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-rw-r--r--tests/tap/runtests.c1393
1 files changed, 1393 insertions, 0 deletions
diff --git a/tests/tap/runtests.c b/tests/tap/runtests.c
new file mode 100644
index 0000000..0464fbb
--- /dev/null
+++ b/tests/tap/runtests.c
@@ -0,0 +1,1393 @@
+/*
+ * Run a set of tests, reporting results.
+ *
+ * Usage:
+ *
+ * runtests [-b <build-dir>] [-s <source-dir>] <test-list>
+ * runtests -o [-b <build-dir>] [-s <source-dir>] <test>
+ *
+ * In the first case, expects a list of executables located in the given file,
+ * one line per executable. For each one, runs it as part of a test suite,
+ * reporting results. Test output should start with a line containing the
+ * number of tests (numbered from 1 to this number), optionally preceded by
+ * "1..", although that line may be given anywhere in the output. Each
+ * additional line should be in the following format:
+ *
+ * ok <number>
+ * not ok <number>
+ * ok <number> # skip
+ * not ok <number> # todo
+ *
+ * where <number> is the number of the test. An optional comment is permitted
+ * after the number if preceded by whitespace. ok indicates success, not ok
+ * indicates failure. "# skip" and "# todo" are a special cases of a comment,
+ * and must start with exactly that formatting. They indicate the test was
+ * skipped for some reason (maybe because it doesn't apply to this platform)
+ * or is testing something known to currently fail. The text following either
+ * "# skip" or "# todo" and whitespace is the reason.
+ *
+ * As a special case, the first line of the output may be in the form:
+ *
+ * 1..0 # skip some reason
+ *
+ * which indicates that this entire test case should be skipped and gives a
+ * reason.
+ *
+ * Any other lines are ignored, although for compliance with the TAP protocol
+ * all lines other than the ones in the above format should be sent to
+ * standard error rather than standard output and start with #.
+ *
+ * This is a subset of TAP as documented in Test::Harness::TAP or
+ * TAP::Parser::Grammar, which comes with Perl.
+ *
+ * If the -o option is given, instead run a single test and display all of its
+ * output. This is intended for use with failing tests so that the person
+ * running the test suite can get more details about what failed.
+ *
+ * If built with the C preprocessor symbols SOURCE and BUILD defined, C TAP
+ * Harness will export those values in the environment so that tests can find
+ * the source and build directory and will look for tests under both
+ * directories. These paths can also be set with the -b and -s command-line
+ * options, which will override anything set at build time.
+ *
+ * Any bug reports, bug fixes, and improvements are very much welcome and
+ * should be sent to the e-mail address below. This program is part of C TAP
+ * Harness <http://www.eyrie.org/~eagle/software/c-tap-harness/>.
+ *
+ * Copyright 2000, 2001, 2004, 2006, 2007, 2008, 2009, 2010, 2011
+ * Russ Allbery <rra@stanford.edu>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+*/
+
+/* Required for fdopen(), getopt(), and putenv(). */
+#if defined(__STRICT_ANSI__) || defined(PEDANTIC)
+# ifndef _XOPEN_SOURCE
+# define _XOPEN_SOURCE 500
+# endif
+#endif
+
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
+
+/* sys/time.h must be included before sys/resource.h on some platforms. */
+#include <sys/resource.h>
+
+/* AIX doesn't have WCOREDUMP. */
+#ifndef WCOREDUMP
+# define WCOREDUMP(status) ((unsigned)(status) & 0x80)
+#endif
+
+/*
+ * Used for iterating through arrays. Returns the number of elements in the
+ * array (useful for a < upper bound in a for loop).
+ */
+#define ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0]))
+
+/*
+ * The source and build versions of the tests directory. This is used to set
+ * the SOURCE and BUILD environment variables and find test programs, if set.
+ * Normally, this should be set as part of the build process to the test
+ * subdirectories of $(abs_top_srcdir) and $(abs_top_builddir) respectively.
+ */
+#ifndef SOURCE
+# define SOURCE NULL
+#endif
+#ifndef BUILD
+# define BUILD NULL
+#endif
+
+/* Test status codes. */
+enum test_status {
+ TEST_FAIL,
+ TEST_PASS,
+ TEST_SKIP,
+ TEST_INVALID
+};
+
+/* Indicates the state of our plan. */
+enum plan_status {
+ PLAN_INIT, /* Nothing seen yet. */
+ PLAN_FIRST, /* Plan seen before any tests. */
+ PLAN_PENDING, /* Test seen and no plan yet. */
+ PLAN_FINAL /* Plan seen after some tests. */
+};
+
+/* Error exit statuses for test processes. */
+#define CHILDERR_DUP 100 /* Couldn't redirect stderr or stdout. */
+#define CHILDERR_EXEC 101 /* Couldn't exec child process. */
+#define CHILDERR_STDERR 102 /* Couldn't open stderr file. */
+
+/* Structure to hold data for a set of tests. */
+struct testset {
+ char *file; /* The file name of the test. */
+ char *path; /* The path to the test program. */
+ enum plan_status plan; /* The status of our plan. */
+ unsigned long count; /* Expected count of tests. */
+ unsigned long current; /* The last seen test number. */
+ unsigned int length; /* The length of the last status message. */
+ unsigned long passed; /* Count of passing tests. */
+ unsigned long failed; /* Count of failing lists. */
+ unsigned long skipped; /* Count of skipped tests (passed). */
+ unsigned long allocated; /* The size of the results table. */
+ enum test_status *results; /* Table of results by test number. */
+ unsigned int aborted; /* Whether the set was aborted. */
+ int reported; /* Whether the results were reported. */
+ int status; /* The exit status of the test. */
+ unsigned int all_skipped; /* Whether all tests were skipped. */
+ char *reason; /* Why all tests were skipped. */
+};
+
+/* Structure to hold a linked list of test sets. */
+struct testlist {
+ struct testset *ts;
+ struct testlist *next;
+};
+
+/*
+ * Usage message. Should be used as a printf format with four arguments: the
+ * path to runtests, given three times, and the usage_description. This is
+ * split into variables to satisfy the pedantic ISO C90 limit on strings.
