JPS6331811B2 - - Google Patents

Description

[Detailed Description of the Invention] (1) Technical Field of the Invention When a large amount of test data is required, such as in a vector computer, the present invention automatically uses an operating system in a data collection system without requiring coding by acquisition. Concerning how to create test data.

(2) Prior art and problems A test program used for testing the operation of hardware such as a computer consists of a management section and a test data section, and the test data section further contains test input data and correct values (test input data (obtained when the hardware responds correctly when input).

In the conventional test data creation method, as shown in FIG. 1, test input test data for each operand is first created by a random number generation routine, and then output to a card. Next, use the card as input to create test data, run the test input data on a normal device under test, and obtain the output results. After checking the output results manually, the values were coded to create a card, and the values on the card were entered into the correct value area of the test program as the correct values. It was then incorporated into the test program. When creating operand data, when processing a large amount of data at once like a vector data processing device, the amount of data processed at one time like a general-purpose computer is
Unlike the maximum of 64 bytes, it is several dozen times larger, such as 4K bytes to 8K bytes. Therefore, the number of test data cards reaches several thousand. Furthermore, since there are a large number of cards with correct answer values, manual verification takes a long time and errors are inevitable. Furthermore, there is a drawback that correct values cannot be obtained unless it is guaranteed that the device under test is operating normally.

(3) Purpose of the Invention The purpose of the present invention is to improve the above-mentioned drawbacks, avoid manual coding mistakes, shorten test program creation time, and automatically create test input data and correct answer values for each operand. The purpose is to provide a method.

(4) Structure of the invention The structure of the present invention to achieve the above object is as follows:
In a method for creating a test program configured to test a computer by operating a computer using input data in source format and correct answer values in source format, data generated by random numbers and other data for testing is created as test input data for each operand in the storage area, and the correct answer value obtained by pseudo-executing this data with a simulation routine that can be operated on the data collection system and the input test data are This was converted into source format and incorporated into the above test program.

(5) Embodiment of the invention An embodiment of the invention shown in FIG. 2 will be described below. Data generated by random numbers as test data and other data for testing (for example, all "0", all "1", A-A, 5-5) are created as test input data for each operand in the storage area. do. FIG. 3 shows a flowchart for creating test data, which can be used to allocate whether or not to use other data depending on a part of the random number.

In executing a test instruction, a vector instruction and an instruction sequence to be tested are executed in a pseudo manner on the data collection system by performing a software simulation using the data collection system. The soft simulation method will be explained using a vector addition instruction Ai=Bi+Ci, which is one of the vector data processing instructions, as an example. A vector addition instruction is created so that when a vector addition instruction is detected during execution of a test program, a program interrupt is generated. The software simulation is activated by an interrupt and the following processing is performed.

The interrupt instruction code is analyzed, and if it is a vector instruction, proceed to the next process, otherwise the program is abnormally terminated.

Calculate the operand addresses of operands Ai, Bi, and Ci to obtain the test data address.

Set “0” to the counter.

Execute A=B+C.

Add 1 to the counter.

This is repeated until the counter value becomes equal to i.

Return to the next address of the vector addition instruction that interrupted.

In storing the pseudo-execution results in FIG. 2, in the test instruction execution described above, the test instructions that were executed in a pseudo manner and the execution results of the test instructions are sequentially stored in the correct value area of the main storage device, and the correct answer value is Create.

In the source conversion program, the test input data area created on the main memory when creating operand data and the correct value area created on the main memory when storing the pseudo execution results are input, and each test input data and correct value data,
Using a source conversion program, the data on the main memory is sequentially converted into a source format that can be understood by the operating system, and output to a file.
Create each data.

Incorporate each data (test input data, correct value) on the file created above into each area of test input data and correct value in the test program,
Get the test program.

(6) Effects of the Invention In this way, according to the present invention, even when a large amount of input test data is required, as in the case of a vector arithmetic processing device, there is no need to create cards as in the past. The test data is processed on the storage device without any manual verification, and the desired test data can be obtained in a short time without any mistakes.

Moreover, since it does not require a device under test that is guaranteed to operate normally, it has the advantage that the requirements for preparing hardware can be reduced.

[Brief explanation of drawings]

FIG. 1 is a diagram explaining a conventional test data creation method, FIG. 2 is a diagram showing an embodiment of the present invention, and FIG.
The figure is a flowchart showing the process for creating the test data in FIG.

Claims (1)

[Claims] 1. In a method for creating a test program configured to test a computer by operating a computer using input data in source format and correct values in source format, data generated by random numbers and other data for testing are used. data as test input data for each operand in the storage area,
The correct value obtained by pseudo-executing this data using a simulation routine that can be run on the data collection system and the input test data are converted into source format and incorporated into the test program. Characteristic test program creation method.