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fish-shell/fish_tests.cpp

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/** \file fish_tests.c
Various bug and feature tests. Compiled and run by make test.
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <wchar.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <unistd.h>
#include <termios.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <fcntl.h>
#include <stdarg.h>
#include <assert.h>
#include <iostream>
#include <string>
#include <sstream>
#include <algorithm>
#include <iterator>
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#endif
#include <signal.h>
#include <locale.h>
#include <dirent.h>
#include <time.h>
#include "fallback.h"
#include "util.h"
#include "common.h"
#include "proc.h"
#include "reader.h"
#include "builtin.h"
#include "function.h"
#include "autoload.h"
#include "complete.h"
#include "wutil.h"
#include "env.h"
#include "expand.h"
#include "parser.h"
#include "tokenizer.h"
#include "output.h"
#include "exec.h"
#include "event.h"
#include "path.h"
#include "history.h"
#include "highlight.h"
#include "iothread.h"
#include "postfork.h"
#include "signal.h"
/**
The number of tests to run
*/
//#define ESCAPE_TEST_COUNT 1000000
#define ESCAPE_TEST_COUNT 10000
/**
The average length of strings to unescape
*/
#define ESCAPE_TEST_LENGTH 100
/**
The higest character number of character to try and escape
*/
#define ESCAPE_TEST_CHAR 4000
/**
Number of laps to run performance testing loop
*/
#define LAPS 50
/**
The result of one of the test passes
*/
#define NUM_ANS L"-7 99999999 1234567 deadbeef DEADBEEFDEADBEEF"
/**
Number of encountered errors
*/
static int err_count=0;
/**
Print formatted output
*/
static void say( const wchar_t *blah, ... )
{
va_list va;
va_start( va, blah );
vwprintf( blah, va );
va_end( va );
wprintf( L"\n" );
}
/**
Print formatted error string
*/
static void err( const wchar_t *blah, ... )
{
va_list va;
va_start( va, blah );
err_count++;
wprintf( L"Error: " );
vwprintf( blah, va );
va_end( va );
wprintf( L"\n" );
}
/**
Test the escaping/unescaping code by escaping/unescaping random
strings and verifying that the original string comes back.
*/
static void test_escape()
{
int i;
wcstring sb;
say( L"Testing escaping and unescaping" );
for( i=0; i<ESCAPE_TEST_COUNT; i++ )
{
const wchar_t *o, *e, *u;
sb.clear();
while( rand() % ESCAPE_TEST_LENGTH )
{
sb.push_back((rand() %ESCAPE_TEST_CHAR) +1 );
}
o = (const wchar_t *)sb.c_str();
e = escape(o, 1);
u = unescape( e, 0 );
if( !o || !e || !u )
{
err( L"Escaping cycle of string %ls produced null pointer on %ls", o, e?L"unescaping":L"escaping" );
}
if( wcscmp(o, u) )
{
err( L"Escaping cycle of string %ls produced different string %ls", o, u );
}
free( (void *)e );
free( (void *)u );
}
}
static void test_format(void) {
say( L"Testing formatting functions" );
struct { unsigned long long val; const char *expected; } tests[] = {
{ 0, "empty" },
{ 1, "1B" },
{ 2, "2B" },
{ 1024, "1kB" },
{ 1870, "1.8kB" },
{ 4322911, "4.1MB" }
};
size_t i;
for (i=0; i < sizeof tests / sizeof *tests; i++) {
char buff[128];
format_size_safe(buff, tests[i].val);
assert( ! strcmp(buff, tests[i].expected));
}
for (int j=-129; j <= 129; j++) {
char buff1[128], buff2[128];
format_long_safe(buff1, j);
sprintf(buff2, "%d", j);
assert( ! strcmp(buff1, buff2));
}
long q = LONG_MIN;
char buff1[128], buff2[128];
format_long_safe(buff1, q);
sprintf(buff2, "%ld", q);
assert( ! strcmp(buff1, buff2));
}
/**
Test wide/narrow conversion by creating random strings and
verifying that the original string comes back thorugh double
conversion.