+ */
+static const char usage_message[] = "\
+Usage: %s [-b <build-dir>] [-s <source-dir>] <test> ...\n\
+ %s [-b <build-dir>] [-s <source-dir>] -l <test-list> -L <log-file>\n\
+ %s -o [-b <build-dir>] [-s <source-dir>] <test>\n\
+\n%s";
+static const char usage_extra[] = "\
+Options:\n\
+ -b <build-dir> Set the build directory to <build-dir>\n\
+ -l <list> Take the list of tests to run from <test-list>\n\
+ -o Run a single test rather than a list of tests\n\
+ -s <source-dir> Set the source directory to <source-dir>\n\
+ -L <log-file> Set log file for a list of tests\n\
+\n\
+runtests normally runs each test listed on the command line. With the -l\n\
+option, it instead runs every test listed in a file. With the -o option,\n\
+it instead runs a single test and shows its complete output.\n";
+
+/*
+ * Header used for test output. %s is replaced by the file name of the list
+ * of tests.
+ */
+static const char banner[] = "\n\
+Running all tests listed in %s. If any tests fail, run the failing\n\
+test program with runtests -o to see more details.\n\n";
+
+/* Header for reports of failed tests. */
+static const char header[] = "\n\
+Failed Set Fail/Total (%) Skip Stat Failing Tests\n\
+-------------------------- -------------- ---- ---- ------------------------";
+
+/* Include the file name and line number in malloc failures. */
+#define xcalloc(n, size) x_calloc((n), (size), __FILE__, __LINE__)
+#define xmalloc(size) x_malloc((size), __FILE__, __LINE__)
+#define xrealloc(p, size) x_realloc((p), (size), __FILE__, __LINE__)
+#define xstrdup(p) x_strdup((p), __FILE__, __LINE__)
+
+/*
+ * __attribute__ is available in gcc 2.5 and later, but only with gcc 2.7
+ * could you use the __format__ form of the attributes, which is what we use
+ * (to avoid confusion with other macros).
+ */
+#ifndef __attribute__
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
+# define __attribute__(spec) /* empty */
+# endif
+#endif
+
+/*
+ * We use __alloc_size__, but it was only available in fairly recent versions
+ * of GCC. Suppress warnings about the unknown attribute if GCC is too old.
+ * We know that we're GCC at this point, so we can use the GCC variadic macro
+ * extension, which will still work with versions of GCC too old to have C99
+ * variadic macro support.
+ */
+#if !defined(__attribute__) && !defined(__alloc_size__)
+# if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
+# define __alloc_size__(spec, args...) /* empty */
+# endif
+#endif
+
+/*
+ * LLVM and Clang pretend to be GCC but don't support all of the __attribute__
+ * settings that GCC does. For them, suppress warnings about unknown
+ * attributes on declarations. This unfortunately will affect the entire
+ * compilation context, but there's no push and pop available.
+ */
+#if !defined(__attribute__) && (defined(__llvm__) || defined(__clang__))
+# pragma GCC diagnostic ignored "-Wattributes"
+#endif
+
+/* Declare internal functions that benefit from compiler attributes. */
+static void sysdie(const char *, ...)
+ __attribute__((__nonnull__, __noreturn__, __format__(printf, 1, 2)));
+static void *x_calloc(size_t, size_t, const char *, int)
+ __attribute__((__alloc_size__(1, 2), __malloc__, __nonnull__));
+static void *x_malloc(size_t, const char *, int)
+ __attribute__((__alloc_size__(1), __malloc__, __nonnull__));
+static void *x_realloc(void *, size_t, const char *, int)
+ __attribute__((__alloc_size__(2), __malloc__, __nonnull__(3)));
+static char *x_strdup(const char *, const char *, int)
+ __attribute__((__malloc__, __nonnull__));
+
+/*
+ * Report a fatal error, including the results of strerror, and exit.
+ */
+static void
+sysdie(const char *format, ...)
+{
+ int oerrno;
+ va_list args;
+
+ oerrno = errno;
+ fflush(stdout);
+ fprintf(stderr, "runtests: ");
+ va_start(args, format);
+ vfprintf(stderr, format, args);
+ va_end(args);
+ fprintf(stderr, ": %s\n", strerror(oerrno));
+ exit(1);
+}
+
+/*
+ * Allocate zeroed memory, reporting a fatal error and exiting on failure.
+ */
+static void *
+x_calloc(size_t n, size_t size, const char *file, int line)
+{
+ void *p;
+
+ n = (n > 0) ? n : 1;
+ size = (size > 0) ? size : 1;
+ p = calloc(n, size);
+ if (p == NULL)
+ sysdie("failed to calloc %lu bytes at %s line %d",
+ (unsigned long) size, file, line);
+ return p;
+}
+
+/*
+ * Allocate memory, reporting a fatal error and exiting on failure.
+ */
+static void *
+x_malloc(size_t size, const char *file, int line)
+{
+ void *p;
+
+ p = malloc(size);
+ if (p == NULL)
+ sysdie("failed to malloc %lu bytes at %s line %d",
+ (unsigned long) size, file, line);
+ return p;
+}
+
+/*
+ * Reallocate memory, reporting a fatal error and exiting on failure.
