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package share_test
import (
"testing"
"git.samanthony.xyz/share"
)
// Set value in local goroutine, verify in remote goroutine.
func TestValSetLocal(t *testing.T) {
val := "foo"
sharedVal := share.NewVal[string]()
sharedVal.Set <- val
verifySameVal(sharedVal, val, t)
go func() {
defer sharedVal.Close()
verifySameVal(sharedVal, val, t)
}()
}
// Set value in remote goroutine, verify in local goroutine.
func TestValSetRemote(t *testing.T) {
val := "foo"
sharedVal := share.NewVal[string]()
defer sharedVal.Close()
done := make(chan bool)
defer close(done)
go func() {
sharedVal.Set <- val
verifySameVal(sharedVal, val, t)
done <- true
}()
verifySameVal(sharedVal, val, t)
<-done
}
// Val.TryGet() before Set should fail.
func TestValTryGetFail(t *testing.T) {
sv := share.NewVal[int]() // type is arbitrary
defer sv.Close()
if v, ok := sv.TryGet(); ok {
t.Errorf("Val.TryGet() succeeded (returned %v) before value was set; expected to fail", v)
}
}
// Val.TryGet() after Set should succeed.
func TestValTryGet(t *testing.T) {
sv := share.NewVal[string]()
defer sv.Close()
v := "foo"
sv.Set <- v
ret, ok := sv.TryGet()
if !ok {
t.Error("Val.TryGet() failed")
}
if *ret != v {
t.Errorf("Val.TryGet() returned %v; expected %v", ret, v)
}
}
func verifySameVal[T comparable](sv share.Val[T], v T, t *testing.T) {
ret := sv.Get()
if ret != v {
t.Errorf("Val.Get() = %v; expected %v", ret, v)
}
}
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