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1 -- C390A022.AM
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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 a nonprivate tagged type declared in a package specification
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28 -- may be extended with a record extension in a different package
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29 -- specification, and that this record extension may in turn be extended
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30 -- by a private extension in a third package.
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31 --
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32 -- Check that each derivative inherits the user-defined primitive
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33 -- subprograms of its parent (including those that its parent inherited),
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34 -- that it may override these inherited primitive subprograms, and that it
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35 -- may also declare its own primitive subprograms.
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36 --
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37 -- Check that predefined equality operators are defined for the tagged
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38 -- type and its derivatives.
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39 --
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40 -- Check that type conversion is defined from a type extension to its
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41 -- parent, and that this parent itself may be a type extension.
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42 --
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43 -- TEST DESCRIPTION:
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44 -- Declare a root tagged type and two associated primitive subprograms
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45 -- in a package specification (foundation code).
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46 --
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47 -- Extend the root type with a record extension in a different package
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48 -- specification. Declare a new primitive subprogram for the extension,
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49 -- and override one of the two inherited subprograms. Within the
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50 -- overriding subprogram, utilize type conversion to call the parent's
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51 -- implementation of the same subprogram. Also within the overriding
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52 -- subprogram, call the new primitive subprogram and each inherited
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53 -- subprogram.
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54 --
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55 -- Extend the extension with a private extension in a third package
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56 -- specification. Declare a new primitive subprogram for this private
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57 -- extension, and override one of the three inherited subprograms.
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58 -- Within the overriding subprogram, utilize type conversion to call the
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59 -- parent's implementation of the same subprogram. Also within the
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60 -- overriding subprogram, call the new primitive subprogram and each
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61 -- inherited subprogram.
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62 --
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63 -- Also in the third package, declare two operations of the private
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64 -- extension which utilize aggregates and equality operators to verify
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65 -- the correctness of the components.
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66 --
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67 -- In the main program, declare objects of the two extended types.
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68 -- For each object, call the overriding subprogram, and verify the
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69 -- correctness of the components by using aggregates and equality
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70 -- operators, or by checking the components directly, or, for the private
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71 -- extension, by calling the verification operations declared in the
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72 -- third package.
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73 --
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74 -- TEST FILES:
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75 -- This test consists of the following files:
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76 --
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77 -- F390A00.A
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78 -- C390A020.A
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79 -- C390A021.A
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80 -- => C390A022.AM
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81 --
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82 --
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83 -- CHANGE HISTORY:
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84 -- 06 Dec 94 SAIC ACVC 2.0
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85 -- 04 Jun 96 SAIC ACVC 2.1: Modified prologue.
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86 --
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87 --!
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88
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89 with Report;
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90
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91 with F390A00; -- Basic alert abstraction.
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92 with C390A020; -- Extended alert abstraction.
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93 with C390A021; -- Further extended alert abstraction.
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94
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95 use F390A00; -- Primitive operations of Alert_Type directly visible.
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96
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97 with Ada.Calendar;
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98
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99 procedure C390A022 is
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100 use type Ada.Calendar.Time; -- Equality/inequality ops directly visible.
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101 begin
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102
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103 Report.Test ("C390A02", "Primitive operation inheritance by type " &
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104 "extensions: all extensions declared in different " &
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105 "packages; second extension is private");
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106
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107
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108 -- The case for type F390A00.Alert_Type is tested in C390A01.
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109 -- That subtest is not repeated here.
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110
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111
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112 LOW_ALERT_SUBTEST: ---------------------------------------------------------
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113
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114 declare
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115 Low_Alarm : C390A020.Low_Alert_Type; -- Extension of tagged type.
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116 use C390A020; -- Primitive operations of extension directly visible.
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117 begin
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118
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119 -- Check "=" operator availability. Aggregate with positional
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120 -- associations:
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121 if not (Low_Alarm = (Default_Time, Null_Device, 0)) then
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122 Report.Failed ("Wrong initial values for Low_Alert_Type");
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123 end if;
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124
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125 Handle (Low_Alarm);
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126
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127 -- Check component availability:
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128 if Low_Alarm.Arrival_Time /= Alert_Time or
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129 Low_Alarm.Display_On /= Teletype or
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130 Low_Alarm.Level /= 1
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131 then
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132 Report.Failed ("Wrong values for Low_Alert_Type after Handle");
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133 end if;
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134 end Low_Alert_Subtest;
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135
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136
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137 -- Check intermediate display counts:
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138
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139 if F390A00.Display_Count_For /= (Null_Device => 1,
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140 Teletype => 1,
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141 Console => 0,
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142 Big_Screen => 0)
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143 then
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144 Report.Failed ("Wrong display counts after Low_Alert_Type");
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145 end if;
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146
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147
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148 MEDIUM_ALERT_SUBTEST: ------------------------------------------------------
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149
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150 declare
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151 Medium_Alarm : C390A021.Medium_Alert_Type; -- Priv. ext. of extension.
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152 use C390A021; -- Primitive operations of extension directly visible.
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153 begin
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154 if not C390A021.Initial_Values_Okay (Medium_Alarm) then
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155 Report.Failed ("Wrong initial values for Medium_Alert_Type");
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156 end if;
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157
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158 Handle (Medium_Alarm);
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159
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160 if C390A021.Bad_Final_Values (Medium_Alarm) then
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161 Report.Failed ("Wrong values for Medium_Alert_Type after Handle");
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162 end if;
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163 end Medium_Alert_Subtest;
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164
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165
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166 -- Check final display counts:
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167
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168 if F390A00.Display_Count_For /= (Null_Device => 2,
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169 Teletype => 2,
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170 Console => 1,
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171 Big_Screen => 0)
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172 then
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173 Report.Failed ("Wrong display counts after Medium_Alert_Type");
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174 end if;
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175
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176
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177 Report.Result;
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178
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179 end C390A022;
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