1//===- llvm/unittest/Support/raw_ostream_test.cpp - raw_ostream tests -----===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "llvm/Support/Format.h"
10#include "llvm/Support/raw_sha1_ostream.h"
11#include "gtest/gtest.h"
12
13#include <string>
14
15using namespace llvm;
16
17static std::string toHex(ArrayRef<uint8_t> Input) {
18 static const char *const LUT = "0123456789ABCDEF";
19 size_t Length = Input.size();
20
21 std::string Output;
22 Output.reserve(res: 2 * Length);
23 for (size_t i = 0; i < Length; ++i) {
24 const unsigned char c = Input[i];
25 Output.push_back(c: LUT[c >> 4]);
26 Output.push_back(c: LUT[c & 15]);
27 }
28 return Output;
29}
30
31TEST(raw_sha1_ostreamTest, Basic) {
32 llvm::raw_sha1_ostream Sha1Stream;
33 Sha1Stream << "Hello World!";
34 auto Hash = toHex(Input: Sha1Stream.sha1());
35
36 ASSERT_EQ("2EF7BDE608CE5404E97D5F042F95F89F1C232871", Hash);
37}
38
39TEST(sha1_hash_test, Basic) {
40 ArrayRef<uint8_t> Input((const uint8_t *)"Hello World!", 12);
41 std::array<uint8_t, 20> Vec = SHA1::hash(Data: Input);
42 std::string Hash = toHex(Input: Vec);
43 ASSERT_EQ("2EF7BDE608CE5404E97D5F042F95F89F1C232871", Hash);
44}
45
46TEST(sha1_hash_test, Update) {
47 SHA1 sha1;
48 std::string Input = "123456789012345678901234567890";
49 ASSERT_EQ(Input.size(), 30UL);
50 // 3 short updates.
51 sha1.update(Str: Input);
52 sha1.update(Str: Input);
53 sha1.update(Str: Input);
54 // Long update that gets into the optimized loop with prefix/suffix.
55 sha1.update(Str: Input + Input + Input + Input);
56 // 18 bytes buffered now.
57
58 std::string Hash = toHex(Input: sha1.final());
59 ASSERT_EQ("3E4A614101AD84985AB0FE54DC12A6D71551E5AE", Hash);
60}
61
62// Check that getting the intermediate hash in the middle of the stream does
63// not invalidate the final result.
64TEST(raw_sha1_ostreamTest, Intermediate) {
65 llvm::raw_sha1_ostream Sha1Stream;
66 Sha1Stream << "Hello";
67 auto Hash = toHex(Input: Sha1Stream.sha1());
68
69 ASSERT_EQ("F7FF9E8B7BB2E09B70935A5D785E0CC5D9D0ABF0", Hash);
70 Sha1Stream << " World!";
71 Hash = toHex(Input: Sha1Stream.sha1());
72
73 // Compute the non-split hash separately as a reference.
74 llvm::raw_sha1_ostream NonSplitSha1Stream;
75 NonSplitSha1Stream << "Hello World!";
76 auto NonSplitHash = toHex(Input: NonSplitSha1Stream.sha1());
77
78 ASSERT_EQ(NonSplitHash, Hash);
79}
80
81TEST(raw_sha1_ostreamTest, Reset) {
82 llvm::raw_sha1_ostream Sha1Stream;
83 Sha1Stream << "Hello";
84 auto Hash = toHex(Input: Sha1Stream.sha1());
85
86 ASSERT_EQ("F7FF9E8B7BB2E09B70935A5D785E0CC5D9D0ABF0", Hash);
87
88 Sha1Stream.resetHash();
89 Sha1Stream << " World!";
90 Hash = toHex(Input: Sha1Stream.sha1());
91
92 ASSERT_EQ("7447F2A5A42185C8CF91E632789C431830B59067", Hash);
93}
94

source code of llvm/unittests/Support/raw_sha1_ostream_test.cpp