+ */
+static void *
+x_realloc(void *p, size_t size, const char *file, int line)
+{
+ p = realloc(p, size);
+ if (p == NULL)
+ sysdie("failed to realloc %lu bytes at %s line %d",
+ (unsigned long) size, file, line);
+ return p;
+}
+
+/*
+ * Copy a string, reporting a fatal error and exiting on failure.
+ */
+static char *
+x_strdup(const char *s, const char *file, int line)
+{
+ char *p;
+ size_t len;
+
+ len = strlen(s) + 1;
+ p = malloc(len);
+ if (p == NULL)
+ sysdie("failed to strdup %lu bytes at %s line %d",
+ (unsigned long) len, file, line);
+ memcpy(p, s, len);
+ return p;
+}
+
+/*
+ * Given a struct timeval, return the number of seconds it represents as a
+ * double. Use difftime() to convert a time_t to a double.
+ */
+static double
+tv_seconds(const struct timeval *tv)
+{
+ return difftime(tv->tv_sec, 0) + tv->tv_usec * 1e-6;
+}
+
+/*
+ * Given two struct timevals, return the difference in seconds.
+ */
+static double
+tv_diff(const struct timeval *tv1, const struct timeval *tv0)
+{
+ return tv_seconds(tv1) - tv_seconds(tv0);
+}
+
+/*
+ * Given two struct timevals, return the sum in seconds as a double.
+ */
+static double
+tv_sum(const struct timeval *tv1, const struct timeval *tv2)
+{
+ return tv_seconds(tv1) + tv_seconds(tv2);
+}
+
+/*
+ * Given a pointer to a string, skip any leading whitespace and return a
+ * pointer to the first non-whitespace character.
+ */
+static const char *
+skip_whitespace(const char *p)
+{
+ while (isspace((unsigned char)(*p)))
+ p++;
+ return p;
+}
+
+/*
+ * Start a program, connecting its stdout to a pipe on our end and its stderr
+ * to /dev/null, and storing the file descriptor to read from in the two
+ * argument. Returns the PID of the new process. Errors are fatal.
+ */
+static pid_t
+test_start(const char *path, int *fd)
+{
+ int fds[2], errfd;
+ pid_t child;
+
+ if (pipe(fds) == -1) {
+ puts("ABORTED");
+ fflush(stdout);
+ sysdie("can't create pipe");
+ }
+ child = fork();
+ if (child == (pid_t) -1) {
+ puts("ABORTED");
+ fflush(stdout);
+ sysdie("can't fork");
+ } else if (child == 0) {
+ /* In child. Set up our stdout and stderr. */
+ errfd = open("/dev/null", O_WRONLY);
+ if (errfd < 0)
+ _exit(CHILDERR_STDERR);
+ if (dup2(errfd, 2) == -1)
+ _exit(CHILDERR_DUP);
+ close(fds[0]);
+ if (dup2(fds[1], 1) == -1)
+ _exit(CHILDERR_DUP);
+
+ /* Now, exec our process. */
+ if (execl(path, path, (char *) 0) == -1)
+ _exit(CHILDERR_EXEC);
+ } else {
+ /* In parent. Close the extra file descriptor. */
+ close(fds[1]);
+ }
+ *fd = fds[0];
+ return child;
+}
+
+/*
+ * Back up over the output saying what test we were executing.
+ */
+static void
+test_backspace(struct testset *ts)
+{
+ unsigned int i;
+
+ if (!isatty(STDOUT_FILENO))
+ return;
+ for (i = 0; i < ts->length; i++)
+ putchar('\b');
+ for (i = 0; i < ts->length; i++)
+ putchar(' ');
+ for (i = 0; i < ts->length; i++)
+ putchar('\b');
+ ts->length = 0;
+}
+
+/*
+ * Read the plan line of test output, which should contain the range of test
+ * numbers. We may initialize the testset structure here if we haven't yet
+ * seen a test. Return true if initialization succeeded and the test should
+ * continue, false otherwise.
+ */
+static int
+test_plan(const char *line, struct testset *ts)
+{
+ unsigned long i;
+ long n;
+
+ /*
+ * Accept a plan without the leading 1.. for compatibility with older
+ * versions of runtests. This will only be allowed if we've not yet seen
+ * a test result.
+ */
+ line = skip_whitespace(line);
+ if (strncmp(line, "1..", 3) == 0)
+ line += 3;
+
+ /*
+ * Get the count, check it for validity, and initialize the struct. If we
+ * have something of the form "1..0 # skip foo", the whole file was
+ * skipped; record that. If we do skip the whole file, zero out all of
+ * our statistics, since they're no longer relevant. strtol is called
+ * with a second argument to advance the line pointer past the count to
+ * make it simpler to detect the # skip case.
