summaryrefslogtreecommitdiff
path: root/tests/src/Interop/MarshalAPI/Copy/CopyIntPtrArray.cs
blob: d4fe4372ea115734c1a84d1291f7b410aff1077a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System;
using System.IO;
using System.Reflection;
using System.Security;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices.ComTypes;
using CoreFXTestLibrary;

public class CopyIntPtrArrayTest
{
    private IntPtr[] TestArray;

    private bool IsArrayEqual(IntPtr[] array1, IntPtr[] array2)
    {
        if (array1.Length != array2.Length)
        {
            return false;
        }

        for (int i = 0; i < array1.Length; i++)
            if (!array1[i].Equals(array2[i]))
            {               
                return false;
            }

        return true;
    }

    private bool IsSubArrayEqual(IntPtr[] array1, IntPtr[] array2, int startIndex, int Length)
    {
        if (startIndex + Length > array1.Length)
        {           
            return false;
        }

        if (startIndex + Length > array2.Length)
        {           
            return false;
        }

        for (int i = 0; i < Length; i++)
            if (!array1[startIndex + i].Equals(array2[startIndex + i]))
            {               
                return false;
            }

        return true;
    }

    private void NullValueTests()
    {
        IntPtr[] array = null;

        try
        {
            Marshal.Copy(array, 0, IntPtr.Zero, 0);

            Assert.ErrorWriteLine("Failed null values test.");
            Assert.ErrorWriteLine("No exception from Copy when passed null as parameter.");
        }
        catch (ArgumentNullException)
        {            
        }
        catch (Exception ex)
        {
            Assert.ErrorWriteLine("Failed null values test.");
            Assert.ErrorWriteLine("Exception occurred: {0}", ex);
        }

        try
        {
            Marshal.Copy(IntPtr.Zero, array, 0, 0);

            Assert.ErrorWriteLine("Failed null values test.");
            Assert.ErrorWriteLine("No exception from Copy when passed null as parameter.");
        }
        catch (ArgumentNullException)
        {            
        }
        catch (Exception ex)
        {
            Assert.ErrorWriteLine("Failed null values test.");
            Assert.ErrorWriteLine("Exception occurred: {0}", ex);
        }
    }

    private void OutOfRangeTests()
    {
        int sizeOfArray = Marshal.SizeOf(TestArray[0]) * TestArray.Length;

        IntPtr ptr = Marshal.AllocCoTaskMem(sizeOfArray);

        try //try to copy more elements than the TestArray has
        {
            Marshal.Copy(TestArray, 0, ptr, TestArray.Length + 1);

            Assert.ErrorWriteLine("Failed out of range values test.");
            Assert.ErrorWriteLine("No exception from Copy when trying to copy more elements than the TestArray has.");
        }
        catch (ArgumentOutOfRangeException)
        {            
        }
        catch (Exception ex)
        {
            Assert.ErrorWriteLine("Failed out of range values test.");
            Assert.ErrorWriteLine("Exception occurred: {0}", ex);
        }

        try //try to copy from an out of bound startIndex
        {
            Marshal.Copy(TestArray, TestArray.Length + 1, ptr, 1);

            Assert.ErrorWriteLine("Failed out of range values test.");
            Assert.ErrorWriteLine("No exception from Copy when trying to copy from an out of bound startIndex.");
        }
        catch (ArgumentOutOfRangeException)
        {            
        }
        catch (Exception ex)
        {
            Assert.ErrorWriteLine("Failed out of range values test.");
            Assert.ErrorWriteLine("Exception occurred: {0}", ex);
        }

        try //try to copy from a positive startIndex, with length taking it out of bounds
        {
            Marshal.Copy(TestArray, 2, ptr, TestArray.Length);

            Assert.ErrorWriteLine("Failed out of range values test.");
            Assert.ErrorWriteLine("No exception from Copy when trying to copy from a positive startIndex, with length taking it out of bounds.");
        }
        catch (ArgumentOutOfRangeException)
        {
            
        }
        catch (Exception ex)
        {
            Assert.ErrorWriteLine("Failed out of range values test.");
            Assert.ErrorWriteLine("Exception occurred: {0}", ex);
        }

        Marshal.FreeCoTaskMem(ptr);
    }

    private void CopyRoundTripTests()
    {
        int sizeOfArray = Marshal.SizeOf(TestArray[0]) * TestArray.Length;

        IntPtr ptr = Marshal.AllocCoTaskMem(sizeOfArray);

        try //try to copy the entire array
        {
            Marshal.Copy(TestArray, 0, ptr, TestArray.Length);

            IntPtr[] array = new IntPtr[TestArray.Length];

            Marshal.Copy(ptr, array, 0, TestArray.Length);

            if (!IsArrayEqual(TestArray, array))
            {
                Assert.ErrorWriteLine("Failed copy round trip test");
                Assert.ErrorWriteLine("Original array and round trip copied arrays do not match.");
            }
        }
        catch (Exception ex)
        {
            Assert.ErrorWriteLine("Failed copy round trip test.");
            Assert.ErrorWriteLine("Exception occurred: {0}", ex);
        }

        try //try to copy part of the array
        {
            Marshal.Copy(TestArray, 2, ptr, TestArray.Length - 4);

            IntPtr[] array = new IntPtr[TestArray.Length];

            Marshal.Copy(ptr, array, 2, TestArray.Length - 4);

            if (!IsSubArrayEqual(TestArray, array, 2, TestArray.Length - 4))
            {
                Assert.ErrorWriteLine("Failed copy round trip test");
                Assert.ErrorWriteLine("Original array and round trip partially copied arrays do not match.");
            }
        }
        catch (Exception ex)
        {
            Assert.ErrorWriteLine("Failed copy round trip test.");
            Assert.ErrorWriteLine("Exception occurred: {0}", ex);
        }

        Marshal.FreeCoTaskMem(ptr);
    }

    public bool RunTests()
    {        
        NullValueTests();        
        OutOfRangeTests();        
        CopyRoundTripTests();
        return true;
    }

    public bool Initialize()
    {        
        TestArray = new IntPtr[10];
        for (int i = 0; i < TestArray.Length; i++)
            TestArray[i] = new IntPtr(i);
        return true;
    }

    public static int Main(String[] unusedArgs)
    {
        CopyIntPtrArrayTest test = new CopyIntPtrArrayTest();
        test.Initialize();

        if (test.RunTests())
            return 100;

        return 99;
    }

}