摘要:
Improvements in functional verification of a design are achieved by providing a test template that specifies test parameters directed to a function of the design. An exemption mode of operation is associated with a portion of the template, in which constraints and variables associated with the template are revised. The template is an input to a CSP engine, which, in cooperation with a test generator engine, produces test scenarios that lie in an expanded region of the generator's usual operational space. Provision is made for independently enabling and disabling a plurality of exemption modes of operation that are associated with the same or different areas of the template.
摘要:
A test program generator that produces test instructions according to a specification of a system being verified. The instructions are typically generated randomly, at least in part, and are then. The system is capable of interpreting events, detecting an impending occurrence of an event, and responding to the event by switching to an alternate input stream.
摘要:
Device, system and method of modeling homogeneous information. For example, a method that includes providing to a model-based application an input model including a refinable homogeneous record having a base type, wherein said homogeneous record is defined with a homogeneous constraint to only include data members of a type compatible with the base type. The homogeneous record is defined in a modeling environment that is able to automatically enforce the homogeneous constraint for the homogeneous record and for refinements thereof.
摘要:
Device, system and method of modeling homogeneous information. For example, a method that includes providing to a model-based application an input model including a refinable homogeneous record having a base type, wherein said homogeneous record is defined with a homogeneous constraint to only include data members of a type compatible with the base type. The homogeneous record is defined in a modeling environment that is able to automatically enforce the homogeneous constraint for the homogeneous record and for refinements thereof.
摘要:
Methods and systems are presented for generation of a test suite in order to validate compliance of a process with its process specification. The methodology involves a formal description of the process using a flowchart, refinement of the flowchart to include misinterpretations of the process specification, defining compliance coverage models over the flowchart, and automatically generating test case scenarios that cover the models. Internal and external types of misinterpretation are distinguished. A compliance test suite is automatically generated and observations made of the details of the traversal through the flow chart when the tests are executed.
摘要:
A computer-implemented method and apparatus for generating questions. The method comprises receiving a rule; dynamically generating a graph representing a question, the graph comprising one or more nodes, each node associated with a rule having one or more variables; sampling a value from the value domain for the variable; and synthesizing a textual representation of the graph.
摘要:
A parametrically controlled model-based test generator automatically generates architectural compliance test suites for different implementations of a processor architecture, based on a set of architectural decisions chosen among optional behaviors for each implementation. Thus, different implementations of the same architecture can be easily supported by modifying the parameter values. In addition, ongoing changes to the architecture or comprehensive updates to the test suite can be easily handled by updating the architecture model or the coverage models, forgoing the need to review the whole, potentially huge, set of tests.
摘要:
A parametrically controlled model-based test generator automatically generates architectural compliance test suites for different implementations of a processor architecture, based on a set of architectural decisions chosen among optional behaviors for each implementation. Thus, different implementations of the same architecture can be easily supported by modifying the parameter values. In addition, ongoing changes to the architecture or comprehensive updates to the test suite can be easily handled by updating the architecture model or the coverage models, forgoing the need to review the whole, potentially huge, set of tests.
摘要:
Methods and systems are disclosed that enhance the ability of a test generator to automatically deal with address translation in a processor design, and without need for creating specific code. A model of the address translation mechanism of a design-under-test is represented as a directed acyclic graph and then converted into a constraint satisfaction problem. The problem is solved by a CSP engine, and the solution used to generate test cases for execution. Using the model, testing knowledge can be propagated to models applicable to many different designs to produce extensive coverage of address translation mechanisms.
摘要:
A method for automatically generating test programs includes receiving a description of a system under test, expressed in terms of variables associated with the system and conditional constraints including semantics applied to the variables, and receiving a definition of an event to be tested in the system. The method generates an ECondCSP over the variables responsively to the definition of the event and to the conditional constraints, such that at least some of the semantics of the conditional constraints are preserved in the ECondCSP when one or more of the variables to which the semantics are applied are inactive. The ECondCSP is solved to generate a test case for the system.