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test_windows.py
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90 lines (71 loc) · 2.25 KB
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import os
import sys
import time
import pytest
if os.name == 'nt':
import win32console # "pip install pypiwin32" to get this
else:
pytest.skip('skipping windows-only tests', allow_module_level=True)
import progressbar
pytest_plugins = 'pytester'
_WIDGETS = [
progressbar.Percentage(),
' ',
progressbar.Bar(),
' ',
progressbar.FileTransferSpeed(),
' ',
progressbar.ETA(),
]
_MB: int = 1024 * 1024
# ---------------------------------------------------------------------------
def scrape_console(line_count):
pcsb = win32console.GetStdHandle(win32console.STD_OUTPUT_HANDLE)
csbi = pcsb.GetConsoleScreenBufferInfo()
col_max = csbi['Size'].X
row_max = csbi['CursorPosition'].Y
line_count = min(line_count, row_max)
lines = []
for row in range(line_count):
pct = win32console.PyCOORDType(0, row + row_max - line_count)
line = pcsb.ReadConsoleOutputCharacter(col_max, pct)
lines.append(line.rstrip())
return lines
# ---------------------------------------------------------------------------
def runprogress() -> int:
print('***BEGIN***')
b = progressbar.ProgressBar(
widgets=['example.m4v: ', *_WIDGETS],
max_value=10 * _MB,
)
for i in range(10):
b.update((i + 1) * _MB)
time.sleep(0.25)
b.finish()
print('***END***')
return 0
# ---------------------------------------------------------------------------
def find(lines, x):
try:
return lines.index(x)
except ValueError:
return -sys.maxsize
# ---------------------------------------------------------------------------
def test_windows(testdir: pytest.Testdir) -> None:
testdir.run(
sys.executable, '-c', 'import progressbar; print(progressbar.__file__)'
)
def main() -> int:
runprogress()
scraped_lines = scrape_console(100)
# reverse lines so we find the LAST instances of output.
scraped_lines.reverse()
index_begin = find(scraped_lines, '***BEGIN***')
index_end = find(scraped_lines, '***END***')
if index_end + 2 != index_begin:
print('ERROR: Unexpected multi-line output from progressbar')
print(f'{index_begin=} {index_end=}')
return 1
return 0
if __name__ == '__main__':
main()