oraclematcher

package
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Published: Mar 26, 2017 License: MIT Imports: 1 Imported by: 0

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Constants

This section is empty.

Variables

This section is empty.

Functions

func MatchMayChangeInTheFuture

func MatchMayChangeInTheFuture(matcher types.GomegaMatcher, value interface{}) bool

Types

type OracleMatcher

type OracleMatcher interface {
	MatchMayChangeInTheFuture(actual interface{}) bool
}

GomegaMatchers that also match the OracleMatcher interface can convey information about whether or not their result will change upon future attempts.

This allows `Eventually` and `Consistently` to short circuit if success becomes impossible.

For example, a process' exit code can never change. So, gexec's Exit matcher returns `true` for `MatchMayChangeInTheFuture` until the process exits, at which point it returns `false` forevermore.

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