1 | /* $Id: tstRTJson.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
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2 | /** @file
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3 | * IPRT Testcase - JSON API.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2016-2019 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | *
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17 | * The contents of this file may alternatively be used under the terms
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18 | * of the Common Development and Distribution License Version 1.0
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19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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20 | * VirtualBox OSE distribution, in which case the provisions of the
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21 | * CDDL are applicable instead of those of the GPL.
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22 | *
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23 | * You may elect to license modified versions of this file under the
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24 | * terms and conditions of either the GPL or the CDDL or both.
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25 | */
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26 |
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27 |
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28 | /*********************************************************************************************************************************
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29 | * Header Files *
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30 | *********************************************************************************************************************************/
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31 | #include <iprt/json.h>
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32 |
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33 | #include <iprt/err.h>
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34 | #include <iprt/string.h>
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35 | #include <iprt/test.h>
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36 |
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37 |
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38 | /*********************************************************************************************************************************
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39 | * Global Variables *
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40 | *********************************************************************************************************************************/
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41 | static const char g_szJson[] =
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42 | "{\n"
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43 | " \"integer\": 100,\n"
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44 | " \"number\": 22.22,\n"
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45 | " \"string\": \"test\",\n"
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46 | " \"array\": [1, 2, 3, 4, 5, \"6\"],\n"
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47 | " \"subobject\":\n"
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48 | " {\n"
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49 | " \"false\": false,\n"
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50 | " \"true\": true,\n"
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51 | " \"null\": null\n"
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52 | " }\n"
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53 | "}\n";
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54 |
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55 | /**
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56 | * Some basic tests to detect malformed JSON.
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57 | */
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58 | static void tstBasic(RTTEST hTest)
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59 | {
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60 | RTTestSub(hTest, "Basic valid/malformed tests");
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61 | static struct
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62 | {
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63 | const char *pszJson;
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64 | int iRcResult;
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65 | } const aTests[] =
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66 | {
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67 | { "", VERR_JSON_MALFORMED },
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68 | { ",", VERR_JSON_MALFORMED },
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69 | { ":", VERR_JSON_MALFORMED },
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70 | { " \n\t{", VERR_JSON_MALFORMED },
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71 | { "}", VERR_JSON_MALFORMED },
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72 | { "[", VERR_JSON_MALFORMED },
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73 | { "]", VERR_JSON_MALFORMED },
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74 | { "[ \"test\" : ", VERR_JSON_MALFORMED },
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75 | { "null", VINF_SUCCESS },
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76 | { "true", VINF_SUCCESS },
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77 | { "false", VINF_SUCCESS },
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78 | { "100", VINF_SUCCESS },
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79 | { "\"test\"", VINF_SUCCESS },
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80 | { "{ }", VINF_SUCCESS },
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81 | { "[ ]", VINF_SUCCESS },
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82 | { "[ 100, 200 ]", VINF_SUCCESS },
