refactor: Make testSnapshots disabled in default and minor tweaks

plugins/testsnapshots/plugin.go

@@ -16,7 +16,7 @@ const (
 
 var (
 	// Plugin is the plugin instance of the bootstrap plugin.
-	Plugin = node.NewPlugin(PluginName, node.Enabled, configure, run)
+	Plugin = node.NewPlugin(PluginName, node.Disabled, configure, run)
 	log    *logger.Logger
 
 	// addresses for snapshots

tools/integration-tests/tester/framework/docker.go

@@ -90,6 +90,7 @@ func (d *DockerContainer) CreateGoShimmerPeer(config GoShimmerConfig) error {
 				}
 				if config.Faucet {
 					plugins = append(plugins, "faucet")
+					plugins = append(plugins, "testSnapshots")
 				}
 				return strings.Join(plugins[:], ",")
 			}()),

tools/integration-tests/tester/tests/testutil.go

@@ -159,16 +159,21 @@ func SendIotaValueMessages(t *testing.T, from *framework.Peer, to *framework.Pee
 	inputAddr := from.Seed().Address(0)
 	outputAddr := to.Seed().Address(0)
 
-	// abort if no unspent outputs
-	if addrBalance[inputAddr.String()][balance.ColorIOTA] < sentValue {
-		return true, ""
-	}
-
 	// prepare inputs
 	resp, err := from.GetUnspentOutputs([]string{inputAddr.String()})
 	require.NoErrorf(t, err, "Could not get unspent outputs on %s", from.String())
+
+	// abort if no unspent outputs
+	if len(resp.UnspentOutputs[0].OutputIDs) == 0 {
+		return true, ""
+	}
 	availableValue := resp.UnspentOutputs[0].OutputIDs[0].Balances[0].Value
 
+	//abort if the balance is not enough
+	if availableValue < sentValue {
+		return true, ""
+	}
+
 	out, err := transaction.OutputIDFromBase58(resp.UnspentOutputs[0].OutputIDs[0].ID)
 	require.NoErrorf(t, err, "Invalid unspent outputs ID on %s", from.String())
 	inputs := transaction.NewInputs([]transaction.OutputID{out}...)