Assert checks a condition and Fails if it is false.

Assertf checks a condition and Failfs if it is false, formatting and logging the given message.

AssertNoError will Fail if the error is non-nil.

AssertNoErrorf will Fail if the error is non-nil, adding the additional log message.

Fail unconditionally abandons the process.

Failf unconditionally abandons the process, formatting and logging the given message.

Ignore explicitly ignores a value.

IgnoreClose closes and ignores the returned error.

IgnoreError explicitly ignores an error.

Require checks a precondition condition pertaining to a function parameter, and Fails if it is false.

Requiref checks a precondition condition pertaining to a function parameter, and Failfs if it is false.