1 //===- BitstreamReaderTest.cpp - Tests for BitstreamReader ----------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 #include "llvm/Bitcode/BitstreamReader.h"
11 #include "gtest/gtest.h"
12
13 using namespace llvm;
14
15 namespace {
16
TEST(BitstreamReaderTest,AtEndOfStream)17 TEST(BitstreamReaderTest, AtEndOfStream) {
18 uint8_t Bytes[4] = {
19 0x00, 0x01, 0x02, 0x03
20 };
21 BitstreamReader Reader(std::begin(Bytes), std::end(Bytes));
22 BitstreamCursor Cursor(Reader);
23
24 EXPECT_FALSE(Cursor.AtEndOfStream());
25 (void)Cursor.Read(8);
26 EXPECT_FALSE(Cursor.AtEndOfStream());
27 (void)Cursor.Read(24);
28 EXPECT_TRUE(Cursor.AtEndOfStream());
29
30 Cursor.JumpToBit(0);
31 EXPECT_FALSE(Cursor.AtEndOfStream());
32
33 Cursor.JumpToBit(32);
34 EXPECT_TRUE(Cursor.AtEndOfStream());
35 }
36
TEST(BitstreamReaderTest,AtEndOfStreamJump)37 TEST(BitstreamReaderTest, AtEndOfStreamJump) {
38 uint8_t Bytes[4] = {
39 0x00, 0x01, 0x02, 0x03
40 };
41 BitstreamReader Reader(std::begin(Bytes), std::end(Bytes));
42 BitstreamCursor Cursor(Reader);
43
44 Cursor.JumpToBit(32);
45 EXPECT_TRUE(Cursor.AtEndOfStream());
46 }
47
TEST(BitstreamReaderTest,AtEndOfStreamEmpty)48 TEST(BitstreamReaderTest, AtEndOfStreamEmpty) {
49 uint8_t Dummy = 0xFF;
50 BitstreamReader Reader(&Dummy, &Dummy);
51 BitstreamCursor Cursor(Reader);
52
53 EXPECT_TRUE(Cursor.AtEndOfStream());
54 }
55
56 } // end anonymous namespace
57