TestComplete试用版
测试应用程序时,您可能需要延迟测试运行,直到屏幕上出现预期的文本:
1、使用OCR.Recognize.FullText属性捕获在屏幕区域中呈现的文本。
2、检查捕获的文本是否包含预期的文本片段。例如,您可以使用该aqString.Find方法或您认为合适的任何其他字符串比较方法。
3、循环重复步骤1和2,直到出现预期的文本。
注:
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循环中的文本识别和字符串比较可能会降低测试性能。为避免可能的问题,您可以在循环中添加延迟。
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为避免无限循环,您可以添加条件以更早退出循环。
在脚本中
下面的代码包含CheckTextContents获取屏幕上对象和字符串的例程,并验证对象的文本是否包含该字符串。例程将第三个参数用作布尔值,该布尔值指定检查是区分大小写还是不区分大小写。为了获取屏幕上对象的文本,例程使用OCR.Recognize.FullText属性。为了验证文本是否包含字符串,例程使用aqString.Find方法。如果该字符串存在,则例程返回True。否则,它返回False。
在WaitForText下面调用示例代码程序CheckTextContents的循环,直到例行CheckTextContents程序返回true,也就是说,直到测试应用程序呈现预期的文本:
JavaScript, JScript
function CheckTextContents(anObject, aSubstring, caseSensitive){ // Recognize the text contents of the specified onscreen object var text = OCR.Recognize(anObject).FullText; // Search for the occurrence of the specified substring in the recognized text return (aqString.Find(text, aSubstring, 0, caseSensitive) > -1)}function WaitForText(){ var textToWait = "substring"; // Get the onscreen object whose text will be checked var obj = Sys.WaitProcess("MyApp").WaitWindow("Window", "*", -1, 3000); // Delay the test execution until the onscreen object text includes the expected substring while (! CheckTextContents(obj, textToWait, false)) Delay(3000); // The onscreen object contains the needed text // Simulate user actions …}
Python
def CheckTextContents(anObject, aSubstring, caseSensitive=False): # Recognize the text contents of the specified onscreen object text = OCR.Recognize(anObject).FullText # Search for the occurrence of the specified substring in the recognized text return (aqString.Find(text, aSubstring, 0 , caseSensitive) > -1)def WaitForText(): textToWait = "substring" # Get the onscreen object whose text will be checked obj = Sys.WaitProcess("MyApp").WaitWindow("Window", "*", -1, 3000) # Delay the test execution until the onscreen object text includes the expected substring while not CheckTextContents(obj, textToWait, False): Delay(3000) # The onscreen object contains the needed text # Simulate user actions # ...
VBScript
Function CheckTextContents(anObject, aSubstring, caseSensitive) ' Recognize the text contents of the specified onscreen object text = OCR.Recognize(anObject).FullText ' Search for the occurrence of the specified substring in the recognized text CheckTextContents = (aqString.Find(text, aSubstring, 0 , caseSensitive) > -1)End FunctionSub WaitForText textToWait = "substring" ' Get the onscreen object whose text will be checked Set obj = Sys.WaitProcess("MyApp").WaitWindow("WindowClass", "*", -1, 3000) ' Delay the test execution until the onscreen object text includes the expected substring While Not CheckTextContents(obj, textToWait, False) Delay(3000) Wend ' The onscreen object contains the needed text ' Simulate user actions …End Sub
DelphiScript
function CheckTextContents(anObject : OleVariant, aSubstring : String, caseSensitive : boolean = false);var text;begin // Recognize the text contents of the specified onscreen object text := OCR.Recognize(anObject).FullText; // Search for the occurrence of the specified substring in the recognized text result : = (aqString.Find(text, aSubstring, 0, caseSensitive) > -1);end;procedure WaitForText();var obj, textToWait;begin textToWait := 'substring'; // Get the onscreen object whose text will be checked obj := Sys.WaitProcess('MyApp').WaitWindow('Window', '*', -1, 3000); // Delay the test execution until the onscreen object text includes the expected substring while not CheckTextContents(obj, textToWait, false) do Delay(3000); // The onscreen object contains the needed text // Simulate user actions …end;
C++Script, C#Script
function CheckTextContents(anObject, aSubstring, caseSensitive){ // Recognize the text contents of the specified onscreen object var text = OCR["Recognize"](anObject)["FullText"]; // Search for the occurrence of the specified substring in the recognized text return (aqString["Find"](text, aSubstring, 0, caseSensitive) > -1);}function WaitForText(){ var textToWait = "substring"; // Get the onscreen object whose text will be checked var obj = Sys["WaitProcess"]("MyApp")["WaitWindow"]("Window", "*", -1, 3000); // Delay the test execution until the onscreen object text includes the expected substring while (! CheckTextContents(obj, textToWait, false)) Delay(3000); // The onscreen object contains the needed text // Simulate user actions …}
在关键字测试中
1、将CheckTextContents功能代码从上面的示例复制到TestComplete中的测试项目中的脚本单元。
2、在关键字测试中,循环调用CheckTextContents函数,直到该函数返回True。
要调用例程,可以使用Run Code Snippet或Run Script Routine操作。要在关键字测试中创建循环,请使用While循环操作。

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