*/
static void test_convert()
{
/* char o[] =
{
-17, -128, -121, -68, 0
}
;
wchar_t *w = str2wcs(o);
char *n = wcs2str(w);
int i;
for( i=0; o[i]; i++ )
{
bitprint(o[i]);;
//wprintf(L"%d ", o[i]);
}
wprintf(L"\n");
for( i=0; w[i]; i++ )
{
wbitprint(w[i]);;
//wprintf(L"%d ", w[i]);
}
wprintf(L"\n");
for( i=0; n[i]; i++ )
{
bitprint(n[i]);;
//wprintf(L"%d ", n[i]);
}
wprintf(L"\n");
return;
*/
int i;
std::vector<char> sb;
say( L"Testing wide/narrow string conversion" );
for( i=0; i<ESCAPE_TEST_COUNT; i++ )
{
wchar_t *w;
const char *o, *n;
char c;
sb.clear();
while( rand() % ESCAPE_TEST_LENGTH )
{
c = rand ();
sb.push_back(c);
}
c = 0;
sb.push_back(c);
o = &sb.at(0);
w = str2wcs(o);
n = wcs2str(w);
if( !o || !w || !n )
{
err( L"Line %d - Conversion cycle of string %s produced null pointer on %s", __LINE__, o, w?L"str2wcs":L"wcs2str" );
}
if( strcmp(o, n) )
{
err( L"Line %d - %d: Conversion cycle of string %s produced different string %s", __LINE__, i, o, n );
}
free( w );
free( (void *)n );
}
}
/**
Test the tokenizer
*/
static void test_tok()
{
tokenizer t;
say( L"Testing tokenizer" );
say( L"Testing invalid input" );
tok_init( &t, 0, 0 );
if( tok_last_type( &t ) != TOK_ERROR )
{
err(L"Invalid input to tokenizer was undetected" );
}
say( L"Testing use of broken tokenizer" );
if( !tok_has_next( &t ) )
{
err( L"tok_has_next() should return 1 once on broken tokenizer" );
}
tok_next( &t );
if( tok_last_type( &t ) != TOK_ERROR )
{
err(L"Invalid input to tokenizer was undetected" );
}
/*
This should crash if there is a bug. No reliable way to detect otherwise.
*/
say( L"Test destruction of broken tokenizer" );
tok_destroy( &t );
{
const wchar_t *str = L"string <redirection 2>&1 'nested \"quoted\" '(string containing subshells ){and,brackets}$as[$well (as variable arrays)]";
const int types[] =
{
TOK_STRING, TOK_REDIRECT_IN, TOK_STRING, TOK_REDIRECT_FD, TOK_STRING, TOK_STRING, TOK_END
}
;
size_t i;
say( L"Test correct tokenization" );
for( i=0, tok_init( &t, str, 0 ); i<(sizeof(types)/sizeof(int)); i++,tok_next( &t ) )
{
if( types[i] != tok_last_type( &t ) )
{
err( L"Tokenization error:");
wprintf( L"Token number %d of string \n'%ls'\n, expected token type %ls, got token '%ls' of type %ls\n",
i+1,
str,
tok_get_desc(types[i]),
tok_last(&t),
tok_get_desc(tok_last_type( &t )) );
}
}
}
}
static int test_fork_helper(void *unused) {
size_t i;
for (i=0; i < 100000; i++) {
delete [] (new char[4 * 1024 * 1024]);
}
return 0;
}
static void test_fork(void) {
return; // Test is disabled until I can force it to fail
say(L"Testing fork");
size_t i, max = 100;
for (i=0; i < 100; i++) {
printf("%lu / %lu\n", i+1, max);
/* Do something horrible to try to trigger an error */
#define THREAD_COUNT 8
#define FORK_COUNT 200
#define FORK_LOOP_COUNT 16
signal_block();
for (size_t i=0; i < THREAD_COUNT; i++) {
iothread_perform<void>(test_fork_helper, NULL, NULL);
}
for (size_t q = 0; q < FORK_LOOP_COUNT; q++) {
pid_t pids[FORK_COUNT];
for (size_t i=0; i < FORK_COUNT; i++) {
pid_t pid = execute_fork(false);
if (pid > 0) {
/* Parent */
pids[i] = pid;
} else if (pid == 0) {
/* Child */
new char[4 * 1024 * 1024];
exit_without_destructors(0);
} else {
perror("fork");
