本文整理汇总了Python中gridfs.grid_file.GridFile类的典型用法代码示例。如果您正苦于以下问题：Python GridFile类的具体用法？Python GridFile怎么用？Python GridFile使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了GridFile类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_create_grid_file
def test_create_grid_file(self):
self.db.fs.files.remove({})
self.db.fs.chunks.remove({})
# just write a blank file so that reads on {} don't fail
file = GridFile({"filename": "test"}, self.db, "w")
file.close()
self.assertRaises(TypeError, GridFile, "hello", self.db)
self.assertRaises(TypeError, GridFile, None, self.db)
self.assertRaises(TypeError, GridFile, 5, self.db)
self.assertRaises(TypeError, GridFile, {}, "hello")
self.assertRaises(TypeError, GridFile, {}, None)
self.assertRaises(TypeError, GridFile, {}, 5)
GridFile({}, self.db).close()
self.assertRaises(TypeError, GridFile, {}, self.db, None)
self.assertRaises(TypeError, GridFile, {}, self.db, 5)
self.assertRaises(TypeError, GridFile, {}, self.db, [])
self.assertRaises(ValueError, GridFile, {}, self.db, "m")
self.assertRaises(ValueError, GridFile, {}, self.db, u"m")
GridFile({}, self.db, "r").close()
GridFile({}, self.db, u"r").close()
GridFile({}, self.db, "w").close()
GridFile({}, self.db, u"w").close()
self.assertRaises(TypeError, GridFile, {}, self.db, "r", None)
self.assertRaises(TypeError, GridFile, {}, self.db, "r", 5)
self.assertRaises(TypeError, GridFile, {}, self.db, "r", [])
self.assertRaises(IOError, GridFile, {"filename": "mike"}, self.db)
GridFile({"filename": "test"}, self.db).close()示例2: test_properties
def test_properties(self):
self.db.fs.files.remove({})
self.db.fs.chunks.remove({})
file = GridFile({"filename": "test"}, self.db, "w")
self.assertEqual(file.mode, "w")
self.failIf(file.closed)
file.close()
self.assert_(file.closed)
self.assertRaises(IOError, GridFile, {"filename": "mike"}, self.db)
a = GridFile({"filename": "test"}, self.db)
self.assertEqual(a.mode, "r")
self.failIf(a.closed)
self.assertEqual(a.length, 0)
self.assertEqual(a.content_type, None)
self.assertEqual(a.name, "test")
self.assertEqual(a.chunk_size, 256000)
self.assert_(isinstance(a.upload_date, datetime.datetime))
self.assertEqual(a.aliases, None)
self.assertEqual(a.metadata, None)
self.assertEqual(a.md5, "d41d8cd98f00b204e9800998ecf8427e")
a.content_type = "something"
self.assertEqual(a.content_type, "something")
def set_length():
a.length = 10
self.assertRaises(AttributeError, set_length)
def set_chunk_size():
a.chunk_size = 100
self.assertRaises(AttributeError, set_chunk_size)
def set_upload_date():
a.upload_date = datetime.datetime.utcnow()
self.assertRaises(AttributeError, set_upload_date)
a.aliases = ["hello", "world"]
self.assertEqual(a.aliases, ["hello", "world"])
a.metadata = {"something": "else"}
self.assertEqual(a.metadata, {"something": "else"})
def set_name():
a.name = "hello"
self.assertRaises(AttributeError, set_name)
def set_md5():
a.md5 = "what"
self.assertRaises(AttributeError, set_md5)
a.close()示例3: test_md5
def test_md5(self):
file = GridFile({"filename": "test"}, self.db, "w")
file.write("hello world\n")
file.close()
file = GridFile({"filename": "test"}, self.db)
self.assertEqual(file.md5, "6f5902ac237024bdd0c176cb93063dc4")
file.close()示例4: test_modes
def test_modes(self):
self.db.fs.files.remove({})
self.db.fs.chunks.remove({})
file = GridFile({"filename": "test"}, self.db, "w")
self.assertRaises(ValueError, file.read)
file.write("hello")
file.close()
self.assertRaises(ValueError, file.read)
self.assertRaises(ValueError, file.write, "hello")
file = GridFile({"filename": "test"}, self.db, "r")
self.assertRaises(ValueError, file.write, "hello")
file.read()
file.close()
self.assertRaises(ValueError, file.read)
self.assertRaises(ValueError, file.write, "hello")示例5: test_multi_chunk_file
def test_multi_chunk_file(self):
self.db.fs.files.remove({})
self.db.fs.chunks.remove({})
random_string = qcheck.gen_string(qcheck.lift(300000))()
file = GridFile({"filename": "test"}, self.db, "w")
file.write(random_string)
file.close()
self.assertEqual(self.db.fs.files.find().count(), 1)
self.assertEqual(self.db.fs.chunks.find().count(), 2)
f = GridFile({}, self.db)
self.assertEqual(f.read(), random_string)
f.close()示例6: test_read_chunks_unaligned_buffer_size
def test_read_chunks_unaligned_buffer_size(self):
self.db.fs.files.remove({})
self.db.fs.chunks.remove({})
in_data = "This is a text that doesn't quite fit in a single 16-byte chunk."
