| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: tests/streams/memstream.cpp |
| 3 | // Purpose: Test wxMemoryInputStream/wxMemoryOutputStream |
| 4 | // Author: Hans Van Leemputten |
| 5 | // RCS-ID: $Id$ |
| 6 | // Copyright: (c) 2004 Hans Van Leemputten |
| 7 | // Licence: wxWidgets licence |
| 8 | /////////////////////////////////////////////////////////////////////////////// |
| 9 | |
| 10 | // For compilers that support precompilation, includes "wx/wx.h". |
| 11 | // and "wx/cppunit.h" |
| 12 | #include "testprec.h" |
| 13 | |
| 14 | #ifdef __BORLANDC__ |
| 15 | #pragma hdrstop |
| 16 | #endif |
| 17 | |
| 18 | // for all others, include the necessary headers |
| 19 | #ifndef WX_PRECOMP |
| 20 | #include "wx/wx.h" |
| 21 | #endif |
| 22 | |
| 23 | #include "wx/mstream.h" |
| 24 | |
| 25 | #include "bstream.h" |
| 26 | |
| 27 | #define DATABUFFER_SIZE 256 |
| 28 | |
| 29 | /////////////////////////////////////////////////////////////////////////////// |
| 30 | // The test case |
| 31 | // |
| 32 | // Try to fully test wxMemoryInputStream and wxMemoryOutputStream |
| 33 | |
| 34 | class memStream : public BaseStreamTestCase<wxMemoryInputStream, wxMemoryOutputStream> |
| 35 | { |
| 36 | public: |
| 37 | memStream(); |
| 38 | virtual ~memStream(); |
| 39 | |
| 40 | CPPUNIT_TEST_SUITE(memStream); |
| 41 | // Base class stream tests the memStream supports. |
| 42 | CPPUNIT_TEST(Input_GetSize); |
| 43 | CPPUNIT_TEST(Input_GetC); |
| 44 | CPPUNIT_TEST(Input_Read); |
| 45 | CPPUNIT_TEST(Input_Eof); |
| 46 | CPPUNIT_TEST(Input_LastRead); |
| 47 | CPPUNIT_TEST(Input_CanRead); |
| 48 | CPPUNIT_TEST(Input_SeekI); |
| 49 | CPPUNIT_TEST(Input_TellI); |
| 50 | CPPUNIT_TEST(Input_Peek); |
| 51 | CPPUNIT_TEST(Input_Ungetch); |
| 52 | |
| 53 | CPPUNIT_TEST(Output_PutC); |
| 54 | CPPUNIT_TEST(Output_Write); |
| 55 | CPPUNIT_TEST(Output_LastWrite); |
| 56 | CPPUNIT_TEST(Output_SeekO); |
| 57 | CPPUNIT_TEST(Output_TellO); |
| 58 | |
| 59 | // Other test specific for Memory stream test case. |
| 60 | CPPUNIT_TEST(Ctor_InFromIn); |
| 61 | CPPUNIT_TEST(Ctor_InFromOut); |
| 62 | CPPUNIT_TEST_SUITE_END(); |
| 63 | |
| 64 | protected: |
| 65 | // Add own test here. |
| 66 | void Ctor_InFromIn(); |
| 67 | void Ctor_InFromOut(); |
| 68 | |
| 69 | private: |
| 70 | const char *GetDataBuffer(); |
| 71 | |
| 72 | private: |
| 73 | // Implement base class functions. |
| 74 | virtual wxMemoryInputStream *DoCreateInStream(); |
| 75 | virtual wxMemoryOutputStream *DoCreateOutStream(); |
| 76 | |
| 77 | private: |
| 78 | char m_DataBuffer[DATABUFFER_SIZE]; |
| 79 | }; |
| 80 | |
| 81 | memStream::memStream() |
| 82 | { |
| 83 | // Init the data buffer. |
| 84 | for (size_t i = 0; i < DATABUFFER_SIZE; i++) |
| 85 | m_DataBuffer[i] = (i % 0xFF); |
| 86 | } |
| 87 | |
| 88 | memStream::~memStream() |
| 89 | { |
| 90 | /* Nothing extra for now. */ |
| 91 | } |
| 92 | |
| 93 | const char *memStream::GetDataBuffer() |
| 94 | { |
| 95 | return m_DataBuffer; |
| 96 | } |
| 97 | |
| 98 | wxMemoryInputStream *memStream::DoCreateInStream() |