}
}
for (size_t i=0; i < FORK_COUNT; i++) {
int status = 0;
if (pids[i] != waitpid(pids[i], &status, 0)) {
perror("waitpid");
assert(0);
}
assert(WIFEXITED(status) && 0 == WEXITSTATUS(status));
}
}
iothread_drain_all();
signal_unblock();
}
#undef FORK_COUNT
}
/**
Test the parser
*/
static void test_parser()
{
say( L"Testing parser" );
parser_t parser(PARSER_TYPE_GENERAL);
say( L"Testing null input to parser" );
if( !parser.test( 0, 0, 0, 0 ) )
{
err( L"Null input to parser.test undetected" );
}
say( L"Testing block nesting" );
if( !parser.test( L"if; end", 0, 0, 0 ) )
{
err( L"Incomplete if statement undetected" );
}
if( !parser.test( L"if test; echo", 0, 0, 0 ) )
{
err( L"Missing end undetected" );
}
if( !parser.test( L"if test; end; end", 0, 0, 0 ) )
{
err( L"Unbalanced end undetected" );
}
say( L"Testing detection of invalid use of builtin commands" );
if( !parser.test( L"case foo", 0, 0, 0 ) )
{
err( L"'case' command outside of block context undetected" );
}
if( !parser.test( L"switch ggg; if true; case foo;end;end", 0, 0, 0 ) )
{
err( L"'case' command outside of switch block context undetected" );
}
if( !parser.test( L"else", 0, 0, 0 ) )
{
err( L"'else' command outside of conditional block context undetected" );
}
if( !parser.test( L"break", 0, 0, 0 ) )
{
err( L"'break' command outside of loop block context undetected" );
}
if( !parser.test( L"exec ls|less", 0, 0, 0 ) || !parser.test( L"echo|return", 0, 0, 0 ))
{
err( L"Invalid pipe command undetected" );
}
say( L"Testing basic evaluation" );
#if 0
/* This fails now since the parser takes a wcstring&, and NULL converts to wchar_t * converts to wcstring which crashes (thanks C++) */
if( !parser.eval( 0, 0, TOP ) )
{
err( L"Null input when evaluating undetected" );
}
#endif
if( !parser.eval( L"ls", 0, WHILE ) )
{
err( L"Invalid block mode when evaluating undetected" );
}
}
class lru_node_test_t : public lru_node_t {
public:
lru_node_test_t(const wcstring &tmp) : lru_node_t(tmp) { }
};
class test_lru_t : public lru_cache_t<lru_node_test_t> {
public:
test_lru_t() : lru_cache_t<lru_node_test_t>(16) { }
std::vector<lru_node_test_t *> evicted_nodes;
virtual void node_was_evicted(lru_node_test_t *node) {
assert(find(evicted_nodes.begin(), evicted_nodes.end(), node) == evicted_nodes.end());
evicted_nodes.push_back(node);
}
};
static void test_lru(void) {
say( L"Testing LRU cache" );
test_lru_t cache;
std::vector<lru_node_test_t *> expected_evicted;
size_t total_nodes = 20;
for (size_t i=0; i < total_nodes; i++) {
assert(cache.size() == std::min(i, (size_t)16));
lru_node_test_t *node = new lru_node_test_t(to_string(i));
if (i < 4) expected_evicted.push_back(node);
// Adding the node the first time should work, and subsequent times should fail
assert(cache.add_node(node));
assert(! cache.add_node(node));
}
assert(cache.evicted_nodes == expected_evicted);
cache.evict_all_nodes();
assert(cache.evicted_nodes.size() == total_nodes);
while (! cache.evicted_nodes.empty()) {
lru_node_t *node = cache.evicted_nodes.back();
cache.evicted_nodes.pop_back();
delete node;
}
}
/**
Perform parameter expansion and test if the output equals the zero-terminated parameter list supplied.
