Whitebox Testing - What is meant by API Testing? Explain the API Testing process.

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What is meant by API Testing? Explain the API Testing process.

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Last Update: November 19, 2009 Asked by: Harish

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July 30, 2007 07:27:03

hanumanthvm

Member Since: July 2007 Contribution: 9

RE: What is meant by API Testing? Explain the API Test...

API testing is to make sure that the basic units of the software application function perfectly well. Reason why we perform API testing right from the initial stages of the product cycle to the final phase ensuring that the product release in the market is error-free and worth every penny you invested. API testing process involves testing the methods of NET JAVA J2EE APIs for any valid invalid and inopportune inputs plus testing the APIs on Application servers.

API-testing target the code-level and can b done even by testers

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November 18, 2009 06:02:52

mathan_vel

Member Since: December 2007 Contribution: 422

RE: What is meant by API Testing? Explain the API Testing process.

During testing a test harness-an application that links the API and methodically exercises its functionality-is constructed to simulate the use of the API by end-user applications. The interesting problems for testers are:

1. Ensuring that the test harness varies parameters of the API calls in ways that verify functionality and expose failures. This includes assigning common parameter values as well as exploring boundary conditions.

2. Generating interesting parameter value combinations for calls with two or more parameters.

3. Determining the content under which an API call is made. This might include setting external environment conditions (files peripheral devices and so forth) and also internal stored data that affect the API.

4. Sequencing API calls to vary the order in which the functionality is exercised and to make the API produce useful results from successive calls.

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