def test_request_read_sources():
# Make an image available in many ways
fname = 'images/chelsea.png'
filename = get_remote_file(fname, test_dir)
bytes = open(filename, 'rb').read()
#
burl = 'https://raw.githubusercontent.com/imageio/imageio-binaries/master/'
z = ZipFile(os.path.join(test_dir, 'test.zip'), 'w')
z.writestr(fname, bytes)
z.close()
file = open(filename, 'rb')
# Read that image from these different sources. Read data from file
# and from local file (the two main plugin-facing functions)
for uri in (filename,
os.path.join(test_dir, 'test.zip', fname),
bytes,
file,
burl + fname):
# Init
firsbytes_list, bytes_list = [], []
# Via file
R = Request(uri, 'ri')
firsbytes_list.append(R.firstbytes)
bytes_list.append(R.get_file().read())
R.finish()
# Via local filename
R = Request(uri, 'ri')
firsbytes_list.append(R.firstbytes)
f = open(R.get_local_filename(), 'rb')
bytes_list.append(f.read())
R.finish()
# Test repeated
if uri == filename:
bytes_list.append(R.get_file().read())
f = open(R.get_local_filename(), 'rb')
bytes_list.append(f.read())
R.finish()
# Test
for i in range(len(firsbytes_list)):
assert len(firsbytes_list[i]) > 0
assert bytes.startswith(firsbytes_list[i])
for i in range(len(bytes_list)):
assert bytes == bytes_list[i]
def test_request_read_sources():
# Make an image available in many ways
fname = 'images/chelsea.png'
filename = get_remote_file(fname, test_dir)
bytes = open(filename, 'rb').read()
#
burl = 'https://raw.githubusercontent.com/imageio/imageio-binaries/master/'
z = ZipFile(os.path.join(test_dir, 'test.zip'), 'w')
z.writestr(fname, bytes)
z.close()
file = open(filename, 'rb')
# Read that image from these different sources. Read data from file
# and from local file (the two main plugin-facing functions)
for uri in (filename,
os.path.join(test_dir, 'test.zip', fname),
bytes,
file,
burl + fname):
# Init
firsbytes_list, bytes_list = [], []
# Via file
R = Request(uri, 'ri')
firsbytes_list.append(R.firstbytes)
bytes_list.append(R.get_file().read())
R.finish()
# Via local filename
R = Request(uri, 'ri')
firsbytes_list.append(R.firstbytes)
f = open(R.get_local_filename(), 'rb')
bytes_list.append(f.read())
R.finish()
# Test repeated
if uri == filename:
bytes_list.append(R.get_file().read())
f = open(R.get_local_filename(), 'rb')
bytes_list.append(f.read())
R.finish()
# Test
for i in range(len(firsbytes_list)):
assert len(firsbytes_list[i]) > 0
assert bytes.startswith(firsbytes_list[i])
for i in range(len(bytes_list)):
assert bytes == bytes_list[i]
def test_request_save_sources():
# Get test data
fname = "images/chelsea.png"
filename = get_remote_file(fname, test_dir)
with open(filename, "rb") as f:
bytes = f.read()
assert len(bytes) > 0
# Prepare destinations
fname2 = fname + ".out"
filename2 = os.path.join(test_dir, fname2)
zipfilename2 = os.path.join(test_dir, "test2.zip")
file2 = None
# Write an image into many different destinations
# Do once via file and ones via local filename
for file_or_filename in range(2):
# Clear destinations
for xx in (filename2, zipfilename2):
if os.path.isfile(xx):
os.remove(xx)
file2 = BytesIO()
# Write to four destinations
for uri in (
filename2,
os.path.join(zipfilename2, fname2),
file2,
imageio.RETURN_BYTES, # This one last to fill `res`
):
R = Request(uri, "wi")
if file_or_filename == 0:
R.get_file().write(bytes) # via file
else:
with open(R.get_local_filename(), "wb") as f:
f.write(bytes) # via local
R.finish()
res = R.get_result()
# Test four results
with open(filename2, "rb") as f:
assert f.read() == bytes
with ZipFile(zipfilename2, "r") as zf:
assert zf.open(fname2).read() == bytes
assert file2.getvalue() == bytes
assert res == bytes
def test_request_save_sources():
# Get test data
fname = "images/chelsea.png"
filename = get_remote_file(fname, test_dir)
with open(filename, "rb") as f:
bytes = f.read()
assert len(bytes) > 0
# Prepare destinations
fname2 = fname + ".out"
filename2 = os.path.join(test_dir, fname2)
zipfilename2 = os.path.join(test_dir, "test2.zip")
file2 = None
# Write an image into many different destinations
# Do once via file and ones via local filename
for file_or_filename in range(2):
# Clear destinations
for xx in (filename2, zipfilename2):