\param in the string to expand
\param flags the flags to send to expand_string
*/
static int expand_test( const wchar_t *in, int flags, ... )
{
std::vector<completion_t> output;
va_list va;
size_t i=0;
int res=1;
wchar_t *arg;
if( expand_string( in, output, flags) )
{
}
va_start( va, flags );
while( (arg=va_arg(va, wchar_t *) )!= 0 )
{
if( output.size() == i )
{
res=0;
break;
}
if (output.at(i).completion != arg)
{
res=0;
break;
}
i++;
}
va_end( va );
return res;
}
/**
Test globbing and other parameter expansion
*/
static void test_expand()
{
say( L"Testing parameter expansion" );
if( !expand_test( L"foo", 0, L"foo", 0 ))
{
err( L"Strings do not expand to themselves" );
}
if( !expand_test( L"a{b,c,d}e", 0, L"abe", L"ace", L"ade", 0 ) )
{
err( L"Bracket expansion is broken" );
}
if( !expand_test( L"a*", EXPAND_SKIP_WILDCARDS, L"a*", 0 ) )
{
err( L"Cannot skip wildcard expansion" );
}
}
/** Test path functions */
static void test_path()
{
say( L"Testing path functions" );
wcstring path = L"//foo//////bar/";
wcstring canon = path;
path_make_canonical(canon);
if( canon != L"/foo/bar" )
{
err( L"Bug in canonical PATH code" );
}
}
/** Test the 'test' builtin */
int builtin_test( parser_t &parser, wchar_t **argv );
static bool run_test_test(int expected, wcstring_list_t &lst) {
parser_t parser(PARSER_TYPE_GENERAL);
size_t i, count = lst.size();
wchar_t **argv = new wchar_t *[count+2];
argv[0] = (wchar_t *)L"test";
for (i=0; i < count; i++) {
argv[i+1] = (wchar_t *)lst.at(i).c_str();
}
argv[i+1] = NULL;
int result = builtin_test(parser, argv);
delete[] argv;
return expected == result;
}
static bool run_test_test(int expected, const wcstring &str) {
using namespace std;
wcstring_list_t lst;
wistringstream iss(str);
copy(istream_iterator<wcstring, wchar_t, std::char_traits<wchar_t> >(iss),
istream_iterator<wstring, wchar_t, std::char_traits<wchar_t> >(),
back_inserter<vector<wcstring> >(lst));
return run_test_test(expected, lst);
}
static void test_test() {
say(L"Testing test builtin");
assert(run_test_test(0, L"5 -ne 6"));
assert(run_test_test(0, L"5 -eq 5"));
assert(run_test_test(0, L"0 -eq 0"));
assert(run_test_test(0, L"-1 -eq -1"));
assert(run_test_test(0, L"1 -ne -1"));
assert(run_test_test(1, L"-1 -ne -1"));
assert(run_test_test(0, L"abc != def"));
assert(run_test_test(1, L"abc = def"));
assert(run_test_test(0, L"5 -le 10"));
assert(run_test_test(0, L"10 -le 10"));
assert(run_test_test(1, L"20 -le 10"));
assert(run_test_test(0, L"-1 -le 0"));
assert(run_test_test(1, L"0 -le -1"));
assert(run_test_test(0, L"15 -ge 10"));
assert(run_test_test(0, L"15 -ge 10"));
assert(run_test_test(1, L"! 15 -ge 10"));
assert(run_test_test(0, L"! ! 15 -ge 10"));
assert(run_test_test(0, L"0 -ne 1 -a 0 -eq 0"));
assert(run_test_test(0, L"0 -ne 1 -a -n 5"));
assert(run_test_test(0, L"-n 5 -a 10 -gt 5"));
assert(run_test_test(0, L"-n 3 -a -n 5"));
/* test precedence:
'0 == 0 || 0 == 1 && 0 == 2'
should be evaluated as:
'0 == 0 || (0 == 1 && 0 == 2)'
and therefore true. If it were
'(0 == 0 || 0 == 1) && 0 == 2'
it would be false. */
assert(run_test_test(0, L"0 = 0 -o 0 = 1 -a 0 = 2"));
assert(run_test_test(0, L"-n 5 -o 0 = 1 -a 0 = 2"));
assert(run_test_test(1, L"( 0 = 0 -o 0 = 1 ) -a 0 = 2"));
assert(run_test_test(0, L"0 = 0 -o ( 0 = 1 -a 0 = 2 )"));
/* A few lame tests for permissions; these need to be a lot more complete. */
assert(run_test_test(0, L"-e /bin/ls"));
assert(run_test_test(1, L"-e /bin/ls_not_a_path"));
assert(run_test_test(0, L"-x /bin/ls"));
assert(run_test_test(1, L"-x /bin/ls_not_a_path"));
assert(run_test_test(0, L"-d /bin/"));
assert(run_test_test(1, L"-d /bin/ls"));
/* This failed at once point */
