Principle-2:

When the objective of testing is to detect the defects ,then a good test case is one that has a high probability of revealing undetected defect for now.

Explanation:

  • careful designing of the test suites by using efficient and effective strategies results in the identification of undetected defects.so be careful at the time of designing the test cases.

Principle-3:

Test results should be inspected meticulously

Explanation:

  • Testers need to evaluate and examine the test results whether we get the same output or not according to the given testing conditions.

Principle-4: 

A test case must contain the expected result or output.

Explanation:

  • As we discussed above that the each test case must exhibit some functionality so that we can specify the expected result and the output

  • predicting output is one of the important goals in software Testing.