| 99 | { |
| 100 | wxMemoryInputStream *pMemInStream = new wxMemoryInputStream(GetDataBuffer(), DATABUFFER_SIZE); |
| 101 | CPPUNIT_ASSERT(pMemInStream->IsOk()); |
| 102 | return pMemInStream; |
| 103 | } |
| 104 | wxMemoryOutputStream *memStream::DoCreateOutStream() |
| 105 | { |
| 106 | wxMemoryOutputStream *pMemOutStream = new wxMemoryOutputStream(); |
| 107 | CPPUNIT_ASSERT(pMemOutStream->IsOk()); |
| 108 | return pMemOutStream; |
| 109 | } |
| 110 | |
| 111 | void memStream::Ctor_InFromIn() |
| 112 | { |
| 113 | wxMemoryInputStream *pMemInStream1 = DoCreateInStream(); |
| 114 | wxMemoryInputStream *pMemInStream2 = new wxMemoryInputStream(*pMemInStream1); |
| 115 | CPPUNIT_ASSERT(pMemInStream2->IsOk()); |
| 116 | CPPUNIT_ASSERT_EQUAL(pMemInStream1->GetLength(), pMemInStream2->GetLength()); |
| 117 | wxFileOffset len = pMemInStream2->GetLength(); |
| 118 | char *dat = new char[len]; |
| 119 | pMemInStream2->Read(dat, len); |
| 120 | CPPUNIT_ASSERT_EQUAL(len, (wxFileOffset)pMemInStream2->LastRead()); |
| 121 | wxStreamBuffer *buf = pMemInStream1->GetInputStreamBuffer(); |
| 122 | void *pIn = buf->GetBufferStart(); |
| 123 | CPPUNIT_ASSERT(memcmp(pIn, dat, len) == 0); |
| 124 | delete pMemInStream2; |
| 125 | |
| 126 | wxFileOffset len2 = len / 2; |
| 127 | CPPUNIT_ASSERT(len2); |
| 128 | CPPUNIT_ASSERT(pMemInStream1->SeekI(-len2, wxFromCurrent) != wxInvalidOffset); |
| 129 | pIn = buf->GetBufferPos(); |
| 130 | pMemInStream2 = new wxMemoryInputStream(*pMemInStream1, len2); |
| 131 | CPPUNIT_ASSERT(pMemInStream2->IsOk()); |
| 132 | CPPUNIT_ASSERT_EQUAL((wxFileOffset)len2, pMemInStream2->GetLength()); |
| 133 | pMemInStream2->Read(dat, len2); |
| 134 | CPPUNIT_ASSERT_EQUAL(len2, (wxFileOffset)pMemInStream2->LastRead()); |
| 135 | CPPUNIT_ASSERT(memcmp(pIn, dat, len2) == 0); |
| 136 | |
| 137 | delete[] dat; |
| 138 | delete pMemInStream2; |
| 139 | delete pMemInStream1; |
| 140 | } |
| 141 | |
| 142 | void memStream::Ctor_InFromOut() |
| 143 | { |
| 144 | wxMemoryOutputStream *pMemOutStream = DoCreateOutStream(); |
| 145 | pMemOutStream->Write(GetDataBuffer(), DATABUFFER_SIZE); |
| 146 | wxMemoryInputStream *pMemInStream = new wxMemoryInputStream(*pMemOutStream); |
| 147 | CPPUNIT_ASSERT(pMemInStream->IsOk()); |
| 148 | CPPUNIT_ASSERT_EQUAL(pMemInStream->GetLength(), pMemOutStream->GetLength()); |
| 149 | size_t len = pMemInStream->GetLength(); |
| 150 | wxStreamBuffer *in = pMemInStream->GetInputStreamBuffer(); |
| 151 | wxStreamBuffer *out = pMemOutStream->GetOutputStreamBuffer(); |
| 152 | void *pIn = in->GetBufferStart(); |
| 153 | void *pOut = out->GetBufferStart(); |
| 154 | CPPUNIT_ASSERT(pIn != pOut); |
| 155 | CPPUNIT_ASSERT(memcmp(pIn, pOut, len) == 0); |
| 156 | delete pMemInStream; |
| 157 | delete pMemOutStream; |
| 158 | } |
| 159 | |
| 160 | // Register the stream sub suite, by using some stream helper macro. |
| 161 | // Note: Don't forget to connect it to the base suite (See: bstream.cpp => StreamCase::suite()) |
| 162 | STREAM_TEST_SUBSUITE_NAMED_REGISTRATION(memStream) |