lnd.xprv/htlcswitch/hodl/mask_test.go

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package hodl_test
import (
"testing"
"github.com/lightningnetwork/lnd/htlcswitch/hodl"
)
var hodlMaskTests = []struct {
mask hodl.Mask
flags map[hodl.Flag]struct{}
}{
{
// Check that the empty mask has no active flags.
mask: hodl.MaskNone,
flags: map[hodl.Flag]struct{}{},
},
{
// Check that passing no arguments to MaskFromFlags is
// equivalent to MaskNone.
mask: hodl.MaskFromFlags(),
flags: map[hodl.Flag]struct{}{},
},
{
// Check using Mask to convert a single flag into a Mask only
// reports that flag active.
mask: hodl.ExitSettle.Mask(),
flags: map[hodl.Flag]struct{}{
hodl.ExitSettle: {},
},
},
{
// Check that using MaskFromFlags on a single flag only reports
// that flag active.
mask: hodl.MaskFromFlags(hodl.Commit),
flags: map[hodl.Flag]struct{}{
hodl.Commit: {},
},
},
{
// Check that using MaskFromFlags on some-but-not-all flags
// reports the correct subset of flags as active.
mask: hodl.MaskFromFlags(
hodl.ExitSettle,
hodl.Commit,
hodl.AddIncoming,
hodl.SettleOutgoing,
),
flags: map[hodl.Flag]struct{}{
hodl.ExitSettle: {},
hodl.Commit: {},
hodl.AddIncoming: {},
hodl.SettleOutgoing: {},
},
},
{
// Check that using MaskFromFlags on all known flags reports
// those an no other flags.
mask: hodl.MaskFromFlags(
hodl.ExitSettle,
hodl.AddIncoming,
hodl.SettleIncoming,
hodl.FailIncoming,
hodl.AddOutgoing,
hodl.SettleOutgoing,
hodl.FailOutgoing,
hodl.Commit,
),
flags: map[hodl.Flag]struct{}{
hodl.ExitSettle: {},
hodl.AddIncoming: {},
hodl.SettleIncoming: {},
hodl.FailIncoming: {},
hodl.AddOutgoing: {},
hodl.SettleOutgoing: {},
hodl.FailOutgoing: {},
hodl.Commit: {},
},
},
}
// TestMask iterates through all of the hodlMaskTests, checking that the mask
// correctly reports active for flags in the tests' expected flags, and inactive
// for all others.
func TestMask(t *testing.T) {
if !hodl.DebugBuild {
t.Fatalf("htlcswitch tests must be run with '-tags debug'")
}
for i, test := range hodlMaskTests {
for j := uint32(0); i < 32; i++ {
flag := hodl.Flag(1 << j)
_, shouldBeActive := test.flags[flag]
switch {
case shouldBeActive && !test.mask.Active(flag):
t.Fatalf("hodl mask test #%d -- "+
"expected flag %s to be active",
i, flag)
case !shouldBeActive && test.mask.Active(flag):
t.Fatalf("hodl mask test #%d -- "+
"expected flag %s to be inactive",
i, flag)
}
}
}
}