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83 | { "{ \"1\": 1 }", VINF_SUCCESS },
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84 | { "{ \"1\": 1, \"2\": 2 }", VINF_SUCCESS },
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85 | { "20", VINF_SUCCESS },
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86 | { "-20", VINF_SUCCESS },
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87 | { "{\"positive\":20}", VINF_SUCCESS },
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88 | { "{\"negative\":-20}", VINF_SUCCESS },
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89 | { "\"\\u0001\"", VINF_SUCCESS },
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90 | { "\"\\u000\"", VERR_JSON_INVALID_UTF16_ESCAPE_SEQUENCE },
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91 | { "\"\\u00\"", VERR_JSON_INVALID_UTF16_ESCAPE_SEQUENCE },
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92 | { "\"\\u0\"", VERR_JSON_INVALID_UTF16_ESCAPE_SEQUENCE },
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93 | { "\"\\u\"", VERR_JSON_INVALID_UTF16_ESCAPE_SEQUENCE },
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94 | { "\"\\uGhKl\"", VERR_JSON_INVALID_UTF16_ESCAPE_SEQUENCE },
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95 | { "\"\\u0000z\"", VERR_JSON_INVALID_CODEPOINT },
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96 | { "\"\\uffff\"", VERR_JSON_INVALID_CODEPOINT },
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97 | { "\"\\ufffe\"", VERR_JSON_INVALID_CODEPOINT },
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98 | { "\"\\ufffd\"", VINF_SUCCESS},
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99 | { "\"\\ufffd1\"", VINF_SUCCESS},
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100 | { "\"\\ufffd12\"", VINF_SUCCESS},
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101 | { "\"\\uD801\\udC37\\ud852\\uDf62\"", VINF_SUCCESS }, /* U+10437 U+24B62 */
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102 | { "\"\\uD801 \\udC37\"", VERR_JSON_MISSING_SURROGATE_PAIR },
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103 | { "\"\\uD801udC37\"", VERR_JSON_MISSING_SURROGATE_PAIR },
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104 | { "\"\\uD801\"", VERR_JSON_MISSING_SURROGATE_PAIR },
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105 | { "\"\\uD801\\\"", VERR_JSON_MISSING_SURROGATE_PAIR },
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106 | { "\"\\uD801\\u\"", VERR_JSON_INVALID_UTF16_ESCAPE_SEQUENCE },
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107 | { "\"\\uD801\\ud\"", VERR_JSON_INVALID_UTF16_ESCAPE_SEQUENCE },
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108 | { "\"\\uD801\\udc\"", VERR_JSON_INVALID_UTF16_ESCAPE_SEQUENCE },
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109 | { "\"\\uD801\\udc3\"", VERR_JSON_INVALID_UTF16_ESCAPE_SEQUENCE },
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110 | { "\"\\uD801\\uDc37\"", VINF_SUCCESS},
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111 | { "\"\\uDbff\\uDfff\"", VINF_SUCCESS},
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112 | { "\"\\t\\n\\b\\f\\r\\\\\\/\"", VINF_SUCCESS},
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113 | };
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114 | for (unsigned iTest = 0; iTest < RT_ELEMENTS(aTests); iTest++)
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115 | {
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116 | RTERRINFOSTATIC ErrInfo;
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117 | RTJSONVAL hJsonVal = NIL_RTJSONVAL;
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118 | int rc = RTJsonParseFromString(&hJsonVal, aTests[iTest].pszJson, RTErrInfoInitStatic(&ErrInfo));
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119 | if (rc != aTests[iTest].iRcResult)
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120 | {
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121 | if (RTErrInfoIsSet(&ErrInfo.Core))
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122 | RTTestFailed(hTest, "RTJsonParseFromString() for \"%s\" failed, expected %Rrc got %Rrc\n%s",
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123 | aTests[iTest].pszJson, aTests[iTest].iRcResult, rc, ErrInfo.Core.pszMsg);
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124 | else
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125 | RTTestFailed(hTest, "RTJsonParseFromString() for \"%s\" failed, expected %Rrc got %Rrc",
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126 | aTests[iTest].pszJson, aTests[iTest].iRcResult, rc);
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127 | }
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128 | else if (rc == VERR_JSON_MALFORMED && !RTErrInfoIsSet(&ErrInfo.Core))
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129 | RTTestFailed(hTest, "RTJsonParseFromString() did not return error info for \"%s\" failed", aTests[iTest].pszJson);
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130 | if (RT_SUCCESS(rc))
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131 | {
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132 | if (hJsonVal != NIL_RTJSONVAL)
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133 | RTJsonValueRelease(hJsonVal);
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134 | else
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135 | RTTestFailed(hTest, "RTJsonParseFromString() returned success but no value\n");
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136 | }
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137 | else if (hJsonVal != NIL_RTJSONVAL)
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138 | RTTestFailed(hTest, "RTJsonParseFromString() failed but a JSON value was returned\n");
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139 | }
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140 | }
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141 |
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142 | /**
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143 | * Checks that methods not indended for the given type return the correct error.
