What is GUI Testing and Most common GUI Test Cases for Web-based Application:
There are two types of interfaces in a computer application.
1.Command Line Interface is where you type text and computer respond to that command.
2.GUI stands for Graphical User Interface where you interact with the computer using images rather than text.
The term “User Interface” refers to the methods and devices that are used to accommodate interaction between machines and the human beings, users, who use them. User interfaces can take on many forms, but always accomplish two fundamental tasks: communicating information from the product to the user, and communicating information from the user to the product.
The term “Graphical user interface”(GUI) is the layer where the digital product communicated with human and human communicated with the digital product. A well-designed product can fail with an unsuccessful interface. Conversely, a product has not good design values can become successful with its well-designed interface. To get the best interaction between digital product and user, the graphical interface design itself needs to have some design values and requires a systematic approach to the design process. But, to ensure optimum performance, it also requires a model of interaction to understand exactly what is going on in the interaction and identify the likely root of difficulties.
Following are the GUI elements which can be used for interaction between the user and application:
GUI testing involves checking the screens with the controls like menus, buttons, icons, and all types of bars – toolbar, menu bar, dialog boxes and windows, etc.
GUI Testing basically involves
1.Check the all required objects, elements, fields, buttons,labels and links are available
2.Check the URLs of the each page
3.check the page titles of the each page
4.Check all pages for broken links
5. All fields on pages (e.g. text box, radio options, drop-down lists) should be aligned properly with size, position, width, height of the elements.
6.Do buttons follow the project standards for size and position
7.Enough space should be provided between field labels, columns, rows, error messages etc.
8.All mandatory fields should be validated and indicated by asterisk (*) symbol
9.Validation error messages should be displayed properly at correct position
10.Input fields should be checked for maximum field value. Input values greater than specified max limit should not be accepted or stored in database
11.Confirmation messages should be displayed before performing any update or delete operation
12.Tooltip text should be meaningful.
13.1 Are the field backgrounds the correct color?
13.2 Are the field prompts the correct color?
13.3 Are the screen and field colors adjusted correctly for non-editable mode?
13.4 Are all the buttons are in standard format and size?
13.5 Is the general screen background the correct color?
13.6 Is the page background (color) distraction free?
13.7 Testing the colors of the error messages, warning messages and success messages displayed in different CSS styles for each.
14.1 Are all the screen prompts specified in the correct screen font?
14.2 Does content remain if you need to go back to a previous page, or if you move forward to another new page?
14.3 Is all text properly aligned?
14.4 Is the text in all fields specified in the correct screen font?
14.5 Is all the heading are left aligned
14.6 Font size, style and color for headline, description text and labels should be standard as specified in SRS and check the font whether it is readable or not.
14.7 Testing of the spelling, and ensure that you have test cases that look for grammar or spelling errors…
15.1 Are all graphics properly aligned?
15.2 Are graphics being used the most efficient use of file size?
15.3 Assure that buttons are all of similar size and shape, and same font & font size.
15.4 Banner style & size & display exact same as existing windows
15.5 Does text wrap properly around pictures/graphics?
15.6 Testing the alignment of the images and Check all pages for broken images.
16.1 Can all screens accessible via buttons on this screen be accessed correctly?
16.2 Does the Tab Order specified on the screen go in sequence from Top Left to bottom right? This is the default unless otherwise specified.
16.3 Is there a link to home on every single page?
16.4 When an error message occurs does the focus return to the field in error when the user cancels it?
16.5 Testing of the scrollbars according to the size of the page if any.
16.6 Pagination should be enabled when there are more results than the default result count per page
16.7 Check for Next, Previous, First and Last page pagination functionality
17.1 Are all the field prompts spelled correctly?
17.2 Are fonts too large or too small to read?
17.3 Can the typical user run the system without frustration?
17.4 Do pages print legibly without cutting off text?
17.5 Does the site convey a clear sense of its intended audience?
17.6 Does the site have a consistent, clearly recognizable “look-&-feel”?
17.7 Check the screen in different resolutions with the help of zooming in and zooming out like 640 x 480, 600×800, etc.
17.8 Testing whether the interface is attractive or not.
17.9 Does the system provide or facilitate customer service? i.e. responsive, helpful, accurate?
17.10 Is all terminology understandable for all of the site’s intended users?
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