package ratelimit

import "testing"

func TestIdentifierHashDoesNotExposeIdentifier(t *testing.T) {
	identifier := "192.0.2.10"
	first := IdentifierHash(identifier)
	if len(first) != 32 || first == identifier || first != IdentifierHash(identifier) {
		t.Fatalf("unexpected identifier hash: %s", first)
	}
	if first == IdentifierHash("192.0.2.11") {
		t.Fatal("different identifiers should not share a hash")
	}
}

func TestNewRejectsInvalidPolicy(t *testing.T) {
	if _, err := New(nil, "", Policy{}); err == nil {
		t.Fatal("invalid limiter configuration should fail")
	}
}

func TestNewPoliciesRejectsInvalidScopedPolicy(t *testing.T) {
	if _, err := NewPolicies(nil, "prefix", map[string]Policy{"device": {RatePerSecond: 1, Burst: 1}}); err == nil {
		t.Fatal("nil Redis client should fail")
	}
}