1 /*
2  *  Copyright (c) 2021, The OpenThread Authors.
3  *  All rights reserved.
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9  *  2. Redistributions in binary form must reproduce the above copyright
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14  *     derived from this software without specific prior written permission.
15  *
16  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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27  */
28 
29 #include "test_platform.h"
30 
31 #include <string.h>
32 
33 #include <openthread/config.h>
34 
35 #include "test_util.hpp"
36 #include "common/code_utils.hpp"
37 #include "common/heap_data.hpp"
38 #include "common/heap_string.hpp"
39 
40 namespace ot {
41 
PrintString(const char * aName,const Heap::String & aString)42 void PrintString(const char *aName, const Heap::String &aString)
43 {
44     if (aString.IsNull())
45     {
46         printf("%s = (null)\n", aName);
47     }
48     else
49     {
50         printf("%s = [%zu] \"%s\"\n", aName, strlen(aString.AsCString()), aString.AsCString());
51     }
52 }
53 
VerifyString(const char * aName,const Heap::String & aString,const char * aExpectedString)54 void VerifyString(const char *aName, const Heap::String &aString, const char *aExpectedString)
55 {
56     PrintString(aName, aString);
57 
58     if (aExpectedString == nullptr)
59     {
60         VerifyOrQuit(aString.IsNull());
61         VerifyOrQuit(aString.AsCString() == nullptr);
62         VerifyOrQuit(aString != "something");
63     }
64     else
65     {
66         VerifyOrQuit(!aString.IsNull());
67         VerifyOrQuit(aString.AsCString() != nullptr);
68         VerifyOrQuit(strcmp(aString.AsCString(), aExpectedString) == 0, "String content is incorrect");
69         VerifyOrQuit(aString != nullptr);
70     }
71 
72     VerifyOrQuit(aString == aExpectedString);
73 }
74 
75 // Function returning a `Heap::String` by value.
GetName(void)76 Heap::String GetName(void)
77 {
78     Heap::String name;
79 
80     SuccessOrQuit(name.Set("name"));
81 
82     return name;
83 }
84 
TestHeapString(void)85 void TestHeapString(void)
86 {
87     Heap::String str1;
88     Heap::String str2;
89     const char * oldBuffer;
90 
91     printf("====================================================================================\n");
92     printf("TestHeapString\n\n");
93 
94     printf("------------------------------------------------------------------------------------\n");
95     printf("After constructor\n\n");
96     VerifyString("str1", str1, nullptr);
97 
98     printf("------------------------------------------------------------------------------------\n");
99     printf("Set(const char *aCstring)\n\n");
100     SuccessOrQuit(str1.Set("hello"));
101     VerifyString("str1", str1, "hello");
102     oldBuffer = str1.AsCString();
103 
104     SuccessOrQuit(str1.Set("0123456789"));
105     VerifyString("str1", str1, "0123456789");
106     printf("\tDid reuse its old buffer: %s\n", str1.AsCString() == oldBuffer ? "yes" : "no");
107     oldBuffer = str1.AsCString();
108 
109     SuccessOrQuit(str1.Set("9876543210"));
110     VerifyString("str1", str1, "9876543210");
111     printf("\tDid reuse its old buffer (same length): %s\n", str1.AsCString() == oldBuffer ? "yes" : "no");
112 
113     printf("------------------------------------------------------------------------------------\n");
114     printf("Set(const Heap::String &)\n\n");
115     SuccessOrQuit(str2.Set(str1));
116     VerifyString("str2", str2, str1.AsCString());
117 
118     SuccessOrQuit(str1.Set(nullptr));
119     VerifyString("str1", str1, nullptr);
120 
121     SuccessOrQuit(str2.Set(str1));
122     VerifyString("str2", str2, nullptr);
123 
124     printf("------------------------------------------------------------------------------------\n");
125     printf("Free()\n\n");
126     str1.Free();
127     VerifyString("str1", str1, nullptr);
128 
129     SuccessOrQuit(str1.Set("hello again"));
130     VerifyString("str1", str1, "hello again");
131 
132     str1.Free();
133     VerifyString("str1", str1, nullptr);
134 
135     printf("------------------------------------------------------------------------------------\n");
136     printf("Set() move semantics\n\n");
137     SuccessOrQuit(str1.Set("old name"));
138     PrintString("str1", str1);
139     SuccessOrQuit(str1.Set(GetName()), "Set() with move semantics failed");
140     VerifyString("str1", str1, "name");
141 
142     printf("------------------------------------------------------------------------------------\n");
143     printf("operator==() with two null string\n\n");
144     str1.Free();
145     str2.Free();
146     VerifyString("str1", str1, nullptr);
147     VerifyString("str2", str2, nullptr);
148     VerifyOrQuit(str1 == str2, "operator==() failed with two null strings");
149 
150     printf("\n -- PASS\n");
151 }
152 
PrintData(const Heap::Data & aData)153 void PrintData(const Heap::Data &aData)
154 {
155     DumpBuffer("data", aData.GetBytes(), aData.GetLength());
156 }
157 
158 static const uint8_t kTestValue = 0x77;
159 
160 // Function returning a `Heap::Data` by value.
