jyapayne/glymur
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Tests to error out with read_bands, write without libraries present.

Browse source
This commit is contained in:
John Evans 2013-07-16 07:04:30 -04:00
commit 13ff187fc0
3 changed files with 43 additions and 26 deletions
Download patch file Download diff file Expand all files Collapse all files

7
glymur/jp2k.py
View file

@ -226,6 +226,9 @@ class Jp2k(Jp2kBox):
>>> j = Jp2k(tfile.name, mode='wb')
>>> j.write(data.astype(np.uint8))
"""
if _opj2.OPENJP2 is None:
raise IOError("You must have the development version of OpenJP2 "
"installed before using this functionality.")
cparams = _opj2.set_default_encoder_parameters()
@ -965,8 +968,8 @@ class Jp2k(Jp2kBox):
If the openjp2 library is not available.
"""
if _opj2.OPENJP2 is None:
msg = "Requires openjp2 library."
raise NotImplementedError(msg)
raise IOError("You must have the development version of OpenJP2 "
"installed before using this functionality.")
lst = self._read_common(rlevel=rlevel,
layer=layer,

17
glymur/test/test_config.py
View file

@ -25,23 +25,6 @@ import glymur
from glymur import Jp2k
from glymur.lib import openjp2 as opj2
class TestConfig(unittest.TestCase):
def setUp(self):
self.jp2file = glymur.data.nemo()
def tearDown(self):
pass
def test_read_without_library_backing_us_up(self):
"""Don't have either openjp2 or openjpeg libraries? Must error out.
"""
with patch('glymur.lib.openjp2.OPENJP2', new=None):
with patch('glymur.lib.openjpeg.OPENJPEG', new=None):
with self.assertRaises((IOError, OSError)):
d = glymur.Jp2k(self.jp2file).read()
@unittest.skipIf(sys.hexversion < 0x03020000,
"TemporaryDirectory introduced in 3.2.")
@unittest.skipIf(glymur.lib.openjp2.OPENJP2 is None,

45
glymur/test/test_jp2k.py
View file

@ -47,6 +47,44 @@ def load_tests(loader, tests, ignore):
return tests
class TestConfig(unittest.TestCase):
def setUp(self):
self.jp2file = glymur.data.nemo()
self.j2kfile = glymur.data.goodstuff()
def tearDown(self):
pass
def test_read_without_library_backing_us_up(self):
"""Don't have either openjp2 or openjpeg libraries? Must error out.
"""
with patch('glymur.lib.openjp2.OPENJP2', new=None):
with patch('glymur.lib.openjpeg.OPENJPEG', new=None):
with self.assertRaises((IOError, OSError)):
d = glymur.Jp2k(self.jp2file).read()
def test_read_bands_without_library_backing_us_up(self):
"""Don't have openjp2 library? Must error out.
"""
with patch('glymur.lib.openjp2.OPENJP2', new=None):
with patch('glymur.lib.openjpeg.OPENJPEG', new=None):
with self.assertRaises((IOError, OSError)):
d = glymur.Jp2k(self.jp2file).read_bands()
@unittest.skipIf(os.name == "nt", "NamedTemporaryFile issue on windows")
def test_write_without_library_backing_us_up(self):
"""Don't have openjp2 library? Must error out.
"""
data = glymur.Jp2k(self.j2kfile).read()
with patch('glymur.lib.openjp2.OPENJP2', new=None):
with patch('glymur.lib.openjpeg.OPENJPEG', new=None):
with self.assertRaises((IOError, OSError)):
with tempfile.NamedTemporaryFile(suffix='.jp2') as tfile:
ofile = Jp2k(tfile.name, 'wb')
ofile.write(data)
@unittest.skipIf(os.name == "nt", "NamedTemporaryFile issue on windows")
@unittest.skipIf(glymur.lib.openjp2.OPENJP2 is None,
"Missing openjp2 library.")
@ -713,13 +751,6 @@ class TestJp2k15(unittest.TestCase):
def tearDown(self):
pass
def test_bands(self):
"""Reading individual bands is an advanced maneuver.
"""
jp2k = Jp2k(self.j2kfile)
with self.assertRaises(NotImplementedError):
jp2k.read_bands()
def test_area(self):
"""Area option not allowed for 1.5.1.
"""