restic/internal/ui/progress/printer.go

66 lines
1.4 KiB
Go

package progress
import "testing"
// A Printer can can return a new counter or print messages
// at different log levels.
// It must be safe to call its methods from concurrent goroutines.
type Printer interface {
NewCounter(description string) *Counter
E(msg string, args ...interface{})
P(msg string, args ...interface{})
V(msg string, args ...interface{})
VV(msg string, args ...interface{})
}
// NoopPrinter discards all messages
type NoopPrinter struct{}
var _ Printer = (*NoopPrinter)(nil)
func (*NoopPrinter) NewCounter(_ string) *Counter {
return nil
}
func (*NoopPrinter) E(_ string, _ ...interface{}) {}
func (*NoopPrinter) P(_ string, _ ...interface{}) {}
func (*NoopPrinter) V(_ string, _ ...interface{}) {}
func (*NoopPrinter) VV(_ string, _ ...interface{}) {}
// TestPrinter prints messages during testing
type TestPrinter struct {
t testing.TB
}
func NewTestPrinter(t testing.TB) *TestPrinter {
return &TestPrinter{
t: t,
}
}
var _ Printer = (*TestPrinter)(nil)
func (p *TestPrinter) NewCounter(_ string) *Counter {
return nil
}
func (p *TestPrinter) E(msg string, args ...interface{}) {
p.t.Logf("error: "+msg, args...)
}
func (p *TestPrinter) P(msg string, args ...interface{}) {
p.t.Logf("print: "+msg, args...)
}
func (p *TestPrinter) V(msg string, args ...interface{}) {
p.t.Logf("verbose: "+msg, args...)
}
func (p *TestPrinter) VV(msg string, args ...interface{}) {
p.t.Logf("verbose2: "+msg, args...)
}