def test_od_oi(self):
"""
A past opperations is an object delete which gets applied to this
object insert.
"""
array_path = ['a', 'b', 3, 4]
op1 = Op('od', array_path, offset='X')
cs1 = Changeset('doc_id', 'author', [])
cs1.add_op(op1)
# op2 happens at a different path, so should not be affected
op2 = Op('oi', ['a', 'b', 3, 5], offset='Y', val=['XYZ'])
op2.ot(cs1)
assert op2.t_path == ['a', 'b', 3, 5]
assert op2.t_offset == 'Y'
assert op2.t_val == ['XYZ']
assert not op2.is_noop()
op1.hazards = []
# op3 happens at path, but differant offset, no change
op3 = Op('oi', array_path, offset='W', val=['XYZ'])
op3.ot(cs1)
assert op3.t_path == array_path
assert op3.t_offset == 'W'
assert not op3.is_noop()
op1.hazards = []
# op4 happens within deletion
op4_path = array_path + ['X']
op4 = Op('oi', op4_path, offset='R', val=['XYZ'])
op4.ot(cs1)
assert op4.is_noop()
op1.hazards = []
# op5 inserts right where there was a deletion. Some previous conflict,
# so noop
op5 = Op('oi', array_path, offset='X', val='XYZ')
op5.ot(cs1)
assert op5.t_path == array_path
assert op5.t_offset == 'X'
assert op5.t_val == 'XYZ'
assert op5.is_noop()
op1.hazards = []
# op6 is at a partial path along deletion, no change
op6_path = ['a']
op6 = Op('oi', op6_path, offset='c', val=['XYZ'])
op6.ot(cs1)
assert op6.t_path == ['a']
assert op6.t_offset == 'c'
assert op6.t_val == ['XYZ']
assert not op6.is_noop()
op1.hazards = []
def test_oi_oi(self):
"""
A past opperation is an Object insert which gets applied to this object
insert. The only opportunity for conflict is if the later insert
happens along a path that is no longer valid.
"""
array_path = ['a', 'b', 3, 4]
op1 = Op('oi', array_path, offset='X', val=['Y', 'Z'])
cs1 = Changeset('doc_id', 'author', [])
cs1.add_op(op1)
# op2 happens at a different path, so should not be affected
op2 = Op('oi', ['a', 'b', 3, 5], offset='c', val=["XYZ"])
op2.ot(cs1)
assert op2.t_path == ['a', 'b', 3, 5]
op1.hazards = []
# op3 happens along path, so it will just overwrite past data
op3 = Op('oi', ['a'], offset='b', val="XYZ")
op3.ot(cs1)
assert op3.t_path == ['a']
assert op3.t_offset == 'b'
assert op3.t_val == 'XYZ'
op1.hazards = []
# op4 is at same path, different offset, so no conflict
op4 = Op('oi', array_path, offset='W', val="WWW")
op4.ot(cs1)
assert op4.t_path == array_path
assert op4.t_offset == 'W'
assert op4.t_val == 'WWW'
assert not op4.is_noop()
op1.hazards = []
# op5 is at same path and offset, so previous op takes precedence
op5 = Op('oi', array_path, offset='X', val=["XXX"])
op5.ot(cs1)
assert op5.t_path == array_path
assert op5.t_offset == 'X'
assert op5.t_val == ['XXX']
assert op5.is_noop()
op1.hazards = []
# op6 path is deep within a previous object insert
op6_path = array_path + ['X', 9, 'c']
op6 = Op('oi', op6_path, offset=8, val=["XYZ"])
op6.ot(cs1)
assert op6.is_noop()
op1.hazards = []
def test_oi_od(self):
"""
A past opperation is an object insert which gets applied to these
object deletes.
"""
array_path = ['a', 'b', 3, 4]
op1 = Op('oi', array_path, offset='X', val=['X', 'Y'])
cs1 = Changeset('doc_id', 'author', [])
cs1.add_op(op1)
# op2 happens at a different path, so should not be affected
op2 = Op('od', ['a', 'b', 3, 5], offset='R')
op2.ot(cs1)
assert op2.t_path == ['a', 'b', 3, 5]
assert op2.t_offset == 'R'
assert not op2.is_noop()
op1.hazards = []
# op3 deletes a key were unknown op had inserted one. Could not have
# intended to delete what it did not know, so noop
op3 = Op('od', array_path, offset='X')
op3.ot(cs1)
assert op3.t_path == array_path
assert op3.t_offset == 'X'
assert op3.is_noop()
op1.hazards = []
# same as above, but well within the inserted value
op4_path = array_path + ['X']
op4 = Op('od', op4_path, offset='Y')
op4.ot(cs1)
assert op4.t_path == array_path + ['X']
assert op4.t_offset == 'Y'
assert op4.is_noop()
op1.hazards = []
# op5 is at same path, differant offset. No change
op5 = Op('od', array_path, offset='R')
op5.ot(cs1)
assert op5.t_path == array_path
assert op5.t_offset == 'R'
assert not op5.is_noop()
op1.hazards = []
# op6 is at shorter path. No change
op6 = Op('od', ['a'], offset='c')
op6.ot(cs1)
assert op6.t_path == ['a']
assert op6.t_offset == 'c'
assert not op6.is_noop()
op1.hazards = []
# op7 deletes whatever was previously changed
op7 = Op('od', ['a'], offset='b')
op7.ot(cs1)
assert op7.t_path == ['a']
assert op7.t_offset == 'b'
assert not op7.is_noop()
op1.hazards = []
def test_od_od(self):
"""
A past opperation is an object delete which gets applied to these
object deletes.
"""
array_path = ['a', 'b', 3, 4]
op1 = Op('od', array_path, offset='X')
cs1 = Changeset('doc_id', 'author', [])
cs1.add_op(op1)
# op2 happens at a different path, so should not be affected
op2 = Op('od', ['a', 'b', 3, 5], offset='Y')
op2.ot(cs1)
assert op2.t_path == ['a', 'b', 3, 5]
assert op2.t_offset == 'Y'
assert not op2.is_noop()
op1.hazards = []
# op3 happens at same path but different offset
op3 = Op('od', array_path, offset='R')
op3.ot(cs1)
assert op3.t_path == array_path
assert op3.t_offset == 'R'
assert not op3.is_noop()
op1.hazards = []
# op4 tries to delete the same key as op1
op4 = Op('od', array_path, offset='X')
op4.ot(cs1)
assert op4.is_noop()
op1.hazards = []
# op5 tries to delete something within what was already deleted
op5_path = array_path + ['X']
op5 = Op('od', op5_path, offset='R')
op5.ot(cs1)
assert op5.is_noop()
op1.hazards = []
# op6 is at a shorter, different path. No change
op6_path = ['a']
op6 = Op('od', op6_path, offset='c')
op6.ot(cs1)
assert op6.t_path == ['a']
assert op6.t_offset == 'c'
assert not op6.is_noop()
op1.hazards = []
# op9 is at shorter, same path. No change
op9_path = ['a']
op9 = Op('od', op9_path, offset='b')
op9.ot(cs1)
assert op9.t_path == op9_path
assert op9.t_offset == 'b'
assert not op9.is_noop()
op1.hazards = []