[PATCH v3 09/10] random-dump.c: new test-binary to generate dump files
Jani Nikula
jani at nikula.org
Sun Jan 15 00:05:15 PST 2012
On Jan 15, 2012 3:41 AM, "David Bremner" <david at tethera.net> wrote:
>
> From: David Bremner <bremner at debian.org>
>
> This binary creates a "torture test" dump file for the new dump
> format.
> ---
> test/Makefile.local | 4 ++
> test/basic | 2 +-
> test/random-dump.c | 144
+++++++++++++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 149 insertions(+), 1 deletions(-)
> create mode 100644 test/random-dump.c
>
> diff --git a/test/Makefile.local b/test/Makefile.local
> index ba697f4..b59f837 100644
> --- a/test/Makefile.local
> +++ b/test/Makefile.local
> @@ -16,6 +16,9 @@ $(dir)/arg-test: $(dir)/arg-test.o
command-line-arguments.o util/libutil.a
> $(dir)/hex-xcode: $(dir)/hex-xcode.o command-line-arguments.o
util/libutil.a
> $(call quiet,CC) -I. $^ -o $@ -ltalloc
>
> +$(dir)/random-dump: $(dir)/random-dump.o command-line-arguments.o
util/libutil.a
> + $(call quiet,CC) -I. $^ -o $@ -ltalloc -lm
> +
> $(dir)/smtp-dummy: $(smtp_dummy_modules)
> $(call quiet,CC) $^ -o $@
>
> @@ -25,6 +28,7 @@ $(dir)/symbol-test: $(dir)/symbol-test.o
> .PHONY: test check
>
> test-binaries: $(dir)/arg-test $(dir)/hex-xcode \
> + $(dir)/random-dump \
> $(dir)/smtp-dummy $(dir)/symbol-test
>
> test: all test-binaries
> diff --git a/test/basic b/test/basic
> index af57026..e3a6cef 100755
> --- a/test/basic
> +++ b/test/basic
> @@ -54,7 +54,7 @@ test_begin_subtest 'Ensure that all available tests
will be run by notmuch-test'
> eval $(sed -n -e '/^TESTS="$/,/^"$/p' $TEST_DIRECTORY/notmuch-test)
> tests_in_suite=$(for i in $TESTS; do echo $i; done | sort)
> available=$(find "$TEST_DIRECTORY" -maxdepth 1 -type f -executable
-printf '%f\n' | \
> - sed -r -e
"/^(aggregate-results.sh|notmuch-test|smtp-dummy|test-verbose|symbol-test|arg-test|hex-xcode)$/d"
| \
> + sed -r -e
"/^(aggregate-results.sh|notmuch-test|smtp-dummy|test-verbose|symbol-test|arg-test|hex-xcode|random-dump)$/d"
| \
> sort)
> test_expect_equal "$tests_in_suite" "$available"
>
> diff --git a/test/random-dump.c b/test/random-dump.c
> new file mode 100644
> index 0000000..1949425
> --- /dev/null
> +++ b/test/random-dump.c
> @@ -0,0 +1,144 @@
> +/*
> + Generate a random dump file in 'notmuch' format.
> + Generated message-id's and tags are intentionally nasty.
> +
> + We restrict ourselves to 7 bit message-ids, because generating
> + random valid UTF-8 seems like work. And invalid UTF-8 can't be
> + round-tripped via Xapian.
> +
> + */
> +
> +#include <stdlib.h>
> +#include <assert.h>
> +#include <talloc.h>
> +#include <string.h>
> +#include "math.h"
> +#include "hex-escape.h"
> +#include "command-line-arguments.h"
> +
> +static void
> +hex_out (void *ctx, char *buf)
> +{
> + static char *encoded_buf = NULL;
> + static size_t encoded_buf_size = 0;
> +
> + if (hex_encode (ctx, buf, &encoded_buf, &encoded_buf_size) !=
HEX_SUCCESS) {
> + fprintf (stderr, "Hex encoding failed");
> + exit (1);
> + }
> +
> + fputs (encoded_buf, stdout);
> +}
> +
> +static void
> +random_chars (char *buf, int from, int stop, int max_char,
> + const char *blacklist)
> +{
> + int i;
> +
> + for (i = from; i < stop; i++) {
> + do {
> + buf[i] = ' ' + (random () % (max_char - ' '));
> + } while (blacklist && strchr (blacklist, buf[i]));
> + }
> +}
> +
> +static void
> +random_tag (void *ctx, size_t len)
> +{
> + static char *buf = NULL;
> + static size_t buf_len = 0;
> +
> + int use = (random () % (len - 1)) + 1;
> +
> + if (len > buf_len) {
> + buf = talloc_realloc (ctx, buf, char, len);
> + buf_len = len;
> + }
> +
> + random_chars (buf, 0, use, 255, NULL);
> +
> + buf[use] = '\0';
> +
> + hex_out (ctx, buf);
> +}
> +
> +static void
> +random_message_id (void *ctx, size_t len)
> +{
> + static char *buf = NULL;
> + static size_t buf_len = 0;
> +
> + int lhs_len = (random () % (len / 2 - 1)) + 1;
> +
> + int rhs_len = (random () % len / 2) + 1;
> +
> + const char *blacklist = "\n\r@<>[]()";
> +
> + if (len > buf_len) {
> + buf = talloc_realloc (ctx, buf, char, len);
> + buf_len = len;
> + }
> +
> + random_chars (buf, 0, lhs_len, 127, blacklist);
> +
> + buf[lhs_len] = '@';
> +
> + random_chars (buf, lhs_len + 1, lhs_len + rhs_len + 1, 127,
blacklist);
> +
> + hex_out (ctx, buf);
> +}
> +
> +int
> +main (int argc, char **argv)
> +{
> +
> + void *ctx = talloc_new (NULL);
> + int num_lines = 500;
> + int max_tags = 10;
> + int message_id_len = 100;
> + int tag_len = 50;
> + int seed = 734569;
> +
> + int pad_tag = 0, pad_mid = 0;
> +
> + notmuch_opt_desc_t options[] = {
> + { NOTMUCH_OPT_INT, &num_lines, "num-lines", 'n', 0 },
> + { NOTMUCH_OPT_INT, &max_tags, "max-tags", 'm', 0 },
> + { NOTMUCH_OPT_INT, &message_id_len, "message-id-len", 'M', 0 },
> + { NOTMUCH_OPT_INT, &tag_len, "tag-len", 't', 0 },
> + { NOTMUCH_OPT_INT, &seed, "tag-len", 't', 0 },
s/tag-len/seed/
> + { 0, 0, 0, 0, 0 }
> + };
> +
> + int opt_index = parse_arguments (argc, argv, options, 1);
> +
> + if (opt_index < 0)
> + exit (1);
> +
> + pad_mid = ((int) log10 (num_lines) + 1);
> + pad_tag = ((int) log10 (max_tags)) + 1;
> +
> + srandom (seed);
> +
> + int line;
> + for (line = 0; line < num_lines; line++) {
> +
> + printf ("%0*d-", pad_mid, line);
> +
> + random_message_id (ctx, message_id_len);
> +
> + int num_tags = random () % (max_tags + 1);
> +
> + int j;
> + for (j = 0; j < num_tags; j++) {
> + printf (" %0*d-", pad_tag, j);
> + random_tag (ctx, tag_len);
> + }
> + putchar ('\n');
> + }
> +
> + talloc_free (ctx);
> +
> + return 0;
> +}
> --
> 1.7.7.3
>
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