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cpython/Programs/_testembed.c at v3.6.15 · python/cpython · GitHub
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#include
<Python.h>
#include
"pythread.h"
#include
<stdio.h>
/*********************************************************
* Embedded interpreter tests that need a custom exe
*
* Executed via 'EmbeddingTests' in Lib/test/test_capi.py
*********************************************************/
static
void
_testembed_Py_Initialize
(
void
)
{
/* HACK: the "./" at front avoids a search along the PATH in
Modules/getpath.c */
Py_SetProgramName
(
L"./_testembed"
);
Py_Initialize
();
}
/*****************************************************
* Test repeated initialisation and subinterpreters
*****************************************************/
static
void
print_subinterp
(
void
)
{
/* Just output some debug stuff */
PyThreadState
*
ts
=
PyThreadState_Get
();
printf
(
"interp %p, thread state %p: "
,
ts
->
interp
,
ts
);
fflush
(
stdout
);
PyRun_SimpleString
(
"import sys;"
"print('id(modules) =', id(sys.modules));"
"sys.stdout.flush()"
);
}
static
int
test_repeated_init_and_subinterpreters
(
void
)
{
PyThreadState
*
mainstate
,
*
substate
;
#ifdef
WITH_THREAD
PyGILState_STATE
gilstate
;
#endif
int
i
,
j
;
for
(
i
=
0
;
i
<
15
;
i
++
) {
printf
(
"--- Pass %d ---\n"
,
i
);
_testembed_Py_Initialize
();
mainstate
=
PyThreadState_Get
();
#ifdef
WITH_THREAD
PyEval_InitThreads
();
PyEval_ReleaseThread
(
mainstate
);
gilstate
=
PyGILState_Ensure
();
#endif
print_subinterp
();
PyThreadState_Swap
(
NULL
);
for
(
j
=
0
;
j
<
3
;
j
++
) {
substate
=
Py_NewInterpreter
();
print_subinterp
();
Py_EndInterpreter
(
substate
);
}
PyThreadState_Swap
(
mainstate
);
print_subinterp
();
#ifdef
WITH_THREAD
PyGILState_Release
(
gilstate
);
#endif
PyEval_RestoreThread
(
mainstate
);
Py_Finalize
();
}
return
0
;
}
/*****************************************************
* Test forcing a particular IO encoding
*****************************************************/
static
void
check_stdio_details
(
const
char
*
encoding
,
const
char
*
errors
)
{
/* Output info for the test case to check */
if
(
encoding
) {
printf
(
"Expected encoding: %s\n"
,
encoding
);
}
else
{
printf
(
"Expected encoding: default\n"
);
}
if
(
errors
) {
printf
(
"Expected errors: %s\n"
,
errors
);
}
else
{
printf
(
"Expected errors: default\n"
);
}
fflush
(
stdout
);
/* Force the given IO encoding */
Py_SetStandardStreamEncoding
(
encoding
,
errors
);
_testembed_Py_Initialize
();
PyRun_SimpleString
(
"import sys;"
"print('stdin: {0.encoding}:{0.errors}'.format(sys.stdin));"
"print('stdout: {0.encoding}:{0.errors}'.format(sys.stdout));"
"print('stderr: {0.encoding}:{0.errors}'.format(sys.stderr));"
"sys.stdout.flush()"
);
Py_Finalize
();
}
static
int
test_forced_io_encoding
(
void
)
{
/* Check various combinations */
printf
(
"--- Use defaults ---\n"
);
check_stdio_details
(
NULL
,
NULL
);
printf
(
"--- Set errors only ---\n"
);
check_stdio_details
(
NULL
,
"ignore"
);
printf
(
"--- Set encoding only ---\n"
);
check_stdio_details
(
"latin-1"
,
NULL
);
printf
(
"--- Set encoding and errors ---\n"
);
check_stdio_details
(
"latin-1"
,
"replace"
);
/* Check calling after initialization fails */
Py_Initialize
();
if
(
Py_SetStandardStreamEncoding
(
NULL
,
NULL
)
==
0
) {
printf
(
"Unexpected success calling Py_SetStandardStreamEncoding"
);
}
Py_Finalize
();
return
0
;
}
/*********************************************************
* Test parts of the C-API that work before initialization
*********************************************************/
static
int
test_pre_initialization_api
(
void
)
{
/* Leading "./" ensures getpath.c can still find the standard library */
wchar_t
*
program
=
Py_DecodeLocale
(
"./spam"
,
NULL
);
if
(
program
==
NULL
) {
fprintf
(
stderr
,
"Fatal error: cannot decode program name\n"
);
return
1
;
}
Py_SetProgramName
(
program
);
Py_Initialize
();
Py_Finalize
();
PyMem_RawFree
(
program
);
return
0
;
}
/* *********************************************************
* List of test cases and the function that implements it.
*
* Names are compared case-sensitively with the first
* argument. If no match is found, or no first argument was
* provided, the names of all test cases are printed and
* the exit code will be -1.
*
* The int returned from test functions is used as the exit
* code, and test_capi treats all non-zero exit codes as a
* failed test.
*********************************************************/
struct
TestCase
{
const
char
*
name
;
int
(
*
func
)(
void
);
};
static
struct
TestCase
TestCases
[]
=
{
{
"forced_io_encoding"
,
test_forced_io_encoding
},
{
"repeated_init_and_subinterpreters"
,
test_repeated_init_and_subinterpreters
},
{
"pre_initialization_api"
,
test_pre_initialization_api
},
{
NULL
,
NULL
}
};
int
main
(
int
argc
,
char
*
argv
[])
{
if
(
argc
>
1
) {
for
(
struct
TestCase
*
tc
=
TestCases
;
tc
&&
tc
->
name
;
tc
++
) {
if
(
strcmp
(
argv
[
1
],
tc
->
name
)
==
0
)
return
(
*
tc
->
func
)();
}
}
/* No match found, or no test name provided, so display usage */
printf
(
"Python "
PY_VERSION
" _testembed executable for embedded interpreter tests\n"
"Normally executed via 'EmbeddingTests' in Lib/test/test_capi.py\n\n"
"Usage: %s TESTNAME\n\nAll available tests:\n"
,
argv
[
0
]);
for
(
struct
TestCase
*
tc
=
TestCases
;
tc
&&
tc
->
name
;
tc
++
) {
printf
(
" %s\n"
,
tc
->
name
);
}
/* Non-zero exit code will cause test_capi.py tests to fail.
This is intentional. */
return
-1
;
}
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