JPH0553852A - Testing device - Google Patents

Abstract

PURPOSE:To obtain the testing device, which can execute a required and optimum test item corresponding to the type of a machine and can continue a test even when error can not to be recovered in the manner of a software during the test, concerning the testing device used for testing a system equipped with a computer. CONSTITUTION:A constitutive equipment identification part 3 discriminates the existence of a constitutive equipment 4 and by referring to the table of the test items provided at a test sequence management part 2, the optimum test item can be selectively executed. Even when the system is turned to a state which can not to be recovered in the manner of the software by the test, it is detected by a detection part 5, hardware interruption is loaded to a CPU 1 and the system is reset. By referring to the executing record of the test recorded in the test sequence management part 2 after re-activation, the remaining test can be continued and the test can be efficiently executed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a test device used for testing a system having a computer.

[0002]

2. Description of the Related Art In the test of a system having a large number of constituent devices, test items are set according to the respective device structures, and further, options in each test are set and the test is conducted. In the system having the configuration of FIG. 2, the CPU device 11,
The main memory 12, the input / output control unit 13, the hard disk drive 14, the tape drive 15, and the keyboard 16 are constituent devices. In this case, it is necessary to select the test for these 6 components.

[0003]

In the case of a system having a large number of types of constituent devices, the user needs to set different test items for optimum testing according to the structure. Also, if an error occurs during a test, the software is set to run the next test, so if the software encounters an irrecoverable error, you cannot continue with further tests, There was a problem that the test efficiency deteriorated.

The present invention is intended to provide a test apparatus that solves these problems.

[0005]

The test apparatus of the present invention comprises:
A test that stores test results while selecting and executing test items according to the configuration using a component device identification unit that determines whether multiple component devices are connected and a table that records the test items required for each device A sequence management unit,
Even if an error occurs in the test and the software cannot restore it, it has a detector that detects it and restores it to the initial state by a hardware interrupt.

[0006]

With this configuration, necessary and optimum test items can be executed according to the model configuration, and the test can be continued even if an error that cannot be recovered by software occurs during the test.

[0007]

FIG. 1 shows an embodiment of the present invention.
In FIG. 1, 1 is a CPU device of the system, and 2 is a test sequence management unit, which stores a test table required for each device and manages the progress of the test. Reference numeral 3 denotes a constituent device identification unit that identifies the presence or absence of the constituent device 4.
A detection unit 5 monitors the operating status of the CPU and resets the system if there is an abnormality. Reference numeral 6 is a system bus.

FIG. 3 is a flow chart showing the flow of the test in one embodiment of the present invention. The operation is shown below.

21. The constituent device identification section 3 reads the ROM in which the ID on the constituent device 4 is written to confirm what the constituent device 4 is.

22. The test sequence management unit 2 refers to the table and selects and stores a test according to the constituent device 4.

23 ... Set the first test number. 24 ... Execute test T (n).

25. The test result is recorded in the test sequence management unit 2. 26 ... Set the next test number.

27 ... It is judged whether or not the test is completed, and if not completed, the test is continued.

While the test is being executed, the detecting unit 5 monitors whether or not an error that cannot be recovered by software has occurred. FIG. 4 is a flowchart showing the flow of operation of the detection unit 5. The operation is shown below.

31 ... Primary clock pulse 7 from detector 5
To the CPU device 1 and accordingly the CPU device 1
The secondary pulse 8 generated by the above is detected.

32. The secondary pulse is used to diagnose whether the CPU is operating normally. 33 ... If an abnormality is recognized in 32, a hardware interrupt 9 is issued to the CPU device 1 to reset the system.

The tostem reset by the detection unit 5 continues the test by the test sequence management unit 2. FIG. 5 is a flow chart showing the flow from the detection of an error that cannot be recovered by software by the detection unit 5 in the embodiment until the recovery of the test. The operation is shown below.

41 ... Restart the system. 42 ... The test sequence management unit 2 refers to the test sequence and the test result.

43 ... Judges whether all the tests have been completed. 44 ... If the test is not completed, the next test number that caused the error is set.

Then, returning to step 5, the test is continued. As described above, according to the present embodiment, it is possible to select and execute the optimum test item by determining the presence or absence of the component device by the component device identification unit and referring to the test item table held by the test sequence management unit. In addition, even if the system causes an uncontrollable error during the test and the software cannot recover, it is detected by the detection unit and is recorded in the test sequence management unit after resetting and restarting the system. By referring to the test execution record, the remaining tests can be continued and the tests can be performed efficiently.

In the present embodiment, the ID written in the ROM is read in order to identify the constituent device, but it may be identified by the response to a specific signal.

[0022]

As described above, the present invention uses the constituent device identification section for judging whether or not a plurality of constituent devices are connected and the table in which the test items required for each device are recorded, and the test according to the structure is performed. While selecting and executing items, the test sequence management unit that stores the test results and even if an error occurs in the test that cannot be restored by software, it is detected and the initial state is set by a hardware interrupt. It has a detection unit that recovers and can perform the most suitable test according to the device configuration. Even if an error that cannot be recovered by software occurs during the test, the rest of the test can be performed without stopping the entire test. It is possible to realize an excellent test device that can be restarted.

[Brief description of drawings]

FIG. 1 is a block diagram showing a main part of an embodiment of the present invention.

FIG. 2 is a block diagram of a system in which a plurality of constituent devices are connected.

FIG. 3 is a flowchart showing a test flow in one embodiment of the present invention.

FIG. 4 is a flowchart showing the operation of the detection unit in the embodiment.

FIG. 5 is a flow chart from detection of an error that cannot be recovered by software to recovery of the test by the detection unit in the embodiment.

[Explanation of symbols]

 1, 11 CPU device 2 test sequence management unit 3 component identification unit 4 component 5 detection unit 6, 12 system bus 7 primary clock pulse 8 secondary pulse 9 hardware interrupt 13 main memory 14 input / output control unit 15 peripheral device Bus 16 Hard disk drive 17 Tape drive 18 Keyboard

Claims (1)

[Claims] 1. A component device identification section for determining whether or not a plurality of component devices are connected, and a table recording test items required for each device are used to select and execute a test item according to the configuration. There is a test sequence management unit that manages the number of the test to go, and a detection unit that detects the error and returns to the initial state by a hardware interrupt even if an error occurs in the test that cannot be restored by software. A test device characterized by having and executing tests according to the device configuration.