Test method as well as a converter, a test set, and a test-program module therefor

• US 5,577,198 A
• Filed: 07/26/1995
• Issued: 11/19/1996
• Est. Priority Date: 07/28/1994
• Status: Expired due to Fees

• Current Assignee: Alcatel Sel AG (Nokia Corporation)
• Original Assignee: Alcatel Sel AG (Nokia Corporation)
• Inventors: Willrett, Ursel, Schaupp, Konrad
• Primary Examiner(s): Beausoliel, Jr., Robert W.
• Assistant Examiner(s): Palys, Joseph E.
• Application Number:
  US08/507,111
• Time in Patent Office: 482 Days
• Field of Search: 395/183.09, 395/183.08, 395/183.04, 395/183.03, 395/183.07, 371/20.1, 371/20.4, 371/20.5
• US Class Current: 714/33
• CPC Class Codes: H04L 43/00 Arrangements for monitoring or testing data switching networks
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

To test a first device, the latter is connected to a simulator which simulates at least one second device according to a test case stored in a second data set. The simulator sends messages to the first device according to the test case, receives reply messages from the first device, and stores these reply messages in the second data set. According to the invention, the test is stored in advance as an abstract test scenario in a first data set. To generate the test case, the first data set is then mapped to the second data set by means of message-structure data and by insertion of basic-setting data. For evaluation, the second data set is mapped back to the first data set by data reduction.

Claims

1. A method of testing at least one first device (NETKOMP) wherein the first device (NETKOMP) is connected to a simulator (SIM) which simulates at least one second device according to a test case stored in a second data set (CASE), and wherein the simulator (SIM) sends messages to the first device (NETKOMP) according to the test case, receives reply messages from the first device (NETKOMP), and stores them in the second data set, characterized in that a test is stored in advance as an abstract test scenario in a first data set (SZ), that to generate the test case, the first data set (SZ) is mapped to the second data set (CASE) by means of message-structure data and by insertion of basic-setting data, and that for evaluation, the second data set (CASE) is mapped back to the first data set (SZ) by data reduction.

2. A method as claimed in claim 1, characterized in that the basic-setting data are assigned to message-structure positions, that for the mapping of the first data set (SZ) to the second data set (CASE), the abstract test scenario is mapped to a plurality of message-structure positions (POS11 to POS34), and that the basic-setting data assigned to said message-structure positions (POS11 to POS34) are determined.

3. A method as claimed in claim 2, characterized in that the message structure corresponds to a tree structure.

4. A method as claimed in claim 1, characterized in that for the mapping of the second data set (CASE) back to the first data set (SZ), the reply messages are mapped to message-structure positions (POS11 to POS34) using the abstract test scenario.

5. A method as claimed in claim 4, characterized in that the message structure corresponds to a tree structure.

6. A method as claimed in claim 1, characterized in that the abstract test scenario is generated in a locally selectable abstraction depth and stored in the first data set (SZ) by means of an operating facility (SERV).

7. A method as claimed in claim 1, characterized in that the abstract test scenario is mapped back in an abstraction depth differing locally from that of the abstract test scenario if differences between the abstract test scenario and the test scenario being mapped back are detected.

8. A method as claimed in claim 1, characterized in that the second data set (CASE) is mapped back to the first data set (SZ) on request.

9. A method as claimed in claim 1, characterized in that the second data set (CASE) is mapped back to the first data set (SZ) in response to reply messages received from the first device (NETKOMP).

10. A converter (KONV) for testing at least one first device (NETKOMP) by means of a simulator (SIM) designed to simulate at least one second device according to a test case stored in a second data set (CASE), characterized in that the converter (KONV) is provided with a memory device (MEM1), with a mapping device (DEP), and with an operating facility (SERV) for entering data into the memory device (MEM1) and extracting data therefrom, that the memory device (MEM1) contains a first data set (SZ) about an abstract test scenario, a basic-setting data set (BASE), and a message-structure data set (PROT), and that the mapping device (DEP) is designed to map, in response to a first control instruction, the first data set (SZ) to the second data set (CASE) by means of data from the message-structure data set (PROT) and by insertion of data from the basic-setting data set (BASE), and to map, in response to a second control instruction, the second data set (CASE) back to the first data set (SZ) by data reduction.

11. A converter (KONV) as claimed in claim 10, characterized in that the mapping device (DEP) includes means for connecting different simulators (SIM) thereto.

12. A test set (TEST) for testing at least one first device (NETKOMP) connected thereto, the test set (TEST) comprising a simulator (SIM) designed to simulate at least one second device according to a test case stored in a second data set (CASE), characterized in that the test set (TEST) further comprises a converter (KONV) which is provided with a memory device (MEM1), with a mapping device (DEP), and with an operating facility (SERV) for entering data into the memory device (MEM1) and extracting data therefrom, that the memory device (MEM1) contains a first data set (SZ) about an abstract test scenario, a basic-setting data set (BASE), and a message-structure data set (PROT), and that the mapping device (DEP) is designed to map, in response to a first control instruction, the first data set (SZ) to the second data set (CASE) by means of data from the message-structure data set (PROT) and by insertion of data from the basic-setting data set (BASE), and to map, in response to a second control instruction, the second data set (CASE) back to the first data set (SZ) by data reduction.

13. A test set (TEST) as claimed in claim 12, characterized in that the test set (TEST) is connected to the first device (NETKOMP) by a plurality of links (CON1 to CON4), and that the simulator (SIM) is designed to simulate one second device per link (CON1 to CON4).

14. A program module for a converter (KONV) for testing at least one first device (NETKOMP) by means of a simulator (SIM) designed to simulate at least one second device according to a test case stored in a second data set (CASE), said program module containing a plurality of control instructions, characterized in that the control instructions are arranged to control the sequence of operations in the converter (KONV) in such a way that in response to a first request, a first data set (SZ) in which a test is stored as an abstract test scenario is mapped to the second data set (CASE) by means of message-structure data and by insertion of basic-setting data, and that in response to a second request, the second data set (CASE) is mapped back to the first data set (SZ) by data reduction.