Interface Tester

packer_test/common/check/pipe_checker.go:63–65

Tester is the end of a pipe for testing purposes. Once multiple commands have been piped together in a pipeline, we can perform some checks on that input, and decide if a test is a success or a failure.

// perform some checks on that input, and decide if a test is a success or a
// failure.
type Tester interface {
	Check(input string) error
}

// CustomTester allows providing a function to check that the input is what we want
type CustomTester func(string) error