package com.peachpasswords.autofill

import org.junit.Assert.assertFalse
import org.junit.Assert.assertTrue
import org.junit.Test

/**
 * OTP / 2FA field detection. The autofill framework only sets the `otp`
 * hint when the developer opts in; most don\'t, so the parser falls back to
 * a regex over the field\'s id/hint/text. The regex has to catch the labels
 * real 2FA forms actually use without mis-matching promo / coupon / discount
 * code fields.
 */
class AssistStructureOtpRegexTest {

    private val rx = AssistStructureParser.OTP_HAYSTACK_RX

    @Test fun matches_textbook_2fa_labels() {
        // The original textbook set the regex already covered.
        assertTrue(rx.containsMatchIn("otp"))
        assertTrue(rx.containsMatchIn("2fa"))
        assertTrue(rx.containsMatchIn("mfa"))
        assertTrue(rx.containsMatchIn("one-time password"))
        assertTrue(rx.containsMatchIn("verification code"))
        assertTrue(rx.containsMatchIn("auth code"))
    }

    @Test fun matches_labels_real_forms_use() {
        // These were silent misses before the widening.
        assertTrue(rx.containsMatchIn("verification"))
        assertTrue(rx.containsMatchIn("authentication"))
        assertTrue(rx.containsMatchIn("security code"))
        assertTrue(rx.containsMatchIn("token"))
        assertTrue(rx.containsMatchIn("confirm"))
    }

    @Test fun does_not_match_unrelated_code_fields() {
        // A standalone "code" alone is intentionally absent: promo / coupon
        // / discount fields all use it. Matching them would mis-fill with a
        // TOTP on signup / checkout forms.
        assertFalse(rx.containsMatchIn("code"))
        assertFalse(rx.containsMatchIn("promo code"))
        assertFalse(rx.containsMatchIn("coupon code"))
        assertFalse(rx.containsMatchIn("discount code"))
        assertFalse(rx.containsMatchIn("zip code"))
        assertFalse(rx.containsMatchIn("area code"))
    }
}