Add yaml test

spec/electra/singleattestation_test.go

@@ -14,10 +14,12 @@
 package electra_test
 
 import (
+	"bytes"
 	"encoding/json"
 	"github.com/attestantio/go-eth2-client/spec/electra"
 	"testing"
 
+	"github.com/goccy/go-yaml"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
@@ -123,3 +125,34 @@ func TestSingleAttestationJSON(t *testing.T) {
 		})
 	}
 }
+
+func TestSingleAttestationYAML(t *testing.T) {
+	tests := []struct {
+		name  string
+		input []byte
+		root  []byte
+		err   string
+	}{
+		{
+			name:  "Good",
+			input: []byte(`{committee_index: '1', attester_index: '200', data: {slot: 100, index: 1, beacon_block_root: '0x000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f', source: {epoch: 1, root: '0x202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f'}, target: {epoch: 2, root: '0x404142434445464748494a4b4c4d4e4f505152535455565758595a5b5c5d5e5f'}}, signature: '0x606162636465666768696a6b6c6d6e6f707172737475767778797a7b7c7d7e7f808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9fa0a1a2a3a4a5a6a7a8a9aaabacadaeafb0b1b2b3b4b5b6b7b8b9babbbcbdbebf'}`),
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			var res electra.SingleAttestation
+			err := yaml.Unmarshal(test.input, &res)
+			if test.err != "" {
+				require.EqualError(t, err, test.err)
+			} else {
+				require.NoError(t, err)
+				rt, err := yaml.Marshal(&res)
+				require.NoError(t, err)
+				assert.Equal(t, string(rt), res.String())
+				rt = bytes.TrimSuffix(rt, []byte("\n"))
+				assert.Equal(t, string(test.input), string(rt))
+			}
+		})
+	}
+}