+ */
+ n = strtol(line, (char **) &line, 10);
+ if (n == 0) {
+ line = skip_whitespace(line);
+ if (*line == '#') {
+ line = skip_whitespace(line + 1);
+ if (strncasecmp(line, "skip", 4) == 0) {
+ line = skip_whitespace(line + 4);
+ if (*line != '\0') {
+ ts->reason = xstrdup(line);
+ ts->reason[strlen(ts->reason) - 1] = '\0';
+ }
+ ts->all_skipped = 1;
+ ts->aborted = 1;
+ ts->count = 0;
+ ts->passed = 0;
+ ts->skipped = 0;
+ ts->failed = 0;
+ return 0;
+ }
+ }
+ }
+ if (n <= 0) {
+ puts("ABORTED (invalid test count)");
+ ts->aborted = 1;
+ ts->reported = 1;
+ return 0;
+ }
+ if (ts->plan == PLAN_INIT && ts->allocated == 0) {
+ ts->count = n;
+ ts->allocated = n;
+ ts->plan = PLAN_FIRST;
+ ts->results = xmalloc(ts->count * sizeof(enum test_status));
+ for (i = 0; i < ts->count; i++)
+ ts->results[i] = TEST_INVALID;
+ } else if (ts->plan == PLAN_PENDING) {
+ if ((unsigned long) n < ts->count) {
+ test_backspace(ts);
+ printf("ABORTED (invalid test number %lu)\n", ts->count);
+ ts->aborted = 1;
+ ts->reported = 1;
+ return 0;
+ }
+ ts->count = n;
+ if ((unsigned long) n > ts->allocated) {
+ ts->results = xrealloc(ts->results, n * sizeof(enum test_status));
+ for (i = ts->allocated; i < ts->count; i++)
+ ts->results[i] = TEST_INVALID;
+ ts->allocated = n;
+ }
+ ts->plan = PLAN_FINAL;
+ }
+ return 1;
+}
+
+/*
+ * Given a single line of output from a test, parse it and return the success
+ * status of that test. Anything printed to stdout not matching the form
+ * /^(not )?ok \d+/ is ignored. Sets ts->current to the test number that just
+ * reported status.
+ */
+static void
+test_checkline(const char *line, struct testset *ts)
+{
+ enum test_status status = TEST_PASS;
+ const char *bail;
+ char *end;
+ long number;
+ unsigned long i, current;
+ int outlen;
+
+ /* Before anything, check for a test abort. */
+ bail = strstr(line, "Bail out!");
+ if (bail != NULL) {
+ bail = skip_whitespace(bail + strlen("Bail out!"));
+ if (*bail != '\0') {
+ size_t length;
+
+ length = strlen(bail);
+ if (bail[length - 1] == '\n')
+ length--;
+ test_backspace(ts);
+ printf("ABORTED (%.*s)\n", (int) length, bail);
+ ts->reported = 1;
+ }
+ ts->aborted = 1;
+ return;
+ }
+
+ /*
+ * If the given line isn't newline-terminated, it was too big for an
+ * fgets(), which means ignore it.
+ */
+ if (line[strlen(line) - 1] != '\n')
+ return;
+
+ /* If the line begins with a hash mark, ignore it. */
+ if (line[0] == '#')
+ return;
+
+ /* If we haven't yet seen a plan, look for one. */
+ if (ts->plan == PLAN_INIT && isdigit((unsigned char)(*line))) {
+ if (!test_plan(line, ts))
+ return;
+ } else if (strncmp(line, "1..", 3) == 0) {
+ if (ts->plan == PLAN_PENDING) {
+ if (!test_plan(line, ts))
+ return;
+ } else {
+ test_backspace(ts);
+ puts("ABORTED (multiple plans)");
+ ts->aborted = 1;
+ ts->reported = 1;
+ return;
+ }
+ }
+
+ /* Parse the line, ignoring something we can't parse. */
+ if (strncmp(line, "not ", 4) == 0) {
+ status = TEST_FAIL;
+ line += 4;
+ }
+ if (strncmp(line, "ok", 2) != 0)
+ return;
+ line = skip_whitespace(line + 2);
+ errno = 0;
+ number = strtol(line, &end, 10);
+ if (errno != 0 || end == line)
+ number = ts->current + 1;
+ current = number;
+ if (number <= 0 || (current > ts->count && ts->plan == PLAN_FIRST)) {
+ test_backspace(ts);
+ printf("ABORTED (invalid test number %lu)\n", current);
+ ts->aborted = 1;
+ ts->reported = 1;
+ return;
+ }
+
+ /* We have a valid test result. Tweak the results array if needed. */
+ if (ts->plan == PLAN_INIT || ts->plan == PLAN_PENDING) {
+ ts->plan = PLAN_PENDING;
+ if (current > ts->count)
+ ts->count = current;
+ if (current > ts->allocated) {
+ unsigned long n;
+
+ n = (ts->allocated == 0) ? 32 : ts->allocated * 2;
+ if (n < current)
+ n = current;
+ ts->results = xrealloc(ts->results, n * sizeof(enum test_status));
+ for (i = ts->allocated; i < n; i++)
+ ts->results[i] = TEST_INVALID;
+ ts->allocated = n;
+ }
+ }
+
+ /*
+ * Handle directives. We should probably do something more interesting
+ * with unexpected passes of todo tests.
+ */
+ while (isdigit((unsigned char)(*line)))
+ line++;
+ line = skip_whitespace(line);
+ if (*line == '#') {
+ line = skip_whitespace(line + 1);
+ if (strncasecmp(line, "skip", 4) == 0)
+ status = TEST_SKIP;
+ if (strncasecmp(line, "todo", 4) == 0)
+ status = (status == TEST_FAIL) ? TEST_SKIP : TEST_FAIL;
+ }
+
+ /* Make sure that the test number is in range and not a duplicate. */
+ if (ts->results[current - 1] != TEST_INVALID) {
+ test_backspace(ts);
+ printf("ABORTED (duplicate test number %lu)\n", current);
+ ts->aborted = 1;
+ ts->reported = 1;
+ return;
+ }
+
+ /* Good results. Increment our various counters. */
+ switch (status) {
+ case TEST_PASS: ts->passed++; break;
+ case TEST_FAIL: ts->failed++; break;
+ case TEST_SKIP: ts->skipped++; break;
+ case TEST_INVALID: break;
+ }
+ ts->current = current;
+ ts->results[current - 1] = status;
+ if (isatty(STDOUT_FILENO)) {
+ test_backspace(ts);
+ if (ts->plan == PLAN_PENDING)
+ outlen = printf("%lu/?", current);
+ else
+ outlen = printf("%lu/%lu", current, ts->count);
+ ts->length = (outlen >= 0) ? outlen : 0;
+ fflush(stdout);
+ }
+}
+
+/*
+ * Print out a range of test numbers, returning the number of characters it
+ * took up. Takes the first number, the last number, the number of characters
+ * already printed on the line, and the limit of number of characters the line
+ * can hold. Add a comma and a space before the range if chars indicates that
+ * something has already been printed on the line, and print ... instead if
+ * chars plus the space needed would go over the limit (use a limit of 0 to
+ * disable this).
