lncli: add test for parseChanPoint

cmd/lncli/commands_test.go

@@ -0,0 +1,70 @@
+package main
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+// TestParseChanPoint tests parseChanPoint with various
+// valid and invalid input values and verifies the output.
+func TestParseChanPoint(t *testing.T) {
+	testCases := []struct {
+		channelPoinStr    string
+		channelPointIsNil bool
+		outputIndex       uint32
+		err               error
+	}{
+		{
+			"24581424081379576b4a7580ace91db10925d996a2a8d45c8034" +
+				"3a5a467dc0bc:0",
+			false,
+			0,
+			nil,
+		}, {
+			"24581424081379576b4a7580ace91db10925d996a2a8d45c8034" +
+				"3a5a467dc0bc:4",
+			false,
+			4,
+			nil,
+		}, {
+			":",
+			true,
+			0,
+			errBadChanPoint,
+		}, {
+			":0",
+			true,
+			0,
+			errBadChanPoint,
+		}, {
+			"24581424081379576b4a7580ace91db10925d996a2a8d45c8034" +
+				"3a5a467dc0bc:",
+			true,
+			0,
+			errBadChanPoint,
+		}, {
+			"24581424081379576b4a7580ace91db10925d996a2a8d45c8034" +
+				"3a5a467dc0bc:string",
+			true,
+			0,
+			errors.New("unable to decode output index: strconv." +
+				"ParseInt: parsing \"string\": invalid syntax"),
+		}, {
+			"not_hex:0",
+			true,
+			0,
+			errors.New("unable to parse hex string: encoding/hex:" +
+				" invalid byte: U+006E 'n'"),
+		},
+	}
+	for _, tc := range testCases {
+		cp, err := parseChanPoint(tc.channelPoinStr)
+		require.Equal(t, tc.err, err)
+		require.Equal(t, tc.channelPointIsNil, cp == nil)
+		if !tc.channelPointIsNil {
+			require.Equal(t, tc.outputIndex, cp.OutputIndex)
+		}
+	}
+}