package config

import "testing"

func TestMetricsAddressIsExplicitAndValidated(t *testing.T) {
	base := map[string]string{"ORBIT_MYSQL_DSN": "private-dsn"}
	get := func(k string) string { return base[k] }
	c, err := FromEnv(get)
	if err != nil || c.MetricsAddr != "" {
		t.Fatal("metrics must be disabled by default", err)
	}
	for _, addr := range []string{"127.0.0.1:0", "[::1]:9090", "0.0.0.0:9090"} {
		base["ORBIT_METRICS_ADDR"] = addr
		c, err = FromEnv(get)
		if err != nil || c.MetricsAddr != addr {
			t.Fatal("valid explicit address rejected", addr, err)
		}
	}
	for _, addr := range []string{"bad", ":secret", "127.0.0.1:-1", ":65536", "http://127.0.0.1:9000"} {
		base["ORBIT_METRICS_ADDR"] = addr
		if _, err = FromEnv(get); err == nil {
			t.Fatal("invalid address accepted", addr)
		}
	}
}