+ */
+static unsigned int
+test_print_range(unsigned long first, unsigned long last, unsigned int chars,
+ unsigned int limit)
+{
+ unsigned int needed = 0;
+ unsigned long n;
+
+ for (n = first; n > 0; n /= 10)
+ needed++;
+ if (last > first) {
+ for (n = last; n > 0; n /= 10)
+ needed++;
+ needed++;
+ }
+ if (chars > 0)
+ needed += 2;
+ if (limit > 0 && chars + needed > limit) {
+ needed = 0;
+ if (chars <= limit) {
+ if (chars > 0) {
+ printf(", ");
+ needed += 2;
+ }
+ printf("...");
+ needed += 3;
+ }
+ } else {
+ if (chars > 0)
+ printf(", ");
+ if (last > first)
+ printf("%lu-", first);
+ printf("%lu", last);
+ }
+ return needed;
+}
+
+/*
+ * Summarize a single test set. The second argument is 0 if the set exited
+ * cleanly, a positive integer representing the exit status if it exited
+ * with a non-zero status, and a negative integer representing the signal
+ * that terminated it if it was killed by a signal.
+ */
+static void
+test_summarize(struct testset *ts, int status)
+{
+ unsigned long i;
+ unsigned long missing = 0;
+ unsigned long failed = 0;
+ unsigned long first = 0;
+ unsigned long last = 0;
+
+ if (ts->aborted) {
+ fputs("ABORTED", stdout);
+ if (ts->count > 0)
+ printf(" (passed %lu/%lu)", ts->passed, ts->count - ts->skipped);
+ } else {
+ for (i = 0; i < ts->count; i++) {
+ if (ts->results[i] == TEST_INVALID) {
+ if (missing == 0)
+ fputs("MISSED ", stdout);
+ if (first && i == last)
+ last = i + 1;
+ else {
+ if (first)
+ test_print_range(first, last, missing - 1, 0);
+ missing++;
+ first = i + 1;
+ last = i + 1;
+ }
+ }
+ }
+ if (first)
+ test_print_range(first, last, missing - 1, 0);
+ first = 0;
+ last = 0;
+ for (i = 0; i < ts->count; i++) {
+ if (ts->results[i] == TEST_FAIL) {
+ if (missing && !failed)
+ fputs("; ", stdout);
+ if (failed == 0)
+ fputs("FAILED ", stdout);
+ if (first && i == last)
+ last = i + 1;
+ else {
+ if (first)
+ test_print_range(first, last, failed - 1, 0);
+ failed++;
+ first = i + 1;
+ last = i + 1;
+ }
+ }
+ }
+ if (first)
+ test_print_range(first, last, failed - 1, 0);
+ if (!missing && !failed) {
+ fputs(!status ? "ok" : "dubious", stdout);
+ if (ts->skipped > 0) {
+ if (ts->skipped == 1)
+ printf(" (skipped %lu test)", ts->skipped);
+ else
+ printf(" (skipped %lu tests)", ts->skipped);
+ }
+ }
+ }
+ if (status > 0)
+ printf(" (exit status %d)", status);
+ else if (status < 0)
+ printf(" (killed by signal %d%s)", -status,
+ WCOREDUMP(ts->status) ? ", core dumped" : "");
+ putchar('\n');
+}
+
+/*
+ * Given a test set, analyze the results, classify the exit status, handle a
+ * few special error messages, and then pass it along to test_summarize() for
+ * the regular output. Returns true if the test set ran successfully and all
+ * tests passed or were skipped, false otherwise.
+ */
+static int
+test_analyze(struct testset *ts)
+{
+ if (ts->reported)
+ return 0;
+ if (ts->all_skipped) {
+ if (ts->reason == NULL)
+ puts("skipped");
+ else
+ printf("skipped (%s)\n", ts->reason);
+ return 1;
+ } else if (WIFEXITED(ts->status) && WEXITSTATUS(ts->status) != 0) {
+ switch (WEXITSTATUS(ts->status)) {
+ case CHILDERR_DUP:
+ if (!ts->reported)
+ puts("ABORTED (can't dup file descriptors)");
+ break;
+ case CHILDERR_EXEC:
+ if (!ts->reported)
+ puts("ABORTED (execution failed -- not found?)");
+ break;
+ case CHILDERR_STDERR:
+ if (!ts->reported)
+ puts("ABORTED (can't open /dev/null)");
+ break;
+ default:
+ test_summarize(ts, WEXITSTATUS(ts->status));
+ break;
+ }
+ return 0;
+ } else if (WIFSIGNALED(ts->status)) {
+ test_summarize(ts, -WTERMSIG(ts->status));
+ return 0;
+ } else if (ts->plan != PLAN_FIRST && ts->plan != PLAN_FINAL) {
+ puts("ABORTED (no valid test plan)");
+ ts->aborted = 1;
+ return 0;
+ } else {
+ test_summarize(ts, 0);
+ return (ts->failed == 0);
+ }
+}
+
+static void
+cond_fputs(const char *buffer, FILE *stream)
+{
+ if (!stream) {
+ return;
+ }
+
+ fputs(buffer, stream);
+}
+
+/*
+ * Runs a single test set, accumulating and then reporting the results.