GetData(void)161 Heap::Data GetData(void)
162 {
163     Heap::Data data;
164 
165     SuccessOrQuit(data.SetFrom(&kTestValue, sizeof(kTestValue)));
166 
167     return data;
168 }
169 
VerifyData(const Heap::Data & aData,const uint8_t * aBytes,uint16_t aLength)170 void VerifyData(const Heap::Data &aData, const uint8_t *aBytes, uint16_t aLength)
171 {
172     static constexpr uint16_t kMaxLength = 100;
173     uint8_t                   buffer[kMaxLength];
174 
175     PrintData(aData);
176 
177     if (aLength == 0)
178     {
179         VerifyOrQuit(aData.IsNull());
180         VerifyOrQuit(aData.GetBytes() == nullptr);
181         VerifyOrQuit(aData.GetLength() == 0);
182     }
183     else
184     {
185         VerifyOrQuit(!aData.IsNull());
186         VerifyOrQuit(aData.GetBytes() != nullptr);
187         VerifyOrQuit(aData.GetLength() == aLength);
188         VerifyOrQuit(memcmp(aData.GetBytes(), aBytes, aLength) == 0, "Data content is incorrect");
189 
190         aData.CopyBytesTo(buffer);
191         VerifyOrQuit(memcmp(buffer, aBytes, aLength) == 0, "CopyBytesTo() failed");
192     }
193 }
194 
VerifyData(const Heap::Data & aData,const uint8_t (& aArray)[kLength])195 template <uint16_t kLength> void VerifyData(const Heap::Data &aData, const uint8_t (&aArray)[kLength])
196 {
197     VerifyData(aData, &aArray[0], kLength);
198 }
199 
TestHeapData(void)200 void TestHeapData(void)
201 {
202     Instance *     instance;
203     MessagePool *  messagePool;
204     Message *      message;
205     Heap::Data     data;
206     uint16_t       offset;
207     const uint8_t *oldBuffer;
208 
209     static const uint8_t kData1[] = {10, 20, 3, 15, 100, 0, 60, 16};
210     static const uint8_t kData2[] = "OpenThread HeapData";
211     static const uint8_t kData3[] = {0xaa, 0xbb, 0xcc};
212     static const uint8_t kData4[] = {0x11, 0x22, 0x33};
213 
214     instance = static_cast<Instance *>(testInitInstance());
215     VerifyOrQuit(instance != nullptr, "Null OpenThread instance");
216 
217     messagePool = &instance->Get<MessagePool>();
218     VerifyOrQuit((message = messagePool->Allocate(Message::kTypeIp6)) != nullptr);
219 
220     message->SetOffset(0);
221 
222     printf("\n\n====================================================================================\n");
223     printf("TestHeapData\n\n");
224 
225     printf("------------------------------------------------------------------------------------\n");
226     printf("After constructor\n");
227     VerifyData(data, nullptr, 0);
228 
229     printf("------------------------------------------------------------------------------------\n");
230     printf("SetFrom(aBuffer, aLength)\n");
231 
232     SuccessOrQuit(data.SetFrom(kData1, sizeof(kData1)));
233     VerifyData(data, kData1);
234 
235     SuccessOrQuit(data.SetFrom(kData2, sizeof(kData2)));
236     VerifyData(data, kData2);
237 
238     SuccessOrQuit(data.SetFrom(kData3, sizeof(kData3)));
239     VerifyData(data, kData3);
240     oldBuffer = data.GetBytes();
241 
