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111
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1 -- CXB4007.A
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2 --
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3 -- Grant of Unlimited Rights
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4 --
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5 -- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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6 -- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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7 -- unlimited rights in the software and documentation contained herein.
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8 -- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
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9 -- this public release, the Government intends to confer upon all
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10 -- recipients unlimited rights equal to those held by the Government.
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11 -- These rights include rights to use, duplicate, release or disclose the
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12 -- released technical data and computer software in whole or in part, in
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13 -- any manner and for any purpose whatsoever, and to have or permit others
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14 -- to do so.
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15 --
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16 -- DISCLAIMER
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17 --
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18 -- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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19 -- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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20 -- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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21 -- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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22 -- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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23 -- PARTICULAR PURPOSE OF SAID MATERIAL.
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24 --*
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25 --
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26 -- OBJECTIVE:
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27 -- Check that the function Valid with Byte_Array and Binary_Format
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28 -- parameters returns True if the Byte_Array parameter corresponds
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29 -- to any value inside the range of type Num.
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30 -- Check that function Valid returns False if the Byte_Array parameter
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31 -- corresponds to a value outside the range of Num.
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32 --
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33 -- Check that function Length with Binary_Format parameter will return
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34 -- the minimum length of a Byte_Array value required to hold any value
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35 -- of decimal type Num.
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36 --
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37 -- Check that function To_Decimal with Byte_Array and Binary_Format
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38 -- parameters will return a decimal type value that corresponds to
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39 -- parameter Item (of type Byte_Array) under the specified Format.
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40 --
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41 -- Check that Conversion_Error is propagated by function To_Decimal if
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42 -- the Byte_Array parameter Item represents a decimal value outside the
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43 -- range of decimal type Num.
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44 --
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45 -- Check that function To_Binary will produce a Byte_Array result that
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46 -- corresponds to the decimal type parameter Item, under the specified
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47 -- Binary_Format.
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48 --
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49 -- TEST DESCRIPTION:
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50 -- This test uses several instantiations of generic package
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51 -- Decimal_Conversions to provide appropriate test material.
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52 -- This test uses the function To_Binary to create all Byte_Array
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53 -- parameter values used in calls to functions Valid and To_Decimal.
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54 -- The function Valid is tested with parameters to provide both
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55 -- valid and invalid expected results. This test also checks that
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56 -- Function To_Decimal produces expected results in cases where each
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57 -- of the three predefined Binary_Format constants are used in the
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58 -- function calls. In addition, the prescribed propagation of
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59 -- Conversion_Error by function To_Decimal is verified.
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60 --
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61 -- APPLICABILITY CRITERIA:
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62 -- This test is applicable to all implementations that provide
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63 -- package Interfaces.COBOL. If an implementation provides
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64 -- package Interfaces.COBOL, this test must compile, execute, and
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65 -- report "PASSED".
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66 --
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67 --
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68 -- CHANGE HISTORY:
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69 -- 14 Feb 96 SAIC Initial release for 2.1.
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70 -- 30 May 96 SAIC Incorporated reviewer comments for ACVC 2.1.
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71 -- 27 Oct 96 SAIC Incorporated reviewer comments.
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72 -- 05 JAN 98 EDS Remove incorrect subtest.
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73 --!