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144 | */
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145 | static void tstCorrectnessRcForInvalidType(RTTEST hTest, RTJSONVAL hJsonVal, RTJSONVALTYPE enmType)
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146 | {
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147 | bool fSavedMayPanic = RTAssertSetMayPanic(false);
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148 | bool fSavedQuiet = RTAssertSetQuiet(true);
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149 |
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150 | if ( enmType != RTJSONVALTYPE_OBJECT
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151 | && enmType != RTJSONVALTYPE_ARRAY)
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152 | {
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153 | /* The iterator API should return errors. */
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154 | RTJSONIT hJsonIt = NIL_RTJSONIT;
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155 | RTTEST_CHECK_RC(hTest, RTJsonIteratorBegin(hJsonVal, &hJsonIt), VERR_JSON_VALUE_INVALID_TYPE);
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156 | }
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157 |
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158 | if (enmType != RTJSONVALTYPE_ARRAY)
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159 | {
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160 | /* The Array access methods should return errors. */
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161 | uint32_t cItems = 0;
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162 | RTJSONVAL hJsonValItem = NIL_RTJSONVAL;
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163 | RTTEST_CHECK(hTest, RTJsonValueGetArraySize(hJsonVal) == 0);
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164 | RTTEST_CHECK_RC(hTest, RTJsonValueQueryArraySize(hJsonVal, &cItems), VERR_JSON_VALUE_INVALID_TYPE);
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165 | RTTEST_CHECK_RC(hTest, RTJsonValueQueryByIndex(hJsonVal, 0, &hJsonValItem), VERR_JSON_VALUE_INVALID_TYPE);
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166 | }
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167 |
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168 | if (enmType != RTJSONVALTYPE_OBJECT)
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169 | {
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170 | /* The object access methods should return errors. */
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171 | RTJSONVAL hJsonValMember = NIL_RTJSONVAL;
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172 | RTTEST_CHECK_RC(hTest, RTJsonValueQueryByName(hJsonVal, "test", &hJsonValMember), VERR_JSON_VALUE_INVALID_TYPE);
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173 | }
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174 |
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175 | if (enmType != RTJSONVALTYPE_INTEGER)
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176 | {
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177 | int64_t i64Num = 0;
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178 | RTTEST_CHECK_RC(hTest, RTJsonValueQueryInteger(hJsonVal, &i64Num), VERR_JSON_VALUE_INVALID_TYPE);
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179 | }
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180 |
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181 | if (enmType != RTJSONVALTYPE_NUMBER)
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182 | {
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183 | double rdNum = 0.0;
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184 | RTTEST_CHECK_RC(hTest, RTJsonValueQueryNumber(hJsonVal, &rdNum), VERR_JSON_VALUE_INVALID_TYPE);
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185 | }
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186 |
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187 | if (enmType != RTJSONVALTYPE_STRING)
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188 | {
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189 | const char *psz = NULL;
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190 | RTTEST_CHECK(hTest, RTJsonValueGetString(hJsonVal) == NULL);
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191 | RTTEST_CHECK_RC(hTest, RTJsonValueQueryString(hJsonVal, &psz), VERR_JSON_VALUE_INVALID_TYPE);
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192 | }
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193 |
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194 | RTAssertSetMayPanic(fSavedMayPanic);
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195 | RTAssertSetQuiet(fSavedQuiet);
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196 | }
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197 |
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198 | /**
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199 | * Tests the array accessors.
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200 | */
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201 | static void tstArray(RTTEST hTest, RTJSONVAL hJsonVal)
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202 | {
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203 | uint32_t cItems = 0;
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204 | RTTEST_CHECK(hTest, RTJsonValueGetArraySize(hJsonVal) == 6);
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205 | RTTEST_CHECK_RC_OK(hTest, RTJsonValueQueryArraySize(hJsonVal, &cItems));
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206 | RTTEST_CHECK(hTest, cItems == RTJsonValueGetArraySize(hJsonVal));
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207 |
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208 | for (uint32_t i = 1; i <= 5; i++)
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209 | {
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210 | int64_t i64Num = 0;
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211 | RTJSONVAL hJsonValItem = NIL_RTJSONVAL;
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212 | RTTEST_CHECK_RC_OK_RETV(hTest, RTJsonValueQueryByIndex(hJsonVal, i - 1, &hJsonValItem));
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213 | RTTEST_CHECK(hTest, RTJsonValueGetType(hJsonValItem) == RTJSONVALTYPE_INTEGER);
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214 | RTTEST_CHECK_RC_OK_RETV(hTest, RTJsonValueQueryInteger(hJsonValItem, &i64Num));
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215 | RTTEST_CHECK(hTest, i64Num == (int64_t)i);
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216 | RTTEST_CHECK(hTest, RTJsonValueRelease(hJsonValItem) == 1);
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217 | }
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218 |
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219 | /* Last should be string. */
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220 | const char *pszStr = NULL;
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221 | RTJSONVAL hJsonValItem = NIL_RTJSONVAL;
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222 | RTTEST_CHECK_RC_OK_RETV(hTest, RTJsonValueQueryByIndex(hJsonVal, 5, &hJsonValItem));
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223 | RTTEST_CHECK(hTest, RTJsonValueGetType(hJsonValItem) == RTJSONVALTYPE_STRING);
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224 | RTTEST_CHECK_RC_OK_RETV(hTest, RTJsonValueQueryString(hJsonValItem, &pszStr));
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225 | RTTEST_CHECK(hTest, RTJsonValueGetString(hJsonValItem) == pszStr);
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226 | RTTEST_CHECK(hTest, strcmp(pszStr, "6") == 0);
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227 | RTTEST_CHECK(hTest, RTJsonValueRelease(hJsonValItem) == 1);
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228 | }
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229 |
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230 | /**
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231 | * Tests the iterator API for the given JSON array or object value.
