.github: add a go workflow for building and testing

.github/workflows/go.yml

@@ -0,0 +1,29 @@
+name: Go
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: 1.23.0
+
+      - name: Examine
+        run: go vet ./...
+
+      - name: Build
+        run: go build -v ./...
+
+      - name: Test
+        run: go test -v ./...

radixdb_test.go

@@ -1,6 +1,9 @@
 package radixdb
 
-import "testing"
+import (
+	"bytes"
+	"testing"
+)
 
 func TestLongestCommonPrefix(t *testing.T) {
 	tests := []struct {
@@ -22,7 +25,7 @@ func TestLongestCommonPrefix(t *testing.T) {
 	for _, test := range tests {
 		subject := longestCommonPrefix(test.a, test.b)
 
-		if string(subject) != string(test.expected) {
+		if !bytes.Equal(subject, test.expected) {
 			t.Errorf("(%q,%q): got:%q, want:%q", test.a, test.b, subject, test.expected)
 		}
 	}