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annotate unittests/Support/DataExtractorTest.cpp @ 56:bdef5c940791

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copy the previous function's return type to return value
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 23 Jan 2014 23:14:57 +0900
parents 95c75e76d11b
children 54457678186b
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1 //===- llvm/unittest/Support/DataExtractorTest.cpp - DataExtractor tests --===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9
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10 #include "gtest/gtest.h"
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11 #include "llvm/Support/DataExtractor.h"
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12 using namespace llvm;
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13
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14 namespace {
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15
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16 const char numberData[] = "\x80\x90\xFF\xFF\x80\x00\x00\x00";
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17 const char stringData[] = "hellohello\0hello";
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18 const char leb128data[] = "\xA6\x49";
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19 const char bigleb128data[] = "\xAA\xA9\xFF\xAA\xFF\xAA\xFF\x4A";
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20
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21 TEST(DataExtractorTest, OffsetOverflow) {
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22 DataExtractor DE(StringRef(numberData, sizeof(numberData)-1), false, 8);
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23 EXPECT_FALSE(DE.isValidOffsetForDataOfSize(-2U, 5));
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24 }
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25
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26 TEST(DataExtractorTest, UnsignedNumbers) {
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27 DataExtractor DE(StringRef(numberData, sizeof(numberData)-1), false, 8);
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28 uint32_t offset = 0;
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29
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30 EXPECT_EQ(0x80U, DE.getU8(&offset));
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31 EXPECT_EQ(1U, offset);
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32 offset = 0;
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33 EXPECT_EQ(0x8090U, DE.getU16(&offset));
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34 EXPECT_EQ(2U, offset);
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35 offset = 0;
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36 EXPECT_EQ(0x8090FFFFU, DE.getU32(&offset));
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37 EXPECT_EQ(4U, offset);
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38 offset = 0;
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39 EXPECT_EQ(0x8090FFFF80000000ULL, DE.getU64(&offset));
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40 EXPECT_EQ(8U, offset);
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41 offset = 0;
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42 EXPECT_EQ(0x8090FFFF80000000ULL, DE.getAddress(&offset));
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43 EXPECT_EQ(8U, offset);
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44 offset = 0;
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45
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46 uint32_t data[2];
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47 EXPECT_EQ(data, DE.getU32(&offset, data, 2));
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48 EXPECT_EQ(0x8090FFFFU, data[0]);
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49 EXPECT_EQ(0x80000000U, data[1]);
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50 EXPECT_EQ(8U, offset);
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51 offset = 0;
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52
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53 // Now for little endian.
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54 DE = DataExtractor(StringRef(numberData, sizeof(numberData)-1), true, 4);
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55 EXPECT_EQ(0x9080U, DE.getU16(&offset));
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56 EXPECT_EQ(2U, offset);
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57 offset = 0;
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58 EXPECT_EQ(0xFFFF9080U, DE.getU32(&offset));
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59 EXPECT_EQ(4U, offset);
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60 offset = 0;
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61 EXPECT_EQ(0x80FFFF9080ULL, DE.getU64(&offset));
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62 EXPECT_EQ(8U, offset);
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63 offset = 0;
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64 EXPECT_EQ(0xFFFF9080U, DE.getAddress(&offset));
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65 EXPECT_EQ(4U, offset);
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66 offset = 0;
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67
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68 EXPECT_EQ(data, DE.getU32(&offset, data, 2));
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69 EXPECT_EQ(0xFFFF9080U, data[0]);
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70 EXPECT_EQ(0x80U, data[1]);
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71 EXPECT_EQ(8U, offset);
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72 }
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73
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74 TEST(DataExtractorTest, SignedNumbers) {
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75 DataExtractor DE(StringRef(numberData, sizeof(numberData)-1), false, 8);
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76 uint32_t offset = 0;
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77
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78 EXPECT_EQ(-128, DE.getSigned(&offset, 1));
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79 EXPECT_EQ(1U, offset);
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80 offset = 0;
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81 EXPECT_EQ(-32624, DE.getSigned(&offset, 2));
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82 EXPECT_EQ(2U, offset);
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83 offset = 0;
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84 EXPECT_EQ(-2137980929, DE.getSigned(&offset, 4));
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85 EXPECT_EQ(4U, offset);
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86 offset = 0;
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87 EXPECT_EQ(-9182558167379214336LL, DE.getSigned(&offset, 8));
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88 EXPECT_EQ(8U, offset);
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89 }
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90
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91 TEST(DataExtractorTest, Strings) {
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92 DataExtractor DE(StringRef(stringData, sizeof(stringData)-1), false, 8);
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93 uint32_t offset = 0;
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94
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95 EXPECT_EQ(stringData, DE.getCStr(&offset));
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96 EXPECT_EQ(11U, offset);
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97 EXPECT_EQ(NULL, DE.getCStr(&offset));
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98 EXPECT_EQ(11U, offset);
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99 }
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100
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101 TEST(DataExtractorTest, LEB128) {
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102 DataExtractor DE(StringRef(leb128data, sizeof(leb128data)-1), false, 8);
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103 uint32_t offset = 0;
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104
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105 EXPECT_EQ(9382ULL, DE.getULEB128(&offset));
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106 EXPECT_EQ(2U, offset);
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107 offset = 0;
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108 EXPECT_EQ(-7002LL, DE.getSLEB128(&offset));
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109 EXPECT_EQ(2U, offset);
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110
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111 DataExtractor BDE(StringRef(bigleb128data, sizeof(bigleb128data)-1), false,8);
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112 offset = 0;
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113 EXPECT_EQ(42218325750568106ULL, BDE.getULEB128(&offset));
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114 EXPECT_EQ(8U, offset);
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115 offset = 0;
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116 EXPECT_EQ(-29839268287359830LL, BDE.getSLEB128(&offset));
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117 EXPECT_EQ(8U, offset);
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118 }
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119
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120 }