+ * Returns true if the test set was successfully run and all tests passed,
+ * false otherwise.
+ */
+static int
+test_run(struct testset *ts, FILE *logfile)
+{
+ pid_t testpid, child;
+ int outfd, status;
+ unsigned long i;
+ FILE *output;
+ char buffer[BUFSIZ];
+
+ /* Run the test program. */
+ testpid = test_start(ts->path, &outfd);
+ output = fdopen(outfd, "r");
+ if (!output) {
+ puts("ABORTED");
+ fflush(stdout);
+ sysdie("fdopen failed");
+ }
+
+ /* Pass each line of output to test_checkline(). */
+ while (!ts->aborted && fgets(buffer, sizeof(buffer), output)) {
+ cond_fputs(buffer, logfile);
+ test_checkline(buffer, ts);
+ }
+ if (ferror(output) || ts->plan == PLAN_INIT)
+ ts->aborted = 1;
+ test_backspace(ts);
+
+ /*
+ * Consume the rest of the test output, close the output descriptor,
+ * retrieve the exit status, and pass that information to test_analyze()
+ * for eventual output.
+ */
+ while (fgets(buffer, sizeof(buffer), output))
+ ;
+ fclose(output);
+ child = waitpid(testpid, &ts->status, 0);
+ if (child == (pid_t) -1) {
+ if (!ts->reported) {
+ puts("ABORTED");
+ fflush(stdout);
+ }
+ sysdie("waitpid for %u failed", (unsigned int) testpid);
+ }
+ if (ts->all_skipped)
+ ts->aborted = 0;
+ if (WEXITSTATUS(ts->status) > 0)
+ ts->failed++;
+ status = test_analyze(ts);
+
+ /* Convert missing tests to failed tests. */
+ for (i = 0; i < ts->count; i++) {
+ if (ts->results[i] == TEST_INVALID) {
+ ts->failed++;
+ ts->results[i] = TEST_FAIL;
+ status = 0;
+ }
+ }
+ return status;
+}
+
+/* Summarize a list of test failures. */
+static void
+test_fail_summary(const struct testlist *fails)
+{
+ struct testset *ts;
+ unsigned int chars;
+ unsigned long i, first, last, total;
+
+ puts(header);
+
+ /* Failed Set Fail/Total (%) Skip Stat Failing (25)
+ -------------------------- -------------- ---- ---- -------------- */
+ for (; fails; fails = fails->next) {
+ ts = fails->ts;
+ total = ts->count - ts->skipped;
+ printf("%-26.26s %4lu/%-4lu %3.0f%% %4lu ", ts->file, ts->failed,
+ total, total ? (ts->failed * 100.0) / total : 0,
+ ts->skipped);
+ if (WIFEXITED(ts->status))
+ printf("%4d ", WEXITSTATUS(ts->status));
+ else
+ printf(" -- ");
+ if (ts->aborted) {
+ puts("aborted");
+ continue;
+ }
+ chars = 0;
+ first = 0;
+ last = 0;
+ for (i = 0; i < ts->count; i++) {
+ if (ts->results[i] == TEST_FAIL) {
+ if (first != 0 && i == last)
+ last = i + 1;
+ else {
+ if (first != 0)
+ chars += test_print_range(first, last, chars, 19);
+ first = i + 1;
+ last = i + 1;
+ }
+ }
+ }
+ if (first != 0)
+ test_print_range(first, last, chars, 19);
+ putchar('\n');
+ }
+}
+
+/*
+ * Check whether a given file path is a valid test. Currently, this checks
+ * whether it is executable and is a regular file. Returns true or false.
+ */
+static int
+is_valid_test(const char *path)
+{
+ struct stat st;
+
+ if (access(path, X_OK) < 0)
+ return 0;
+ if (stat(path, &st) < 0)
+ return 0;
+ if (!S_ISREG(st.st_mode))
+ return 0;
+ return 1;
+}
+
+/*
+ * Given the name of a test, a pointer to the testset struct, and the source
+ * and build directories, find the test. We try first relative to the current
+ * directory, then in the build directory (if not NULL), then in the source
+ * directory. In each of those directories, we first try a "-t" extension and
+ * then a ".t" extension. When we find an executable program, we return the
+ * path to that program. If none of those paths are executable, just fill in
+ * the name of the test as is.
+ *
+ * The caller is responsible for freeing the path member of the testset
+ * struct.
+ */
+static char *
+find_test(const char *name, const char *source, const char *build)
+{
+ char *path;
+ const char *bases[3], *suffix, *base;
+ unsigned int i, j;
+ const char *suffixes[3] = { "-t", ".t", "" };
+
+ /* Possible base directories. */
+ bases[0] = ".";
+ bases[1] = build;
+ bases[2] = source;
+
+ /* Try each suffix with each base. */
+ for (i = 0; i < ARRAY_SIZE(suffixes); i++) {
+ suffix = suffixes[i];
+ for (j = 0; j < ARRAY_SIZE(bases); j++) {
+ unsigned int path_len;
+
+ base = bases[j];
+ if (base == NULL)
+ continue;
+ path_len = strlen(base) + strlen(name) + strlen(suffix) + 2;
+ path = xmalloc(path_len);
+ snprintf(path, path_len, "%s/%s%s", base, name, suffix);
+ if (is_valid_test(path))
+ return path;
+ free(path);
+ path = NULL;
+ }
+ }
+ if (path == NULL)
+ path = xstrdup(name);
+ return path;
+}
+
+/*
+ * Read a list of tests from a file, returning the list of tests as a struct
+ * testlist. Reports an error to standard error and exits if the list of
+ * tests cannot be read.
