How does unit testing play a role in the development / software lifecycle?

How does unit testing play a role in the development /
software lifecycle?

Question Posted / matthew

1 Answers
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TCS, I also Faced
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How does unit testing play a role in the development / software lifecycle?..

We can catch simple bugs like GUI ,small functional Bugs
during unit testing.This reduces testing time.Overall this
saves project time.If developer doesn't catch this type of
bugs,this will come to integration testing part and if it
catches by a tester,this need to go through a Buglife cycle
and consumes a lot of time.

or

Unit testing helps in verfying that a unit or module that
is built is as per requirements and functions properly .It
helps in preventing bugs getting multiplied and migrated in
later phases.

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