if os.path.isfile(xx):
os.remove(xx)
file2 = BytesIO()
# Write to four destinations
for uri in (
filename2,
os.path.join(zipfilename2, fname2),
file2,
imageio.RETURN_BYTES, # This one last to fill `res`
):
R = Request(uri, "wi")
if file_or_filename == 0:
R.get_file().write(bytes) # via file
else:
with open(R.get_local_filename(), "wb") as f:
f.write(bytes) # via local
R.finish()
res = R.get_result()
# Test four results
with open(filename2, "rb") as f:
assert f.read() == bytes
with ZipFile(zipfilename2, "r") as zf:
assert zf.open(fname2).read() == bytes
assert file2.getvalue() == bytes
assert res == bytes
def test_request_read_sources():
# Make an image available in many ways
fname = "images/chelsea.png"
filename = get_remote_file(fname, test_dir)
bytes = open(filename, "rb").read()
#
burl = "https://raw.githubusercontent.com/imageio/imageio-binaries/master/"
zipfilename = os.path.join(test_dir, "test1.zip")
with ZipFile(zipfilename, "w") as zf:
zf.writestr(fname, bytes)
has_inet = os.getenv("IMAGEIO_NO_INTERNET", "") not in ("1", "yes", "true")
# Read that image from these different sources. Read data from file
# and from local file (the two main plugin-facing functions)
for file_or_filename in range(2):
for check_first_bytes in range(2):
# Define uris to test. Define inside loop, since we need fresh files
uris = [
filename,
os.path.join(zipfilename, fname),
bytes,
memoryview(bytes),
open(filename, "rb"),
]
if has_inet:
uris.append(burl + fname)
for uri in uris:
R = Request(uri, "ri")
if check_first_bytes:
first_bytes = R.firstbytes
if file_or_filename == 0:
all_bytes = R.get_file().read()
else:
with open(R.get_local_filename(), "rb") as f:
all_bytes = f.read()
R.finish()
assert bytes == all_bytes
if check_first_bytes:
assert len(first_bytes) > 0
assert all_bytes.startswith(first_bytes)
def test_request_read_sources():
# Make an image available in many ways
fname = "images/chelsea.png"
filename = get_remote_file(fname, test_dir)
bytes = open(filename, "rb").read()
#
burl = "https://raw.githubusercontent.com/imageio/imageio-binaries/master/"
zipfilename = os.path.join(test_dir, "test1.zip")
with ZipFile(zipfilename, "w") as zf:
zf.writestr(fname, bytes)
has_inet = os.getenv("IMAGEIO_NO_INTERNET", "") not in ("1", "yes", "true")
# Read that image from these different sources. Read data from file
# and from local file (the two main plugin-facing functions)
for file_or_filename in range(2):
for check_first_bytes in range(2):
# Define uris to test. Define inside loop, since we need fresh files
uris = [
filename,
os.path.join(zipfilename, fname),
bytes,
memoryview(bytes),
open(filename, "rb"),
]
if has_inet:
uris.append(burl + fname)
for uri in uris:
R = Request(uri, "ri")
if check_first_bytes:
first_bytes = R.firstbytes
if file_or_filename == 0:
all_bytes = R.get_file().read()
else:
with open(R.get_local_filename(), "rb") as f:
all_bytes = f.read()
R.finish()
assert bytes == all_bytes
if check_first_bytes:
assert len(first_bytes) > 0
assert all_bytes.startswith(first_bytes)
def test_request_read_sources(test_images, tmp_userdir):
# Make an image available in many ways
fname = "chelsea.png"
filename = test_images / fname
bytes = open(str(filename), "rb").read()
#
burl = "https://raw.githubusercontent.com/imageio/test_images/master/"
zipfilename = tmp_userdir / "test1.zip"
with ZipFile(zipfilename, "w") as zf:
zf.writestr(fname, bytes)
# Read that image from these different sources. Read data from file
# and from local file (the two main plugin-facing functions)
for file_or_filename in range(2):
for check_first_bytes in range(2):
# Define uris to test. Define inside loop, since we need fresh files
uris = [
filename,
os.path.join(zipfilename, fname),
bytes,
memoryview(bytes),
open(filename, "rb"),
]
uris.append(burl + fname)
for uri in uris:
R = Request(uri, "ri")
if check_first_bytes:
first_bytes = R.firstbytes
if file_or_filename == 0:
all_bytes = R.get_file().read()
else:
with open(R.get_local_filename(), "rb") as f:
all_bytes = f.read()
R.finish()
assert bytes == all_bytes
if check_first_bytes:
assert len(first_bytes) > 0
assert all_bytes.startswith(first_bytes)
def test_request_read_sources():
