_STR_EQ +#define ASSERT_STRN_EQ GREATEST_ASSERT_STRN_EQ +#define ASSERT_MEM_EQ GREATEST_ASSERT_MEM_EQ +#define ASSERT_ENUM_EQ GREATEST_ASSERT_ENUM_EQ +#define ASSERT_FALSEm GREATEST_ASSERT_FALSEm +#define ASSERT_EQm GREATEST_ASSERT_EQm +#define ASSERT_NEQm GREATEST_ASSERT_NEQm +#define ASSERT_GTm GREATEST_ASSERT_GTm +#define ASSERT_GTEm GREATEST_ASSERT_GTEm +#define ASSERT_LTm GREATEST_ASSERT_LTm +#define ASSERT_LTEm GREATEST_ASSERT_LTEm +#define ASSERT_EQ_FMTm GREATEST_ASSERT_EQ_FMTm +#define ASSERT_IN_RANGEm GREATEST_ASSERT_IN_RANGEm +#define ASSERT_EQUAL_Tm GREATEST_ASSERT_EQUAL_Tm +#define ASSERT_STR_EQm GREATEST_ASSERT_STR_EQm +#define ASSERT_STRN_EQm GREATEST_ASSERT_STRN_EQm +#define ASSERT_MEM_EQm GREATEST_ASSERT_MEM_EQm +#define ASSERT_ENUM_EQm GREATEST_ASSERT_ENUM_EQm +#define PASS GREATEST_PASS +#define FAIL GREATEST_FAIL +#define SKIP GREATEST_SKIP +#define PASSm GREATEST_PASSm +#define FAILm GREATEST_FAILm +#define SKIPm GREATEST_SKIPm +#define SET_SETUP GREATEST_SET_SETUP_CB +#define SET_TEARDOWN GREATEST_SET_TEARDOWN_CB +#define CHECK_CALL GREATEST_CHECK_CALL +#define SHUFFLE_TESTS GREATEST_SHUFFLE_TESTS +#define SHUFFLE_SUITES GREATEST_SHUFFLE_SUITES + +#ifdef GREATEST_VA_ARGS +#define RUN_TESTp GREATEST_RUN_TESTp +#endif + +#if GREATEST_USE_LONGJMP +#define ASSERT_OR_LONGJMP GREATEST_ASSERT_OR_LONGJMP +#define ASSERT_OR_LONGJMPm GREATEST_ASSERT_OR_LONGJMPm +#define FAIL_WITH_LONGJMP GREATEST_FAIL_WITH_LONGJMP +#define FAIL_WITH_LONGJMPm GREATEST_FAIL_WITH_LONGJMPm +#endif + +#endif /* USE_ABBREVS */ + +#if defined(__cplusplus) && !defined(GREATEST_NO_EXTERN_CPLUSPLUS) +} +#endif + +#endif diff --git a/test/input.c b/test/input.c new file mode 100644 index 0000000..230ea7e --- /dev/null +++ b/test/input.c @@ -0,0 +1,29 @@ +#include "greatest.h" +#include "../input.h" + +#define s(x) {x, sizeof(x) - 1} + +TEST one_pass(void) { + struct libscomm_input in; + struct libscomm_inbuf b = s("Arg 1\tArg \r\v\t!\n"); + struct libscomm_line l; + + libscomm_reset(&in); + ASSERT_EQ(libscomm_read(&in, &b, &l), LIBSCOMM_COMPLETE); + ASSERT_EQ(l.len, 3); + ASSERT_EQ(l.name, 0); + + ASSERT_STR_EQ(l.buf[0], "Arg 1"); + ASSERT_STR_EQ(l.buf[1], "Arg \r\v"); + ASSERT_STR_EQ(l.buf[2], "!"); + + PASS(); +} + +GREATEST_MAIN_DEFS(); + +int main(int argc, char *argv[]) { + GREATEST_MAIN_BEGIN(); + RUN_TEST(one_pass); + GREATEST_MAIN_END(); +}