Checking Object State and Data in Image-Based Tests

Applies to TestComplete 15.40, last modified on March 25, 2022

In your tests, you often need to check the state of a control in your tested application. For example, you may need to check whether a specific control is enabled and is visible on the screen. Also, you may need to check whether the control displays the needed data.

To check an object’s state or data it displays in image-based tests, compare the actual image of the control on the screen with the stored image that represents the expected state of the tested application or displays the expected data.

In Desktop and Web Applications

You can check whether your PC desktop shows the expected image by using region checkpoints or various picture comparison methods.

Checking Images in Keyword Tests

Use the Region Checkpoint operation:

Image-Based Testing: Mobile checkpoint

Use the Compare Pictures operation:

Image-Based Testing: Mobile checkpoint

Checking Images in Scripts

Use the Regions.RegionCheckpointName.Check method or the Regions.Compare method:

JavaScript, JScript

function Test()
{
  TestedApps.myapp.Run();
  ImageRepository.myapp.mainWindow.Click(320, 300, skNoShift, Sys.Process("myapp").Window("main", "*"));
  // ...
  Regions.mainWindow.Check(Sys.Process("myapp").Window("main", "*"));
}

Python

def Test1():
  TestedApps.myApp.Run();
  ImageRepository.myApp.mainWindow.Click(300, 320, skNoShift, Sys.Process("myapp").Window("main", "*"));
  # ...
  Regions.mainWindow.Check(Sys.Process("myapp").Window("main", "*"));

VBScript

Sub Test
  TestedApps.myapp.Run
  Call ImageRepository.myapp.mainWindow.Click(320, 300, skNoShift, Sys.Process("myapp").Window("main", "*"))
  ' ...
  Regions.mainWindow.Check(Sys.Process("myapp").Window("main", "*"))
End Sub

DelphiScript

procedure Test();
begin
  TestedApps.myapp.Run;
  ImageRepository.myapp.mainWindow.Click(320, 300, skNoShift, Sys.Process('myapp').Window('main', '*'));
  // ...
  Regions.mainWindow.Check(Sys.Process('myapp').Window('main', '*'));
end;

C++Script, C#Script

function Test()
{
  TestedApps["myapp"]["Run"]();
  ImageRepository["myapp"]["mainWindow"]["Click"](320, 300, skNoShift, Sys["Process"]("myapp")["Window"]("main", "*"));
  // ...
  Regions["mainWindow"]["Check"](Sys["Process"]("myapp")["Window"]("main", "*"));
}

In Mobile Applications

In mobile applications, you can use mobile checkpoints to check whether the device screen shows a needed image.

Checking Images in Keyword Tests

To perform the check in keyword tests, use the Mobile Checkpoint operation.

Image-Based Testing: Mobile checkpoint

Checking Images in Scripts

To check images in script tests, use the ImageRepository.ImageSet.ImageSetItem.CheckImage method.

JavaScript, JScript

function Test()
{
  Mobile.SetCurrent("MyDevice");
  ImageRepository.launcher.DemoApp.Touch();
  // ...
  ImageRepository.demoapp.result.CheckImage();
}

Python

def Test():
  Mobile.SetCurrent("MyDevice");
  ImageRepository.launcher.DemoApp.Touch();
  # ...
  ImageRepository.demoapp.result.CheckImage();

VBScript

Sub Test
  Mobile.SetCurrent("MyDevice")
  ImageRepository.launcher.DemoApp.Touch
  ' ...
  ImageRepository.demoapp.result.CheckImage
End Sub

DelphiScript

procedure Test();
begin
  Mobile.SetCurrent('MyDevice');
  ImageRepository.launcher.DemoApp.Touch();
  // ...
  ImageRepository.demoapp.result.CheckImage();
end;

C++Script, C#Script

function Test()
{
  Mobile["SetCurrent"]("MyDevice");
  ImageRepository["launcher"]["DemoApp"]["Touch"]();
  // ...
  ImageRepository["demoapp"]["result"]["CheckImage"]();
}

See Also

Checking Object State
Image-Based Testing
Common Tasks
Mobile Checkpoints

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