tests/: avoid process-related test failures on Pyodide.

Pyodide does not support child processes or multiprocesses, so those tests that
use these features now return immediately if we are running on Pyodide.

Author: julian-smith-artifex-com

tests/test_codespell.py

@@ -12,6 +12,10 @@ def test_codespell():
     '''
     Check rebased Python code with codespell.
     '''
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_codespell(): not running on Pyodide - cannot run child processes.')
+        return
+        
     if not hasattr(pymupdf, 'mupdf'):
         print('Not running codespell with classic implementation.')
         return

tests/test_flake8.py

@@ -9,6 +9,10 @@ def test_flake8():
     '''
     Check rebased Python code with flake8.
     '''
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_flake8(): not running on Pyodide - cannot run child processes.')
+        return
+        
     if not hasattr(pymupdf, 'mupdf'):
         print(f'Not running flake8 with classic implementation.')
         return

tests/test_font.py

@@ -83,6 +83,10 @@ def test_2608():
         assert text == expected
 
 def test_fontarchive():
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_fontarchive(): not running on Pyodide - we get ValueError: No font code \'notos\' found in pymupdf-fonts..')
+        return
+        
     import subprocess
     arch = pymupdf.Archive()
     css = pymupdf.css_for_pymupdf_font("notos", archive=arch, name="sans-serif")
@@ -234,6 +238,10 @@ def test_3887():
 
 
 def test_4457():
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_4457(): not running on Pyodide - cannot run child processes.')
+        return
+        
     print()
     files = (
             ('https://github.com/user-attachments/files/20862923/test_4457_a.pdf', 'test_4457_a.pdf', None, 4),

tests/test_general.py

@@ -785,6 +785,9 @@ def test_2736():
 
 
 def test_subset_fonts():
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_subset_fonts(): not running on Pyodide - ValueError: No font code \'ubuntu\' found in pymupdf-fonts.')
+        return
     """Confirm subset_fonts is working."""
     if not hasattr(pymupdf, "mupdf"):
         print("Not testing 'test_subset_fonts' in classic.")
@@ -1026,6 +1029,10 @@ def next_fd():
     os.remove(oldfile)
 
 def test_cli():
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_cli(): not running on Pyodide - cannot run child processes.')
+        return
+        
     if not hasattr(pymupdf, 'mupdf'):
         print('test_cli(): Not running on classic because of fitz_old.')
         return
@@ -1063,6 +1070,10 @@ def test_cli_out():
     Check redirection of messages and log diagnostics with environment
     variables PYMUPDF_LOG and PYMUPDF_MESSAGE.
     '''
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_cli_out(): not running on Pyodide - cannot run child processes.')
+        return
+        
     if not hasattr(pymupdf, 'mupdf'):
         print('test_cli(): Not running on classic because of fitz_old.')
         return
@@ -1150,6 +1161,10 @@ def test_use_python_logging():
     '''
     Checks pymupdf.use_python_logging().
     '''
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_cli(): not running on Pyodide - cannot run child processes.')
+        return
+        
     log_prefix = None
     if os.environ.get('PYMUPDF_USE_EXTRA') == '0':
         log_prefix = f'.+Using non-default setting from PYMUPDF_USE_EXTRA: \'0\''
@@ -1433,6 +1448,10 @@ def test_open2():
     Checks behaviour of fz_open_document() and fz_open_document_with_stream()
     with different filenames/magic values.
     '''
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_open2(): not running on Pyodide - cannot run child processes.')
+        return
+        
     if platform.system() == 'Windows':
         print(f'test_open2(): not running on Windows because `git ls-files` known fail on Github Windows runners.')
         return
@@ -1789,6 +1808,10 @@ def test_4309():
     document.delete_page()
 
 def test_4263():
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_4263(): not running on Pyodide - cannot run child processes.')
+        return
+        
     path = os.path.normpath(f'{__file__}/../../tests/resources/test_4263.pdf')
     path_out = f'{path}.linerarized.pdf'
     command = f'pymupdf clean -linear {path} {path_out}'
@@ -1915,6 +1938,10 @@ def show(items):
 
 
 def test_4533():
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_4533(): not running on Pyodide - cannot run child processes.')
+        return
+        
     print()
     path = util.download(
             'https://github.com/user-attachments/files/20497146/NineData_user_manual_V3.0.5.pdf',
@@ -1966,6 +1993,10 @@ def test_gitinfo():
 