+ */
+static struct testlist *
+read_test_list(const char *filename)
+{
+ FILE *file;
+ unsigned int line;
+ size_t length;
+ char buffer[BUFSIZ];
+ struct testlist *listhead, *current;
+
+ /* Create the initial container list that will hold our results. */
+ listhead = xmalloc(sizeof(struct testlist));
+ listhead->ts = NULL;
+ listhead->next = NULL;
+ current = NULL;
+
+ /*
+ * Open our file of tests to run and read it line by line, creating a new
+ * struct testlist and struct testset for each line.
+ */
+ file = fopen(filename, "r");
+ if (file == NULL)
+ sysdie("can't open %s", filename);
+ line = 0;
+ while (fgets(buffer, sizeof(buffer), file)) {
+ line++;
+ length = strlen(buffer) - 1;
+ if (buffer[length] != '\n') {
+ fprintf(stderr, "%s:%u: line too long\n", filename, line);
+ exit(1);
+ }
+ buffer[length] = '\0';
+ if (current == NULL)
+ current = listhead;
+ else {
+ current->next = xmalloc(sizeof(struct testlist));
+ current = current->next;
+ current->next = NULL;
+ }
+ current->ts = xcalloc(1, sizeof(struct testset));
+ current->ts->plan = PLAN_INIT;
+ current->ts->file = xstrdup(buffer);
+ current->ts->reason = NULL;
+ }
+ fclose(file);
+
+ /* Return the results. */
+ return listhead;
+}
+
+/*
+ * Build a list of tests from command line arguments. Takes the argv and argc
+ * representing the command line arguments and returns a newly allocated test
+ * list. The caller is responsible for freeing.
+ */
+static struct testlist *
+build_test_list(char *argv[], int argc)
+{
+ int i;
+ struct testlist *listhead, *current;
+
+ /* Create the initial container list that will hold our results. */
+ listhead = xmalloc(sizeof(struct testlist));
+ listhead->ts = NULL;
+ listhead->next = NULL;
+ current = NULL;
+
+ /* Walk the list of arguments and create test sets for them. */
+ for (i = 0; i < argc; i++) {
+ if (current == NULL)
+ current = listhead;
+ else {
+ current->next = xmalloc(sizeof(struct testlist));
+ current = current->next;
+ current->next = NULL;
+ }
+ current->ts = xcalloc(1, sizeof(struct testset));
+ current->ts->plan = PLAN_INIT;
+ current->ts->file = xstrdup(argv[i]);
+ current->ts->reason = NULL;
+ }
+
+ /* Return the results. */
+ return listhead;
+}
+
+/* Free a struct testset. */
+static void
+free_testset(struct testset *ts)
+{
+ free(ts->file);
+ free(ts->path);
+ free(ts->results);
+ if (ts->reason != NULL)
+ free(ts->reason);
+ free(ts);
+}
+
+/*
+ * Run a batch of tests. Takes two additional parameters: the root of the
+ * source directory and the root of the build directory. Test programs will
+ * be first searched for in the current directory, then the build directory,
+ * then the source directory. Returns true iff all tests passed, and always
+ * frees the test list that's passed in.
+ */
+static int
+test_batch(struct testlist *tests, const char *source, const char *build,
+ const char *logfile_name)
+{
+ size_t length;
+ unsigned int i;
+ unsigned int longest = 0;
+ unsigned int count = 0;
+ struct testset *ts;
+ struct timeval start, end;
+ struct rusage stats;
+ struct testlist *failhead = NULL;
+ struct testlist *failtail = NULL;
+ struct testlist *current, *next;
+ int succeeded;
+ FILE *logfile = NULL;
+ unsigned long total = 0;
+ unsigned long passed = 0;
+ unsigned long skipped = 0;
+ unsigned long failed = 0;
+ unsigned long aborted = 0;
+
+ /* Walk the list of tests to find the longest name. */
+ for (current = tests; current != NULL; current = current->next) {
+ length = strlen(current->ts->file);
+ if (length > longest)
+ longest = length;
+ }
+
+ /*
+ * Add two to longest and round up to the nearest tab stop. This is how
+ * wide the column for printing the current test name will be.
