CODEWITHSUNDEEP
xcodeunit-testing
Orion Edwards
Orion Edwards

Reputation: 123662

What are the two different times output from an XCTest run?

When I run my set of unit tests (Xcode 9.2), it logs output like this:

Test Suite 'All tests' passed at 2017-12-13 14:16:27.947.
    Executed 319 tests, with 0 failures (0 unexpected) in 0.372 (0.574) seconds

There are two times here, 0.372 and 0.574 seconds respectively. Can anyone please tell me (or point me to anything that explains) what the two different values mean, and why there is a difference between the two?

Upvotes: 1

Views: 57

Answers (1)

mugx
mugx

Reputation: 10105

The first 0.372 delta time is the effective time spent by the test cases runtime execution.

The second 0.574 is the effective time spent between the beginning and the end of the measurements.

Why a difference of 0.202 ? I suppose there is a context switching debt of some milliseconds, depending by the Test Cases and Test Suites cardinality.

Moreover, you may check here: enter image description here the 5.434 is the delta between 12.247 and 17.681, so between the effective beginning of the unit testing and the end of the execution of the last Test Suite

Upvotes: 1

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