Add tests

util/ethereum_test.go

@@ -0,0 +1,40 @@
+package util
+
+import (
+	"encoding/hex"
+	"testing"
+
+	"github.com/ethereum/go-ethereum/accounts"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAccountsTextHash(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    []byte
+		expected string
+	}{
+		{
+			name:     "Example message",
+			input:    []byte("foo bar"),
+			expected: "475d68f61c0282c2e194d37d855756f36f73a3f61d1ebbe1eaa42df9e2fe6934",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			resultBytes := accounts.TextHash(tt.input)
+			resultHash := common.BytesToHash(resultBytes)
+
+			assert.Equal(t, common.HexToHash(tt.expected), resultHash, "Hash mismatch")
+
+			// Additional check: verify the length of the hash
+			assert.Equal(t, 32, len(resultHash), "Hash length should be 32 bytes")
+
+			// Print the hash in hexadecimal format for visual inspection
+			t.Logf("Input: %s", string(tt.input))
+			t.Logf("Resulting hash: 0x%s", hex.EncodeToString(resultHash.Bytes()))
+		})
+	}
+}