 
 def test_4392():
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_4392(): not running on Pyodide - cannot run child processes.')
+        return
+        
     print()
     path = os.path.normpath(f'{__file__}/../../tests/test_4392.py')
     with open(path, 'w') as f:

tests/test_import.py

@@ -5,6 +5,10 @@
 
 
 def test_import():
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_import(): not running on Pyodide - cannot run child processes.')
+        return
+        
     root = os.path.abspath(f'{__file__}/../../')
     p = f'{root}/tests/resources_test_import.py'
     with open(p, 'w') as f:

tests/test_memory.py

@@ -17,6 +17,10 @@ def test_2791():
     '''
     Check for memory leaks.
     '''
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_2791(): not running on Pyodide - No module named \'psutil\'.')
+        return
+        
     if os.environ.get('PYMUPDF_RUNNING_ON_VALGRIND') == '1':
         print(f'test_2791(): not running because PYMUPDF_RUNNING_ON_VALGRIND=1.')
         return
@@ -94,6 +98,10 @@ def get_stat():
 
 
 def test_4090():
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_4090(): not running on Pyodide - No module named \'psutil\'.')
+        return
+        
     print(f'test_4090(): {os.environ.get("PYTHONMALLOC")=}.')
     import psutil
     process = psutil.Process()
@@ -148,6 +156,10 @@ def show_tracemalloc_diff(snapshot1, snapshot2):
 
 
 def test_4125():
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_4125(): not running on Pyodide - No module named \'psutil\'.')
+        return
+        
     if os.environ.get('PYMUPDF_RUNNING_ON_VALGRIND') == '1':
         print(f'test_4125(): not running because PYMUPDF_RUNNING_ON_VALGRIND=1.')
         return

tests/test_pixmap.py

@@ -70,7 +70,7 @@ def test_pilsave():
         pix2 = pymupdf.Pixmap(stream)
         assert repr(pix1) == repr(pix2)
     except ModuleNotFoundError:
-        assert platform.system() == 'Windows' and sys.maxsize == 2**31 - 1
+        assert platform.system() in ('Windows', 'Emscripten') and sys.maxsize == 2**31 - 1
 
 
 def test_save(tmpdir):
@@ -556,6 +556,9 @@ def test_4423():
 
 
 def test_4445():
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_4445(): not running on Pyodide - cannot run child processes.')
+        return
     print()
     # Test case is large so we download it instead of having it in PyMuPDF
     # git. We put it in `cache/` directory do it is not removed by `git clean`

tests/test_pylint.py

@@ -7,6 +7,10 @@
 
 def test_pylint():
 
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_pylint(): not running on Pyodide - cannot run child processes.')
+        return
+    
     if not hasattr(pymupdf, 'mupdf'):
         print(f'test_pylint(): Not running with classic implementation.')
         return

tests/test_tesseract.py

@@ -15,6 +15,10 @@ def test_tesseract():
     But if TESSDATA_PREFIX is set in the environment, we assert that
     FzPage.get_textpage_ocr() succeeds.
     '''
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_tesseract(): not running on Pyodide - cannot run child processes.')
+        return
+        
     path = os.path.abspath( f'{__file__}/../resources/2.pdf')
     doc = pymupdf.open( path)
     page = doc[5]
@@ -71,6 +75,10 @@ def test_3842b():
     #
     # Note that Tesseract seems to output its own diagnostics.
     #
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_3842b(): not running on Pyodide - cannot run child processes.')
+        return
+        
     path = os.path.normpath(f'{__file__}/../../tests/resources/test_3842.pdf')
     with pymupdf.open(path) as document:
         page = document[6]
@@ -91,6 +99,10 @@ def test_3842b():
 
 
 def test_3842():
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_3842(): not running on Pyodide - cannot run child processes.')
+        return
+        
     path = os.path.normpath(f'{__file__}/../../tests/resources/test_3842.pdf')
     with pymupdf.open(path) as document:
         page = document[6]

tests/test_textextract.py

@@ -263,6 +263,10 @@ def test_3197():
 
 
 def test_document_text():
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_document_text(): not running on Pyodide - multiprocessing not available.')
+        return
+        
     import platform
     import time
 
@@ -310,6 +314,9 @@ def llen(texts):
 
 
 def test_4524():
+    if os.environ.get('PYODIDE_ROOT'):
+        print('test_4524(): not running on Pyodide - multiprocessing not available.')
+        return
     path = os.path.abspath(f'{__file__}/../../tests/resources/mupdf_explored.pdf')
     print('')
     document = pymupdf.Document(path)