+ */
+ longest += 2;
+ if (longest % 8)
+ longest += 8 - (longest % 8);
+
+ /* Start the wall clock timer. */
+ gettimeofday(&start, NULL);
+
+ /* Open the log (soft error). */
+ if (logfile_name != NULL) {
+ logfile = fopen(logfile_name, "w+");
+ if (!logfile) {
+ fprintf(stderr, "Could not open the log file.\n");
+ }
+ }
+
+ /* Now, plow through our tests again, running each one. */
+ for (current = tests; current != NULL; current = current->next) {
+ ts = current->ts;
+
+ /* Print out the name of the test file. */
+ fputs(ts->file, stdout);
+ for (i = strlen(ts->file); i < longest; i++)
+ putchar('.');
+ if (isatty(STDOUT_FILENO))
+ fflush(stdout);
+
+ /* Run the test. */
+ ts->path = find_test(ts->file, source, build);
+ succeeded = test_run(ts, logfile);
+ fflush(stdout);
+
+ /* Record cumulative statistics. */
+ aborted += ts->aborted;
+ total += ts->count + ts->all_skipped;
+ passed += ts->passed;
+ skipped += ts->skipped + ts->all_skipped;
+ failed += ts->failed;
+ count++;
+
+ /* If the test fails, we shuffle it over to the fail list. */
+ if (!succeeded) {
+ if (failhead == NULL) {
+ failhead = xmalloc(sizeof(struct testset));
+ failtail = failhead;
+ } else {
+ failtail->next = xmalloc(sizeof(struct testset));
+ failtail = failtail->next;
+ }
+ failtail->ts = ts;
+ failtail->next = NULL;
+ }
+ }
+ total -= skipped;
+
+ /* Close the log. */
+ if (logfile) {
+ fclose(logfile);
+ }
+
+ /* Stop the timer and get our child resource statistics. */
+ gettimeofday(&end, NULL);
+ getrusage(RUSAGE_CHILDREN, &stats);
+
+ /* Summarize the failures and free the failure list. */
+ if (failhead != NULL) {
+ test_fail_summary(failhead);
+ while (failhead != NULL) {
+ next = failhead->next;
+ free(failhead);
+ failhead = next;
+ }
+ }
+
+ /* Free the memory used by the test lists. */
+ while (tests != NULL) {
+ next = tests->next;
+ free_testset(tests->ts);
+ free(tests);
+ tests = next;
+ }
+
+ /* Print out the final test summary. */
+ putchar('\n');
+ if (aborted != 0) {
+ if (aborted == 1)
+ printf("Aborted %lu test set", aborted);
+ else
+ printf("Aborted %lu test sets", aborted);
+ printf(", passed %lu/%lu tests", passed, total);
+ }
+ else if (failed == 0)
+ fputs("All tests successful", stdout);
+ else
+ printf("Failed %lu/%lu tests, %.2f%% okay", failed, total,
+ (total - failed) * 100.0 / total);
+ if (skipped != 0) {
+ if (skipped == 1)
+ printf(", %lu test skipped", skipped);
+ else
+ printf(", %lu tests skipped", skipped);
+ }
+ puts(".");
+ printf("Files=%u, Tests=%lu", count, total);
+ printf(", %.2f seconds", tv_diff(&end, &start));
+ printf(" (%.2f usr + %.2f sys = %.2f CPU)\n",
+ tv_seconds(&stats.ru_utime), tv_seconds(&stats.ru_stime),
+ tv_sum(&stats.ru_utime, &stats.ru_stime));
+ return (failed == 0 && aborted == 0);
+}
+
+/*
+ * Run a single test case. This involves just running the test program after
+ * having done the environment setup and finding the test program.
+ */
+static void
+test_single(const char *program, const char *source, const char *build)
+{
+ char *path;
+
+ path = find_test(program, source, build);
+ if (execl(path, path, (char *) 0) == -1)
+ sysdie("cannot exec %s", path);
+}
+
+/*
+ * Main routine. Set the SOURCE and BUILD environment variables and then,
+ * given a file listing tests, run each test listed.
+ */
+int
+main(int argc, char *argv[])
+{
+ int option;
+ int status = 0;
+ int single = 0;
+ char *source_env = NULL;
+ char *build_env = NULL;
+ const char *shortlist;
+ const char *list = NULL;
+ const char *source = SOURCE;
+ const char *build = BUILD;
+ const char *logfile = NULL;
+ struct testlist *tests;
+
+ while ((option = getopt(argc, argv, "b:hl:os:L:")) != EOF) {
+ switch (option) {
+ case 'b':
+ build = optarg;
+ break;
+ case 'h':
+ printf(usage_message, argv[0], argv[0], argv[0], usage_extra);
+ exit(0);
+ break;
+ case 'l':
+ list = optarg;
+ break;
+ case 'o':
+ single = 1;
+ break;
+ case 's':
+ source = optarg;
+ break;
+ case 'L':
+ logfile = optarg;
+ break;
+ default:
+ exit(1);
+ }
+ }
+ argv += optind;
+ argc -= optind;
+ if ((list == NULL && argc < 1) || (list != NULL && argc > 0)) {
+ fprintf(stderr, usage_message, argv[0], argv[0], argv[0], usage_extra);
+ exit(1);
+ }
+
+ /* Set SOURCE and BUILD environment variables. */
+ if (source != NULL) {
+ unsigned int len = strlen("SOURCE=") + strlen(source) + 1;
+ source_env = xmalloc(len);
+ snprintf(source_env, len, "SOURCE=%s", source);
+ if (putenv(source_env) != 0)
+ sysdie("cannot set SOURCE in the environment");
+ }
+ if (build != NULL) {
+ unsigned int len = strlen("BUILD=") + strlen(build) + 1;
+ build_env = xmalloc(len);
+ snprintf(build_env, len, "BUILD=%s", build);
+ if (putenv(build_env) != 0)
+ sysdie("cannot set BUILD in the environment");
+ }
+
+ /* Run the tests as instructed. */
+ if (single)
+ test_single(argv[0], source, build);
+ else if (list != NULL) {
+ shortlist = strrchr(list, '/');
+ if (shortlist == NULL)
+ shortlist = list;
+ else
+ shortlist++;
+ printf(banner, shortlist);
+ tests = read_test_list(list);
+ status = test_batch(tests, source, build, logfile) ? 0 : 1;
+ } else {
+ tests = build_test_list(argv, argc);
+ status = test_batch(tests, source, build, logfile) ? 0 : 1;
+ }
+
+ /* For valgrind cleanliness, free all our memory. */
+ if (source_env != NULL) {
+ putenv((char *) "SOURCE=");
+ free(source_env);
+ }
+ if (build_env != NULL) {
+ putenv((char *) "BUILD=");
+ free(build_env);
+ }
+ exit(status);
+}