# Make an image available in many ways
fname = 'images/chelsea.png'
filename = get_remote_file(fname, test_dir)
bytes = open(filename, 'rb').read()
#
burl = 'https://raw.githubusercontent.com/imageio/imageio-binaries/master/'
z = ZipFile(os.path.join(test_dir, 'test.zip'), 'w')
z.writestr(fname, bytes)
z.close()
has_inet = os.getenv('IMAGEIO_NO_INTERNET', '') not in ('1', 'yes', 'true')
# Read that image from these different sources. Read data from file
# and from local file (the two main plugin-facing functions)
for X in range(2):
# Define uris to test. Define inside loop, since we need fresh files
uris = [
filename,
os.path.join(test_dir, 'test.zip', fname), bytes,
open(filename, 'rb')
]
if has_inet:
uris.append(burl + fname)
for uri in uris:
R = Request(uri, 'ri')
first_bytes = R.firstbytes
if X == 0:
all_bytes = R.get_file().read()
else:
f = open(R.get_local_filename(), 'rb')
all_bytes = f.read()
R.finish()
# Test
assert len(first_bytes) > 0
assert all_bytes.startswith(first_bytes)
assert bytes == all_bytes
def test_request_read_sources():
# Make an image available in many ways
fname = 'images/chelsea.png'
filename = get_remote_file(fname, test_dir)
bytes = open(filename, 'rb').read()
#
burl = 'https://raw.githubusercontent.com/imageio/imageio-binaries/master/'
z = ZipFile(os.path.join(test_dir, 'test.zip'), 'w')
z.writestr(fname, bytes)
z.close()
has_inet = os.getenv('IMAGEIO_NO_INTERNET', '') not in ('1', 'yes', 'true')
# Read that image from these different sources. Read data from file
# and from local file (the two main plugin-facing functions)
for X in range(2):
# Define uris to test. Define inside loop, since we need fresh files
uris = [filename,
os.path.join(test_dir, 'test.zip', fname),
bytes,
open(filename, 'rb')]
if has_inet:
uris.append(burl + fname)
for uri in uris:
R = Request(uri, 'ri')
first_bytes = R.firstbytes
if X == 0:
all_bytes = R.get_file().read()
else:
f = open(R.get_local_filename(), 'rb')
all_bytes = f.read()
R.finish()
# Test
assert len(first_bytes) > 0
assert all_bytes.startswith(first_bytes)
assert bytes == all_bytes
def test_request_save_sources():
# Prepare desinations
fname = 'images/chelsea.png'
filename = get_remote_file(fname, test_dir)
bytes = open(filename, 'rb').read()
#
fname2 = fname + '.out'
filename2 = os.path.join(test_dir, fname2)
zipfilename2 = os.path.join(test_dir, 'test.zip')
file2 = BytesIO()
# Write an image into many different destinations
# Do once via file and ones via local filename
for i in range(2):
# Clear
for xx in (filename2, zipfilename2):
if os.path.isfile(xx):
os.remove(xx)
# Write to three destinations
for uri in (
filename2,
os.path.join(zipfilename2, fname2),
file2,
imageio.RETURN_BYTES # This one last to fill `res`
):
R = Request(uri, 'wi')
if i == 0:
R.get_file().write(bytes) # via file
else:
open(R.get_local_filename(), 'wb').write(bytes) # via local
R.finish()
res = R.get_result()
# Test three results
assert open(filename2, 'rb').read() == bytes
assert ZipFile(zipfilename2, 'r').open(fname2).read() == bytes
assert res == bytes
def test_request_save_sources():
# Prepare desinations
fname = 'images/chelsea.png'
filename = get_remote_file(fname, test_dir)
bytes = open(filename, 'rb').read()
#
fname2 = fname + '.out'
filename2 = os.path.join(test_dir, fname2)
zipfilename2 = os.path.join(test_dir, 'test.zip')
file2 = BytesIO()
# Write an image into many different destinations
# Do once via file and ones via local filename
for i in range(2):
# Clear
for xx in (filename2, zipfilename2):
if os.path.isfile(xx):
os.remove(xx)
# Write to three destinations
for uri in (filename2,
os.path.join(zipfilename2, fname2),
file2,
imageio.RETURN_BYTES # This one last to fill `res`
):
R = Request(uri, 'wi')
if i == 0:
R.get_file().write(bytes) # via file
else:
open(R.get_local_filename(), 'wb').write(bytes) # via local
R.finish()
res = R.get_result()
# Test three results
assert open(filename2, 'rb').read() == bytes
assert ZipFile(zipfilename2, 'r').open(fname2).read() == bytes
assert res == bytes
def test_request():
""" Test request object """
# Check uri-type, this is not a public property, so we test the private
R = Request('http://example.com', 'ri')
assert R._uri_type == core.request.URI_HTTP
