llvm/unittests/Support/Base64Test.cpp

   1 //===- llvm/unittest/Support/Base64Test.cpp - Base64 tests
   2 //--------------------===//
   3 //
   4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   5 // See https://llvm.org/LICENSE.txt for license information.
   6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file implements unit tests for the Base64 functions.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "llvm/Support/Base64.h"
  15 #include "llvm/ADT/StringRef.h"
  16 #include "gtest/gtest.h"
  17
  18 using namespace llvm;
  19
  20 namespace {
  21 /// Tests an arbitrary set of bytes passed as \p Input.
  22 void TestBase64(StringRef Input, StringRef Final) {
  23   auto Res = encodeBase64(Input);
  24   EXPECT_EQ(Res, Final);
  25 }
  26
  27 } // namespace
  28
  29 TEST(Base64Test, Base64) {
  30   // from: https://tools.ietf.org/html/rfc4648#section-10
  31   TestBase64("", "");
  32   TestBase64("f", "Zg==");
  33   TestBase64("fo", "Zm8=");
  34   TestBase64("foo", "Zm9v");
  35   TestBase64("foob", "Zm9vYg==");
  36   TestBase64("fooba", "Zm9vYmE=");
  37   TestBase64("foobar", "Zm9vYmFy");
  38
  39   // With non-printable values.
  40   char NonPrintableVector[] = {0x00, 0x00, 0x00,       0x46,
  41                                0x00, 0x08, (char)0xff, (char)0xee};
  42   TestBase64({NonPrintableVector, sizeof(NonPrintableVector)}, "AAAARgAI/+4=");
  43
  44   // Large test case
  45   char LargeVector[] = {0x54, 0x68, 0x65, 0x20, 0x71, 0x75, 0x69, 0x63, 0x6b,
  46                         0x20, 0x62, 0x72, 0x6f, 0x77, 0x6e, 0x20, 0x66, 0x6f,
  47                         0x78, 0x20, 0x6a, 0x75, 0x6d, 0x70, 0x73, 0x20, 0x6f,
  48                         0x76, 0x65, 0x72, 0x20, 0x31, 0x33, 0x20, 0x6c, 0x61,
  49                         0x7a, 0x79, 0x20, 0x64, 0x6f, 0x67, 0x73, 0x2e};
  50   TestBase64({LargeVector, sizeof(LargeVector)},
  51              "VGhlIHF1aWNrIGJyb3duIGZveCBqdW1wcyBvdmVyIDEzIGxhenkgZG9ncy4=");
  52 }