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from unittest import TestCase |
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from mock import Mock, sentinel, patch |
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import io, os, shutil |
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class PictureCacheTests(TestCase): |
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def setUp(self): |
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picdir = os.path.expanduser('~/.niprov-snapshots') |
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if os.path.isdir(picdir): |
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shutil.rmtree(picdir) |
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import niprov.pictures |
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niprov.pictures._CACHE = {} # reset cache |
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def test_Serialize(self): |
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from niprov.pictures import PictureCache |
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pictures = PictureCache(sentinel.dependencies) |
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pictures.getFilepath = Mock() |
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fpath = pictures.serializeSingle(sentinel.img) |
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pictures.getFilepath.assert_called_with(for_=sentinel.img) |
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self.assertEqual(pictures.getFilepath(), fpath) |
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def test_Provides_new_picture_file_handle(self): |
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from niprov.pictures import PictureCache |
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pictures = PictureCache(sentinel.dependencies) |
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newPicture = pictures.new() |
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self.assertTrue(hasattr(newPicture, 'write')) |
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29
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View Code Duplication |
def test_Stored_picture_can_be_retrieved_as_filepath(self): |
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from niprov.pictures import PictureCache |
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myImg = Mock() |
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myImg.provenance = {'id':'007'} |
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pictures = PictureCache(sentinel.dependencies) |
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self.assertIsNone(pictures.getFilepath(for_=myImg)) |
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pictures.keep(io.BytesIO('/x10/x05/x5f'), for_=myImg) |
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picfpath = os.path.expanduser('~/.niprov-snapshots/007.png') |
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self.assertEqual(picfpath, pictures.getFilepath(for_=myImg)) |
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def test_Stored_picture_can_be_retrieved_as_bytes(self): |
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from niprov.pictures import PictureCache |
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myImg = Mock() |
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myImg.provenance = {'id':'007'} |
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pictures = PictureCache(sentinel.dependencies) |
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newPicture = pictures.new() |
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newPicture.write('/x10/x05/x5f') |
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pictures.keep(newPicture, for_=myImg) |
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outBytes = pictures.getBytes(for_=myImg) |
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self.assertEqual('/x10/x05/x5f', outBytes) |
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50
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View Code Duplication |
def test_Can_be_told_to_persist_picture_to_disk_now(self): |
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from niprov.pictures import PictureCache |
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myImg = Mock() |
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myImg.provenance = {'id':'007'} |
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pictures = PictureCache(sentinel.dependencies) |
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pictures.saveToDisk(for_=myImg) #shouldn't do anything |
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pictures.keep(io.BytesIO('/x10/x05/x5f'), for_=myImg) |
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pictures.saveToDisk(for_=myImg) |
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picfpath = os.path.expanduser('~/.niprov-snapshots/007.png') |
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self.assertTrue(os.path.isfile(picfpath)) |
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with open(picfpath) as picFile: |
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self.assertEqual(picFile.read(), '/x10/x05/x5f') |
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View Code Duplication |
def test_If_pic_is_not_in_cache_but_on_filesystem_provides_that(self): |
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64
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import niprov.pictures |
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myImg = Mock() |
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myImg.provenance = {'id':'007'} |
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pictures = niprov.pictures.PictureCache(sentinel.dependencies) |
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pictures.keep(io.BytesIO('/x10/x05/x5f'), for_=myImg) |
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pictures.saveToDisk(for_=myImg) |
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niprov.pictures._CACHE = {} # reset cache |
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picfpath = os.path.expanduser('~/.niprov-snapshots/007.png') |
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self.assertEqual(picfpath, pictures.getFilepath(for_=myImg)) |
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ilogue /
niprov
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