RU2671041C2 - Method of testing - Google Patents

Abstract

FIELD: payment devices; data processing.

SUBSTANCE: invention relates to the field of testing of payment devices, in particular POS-terminals. In the testing method, a snapshot of the test screen is obtained. In accordance with the screen parameters, the areas of the screen are selected in which the fields are selected in accordance with the coordinates of the fields. Check the fields for correspondence to position and size and analyze the fields by checking the characters in the field on the basis of regular expressions. If the number of valid characters is within acceptable limits, the testing is completed. If the number of valid characters is not within acceptable limits, then complete the test with an error.

EFFECT: technical result is to increase the automation of the testing process by determining the correctness of the information displayed on the screen of the terminal by the vision system.

1 cl, 1 dwg

Description

The invention relates to the field of testing payment devices, in particular POS-terminals.

There are many methods and devices for automatic testing of terminals, both hardware and software. In particular, devices and methods are known according to the patents CN 105159830 A, CN 103679970 A, CN 104714447 A.

In the testing process, among other things, the problem arises of determining the correctness of the information displayed on the screen of the terminal in response to a certain impact. The claimed invention is aimed at solving this problem using a vision system.

The technical result is to increase the automation of the testing process.

The technical result is achieved due to the fact that they take a screenshot of the screen under test, select screen areas in accordance with the screen parameters, in which the fields are selected in accordance with the coordinates of the fields, the fields are checked for compliance with position and size, the fields are analyzed by checking the characters in the field based on regular expressions, if the number of valid characters is within acceptable limits, testing is completed; if not, testing is completed with an error.

The method may be implemented, for example, in accordance with the algorithm shown in FIG. one.

Algorithm structure

1. Getting a picture from the camera

2. Selection of the screen area using data taken from the Terminals table

3. Image Processing

a. Grayscale image translation

b. Noise reduction

c. Convert from gray to binarized (black and white)

4. Highlighting fields using data taken from the Fields table

5. Field analysis

a. Check for raw fields. If there are no unprocessed fields, exit the program.

b. Checking the field for compliance with position and size. If not, exit the program with an error code.

c. Check for raw characters in a character expression. If there are characters, go to step d. If there are no raw characters left in the character expression, check for the number of valid characters in it. If the quantity is within acceptable limits, go to point a. If not, exit the program with an error code.

d. Checking a character against a regular expression database from the Symbols table. If the character is correct, the character counter is incremented by 1; if not, it remains the same.

Explanations

1. Table Fields. This table contains data about the fields of the screen forms: Coordinates, width, height, value (symbol expression) and language.

2. The Terminals table. This table contains information about POS-terminals: Screen coordinates, its width and height.

3. Symbols table. This table contains regular expressions (RegExp) for each character.

4. The hierarchy of objects:

a. POS Terminal

b. Terminal screen

c. Screen form

d. Field

5. Character expression - field value - word or numbers.

6. Regular expressions (RegExp) - any printed characters.

Claims (1)

A testing method, characterized in that a screenshot of the screen to be tested is obtained, in accordance with the screen parameters, areas of the screen are selected in which the fields are selected in accordance with the coordinates of the fields, the fields are checked for position and size, the fields are analyzed by checking the characters in the field using the regular expression database if the number of valid characters is within acceptable limits, testing is completed; if not, testing is completed with an error.

Images