lnd.xprv/lnwire/channel_id_test.go

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package lnwire
import "testing"
// TestChannelIDOutPointConversion ensures that the IsChanPoint always
// recognizes its seed OutPoint for all possible values of an output index.
func TestChannelIDOutPointConversion(t *testing.T) {
testChanPoint := *outpoint1
// For a given OutPoint, we'll run through all the possible output
// index values, mutating our test outpoint to match that output index.
for i := uint32(0); i < MaxFundingTxOutputs; i++ {
testChanPoint.Index = i
// With the output index mutated, we'll convert it into a
// ChannelID.
cid := NewChanIDFromOutPoint(&testChanPoint)
// Once the channel point has been converted to a channelID, it
// should recognize its original outpoint.
if !cid.IsChanPoint(&testChanPoint) {
t.Fatalf("channelID not recognized as seed channel "+
"point: cid=%v, op=%v", cid, testChanPoint)
}
}
}
// TestGenPossibleOutPoints ensures taht the GenPossibleOutPoints generates a
// vali set of outpoints for a channelID. A set of outpoints is valid iff, the
// root outpoint (the outpoint that generated the ChannelID) is included in the
// returned set of outpoints.
func TestGenPossibleOutPoints(t *testing.T) {
// We'll first convert out test outpoint into a ChannelID.
testChanPoint := *outpoint1
chanID := NewChanIDFromOutPoint(&testChanPoint)
// With the chan ID created, we'll generate all possible root outpoints
// given this channel ID.
possibleOutPoints := chanID.GenPossibleOutPoints()
// If we run through the generated possible outpoints, the original
// root outpoint MUST be found in this generated set.
var opFound bool
for _, op := range possibleOutPoints {
if op == testChanPoint {
opFound = true
break
}
}
// If we weren't able to locate the original outpoint in the set of
// possible outpoints, then we'll fail the test.
if !opFound {
t.Fatalf("possible outpoints did not contain the root outpoint")
}
}