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74
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75 with Report;
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76 with Ada.Exceptions;
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77 with Interfaces.COBOL; -- N/A => ERROR
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78
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79 procedure CXB4007 is
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80 begin
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81
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82 Report.Test ("CXB4007", "Check that functions Valid, Length, To_Decimal " &
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83 "and To_Binary specific to Byte_Array and " &
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84 "Binary_Format parameters produce correct results");
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85
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86 Test_Block:
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87 declare
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88
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89 use Interfaces.COBOL;
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90 use Ada.Exceptions;
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91 use type Interfaces.COBOL.Numeric;
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92
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93 type Decimal_Type_1 is delta 0.1 digits 6;
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94 type Decimal_Type_2 is delta 0.01 digits 8;
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95 type Decimal_Type_3 is delta 0.001 digits 10;
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96 type Decimal_Type_4 is delta 0.0001 digits 12;
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97
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98 package Pack_1 is new Decimal_Conversions(Decimal_Type_1);
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99 package Pack_2 is new Decimal_Conversions(Decimal_Type_2);
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100 package Pack_3 is new Decimal_Conversions(Decimal_Type_3);
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101 package Pack_4 is new Decimal_Conversions(Decimal_Type_4);
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102
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103 TC_Dec_1 : Decimal_Type_1 := 12345.6;
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104 TC_Dec_2 : Decimal_Type_2 := 123456.78;
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105 TC_Dec_3 : Decimal_Type_3 := 1234567.890;
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106 TC_Dec_4 : Decimal_Type_4 := 12345678.9012;
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107 TC_Min_Length : Natural := 1;
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108 TC_Max_Length : Natural := 16;
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109 TC_Valid : Boolean := False;
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110
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111 begin
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112
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113 -- Check that the function Valid with Byte_Array and Binary_Format
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114 -- parameters returns True if the Byte_Array parameter corresponds to
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115 -- any value inside the range of type Num.
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116
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117 if not Pack_1.Valid(Item => Pack_1.To_Binary(TC_Dec_1,
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118 High_Order_First),
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119 Format => High_Order_First) or
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120 not Pack_1.Valid(Pack_1.To_Binary(0.0, Low_Order_First),
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121 Format => Low_Order_First)
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122 then
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123 Report.Failed("Incorrect result from function Valid, using " &
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124 "parameters that should return a positive result - 1");
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125 end if;
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126
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127 TC_Valid := (Pack_2.Valid(Pack_2.To_Binary(TC_Dec_2, High_Order_First),
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128 Format => High_Order_First) and
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129 Pack_2.Valid(Pack_2.To_Binary(0.01, Low_Order_First),
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130 Format => Low_Order_First));
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131 if not TC_Valid then
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132 Report.Failed("Incorrect result from function Valid, using " &
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133 "parameters that should return a positive result - 2");
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134 end if;
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135
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136 if not Pack_3.Valid(Item => Pack_3.To_Binary(TC_Dec_3,
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137 Low_Order_First),
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138 Format => Low_Order_First) or
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139 not Pack_3.Valid(Pack_3.To_Binary(0.001, High_Order_First),
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140 Format => High_Order_First) or
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141 not Pack_3.Valid(Pack_3.To_Binary(123.456, Native_Binary),
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142 Native_Binary)
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143 then
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144 Report.Failed("Incorrect result from function Valid, using " &
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145 "parameters that should return a positive result - 3");
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146 end if;
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147
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148
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149 -- Check that function Valid returns False if the Byte_Array parameter
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150 -- corresponds to a value outside the range of Num.
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151 -- Note: use a Byte_Array value Item created by an instantiation of
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152 -- To_Binary with a larger Num type as the generic formal.
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153
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154 if Pack_1.Valid(Item => Pack_2.To_Binary(TC_Dec_2, Low_Order_First),
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155 Format => Low_Order_First) or
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156 Pack_2.Valid(Pack_3.To_Binary(TC_Dec_3, High_Order_First),
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157 Format => High_Order_First) or
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158 Pack_3.Valid(Pack_4.To_Binary(TC_Dec_4, Native_Binary),
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159 Native_Binary)
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160 then
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161 Report.Failed("Incorrect result from function Valid, using " &
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162 "parameters that should return a negative result");
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163 end if;
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164
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165
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166 -- Check that function Length with Binary_Format parameter will return
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167 -- the minimum length of a Byte_Array value required to hold any value
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168 -- of decimal type Num.
