def tess4_available():
"""Check if a tesseract 4 binary is available, even if it's not the
official "tesseract" on PATH
"""
old_environ = os.environ.copy()
try:
os.environ['OCRMYPDF_TESSERACT'] = tess4_possible_location()
return tesseract.v4() and tesseract.has_textonly_pdf()
finally:
os.environ = old_environ
def tess4_available():
"""Check if a tesseract 4 binary is available, even if it's not the
official "tesseract" on PATH
"""
try:
# ensure_tess4 locates the tess4 binary we are going to check
env = ensure_tess4()
with modified_os_environ(env):
# Now jump into this environment and make sure it really is Tess4
return tesseract.v4() and tesseract.has_textonly_pdf()
except EnvironmentError:
pass
return False
def tess4_available():
"""Check if a tesseract 4 binary is available, even if it's not the
official "tesseract" on PATH
"""
try:
# ensure_tess4 locates the tess4 binary we are going to check
env = ensure_tess4()
with modified_os_environ(env):
# Now jump into this environment and make sure it really is Tess4
return tesseract.v4() and tesseract.has_textonly_pdf()
except EnvironmentError:
pass
return False
def ensure_tess4():
if tesseract.v4():
# Either "tesseract" on $PATH is already v4, or
# OCRMYPDF_TESSERACT is tess4 already
return os.environ.copy()
if os.environ.get('OCRMYPDF_TESS4'):
# OCRMYPDF_TESS4 is a hint environment variable that tells us to look
# somewhere special for tess4 if and only if we need it. This allows
# setting OCRMYPDF_TESS4 to test tess4 and PATH to point to tess3
# on a system with both installed.
env = os.environ.copy()
env['OCRMYPDF_TESSERACT'] = env['OCRMYPDF_TESS4']
return env
raise EnvironmentError("Can't find Tesseract 4")
def ensure_tess4():
if tesseract.v4():
# Either "tesseract" on $PATH is already v4, or
# OCRMYPDF_TESSERACT is tess4 already
return os.environ.copy()
if os.environ.get('OCRMYPDF_TESS4'):
# OCRMYPDF_TESS4 is a hint environment variable that tells us to look
# somewhere special for tess4 if and only if we need it. This allows
# setting OCRMYPDF_TESS4 to test tess4 and PATH to point to tess3
# on a system with both installed.
env = os.environ.copy()
env['OCRMYPDF_TESSERACT'] = env['OCRMYPDF_TESS4']
return env
raise EnvironmentError("Can't find Tesseract 4")
def _ensure_tess4():
if tesseract.v4():
# "tesseract" on $PATH is already v4
return os.environ.copy()
if os.environ.get('OCRMYPDF_TESS4'):
# OCRMYPDF_TESS4 is a hint environment variable that tells us to look
# somewhere special for tess4 if and only if we need it. This allows
# setting OCRMYPDF_TESS4 to test tess4 and PATH to point to tess3
# on a system with both installed.
env = os.environ.copy()
tess4 = Path(os.environ['OCRMYPDF_TESS4'])
assert tess4.is_file()
env['PATH'] = tess4.parent + ':' + env['PATH']
return env
raise EnvironmentError("Can't find Tesseract 4")
def _ensure_tess4():
if tesseract.v4():
# "tesseract" on $PATH is already v4
return os.environ.copy()
if os.environ.get('OCRMYPDF_TESS4'):
# OCRMYPDF_TESS4 is a hint environment variable that tells us to look
# somewhere special for tess4 if and only if we need it. This allows
# setting OCRMYPDF_TESS4 to test tess4 and PATH to point to tess3
# on a system with both installed.
env = os.environ.copy()
tess4 = Path(os.environ['OCRMYPDF_TESS4'])
assert tess4.is_file()
env['PATH'] = tess4.parent + ':' + env['PATH']
env['OCRMYPDF_TESS4'] = os.environ['OCRMYPDF_TESS4']
return env
raise EnvironmentError("Can't find Tesseract 4")
def test_tesseract_v4():
assert tesseract.v4()
def test_tesseract_config_invalid(renderer, resources, outdir):
cfg_file = outdir / 'test.cfg'
with cfg_file.open('w') as f:
f.write('''\
THIS FILE IS INVALID
''')
p, out, err = run_ocrmypdf(
resources / 'ccitt.pdf', outdir / 'out.pdf',
'--pdf-renderer', renderer,
'--tesseract-config', cfg_file)
assert "parameter not found" in err.lower(), "No error message"
assert p.returncode == ExitCode.invalid_config
@pytest.mark.skipif(tesseract.v4(), reason='arg has no effect in 4.0-beta1')
def test_user_words(resources, outdir):
word_list = outdir / 'wordlist.txt'
sidecar_before = outdir / 'sidecar_before.txt'
sidecar_after = outdir / 'sidecar_after.txt'
# Don't know how to make this test pass on various versions and platforms
# so weaken to merely testing that the argument is accepted
consistent = False
if consistent:
check_ocrmypdf(
resources / 'crom.png', outdir / 'out.pdf',
'--image-dpi', 150,
'--sidecar', sidecar_before
)
#!/usr/bin/env python3
# © 2017 James R. Barlow: github.com/jbarlow83
import pytest
from ocrmypdf.exceptions import ExitCode
from ocrmypdf.exec import tesseract
# Skip all tests in this file if not tesseract 3
pytestmark = pytest.mark.skipif(tesseract.v4(),
reason="tesseract 3.x required")
def test_textonly_pdf_on_tess3(resources, no_outpdf):
p, _, _ = pytest.helpers.run_ocrmypdf(resources / 'linn.pdf', no_outpdf,
'--pdf-renderer', 'tess4')
assert p.returncode == ExitCode.missing_dependency
def test_oem_on_tess3(resources, no_outpdf):
p, _, err = pytest.helpers.run_ocrmypdf(resources / 'aspect.pdf',
no_outpdf, '--tesseract-oem', '1')
assert p.returncode == ExitCode.ok
assert 'argument ignored' in err
# © 2017 James R. Barlow: github.com/jbarlow83
import pytest
from ocrmypdf.exceptions import ExitCode
from ocrmypdf.exec import tesseract
# Skip all tests in this file if not tesseract 3
pytestmark = pytest.mark.skipif(tesseract.v4(),
reason="tesseract 3.x required")
@pytest.mark.skipif(tesseract.has_textonly_pdf(),
reason="check that missing dep is reported on old tess3")
def test_textonly_pdf_on_older_tess3(resources, no_outpdf):
p, _, _ = pytest.helpers.run_ocrmypdf(
resources / 'linn.pdf',
no_outpdf, '--pdf-renderer', 'sandwich')
assert p.returncode == ExitCode.missing_dependency
@pytest.mark.skipif(not tesseract.has_textonly_pdf(),
reason="check that feature is exercised on new test3")
def test_textonly_pdf_on_newer_tess3(resources, no_outpdf):
p, _, _ = pytest.helpers.run_ocrmypdf(
resources / 'linn.pdf',
no_outpdf, '--pdf-renderer', 'sandwich')
assert p.returncode == ExitCode.ok