R = Request('ftp://example.com', 'ri')
assert R._uri_type == core.request.URI_FTP
R = Request('file://example.com', 'wi')
assert R._uri_type == core.request.URI_FILENAME
R = Request('<video0>', 'rI')
assert R._uri_type == core.request.URI_BYTES
R = Request(imageio.RETURN_BYTES, 'wi')
assert R._uri_type == core.request.URI_BYTES
#
fname = get_remote_file('images/chelsea.png', test_dir)
R = Request(fname, 'ri')
assert R._uri_type == core.request.URI_FILENAME
R = Request('/file/that/does/not/exist', 'wi')
assert R._uri_type == core.request.URI_FILENAME # Too short to be bytes
R = Request(b'x'*600, 'ri')
assert R._uri_type == core.request.URI_BYTES
R = Request(sys.stdin, 'ri')
assert R._uri_type == core.request.URI_FILE
R = Request(sys.stdout, 'wi')
assert R._uri_type == core.request.URI_FILE
# exapand user dir
R = Request('~/foo', 'wi')
assert R.filename == os.path.expanduser('~/foo')
# zip file
R = Request('/foo/bar.zip/spam.png', 'wi')
assert R._uri_type == core.request.URI_ZIPPED
# Test failing inits
raises(ValueError, Request, '/some/file', None) # mode must be str
raises(ValueError, Request, '/some/file', 3) # mode must be str
raises(ValueError, Request, '/some/file', '') # mode must be len 2
raises(ValueError, Request, '/some/file', 'r') # mode must be len 2
raises(ValueError, Request, '/some/file', 'rii') # mode must be len 2
raises(ValueError, Request, '/some/file', 'xi') # mode[0] must be in rw
raises(ValueError, Request, '/some/file', 'rx') # mode[1] must be in iIvV?
#
raises(IOError, Request, ['invalid', 'uri'] * 10, 'ri') # invalid uri
raises(IOError, Request, 4, 'ri') # invalid uri
raises(IOError, Request, '/does/not/exist', 'ri') # reading nonexistent
raises(IOError, Request, '/does/not/exist.zip/spam.png', 'ri') # dito
raises(IOError, Request, 'http://example.com', 'wi') # no writing here
# Test auto-download
R = Request('chelsea.png', 'ri')
assert R.filename == get_remote_file('images/chelsea.png')
R = Request('chelsea.zip/chelsea.png', 'ri')
assert R._filename_zip[0] == get_remote_file('images/chelsea.zip')
assert R.filename == get_remote_file('images/chelsea.zip') + '/chelsea.png'
# Make an image available in many ways
burl = 'https://raw.githubusercontent.com/imageio/imageio-binaries/master/'
fname = 'images/chelsea.png'
filename = get_remote_file(fname, test_dir)
bytes = open(filename, 'rb').read()
z = ZipFile(os.path.join(test_dir, 'test.zip'), 'w')
z.writestr(fname, bytes)
z.close()
file = open(filename, 'rb')
# Read that image from these different sources. Read data from file
# and from local file (the two main plugin-facing functions)
for uri in (filename,
os.path.join(test_dir, 'test.zip', fname),
bytes,
file,
burl + fname):
# Init
firsbytes_list, bytes_list = [], []
# Via file
R = Request(uri, 'ri')
firsbytes_list.append(R.firstbytes)
bytes_list.append(R.get_file().read())
R.finish()
# Via local filename
R = Request(uri, 'ri')
firsbytes_list.append(R.firstbytes)
f = open(R.get_local_filename(), 'rb')
bytes_list.append(f.read())
R.finish()
# Test repeated
if uri == filename:
bytes_list.append(R.get_file().read())
f = open(R.get_local_filename(), 'rb')
bytes_list.append(f.read())
R.finish()
# Test
for i in range(len(firsbytes_list)):
assert len(firsbytes_list[i]) > 0
assert bytes.startswith(firsbytes_list[i])
for i in range(len(bytes_list)):
assert bytes == bytes_list[i]
# Prepare desinations
fname2 = fname + '.out'
filename2 = os.path.join(test_dir, fname2)
zipfilename2 = os.path.join(test_dir, 'test.zip')
file2 = BytesIO()
# Write an image into many different destinations
# Do once via file and ones via local filename
for i in range(2):
# Clear
for xx in (filename2, zipfilename2):
if os.path.isfile(xx):
os.remove(xx)
# Write to three destinations
for uri in (filename2,
os.path.join(zipfilename2, fname2),
file2,
imageio.RETURN_BYTES # This one last to fill `res`
):
R = Request(uri, 'wi')
if i == 0:
R.get_file().write(bytes) # via file
else:
open(R.get_local_filename(), 'wb').write(bytes) # via local
R.finish()
res = R.get_result()
# Test three results
assert open(filename2, 'rb').read() == bytes
assert ZipFile(zipfilename2, 'r').open(fname2).read() == bytes
assert res == bytes