package auth

import "testing"

func TestValidEmail(t *testing.T) {
	valid := []string{"a@b.com", "user.name+tag@sub.example.co", "x@y.io"}
	for _, e := range valid {
		if !ValidEmail(e) {
			t.Errorf("expected %q to be valid", e)
		}
	}
	invalid := []string{"", "no-at", "a@", "@b.com", "a@b", "a@@b.com", "a@.com", "a@b."}
	for _, e := range invalid {
		if ValidEmail(e) {
			t.Errorf("expected %q to be invalid", e)
		}
	}
}

func TestIsDisposable(t *testing.T) {
	if !IsDisposable("foo@mailinator.com") {
		t.Error("mailinator.com should be disposable")
	}
	if !IsDisposable("foo@MAILINATOR.com") { // case-insensitive
		t.Error("disposable check should be case-insensitive")
	}
	if IsDisposable("foo@gmail.com") {
		t.Error("gmail.com should not be disposable")
	}
	if IsDisposable("no-domain") {
		t.Error("address without domain should not be flagged disposable")
	}
}

func TestNormalizeEmail(t *testing.T) {
	if got := NormalizeEmail("  User@Example.COM "); got != "user@example.com" {
		t.Errorf("NormalizeEmail = %q", got)
	}
}