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58 lines
2.0 KiB
58 lines
2.0 KiB
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "utils/checksum.h"
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#include "gtest/gtest.h"
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namespace libtextclassifier3 {
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namespace {
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TEST(LuhnTest, CorrectlyHandlesSimpleCases) {
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EXPECT_TRUE(VerifyLuhnChecksum("3782 8224 6310 005"));
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EXPECT_FALSE(VerifyLuhnChecksum("0"));
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EXPECT_FALSE(VerifyLuhnChecksum("1"));
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EXPECT_FALSE(VerifyLuhnChecksum("0A"));
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}
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TEST(LuhnTest, CorrectlyVerifiesPaymentCardNumbers) {
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// Fake test numbers.
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EXPECT_TRUE(VerifyLuhnChecksum("3782 8224 6310 005"));
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EXPECT_TRUE(VerifyLuhnChecksum("371449635398431"));
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EXPECT_TRUE(VerifyLuhnChecksum("5610591081018250"));
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EXPECT_TRUE(VerifyLuhnChecksum("38520000023237"));
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EXPECT_TRUE(VerifyLuhnChecksum("6011000990139424"));
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EXPECT_TRUE(VerifyLuhnChecksum("3566002020360505"));
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EXPECT_TRUE(VerifyLuhnChecksum("5105105105105100"));
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EXPECT_TRUE(VerifyLuhnChecksum("4012 8888 8888 1881"));
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}
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TEST(LuhnTest, HandlesWhitespace) {
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EXPECT_TRUE(
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VerifyLuhnChecksum("3782 8224 6310 005 ", /*ignore_whitespace=*/true));
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EXPECT_FALSE(
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VerifyLuhnChecksum("3782 8224 6310 005 ", /*ignore_whitespace=*/false));
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}
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TEST(LuhnTest, HandlesEdgeCases) {
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EXPECT_FALSE(VerifyLuhnChecksum(" ", /*ignore_whitespace=*/true));
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EXPECT_FALSE(VerifyLuhnChecksum(" ", /*ignore_whitespace=*/false));
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EXPECT_FALSE(VerifyLuhnChecksum("", /*ignore_whitespace=*/true));
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EXPECT_FALSE(VerifyLuhnChecksum("", /*ignore_whitespace=*/false));
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}
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} // namespace
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} // namespace libtextclassifier3
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