assert(run_test_test(1, L"-d /bin -a 5 -eq 3"));
assert(run_test_test(0, L"-d /bin -o 5 -eq 3"));
assert(run_test_test(0, L"-d /bin -a ! 5 -eq 3"));
}
/** Testing colors */
static void test_colors()
{
say(L"Testing colors");
assert(rgb_color_t(L"#FF00A0").is_rgb());
assert(rgb_color_t(L"FF00A0").is_rgb());
assert(rgb_color_t(L"#F30").is_rgb());
assert(rgb_color_t(L"F30").is_rgb());
assert(rgb_color_t(L"f30").is_rgb());
assert(rgb_color_t(L"#FF30a5").is_rgb());
assert(rgb_color_t(L"3f30").is_none());
assert(rgb_color_t(L"##f30").is_none());
assert(rgb_color_t(L"magenta").is_named());
assert(rgb_color_t(L"MaGeNTa").is_named());
assert(rgb_color_t(L"mooganta").is_none());
}
/* Testing autosuggestion */
static void test_autosuggest() {
bool autosuggest_handle_special(const wcstring &str, const wcstring &working_directory, bool *outSuggestionOK);
}
/**
Test speed of completion calculations
*/
void perf_complete()
{
wchar_t c;
std::vector<completion_t> out;
long long t1, t2;
int matches=0;
double t;
wchar_t str[3]=
{
0, 0, 0
}
;
int i;
say( L"Testing completion performance" );
reader_push(L"");
say( L"Here we go" );
t1 = get_time();
for( c=L'a'; c<=L'z'; c++ )
{
str[0]=c;
reader_set_buffer( str, 0 );
complete( str, out, COMPLETE_DEFAULT, NULL );
matches += out.size();
out.clear();
}
t2=get_time();
t = (double)(t2-t1)/(1000000*26);
say( L"One letter command completion took %f seconds per completion, %f microseconds/match", t, (double)(t2-t1)/matches );
matches=0;
t1 = get_time();
for( i=0; i<LAPS; i++ )
{
str[0]='a'+(rand()%26);
str[1]='a'+(rand()%26);
reader_set_buffer( str, 0 );
complete( str, out, COMPLETE_DEFAULT, NULL );
matches += out.size();
out.clear();
}
t2=get_time();
t = (double)(t2-t1)/(1000000*LAPS);
say( L"Two letter command completion took %f seconds per completion, %f microseconds/match", t, (double)(t2-t1)/matches );
reader_pop();
}
static void test_history_matches(history_search_t &search, size_t matches) {
size_t i;
for (i=0; i < matches; i++) {
assert(search.go_backwards());
wcstring item = search.current_string();
}
assert(! search.go_backwards());
for (i=1; i < matches; i++) {
assert(search.go_forwards());
}
assert(! search.go_forwards());
}
static bool history_contains(history_t *history, const wcstring &txt) {
bool result = false;
size_t i;
for (i=1; ; i++) {
history_item_t item = history->item_at_index(i);
if (item.empty())
break;
if (item.str() == txt) {
result = true;
break;
}
}
return result;
}
class history_tests_t {
public:
static void test_history(void);
static void test_history_merge(void);
};
static wcstring random_string(void) {
wcstring result;
size_t max = 1 + rand() % 32;
while (max--) {
wchar_t c = 1 + rand()%ESCAPE_TEST_CHAR;
result.push_back(c);
}
return result;
}
void history_tests_t::test_history(void) {
say( L"Testing history");
history_t &history = history_t::history_with_name(L"test_history");
history.clear();
history.add(L"Gamma");
history.add(L"Beta");
history.add(L"Alpha");
/* All three items match "a" */
history_search_t search1(history, L"a");
test_history_matches(search1, 3);
assert(search1.current_string() == L"Alpha");
/* One item matches "et" */
history_search_t search2(history, L"et");
test_history_matches(search2, 1);
assert(search2.current_string() == L"Beta");
/* Test history escaping and unescaping, yaml, etc. */
std::vector<history_item_t> before, after;
history.clear();
size_t i, max = 100;
for (i=1; i <= max; i++) {
/* Generate a value */
wcstring value = wcstring(L"test item ") + to_string(i);
/* Maybe add some backslashes */
if (i % 3 == 0)
value.append(L"(slashies \\\\\\ slashies)");
/* Generate some paths */
path_list_t paths;
size_t count = rand() % 6;
while (count--) {
