Automatic verification of graphic rendition of JSON data

A system, comprising:

• a processor;
• a computer readable memory in circuit communication with the processor;
• and
• a computer readable storage medium in circuit communication with the processor;
• wherein the processor executes program instructions stored on the computer-readable storage medium via the computer readable memory and thereby:
• uses a stored baseline JavaScript Object Notation (JSON) file to render data values of a baseline data set into a baseline graphic presentation that meets a boundary condition requirement for displaying the data values, wherein a local reverse proxy server that is disposed in a network communication structure between a front end computer device and a back end server, in response to a request from the front end computer device, retrieves the stored baseline JSON file from a local file system of the front end computer device, and retrieves the data values of the baseline data set from the back end server, and wherein the front end computer device renders the data values of the baseline set of data into the baseline graphic presentation;
• stores the baseline graphic presentation in the local file system;
• uses the stored baseline JSON file to render in the front end device data values of a second set of data of the back end server data warehouse data into a new graphic presentation;
• compares the stored baseline graphic presentation to the new graphic presentation on a pixel-by-pixel basis;
• and
• in response to the pixel-by-pixel comparing indicating a difference in display of values of the boundary condition requirement in the new graphic presentation relative to the baseline graphic presentation, revises the stored baseline JSON file into a revised baseline JSON file that is stored on the local file system of the front end computer device and that renders the data values of the second set of data into a revised new graphic presentation, wherein comparing the revised new graphic presentation on a pixel-by-pixel basis to the baseline graphic presentation does not indicate a difference in display of the values of the boundary condition requirement in the revised new graphic presentation relative to the baseline graphic presentation.

A computer program product for automatic verification of graphic rendition of JavaScript Object Notation (JSON) data, the computer program product comprising:

• a computer readable hardware storage device having computer readable program code embodied therewith, wherein the computer readable hardware storage device is not a transitory signal per se, the computer readable program code comprising instructions for execution by a processor that cause the processor to:
• use a stored baseline JSON file to render data values of a baseline data set into a baseline graphic presentation that meets a boundary condition requirement for displaying the data values, wherein a local reverse proxy server that is disposed in a network communication structure between a front end computer device and a back end server, in response to a request from the front end computer device, retrieves the stored baseline JSON file from a local file system of the front end computer device, and retrieves the data values of the baseline data set from the back end server, and wherein the front end computer device renders the data values of the baseline set of data into the baseline graphic presentation;
• store the baseline graphic presentation in the local file system;
• use the stored baseline JSON file to render in the front end device data values of a second set of data of the back end server data warehouse data into a new graphic presentation;
• compare the stored baseline graphic presentation to the new graphic presentation on a pixel-by-pixel basis;
• and
• in response to the pixel-by-pixel comparing indicating a difference in display of values of the boundary condition requirement in the new graphic presentation relative to the baseline graphic presentation, revise the stored baseline JSON file into a revised baseline JSON file that is stored on the local file system of the front end computer device and that renders the data values of the second set of data into a revised new graphic presentation, wherein comparing the revised new graphic presentation on a pixel-by-pixel basis to the baseline graphic presentation does not indicate a difference in display of the values of the boundary condition requirement in the revised new graphic presentation relative to the baseline graphic presentation.