ommx.testing

Classes

DataType

Create a collection of name/value pairs.

SingleFeasibleLPGenerator

Module Contents

class ommx.testing.DataType(*args, **kwds)

Create a collection of name/value pairs.

Example enumeration:

>>> class Color(Enum):
...     RED = 1
...     BLUE = 2
...     GREEN = 3

Access them by:

  • attribute access:

    >>> Color.RED
    <Color.RED: 1>
    
  • value lookup:

    >>> Color(1)
    <Color.RED: 1>
    
  • name lookup:

    >>> Color['RED']
    <Color.RED: 1>
    

Enumerations can be iterated over, and know how many members they have:

>>> len(Color)
3
>>> list(Color)
[<Color.RED: 1>, <Color.BLUE: 2>, <Color.GREEN: 3>]

Methods can be added to enumerations, and members can have their own attributes – see the documentation for details.

FLOAT
INT
class ommx.testing.SingleFeasibleLPGenerator(n: int, data_type: DataType)
get_v1_instance() ommx.v1.Instance

Get an instance of a linear programming problem with a unique solution.

Examples

>>> from ommx.testing import DataType, SingleFeasibleLPGenerator
>>> generator = SingleFeasibleLPGenerator(3, DataType.INT)
>>> ommx_instance = generator.get_v1_instance()
get_v1_state() ommx.v1.solution_pb2.State

Get the solution state of the generated instance.

Examples

>>> from ommx.testing import DataType, SingleFeasibleLPGenerator
>>> generator = SingleFeasibleLPGenerator(3, DataType.INT)
>>> ommx_state = generator.get_v1_state()
FLOAT_LOWER_BOUND = -100.0
FLOAT_UPPER_BOUND = 100.0
INT_LOWER_BOUND = -100
INT_UPPER_BOUND = 100