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232 | */
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233 | static void tstIterator(RTTEST hTest, RTJSONVAL hJsonVal)
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234 | {
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235 | RTJSONIT hJsonIt = NIL_RTJSONIT;
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236 | int rc = RTJsonIteratorBegin(hJsonVal, &hJsonIt);
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237 | RTTEST_CHECK(hTest, RT_SUCCESS(rc));
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238 | if (RT_SUCCESS(rc))
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239 | {
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240 | const char *pszName = NULL;
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241 | RTJSONVAL hJsonValMember = NIL_RTJSONVAL;
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242 | rc = RTJsonIteratorQueryValue(hJsonIt, &hJsonValMember, &pszName);
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243 | RTTEST_CHECK(hTest, RT_SUCCESS(rc));
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244 | RTTEST_CHECK(hTest, pszName != NULL);
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245 | RTTEST_CHECK(hTest, hJsonValMember != NIL_RTJSONVAL);
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246 | while (RT_SUCCESS(rc))
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247 | {
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248 | RTJSONVALTYPE enmTypeMember = RTJsonValueGetType(hJsonValMember);
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249 | tstCorrectnessRcForInvalidType(hTest, hJsonValMember, enmTypeMember);
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250 |
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251 | switch (enmTypeMember)
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252 | {
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253 | case RTJSONVALTYPE_OBJECT:
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254 | RTTEST_CHECK(hTest, strcmp(pszName, "subobject") == 0);
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255 | tstIterator(hTest, hJsonValMember);
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256 | break;
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257 | case RTJSONVALTYPE_ARRAY:
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258 | RTTEST_CHECK(hTest, strcmp(pszName, "array") == 0);
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259 | tstArray(hTest, hJsonValMember);
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260 | break;
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261 | case RTJSONVALTYPE_STRING:
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262 | {
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263 | RTTEST_CHECK(hTest, strcmp(pszName, "string") == 0);
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264 | const char *pszStr = NULL;
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265 | RTTEST_CHECK_RC_OK(hTest, RTJsonValueQueryString(hJsonValMember, &pszStr));
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266 | RTTEST_CHECK(hTest, strcmp(pszStr, "test") == 0);
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267 | break;
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268 | }
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269 | case RTJSONVALTYPE_INTEGER:
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270 | {
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271 | RTTEST_CHECK(hTest, strcmp(pszName, "integer") == 0);
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272 | int64_t i64Num = 0;
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273 | RTTEST_CHECK_RC_OK(hTest, RTJsonValueQueryInteger(hJsonValMember, &i64Num));
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274 | RTTEST_CHECK(hTest, i64Num == 100);
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275 | break;
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276 | }
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277 | case RTJSONVALTYPE_NUMBER:
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278 | {
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279 | RTTEST_CHECK(hTest, strcmp(pszName, "number") == 0);
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280 | double rdNum = 0.0;
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281 | RTTEST_CHECK_RC_OK(hTest, RTJsonValueQueryNumber(hJsonValMember, &rdNum));
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282 | double const rdExpect = 22.22;
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283 | RTTEST_CHECK(hTest, rdNum == rdExpect);
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284 | break;
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285 | }
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286 | case RTJSONVALTYPE_NULL:
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287 | RTTEST_CHECK(hTest, strcmp(pszName, "null") == 0);
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288 | break;
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289 | case RTJSONVALTYPE_TRUE:
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290 | RTTEST_CHECK(hTest, strcmp(pszName, "true") == 0);
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291 | break;
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292 | case RTJSONVALTYPE_FALSE:
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293 | RTTEST_CHECK(hTest, strcmp(pszName, "false") == 0);
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294 | break;
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295 | default:
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296 | RTTestFailed(hTest, "Invalid JSON value type %u returned\n", enmTypeMember);
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297 | }