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169
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170 if not (Pack_1.Length(Native_Binary) >= TC_Min_Length and
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171 Pack_1.Length(Low_Order_First) <= TC_Max_Length and
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172 Pack_2.Length(High_Order_First) >= TC_Min_Length and
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173 Pack_2.Length(Native_Binary) <= TC_Max_Length and
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174 Pack_3.Length(Low_Order_First) >= TC_Min_Length and
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175 Pack_3.Length(High_Order_First) <= TC_Max_Length and
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176 Pack_4.Length(Native_Binary) >= TC_Min_Length and
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177 Pack_4.Length(Low_Order_First) <= TC_Max_Length)
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178 then
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179 Report.Failed("Incorrect result from function Length");
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180 end if;
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181
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182
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183
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184 -- Check that function To_Decimal with Byte_Array and Binary_Format
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185 -- parameters will return a decimal type value that corresponds to
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186 -- parameter Item (of type Byte_Array) under the specified Format.
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187
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188 if Pack_1.To_Decimal(Item => Pack_1.To_Binary(Item => TC_Dec_1,
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189 Format => Native_Binary),
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190 Format => Native_Binary) /=
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191 TC_Dec_1
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192 then
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193 Report.Failed("Incorrect result from function To_Decimal - 1");
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194 end if;
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195
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196 if Pack_3.To_Decimal(Pack_3.To_Binary(TC_Dec_3, High_Order_First),
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197 Format => High_Order_First) /=
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198 TC_Dec_3
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199 then
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200 Report.Failed("Incorrect result from function To_Decimal - 2");
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201 end if;
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202
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203 if Pack_4.To_Decimal(Pack_4.To_Binary(TC_Dec_4, Low_Order_First),
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204 Low_Order_First) /=
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205 TC_Dec_4
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206 then
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207 Report.Failed("Incorrect result from function To_Decimal - 3");
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208 end if;
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209
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210
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211
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212 -- Check that Conversion_Error is propagated by function To_Decimal
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213 -- if the Byte_Array parameter Item represents a decimal value outside
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214 -- the range of decimal type Num.
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215 -- Note: use a Byte_Array value Item created by an instantiation of
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216 -- To_Binary with a larger Num type as the generic formal.
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217
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218 begin
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219 TC_Dec_4 := 99999.9001;
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220 TC_Dec_1 := Pack_1.To_Decimal(Pack_4.To_Binary(TC_Dec_4,
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221 Native_Binary),
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222 Format => Native_Binary);
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223 if TC_Dec_1 = 99999.9 then
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224 Report.Comment("Minimize dead assignment optimization -- " &
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225 "Should never be printed");
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226 end if;
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227 Report.Failed("Conversion_Error not raised following call to " &
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228 "function To_Decimal if the Byte_Array parameter " &
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229 "Item represents a decimal value outside the " &
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230 "range of decimal type Num");
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231 exception
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232 when Conversion_Error => null; -- OK, expected exception.
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233 when The_Error : others =>
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234 Report.Failed(Exception_Name(The_Error) & " was incorrectly " &
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235 "raised following call to function To_Decimal " &
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236 "if the Byte_Array parameter Item represents " &
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237 "a decimal value outside the range of decimal " &
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238 "type Num");
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239 end;
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240
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241
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242
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243 -- Check that function To_Binary will produce a Byte_Array result that
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244 -- corresponds to the decimal type parameter Item, under the specified
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245 -- Binary_Format.
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246
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247 -- Different ordering.
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248 TC_Dec_1 := 12345.6;
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249 if Pack_1.To_Binary(TC_Dec_1, Low_Order_First) =
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250 Pack_1.To_Binary(TC_Dec_1, High_Order_First)
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251 then
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252 Report.Failed("Incorrect result from function To_Binary - 1");
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253 end if;
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254
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255 -- Variable vs. literal.
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256 TC_Dec_2 := 12345.00;
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257 if Pack_2.To_Binary(TC_Dec_2, Native_Binary) /=
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258 Pack_2.To_Binary(12345.00, Native_Binary)
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259 then
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260 Report.Failed("Incorrect result from function To_Binary - 2");
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261 end if;
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262
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263 exception
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264 when The_Error : others =>
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265 Report.Failed("The following exception was raised in the " &
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266 "Test_Block: " & Exception_Name(The_Error));
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267 end Test_Block;
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268
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269 Report.Result;
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270
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271 end CXB4007;
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