paths.push_front(random_string());
}
/* Record this item */
history_item_t item(value, time(NULL), paths);
before.push_back(item);
history.add(item);
}
history.save();
/* Read items back in reverse order and ensure they're the same */
for (i=100; i >= 1; i--) {
history_item_t item = history.item_at_index(i);
assert(! item.empty());
after.push_back(item);
}
assert(before.size() == after.size());
for (size_t i=0; i < before.size(); i++) {
const history_item_t &bef = before.at(i), &aft = after.at(i);
assert(bef.contents == aft.contents);
assert(bef.creation_timestamp == aft.creation_timestamp);
assert(bef.required_paths == aft.required_paths);
}
/* Clean up after our tests */
history.clear();
}
// wait until the next second
static void time_barrier(void) {
time_t start = time(NULL);
do {
usleep(1000);
} while (time(NULL) == start);
}
void history_tests_t::test_history_merge(void) {
// In a single fish process, only one history is allowed to exist with the given name
// But it's common to have multiple history instances with the same name active in different processes,
// e.g. when you have multiple shells open.
// We try to get that right and merge all their history together. Test that case.
say( L"Testing history merge");
const size_t count = 3;
const wcstring name = L"merge_test";
history_t *hists[count] = {new history_t(name), new history_t(name), new history_t(name)};
wcstring texts[count] = {L"History 1", L"History 2", L"History 3"};
/* Make sure history is clear */
for (size_t i=0; i < count; i++) {
hists[i]->clear();
}
/* Make sure we don't add an item in the same second as we created the history */
time_barrier();
/* Add a different item to each */
for (size_t i=0; i < count; i++) {
hists[i]->add(texts[i]);
}
/* Save them */
for (size_t i=0; i < count; i++) {
hists[i]->save();
}
/* Make sure each history contains what it ought to, but they have not leaked into each other */
for (size_t i = 0; i < count; i++) {
for (size_t j=0; j < count; j++) {
bool does_contain = history_contains(hists[i], texts[j]);
bool should_contain = (i == j);
assert(should_contain == does_contain);
}
}
/* Make a new history. It should contain everything. The time_barrier() is so that the timestamp is newer, since we only pick up items whose timestamp is before the birth stamp. */
time_barrier();
history_t *everything = new history_t(name);
for (size_t i=0; i < count; i++) {
assert(history_contains(everything, texts[i]));
}
/* Clean up */
for (size_t i=0; i < 3; i++) {
delete hists[i];
}
everything->clear();
delete everything; //not as scary as it looks
}
/**
Main test
*/
int main( int argc, char **argv )
{
setlocale( LC_ALL, "" );
srand( time( 0 ) );
program_name=L"(ignore)";
say( L"Testing low-level functionality");
say( L"Lines beginning with '(ignore):' are not errors, they are warning messages\ngenerated by the fish parser library when given broken input, and can be\nignored. All actual errors begin with 'Error:'." );
set_main_thread();
setup_fork_guards();
proc_init();
event_init();
function_init();
builtin_init();
reader_init();
env_init();
test_format();
test_escape();
test_convert();
test_tok();
test_fork();
test_parser();
test_lru();
test_expand();
test_test();
test_path();
test_colors();
test_autosuggest();
history_tests_t::test_history();
history_tests_t::test_history_merge();
say( L"Encountered %d errors in low-level tests", err_count );
/*
Skip performance tests for now, since they seem to hang when running from inside make (?)
*/
// say( L"Testing performance" );
// perf_complete();
env_destroy();
reader_destroy();
builtin_destroy();
wutil_destroy();
event_destroy();
proc_destroy();
}
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