// WhenCoverage provides coverage for the When function.
func (t *StringRSuite) WhenCoverage() async.R {
expected := "a test string"
w := async.WhenString(async.Done(), func() async.StringR {
r, s := async.NewStringR()
s.Complete(expected)
return r
})
// Verify that the value was round-tripped.
return async.When(w, func(val string, err error) error {
if err != nil {
return fmt.Errorf("Expected success. Got: %v, Want: nil", err)
}
if val != expected {
return fmt.Errorf("Expected value. Got: %v, Want: %v", val, expected)
}
return nil
})
}
// ForwardCoverage provides coverage for the Forward function.
func (t *StringRSuite) ForwardCoverage() async.R {
expected := "a test string"
resolved, s0 := async.NewStringR()
s0.Complete(expected)
// Instead of resolving the return result, forward it to an already resolved value.
w := async.WhenString(async.Done(), func() async.StringR {
r, s := async.NewStringR()
s.Forward(resolved)
return r
})
// Verify that the value was round-tripped.
return async.When(w, func(val string, err error) error {
if err != nil {
return fmt.Errorf("Expected success. Got: %v, Want: nil", err)
}
if val != expected {
return fmt.Errorf("Expected value. Got: %v, Want: %v", val, expected)
}
return nil
})
}