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