base

type MultiRunner interface {
	Runner

	// Init does one-time initialization of this Runner before running tests.
	Init() error

	// Close cleans everything up. Nothing else can be called after Close.
	Close() error
}

type Runner interface {
	// Arrange sets up for one test, to be performed by Act().
	Arrange() error

	// Act runs the code under test.
	Act() error

	// Assert checks the output against the golden file.
	Assert() error
}

type Tester struct {
	// Base name for all files in the test, if not overridden; defaults to "test".
	BaseName string
	// Base directory; if not set, uses "testdata".
	BaseDir string

	// Base name for the test output file; if not set, uses BaseName.
	OutBaseName string
	// Path to the test output file; if not set, uses OutBaseName.
	OutPath string

	// Base name for the golden file; if not set, uses BaseName.
	GoldenBaseName string
	// Path to the golden file; if not set, uses GoldenBaseName.
	GoldenPath string

	// Function to run the test.
	Test func(*Tester) error

	// The output file.
	OutF *os.File
	// A Writer that can be used to write to the output file.
	OutW *bufio.Writer
}