init: hgmj server initial commit

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-10-08 16:50:13 +08:00
commit 625e89c15d
1870 changed files with 254090 additions and 0 deletions
@@ -0,0 +1,21 @@
+package advgroupser
+
+import "testing"
+
+func TestFormatRatePercentage(t *testing.T) {
+	t.Run("formats decimal rate as percentage", func(t *testing.T) {
+		got := formatRatePercentage(0.1234)
+		want := "12.340%"
+		if got != want {
+			t.Fatalf("expected %s, got %s", want, got)
+		}
+	})
+
+	t.Run("formats zero as zero percentage", func(t *testing.T) {
+		got := formatRatePercentage(0)
+		want := "0.000%"
+		if got != want {
+			t.Fatalf("expected %s, got %s", want, got)
+		}
+	})
+}