242     SuccessOrQuit(data.SetFrom(kData4, sizeof(kData4)));
243     VerifyData(data, kData4);
244     VerifyOrQuit(oldBuffer == data.GetBytes(), "did not reuse old buffer on same data length");
245 
246     SuccessOrQuit(data.SetFrom(kData4, 0));
247     VerifyData(data, nullptr, 0);
248 
249     printf("------------------------------------------------------------------------------------\n");
250     printf("SetFrom(aMessage)\n");
251 
252     SuccessOrQuit(message->Append(kData2));
253     SuccessOrQuit(data.SetFrom(*message));
254     VerifyData(data, kData2);
255 
256     SuccessOrQuit(message->Append(kData3));
257     SuccessOrQuit(data.SetFrom(*message));
258     PrintData(data);
259     VerifyOrQuit(data.GetLength() == message->GetLength());
260 
261     message->SetOffset(sizeof(kData2));
262     SuccessOrQuit(data.SetFrom(*message));
263     VerifyData(data, kData3);
264 
265     SuccessOrQuit(message->Append(kData4));
266 
267     offset = 0;
268     SuccessOrQuit(data.SetFrom(*message, offset, sizeof(kData2)));
269     VerifyData(data, kData2);
270 
271     offset = sizeof(kData2);
272     SuccessOrQuit(data.SetFrom(*message, offset, sizeof(kData3)));
273     VerifyData(data, kData3);
274 
275     offset += sizeof(kData3);
276     SuccessOrQuit(data.SetFrom(*message, offset, sizeof(kData4)));
277     VerifyData(data, kData4);
278 
279     VerifyOrQuit(data.SetFrom(*message, offset, sizeof(kData4) + 1) == kErrorParse);
280     VerifyOrQuit(data.SetFrom(*message, 0, message->GetLength() + 1) == kErrorParse);
281     VerifyOrQuit(data.SetFrom(*message, 1, message->GetLength()) == kErrorParse);
282 
283     printf("------------------------------------------------------------------------------------\n");
284     printf("Free()\n");
285 
286     data.Free();
287     VerifyData(data, nullptr, 0);
288 
289     data.Free();
290     VerifyData(data, nullptr, 0);
291 
292     printf("------------------------------------------------------------------------------------\n");
293     printf("CopyBytesTo(aMessage)\n");
294 
295     SuccessOrQuit(message->SetLength(0));
296 
297     SuccessOrQuit(data.CopyBytesTo(*message));
298     VerifyOrQuit(message->GetLength() == 0, "CopyBytesTo() failed");
299 
300     SuccessOrQuit(data.SetFrom(kData1, sizeof(kData1)));
301     VerifyData(data, kData1);
302     SuccessOrQuit(data.CopyBytesTo(*message));
303     VerifyOrQuit(message->GetLength() == data.GetLength(), "CopyBytesTo() failed");
304     VerifyOrQuit(message->Compare(0, kData1), "CopyBytesTo() failed");
305 
306     printf("------------------------------------------------------------------------------------\n");
307     printf("SetFrom() move semantics\n\n");
308     data.SetFrom(GetData());
309     VerifyData(data, &kTestValue, sizeof(kTestValue));
310 
311     printf("\n -- PASS\n");
312 }
313 
314 } // namespace ot
315 
main(void)316 int main(void)
317 {
318     ot::TestHeapString();
319     ot::TestHeapData();
320     printf("\nAll tests passed.\n");
321     return 0;
322 }
323