157
157
tree.commit('first commit')
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161
except errors.UnsupportedOperation:
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162
raise TestSkipped('Format does not support destroying tree')
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163
self.failIfExists('tree/file')
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164
self.assertRaises(errors.NoWorkingTree, bzrdir.open_workingtree)
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165
bzrdir.create_workingtree()
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166
self.failUnlessExists('tree/file')
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168
self.failUnlessExists('tree/file')
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169
self.assertRaises(errors.NoWorkingTree, bzrdir.open_workingtree)