Finish doc and tests for sq_ass_item.

Author: paulross

doc/sphinx/source/new_types.rst

@@ -1029,13 +1029,132 @@ In ``src/cpy/Object/cSeqObject.c``:
 Tests
 --------------
 
-Tests are in ``tests/unit/test_c_seqobject.py`` which includes failure modes:
+Tests are in ``tests/unit/test_c_seqobject.py`` which includes failure modes.
+First setting a value:
 
 .. code-block:: python
 
  from cPyExtPatt import cSeqObject
 
- pass
+ @pytest.mark.parametrize(
+ 'initial_sequence, index, value, expected',
+ (
+ (
+ [7, 4, 1, ], 0, 14, [14, 4, 1, ],
+ ),
+ (
+ [7, 4, 1, ], -1, 14, [7, 4, 14, ],
+ ),
+ (
+ [7, 4, 1, ], -2, 14, [7, 14, 1, ],
+ ),
+ (
+ [7, 4, 1, ], -3, 14, [14, 4, 1, ],
+ ),
+ )
+ )
+ def test_SequenceLongObject_setitem(initial_sequence, index, value, expected):
+ obj = cSeqObject.SequenceLongObject(initial_sequence)
+ obj[index] = value
+ assert list(obj) == expected
+
+
+Setting a value with an out of range index:
+
+.. code-block:: python
+
+ from cPyExtPatt import cSeqObject
+
+ @pytest.mark.parametrize(
+ 'initial_sequence, index, expected',
+ (
+ (
+ [7, 4, 1, ], 3, 'Index 3 is out of range for length 3',
+ ),
+ (
+ [7, 4, 1, ], -4, 'Index -4 is out of range for length 3',
+ ),
+ )
+ )
+ def test_SequenceLongObject_setitem_raises(initial_sequence, index, expected):
+ print()
+ print(initial_sequence, index, expected)
+ obj = cSeqObject.SequenceLongObject(initial_sequence)
+ with pytest.raises(IndexError) as err:
+ obj[index] = 100
+ print(list(obj))
+ assert err.value.args[0] == expected
+
+
+Deleting a value:
+
+.. code-block:: python
+
+ from cPyExtPatt import cSeqObject
+
+ @pytest.mark.parametrize(
+ 'initial_sequence, index, expected',
+ (
+ (
+ [7, ], 0, [],
+ ),
+ (
+ [7, ], -1, [],
+ ),
+ (
+ [7, 4, 1, ], 1, [7, 1, ],
+ ),
+ (
+ [7, 4, ], 0, [4, ],
+ ),
+ (
+ [7, 4, 1, ], -1, [7, 4, ],
+ ),
+ (
+ [7, 4, 1, ], -2, [7, 1, ],
+ ),
+ (
+ [7, 4, 1, ], -3, [4, 1, ],
+ ),
+ )
+ )
+ def test_SequenceLongObject_delitem(initial_sequence, index, expected):
+ obj = cSeqObject.SequenceLongObject(initial_sequence)
+ del obj[index]
+ assert list(obj) == expected
+
+
+Deleting a value with an out of range index:
+
+.. code-block:: python
+
+ from cPyExtPatt import cSeqObject
+
+ @pytest.mark.parametrize(
+ 'initial_sequence, index, expected',
+ (
+ (
+ [], 0, 'Index 0 is out of range for length 0',
+ ),
+ (
+ [], -1, 'Index -1 is out of range for length 0',
+ ),
+ (
+ [7, ], 1, 'Index 1 is out of range for length 1',
+ ),
+ (
+ [7, ], -3, 'Index -3 is out of range for length 1',
+ ),
+ )
+ )
+ def test_SequenceLongObject_delitem_raises(initial_sequence, index, expected):
+ print()
+ print(initial_sequence, index, expected)
+ obj = cSeqObject.SequenceLongObject(initial_sequence)
+ print(list(obj))
+ with pytest.raises(IndexError) as err:
+ del obj[index]
+ assert err.value.args[0] == expected
 
 
 

tests/unit/test_c_seqobject.py

@@ -194,6 +194,12 @@ def test_SequenceLongObject_item_raises(initial_sequence, index, expected):
  (
  [7, 4, 1, ], -1, 14, [7, 4, 14, ],
  ),
+ (
+ [7, 4, 1, ], -2, 14, [7, 14, 1, ],
+ ),
+ (
+ [7, 4, 1, ], -3, 14, [14, 4, 1, ],
+ ),
  )
 )
 def test_SequenceLongObject_setitem(initial_sequence, index, value, expected):
@@ -238,6 +244,15 @@ def test_SequenceLongObject_setitem_raises(initial_sequence, index, expected):
  (
  [7, 4, ], 0, [4, ],
  ),
+ (
+ [7, 4, 1, ], -1, [7, 4, ],
+ ),
+ (
+ [7, 4, 1, ], -2, [7, 1, ],
+ ),
+ (
+ [7, 4, 1, ], -3, [4, 1, ],
+ ),
  )
 )
 def test_SequenceLongObject_delitem(initial_sequence, index, expected):