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298 |
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299 | RTTEST_CHECK(hTest, RTJsonValueRelease(hJsonValMember) == 1);
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300 | rc = RTJsonIteratorNext(hJsonIt);
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301 | RTTEST_CHECK(hTest, rc == VINF_SUCCESS || rc == VERR_JSON_ITERATOR_END);
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302 | if (RT_SUCCESS(rc))
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303 | RTTEST_CHECK_RC_OK(hTest, RTJsonIteratorQueryValue(hJsonIt, &hJsonValMember, &pszName));
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304 | }
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305 | RTJsonIteratorFree(hJsonIt);
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306 | }
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307 | }
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308 |
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309 | /**
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310 | * Test that the parser returns the correct values for a valid JSON.
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311 | */
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312 | static void tstCorrectness(RTTEST hTest)
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313 | {
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314 | RTTestSub(hTest, "Correctness");
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315 |
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316 | RTJSONVAL hJsonVal = NIL_RTJSONVAL;
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317 | RTTEST_CHECK_RC_OK_RETV(hTest, RTJsonParseFromString(&hJsonVal, g_szJson, NULL));
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318 |
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319 | if (hJsonVal != NIL_RTJSONVAL)
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320 | {
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321 | RTJSONVALTYPE enmType = RTJsonValueGetType(hJsonVal);
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322 | if (enmType == RTJSONVALTYPE_OBJECT)
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323 | {
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324 | /* Excercise the other non object APIs to return VERR_JSON_VALUE_INVALID_TYPE. */
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325 | tstCorrectnessRcForInvalidType(hTest, hJsonVal, enmType);
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326 | tstIterator(hTest, hJsonVal);
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327 | }
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328 | else
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329 | RTTestFailed(hTest, "RTJsonParseFromString() returned an invalid JSON value, expected OBJECT got %u\n", enmType);
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330 | RTTEST_CHECK(hTest, RTJsonValueRelease(hJsonVal) == 0);
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331 | }
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332 | else
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333 | RTTestFailed(hTest, "RTJsonParseFromString() returned success but no value\n");
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334 | }
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335 |
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336 | int main(int argc, char **argv)
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337 | {
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338 | RTTEST hTest;
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339 | int rc = RTTestInitExAndCreate(argc, &argv, 0, "tstRTJson", &hTest);
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340 | if (rc)
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341 | return rc;
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342 | RTTestBanner(hTest);
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343 |
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344 | tstBasic(hTest);
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345 | tstCorrectness(hTest);
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346 | for (int i = 1; i < argc; i++)
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347 | {
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348 | RTTestSubF(hTest, "file %Rbn", argv[i]);
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349 | RTERRINFOSTATIC ErrInfo;
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350 | RTJSONVAL hFileValue = NIL_RTJSONVAL;
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351 | rc = RTJsonParseFromFile(&hFileValue, argv[i], RTErrInfoInitStatic(&ErrInfo));
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352 | if (RT_SUCCESS(rc))
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353 | RTJsonValueRelease(hFileValue);
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354 | else if (RTErrInfoIsSet(&ErrInfo.Core))
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355 | RTTestFailed(hTest, "%Rrc - %s", rc, ErrInfo.Core.pszMsg);
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356 | else
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357 | RTTestFailed(hTest, "%Rrc", rc);
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358 | }
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359 |
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360 | /*
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361 | * Summary.
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362 | */
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363 | return RTTestSummaryAndDestroy(hTest);
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364 | }
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365 |
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