f = GridFile({"filename":"test", "chunkSize":16}, self.db, "w")
f.write(in_data)
f.close()
f = GridFile({"filename":"test"}, self.db)
out_data = ''
while 1:
s = f.read(13)
if not s:
break
out_data += s
f.close()
self.assertEqual(in_data, out_data)示例7: test_rename
def test_rename(self):
self.db.fs.files.remove({})
self.db.fs.chunks.remove({})
file = GridFile({"filename": "test"}, self.db, "w")
file.close()
self.assertRaises(IOError, GridFile, {"filename": "mike"}, self.db)
a = GridFile({"filename": "test"}, self.db)
a.rename("mike")
self.assertEqual("mike", a.name)
a.close()
self.assertRaises(IOError, GridFile, {"filename": "test"}, self.db)
GridFile({"filename": "mike"}, self.db).close()示例8: remove
def remove(self, filename_or_spec, collection="fs"):
"""Remove one or more :class:`~gridfs.grid_file.GridFile`
instances.
Can remove by filename, or by an entire file spec (see
:meth:`~gridfs.grid_file.GridFile` for documentation on valid
fields. Delete all :class:`~gridfs.grid_file.GridFile`
instances that match `filename_or_spec`. Raises
:class:`TypeError` if `filename_or_spec` is not an instance of
(:class:`basestring`, :class:`dict`,
:class:`~pymongo.son.SON`) or collection is not an instance of
:class:`basestring`.
:Parameters:
- `filename_or_spec`: identifier of file(s) to remove
- `collection` (optional): root collection where this file is located
"""
spec = filename_or_spec
if isinstance(filename_or_spec, basestring):
spec = {"filename": filename_or_spec}
if not isinstance(spec, dict):
raise TypeError("filename_or_spec must be an "
"instance of (basestring, dict, SON)")
if not isinstance(collection, basestring):
raise TypeError("collection must be an instance of basestring")
# convert to _id's so we can uniquely create GridFile instances
ids = []
for grid_file in self.__database[collection].files.find(spec):
ids.append(grid_file["_id"])
# open for writing to remove the chunks for these files
for file_id in ids:
f = GridFile({"_id": file_id}, self.__database, "w", collection)
f.close()
self.__database[collection].files.remove(spec)示例9: test_spec_with_id
def test_spec_with_id(self):
# This was raising a TypeError at one point - make sure it doesn't
file = GridFile({"_id": "foobar", "filename": "foobar"}, self.db, "w")
file.close()示例10: test_multiple_reads
def test_multiple_reads(self):
self.db.fs.files.remove({})
self.db.fs.chunks.remove({})
file = GridFile({"filename": "test"}, self.db, "w")
file.write("hello world")
file.close()
file = GridFile({"filename": "test"}, self.db, "r")
self.assertEqual(file.read(2), "he")
self.assertEqual(file.read(2), "ll")
self.assertEqual(file.read(2), "o ")
self.assertEqual(file.read(2), "wo")
self.assertEqual(file.read(2), "rl")
self.assertEqual(file.read(2), "d")
self.assertEqual(file.read(2), "")
file.close()示例11: test_tell
def test_tell(self):
self.db.fs.files.remove({})
self.db.fs.chunks.remove({})
file = GridFile({"filename": "test", "chunkSize": 3}, self.db, "w")
file.write("hello world")
self.assertRaises(ValueError, file.tell)
