
import sys
import _thread

# different implementations have different minimum sizes
if sys.implementation == 'micropython':
    sz = 2 * 1024
else:
    sz = 32 * 1024

def foo():
    pass

def thread_entry():
    foo()
    with lock:
        global n_finished
        n_finished += 1

# test set/get of stack size
print(_thread.stack_size())
print(_thread.stack_size(sz))
print(_thread.stack_size() == sz)
print(_thread.stack_size())

lock = _thread.allocate_lock()
n_thread = 2
n_finished = 0

# set stack size and spawn a few threads
_thread.stack_size(sz)
for i in range(n_thread):
    _thread.start_new_thread(thread_entry, ())

# busy wait for threads to finish
while n_finished < n_thread:
    pass
print('done')


import sys
import _thread

# different implementations have different minimum sizes
if sys.implementation.name == 'micropython':
    sz = 2 * 1024
else:
    sz = 32 * 1024

def foo():
    pass

def thread_entry():
    foo()
    with lock:
        global n_finished
        n_finished += 1

# reset stack size to default
_thread.stack_size()

# test set/get of stack size
print(_thread.stack_size())
print(_thread.stack_size(sz))
print(_thread.stack_size() == sz)
print(_thread.stack_size())

lock = _thread.allocate_lock()
n_thread = 2
n_finished = 0

# set stack size and spawn a few threads
_thread.stack_size(sz)
for i in range(n_thread):
    _thread.start_new_thread(thread_entry, ())

# busy wait for threads to finish
while n_finished < n_thread:
    pass
print('done')

Make stack-size test run correctly and reliable on uPy.
tests/thread: Make stack-size test run correctly and reliable on uPy.

  
  import sys
  import _thread
  
  # different implementations have different minimum sizes
- if sys.implementation == 'micropython':
+ if sys.implementation.name == 'micropython':
      sz = 2 * 1024
  else:
      sz = 32 * 1024
  
  def foo():
      pass
  
  def thread_entry():
      foo()
      with lock:
          global n_finished
          n_finished += 1
+ 
+ # reset stack size to default
+ _thread.stack_size()
  
  # test set/get of stack size
  print(_thread.stack_size())
  print(_thread.stack_size(sz))
  print(_thread.stack_size() == sz)
  print(_thread.stack_size())
  
  lock = _thread.allocate_lock()
  n_thread = 2
  n_finished = 0
  
  # set stack size and spawn a few threads
  _thread.stack_size(sz)
  for i in range(n_thread):
      _thread.start_new_thread(thread_entry, ())
  
  # busy wait for threads to finish
  while n_finished < n_thread:
      pass
  print('done')
  
Make stack-size test run correctly and reliable on uPy.
## Code Before:

import sys
import _thread

# different implementations have different minimum sizes
if sys.implementation == 'micropython':
    sz = 2 * 1024
else:
    sz = 32 * 1024

def foo():
    pass

def thread_entry():
    foo()
    with lock:
        global n_finished
        n_finished += 1

# test set/get of stack size
print(_thread.stack_size())
print(_thread.stack_size(sz))
print(_thread.stack_size() == sz)
print(_thread.stack_size())

lock = _thread.allocate_lock()
n_thread = 2
n_finished = 0

# set stack size and spawn a few threads
_thread.stack_size(sz)
for i in range(n_thread):
    _thread.start_new_thread(thread_entry, ())

# busy wait for threads to finish
while n_finished < n_thread:
    pass
print('done')

## Instruction:
Make stack-size test run correctly and reliable on uPy.
## Code After:

import sys
import _thread

# different implementations have different minimum sizes
if sys.implementation.name == 'micropython':
    sz = 2 * 1024
else:
    sz = 32 * 1024

def foo():
    pass

def thread_entry():
    foo()
    with lock:
        global n_finished
        n_finished += 1

# reset stack size to default
_thread.stack_size()

# test set/get of stack size
print(_thread.stack_size())
print(_thread.stack_size(sz))
print(_thread.stack_size() == sz)
print(_thread.stack_size())

lock = _thread.allocate_lock()
n_thread = 2
n_finished = 0

# set stack size and spawn a few threads
_thread.stack_size(sz)
for i in range(n_thread):
    _thread.start_new_thread(thread_entry, ())

# busy wait for threads to finish
while n_finished < n_thread:
    pass
print('done')
