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1 -- C390A031.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 private extension in a different package
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29 -- specification, and that this private extension may in turn be extended
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30 -- by a private extension.
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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 private 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. Declare operations of the private extension which utilize
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54 -- aggregates and equality operators to verify the correctness of the
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55 -- components.
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56 --
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57 -- Extend the extension with a private extension in the same package
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58 -- specification. Declare a new primitive subprogram for this second
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59 -- extension, and override one of the three inherited subprograms.
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60 -- Within the overriding subprogram, utilize type conversion to call the
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61 -- parent's implementation of the same subprogram. Also within the
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62 -- overriding subprogram, call the new primitive subprogram and each
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63 -- inherited subprogram. Declare operations of the private extension
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64 -- which override the verification operations of its parent. Within
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65 -- these overriding operations, utilize type conversion to call the
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66 -- parent's implementations of the same operations.
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67 --
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68 -- In the main program, declare objects of the two extended types.
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69 -- For each object, call the overriding subprogram, and verify the
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70 -- correctness of the components by calling the verification operations
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71 -- declared in the second package.
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72 --
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73 -- TEST FILES:
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74 -- This test consists of the following files:
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75 --
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76 -- F390A00.A
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77 -- C390A030.A
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78 -- => C390A031.AM
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79 --
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80 --
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81 -- CHANGE HISTORY:
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82 -- 06 Dec 94 SAIC ACVC 2.0
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83 -- 04 Jun 96 SAIC ACVC 2.1: Modified prologue.
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84 --
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85 --!
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86
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87 with Report;
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88
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89 with F390A00; -- Basic alert abstraction.
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90 with C390A030; -- Extended alert abstraction.
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91
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92 use F390A00; -- Primitive operations of Alert_Type directly visible.
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93
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94 procedure C390A031 is
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95 begin
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96
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97 Report.Test ("C390A03", "Primitive operation inheritance by type " &
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98 "extensions: all extensions are private and declared " &
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99 "in same package, but a different package from that " &
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100 "of root type");
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101
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102
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103 -- The case for type F390A00.Alert_Type is tested in C390A01.
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104 -- That subtest is not repeated here.
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105
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106
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107 LOW_ALERT_SUBTEST: ---------------------------------------------------------
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108
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109 declare
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110 Low_Alarm : C390A030.Low_Alert_Type; -- Priv. ext. of tagged type.
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111 use C390A030; -- Primitive operations of extension directly visible.
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112 begin
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113 if not C390A030.Initial_Values_Okay (Low_Alarm) then
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114 Report.Failed ("Wrong initial values for Low_Alert_Type");
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115 end if;
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116
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117 Handle (Low_Alarm);
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118
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119 if C390A030.Bad_Final_Values (Low_Alarm) then
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120 Report.Failed ("Wrong values for Low_Alert_Type after Handle");
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121 end if;
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122 end Low_Alert_Subtest;
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123
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124
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125 -- Check intermediate display counts:
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126
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127 if F390A00.Display_Count_For /= (Null_Device => 1,
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128 Teletype => 1,
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129 Console => 0,
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130 Big_Screen => 0)
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131 then
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132 Report.Failed ("Wrong display counts after Low_Alert");
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133 end if;
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134
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135
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136 MEDIUM_ALERT_SUBTEST: ------------------------------------------------------
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137
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138 declare
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139 Medium_Alarm : C390A030.Medium_Alert_Type; -- Priv. ext. of extension.
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140 use C390A030; -- Primitive operations of extension directly visible.
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141 begin
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142 if not C390A030.Initial_Values_Okay (Medium_Alarm) then
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143 Report.Failed ("Wrong initial values for Medium_Alert_Type");
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144 end if;
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145
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146 Handle (Medium_Alarm);
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147
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148 if C390A030.Bad_Final_Values (Medium_Alarm) then
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149 Report.Failed ("Wrong values for Medium_Alert_Type after Handle");
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150 end if;
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151 end Medium_Alert_Subtest;
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152
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153
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154 -- Check final display counts:
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155
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156 if F390A00.Display_Count_For /= (Null_Device => 2,
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157 Teletype => 2,
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158 Console => 1,
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159 Big_Screen => 0)
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160 then
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161 Report.Failed ("Wrong display counts after Medium_Alert_Type");
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162 end if;
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163
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164
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165 Report.Result;
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166
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167 end C390A031;
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