file.close()
file = GridFile({"filename": "test"}, self.db, "r")
self.assertEqual(file.tell(), 0)
file.read(0)
self.assertEqual(file.tell(), 0)
file.read(1)
self.assertEqual(file.tell(), 1)
file.read(2)
self.assertEqual(file.tell(), 3)
file.read()
self.assertEqual(file.tell(), file.length)
file.close()示例12: test_basic
def test_basic(self):
self.db.fs.files.remove({})
self.db.fs.chunks.remove({})
self.assertEqual(self.db.fs.files.find().count(), 0)
self.assertEqual(self.db.fs.chunks.find().count(), 0)
file = GridFile({"filename": "test"}, self.db, "w")
file.write("hello world")
file.close()
self.assertEqual(self.db.fs.files.find().count(), 1)
self.assertEqual(self.db.fs.chunks.find().count(), 1)
file = GridFile({"filename": "test"}, self.db)
self.assertEqual(file.read(), "hello world")
file.close()
# make sure it's still there...
file = GridFile({"filename": "test"}, self.db)
self.assertEqual(file.read(), "hello world")
file.close()
file = GridFile({"filename": "test"}, self.db, "w")
file.close()
self.assertEqual(self.db.fs.files.find().count(), 1)
self.assertEqual(self.db.fs.chunks.find().count(), 0)
file = GridFile({"filename": "test"}, self.db)
self.assertEqual(file.read(), "")
file.close()示例13: test_seek
def test_seek(self):
self.db.fs.files.remove({})
self.db.fs.chunks.remove({})
file = GridFile({"filename": "test", "chunkSize": 3}, self.db, "w")
file.write("hello world")
self.assertRaises(ValueError, file.seek, 0)
file.close()
file = GridFile({"filename": "test"}, self.db, "r")
self.assertEqual(file.read(), "hello world")
file.seek(0)
self.assertEqual(file.read(), "hello world")
file.seek(1)
self.assertEqual(file.read(), "ello world")
self.assertRaises(IOError, file.seek, -1)
file.seek(-3, _SEEK_END)
self.assertEqual(file.read(), "rld")
file.seek(0, _SEEK_END)
self.assertEqual(file.read(), "")
self.assertRaises(IOError, file.seek, -100, _SEEK_END)
file.seek(3)
file.seek(3, _SEEK_CUR)
self.assertEqual(file.read(), "world")
self.assertRaises(IOError, file.seek, -100, _SEEK_CUR)
file.close()示例14: test_overwrite
def test_overwrite(self):
self.db.fs.files.remove({})
self.db.fs.chunks.remove({})
file = GridFile({"filename": "test"}, self.db, "w")
file.write("test")
file.close()
file = GridFile({"filename": "test"}, self.db, "w")
file.write("mike")
file.close()
f = GridFile({}, self.db)
self.assertEqual(f.read(), "mike")
f.close()示例15: test_flush_close
def test_flush_close(self):
self.db.fs.files.remove({})
self.db.fs.chunks.remove({})
file = GridFile({"filename": "test"}, self.db, "w")
file.flush()
file.close()
file.close()
self.assertRaises(ValueError, file.write, "test")
file = GridFile({}, self.db)
self.assertEqual(file.read(), "")
file.close()
file = GridFile({"filename": "test"}, self.db, "w")
file.write("mike")
file.flush()
file.write("test")
file.flush()
file.write("huh")
file.flush()
file.flush()
file.close()
file.close()
self.assertRaises(ValueError, file.write, "test")
file = GridFile({}, self.db)
self.assertEqual(file.read(), "miketesthuh")
file.close()