BOOL CNamedIndexesOptimiser::OpenDestinationFile(CFileBasic* pcDestFile, char* szName)
{
CChars szFullName;
pcDestFile->Init(BufferedFile(DiskFile(TempFileName(&szFullName, szName)), 10 MB));
szFullName.Kill();
return pcDestFile->Open(EFM_Write_Create);
}
void TestBufferedFileReadWrite(void)
{
CFileUtil cFileUtil;
CFileBasic cFile;
CTextFile cText;
char sz[20];
cFileUtil.Delete("Test.txt");
cFile.Init(BufferedFile(DiskFile("Test.txt"), 3));
cFile.Open(EFM_ReadWrite_Create);
cFile.Write("abcdefghijklmn", 1, 14);
cFile.Write("op", 1, 2);
cFile.Seek(3);
memset(sz, 0, 20);
cFile.Read(sz, 2, 1);
AssertString("de", sz);
cFile.Read(sz, 2, 1);
AssertString("fg", sz);
cFile.Write("12", 2, 1);
cFile.Read(sz, 2, 1);
AssertString("jk", sz);
cFile.Write("34", 2, 1);
cFile.Read(sz, 2, 1);
AssertString("no", sz);
cFile.Seek(2);
cFile.Write("XY", 2, 1);
cFile.Read(sz, 1, 3);
AssertString("efg", sz);
cFile.Close();
cFile.Kill();
cText.Init();
cText.Read("Test.txt");
AssertString("abXYefg12jk34nop", cText.mcText.Text());
cText.Kill();
cFileUtil.Delete("Test.txt");
}
void TestBufferedFileWrite(void)
{
CFileUtil cFileUtil;
CFileBasic cFile;
CTextFile cText;
cFileUtil.Delete("Test.txt");
cFile.Init(BufferedFile(DiskFile("Test.txt"), 3));
cFile.Open(EFM_Write_Create);
cFile.Write("ab", 1, 2);
cFile.Write("cd", 1, 2);
cFile.Close();
cFile.Kill();
cText.Init();
cText.Read("Test.txt");
AssertString("abcd", cText.mcText.Text());
cText.Kill();
cFile.Init(BufferedFile(DiskFile("Test.txt"), 5));
cFile.Open(EFM_Write_Create);
cFile.Write("abcdefghi", 1, 9);
cFile.Write("jklmn", 1, 5);
cFile.Close();
cFile.Kill();
cText.Init();
cText.Read("Test.txt");
AssertString("abcdefghijklmn", cText.mcText.Text());
cText.Kill();
cFile.Init(BufferedFile(DiskFile("Test.txt"), 5));
cFile.Open(EFM_ReadWrite);
cFile.Seek(4);
cFile.Write("xyz", 3, 1);
cFile.Close();
cFile.Kill();
cText.Init();
cText.Read("Test.txt");
AssertString("abcdxyzhijklmn", cText.mcText.Text());
cText.Kill();
cFile.Init(BufferedFile(DiskFile("Test.txt"), 8));
cFile.Open(EFM_ReadWrite);
cFile.Seek(0, EFSO_END);
cFile.Write("opqrst", 6, 1);
cFile.Seek(0);
cFile.Write("123456", 6, 1);
cFile.Write("78", 2, 1);
cFile.Close();
cFile.Kill();
cText.Init();
cText.Read("Test.txt");
AssertString("12345678ijklmnopqrst", cText.mcText.Text());
cText.Kill();
cFile.Init(BufferedFile(DiskFile("Test.txt"), 3));
cFile.Open(EFM_Write_Create);
cFile.Write("ab", 1, 2);
cFile.Write("cdef", 1, 4);
cFile.Write("gh", 1, 2);
cFile.Close();
cFile.Kill();
cText.Init();
cText.Read("Test.txt");
AssertString("abcdefgh", cText.mcText.Text());
cText.Kill();
cFileUtil.Delete("Test.txt");
}
void TestBufferedFileRead(void)
{
CFileUtil cFileUtil;
CFileBasic cFile;
CTextFile cText;
char sz[20];
char c;
int iCount;
int i;
char szExpected[20];
cFileUtil.Delete("Test.txt");
cText.Init();
cText.mcText.Append("abcdefghijk");
cText.Write("Test.txt");
cText.Kill();
cFile.Init(BufferedFile(DiskFile("Test.txt"), 3));
cFile.Open(EFM_Read);
for (c = 'a'; c <= 'k'; c++)
{
AssertFalse(cFile.IsEndOfFile());
memset(sz, 0, 20);
iCount = (int)cFile.Read(sz, 1, 1);
AssertChar(c, sz[0]);
AssertChar(0, sz[1]);
AssertInt(1, iCount);
}
AssertTrue(cFile.IsEndOfFile());
cFile.Seek(0);
szExpected[2] = 0;
for (i = 0; i < 5; i++)
{
AssertFalse(cFile.IsEndOfFile());
memset(sz, 0, 20);
iCount = (int)cFile.Read(sz, 1, 2);
szExpected[0] = 'a' + (char)i * 2;
szExpected[1] = 'b' + (char)i * 2;
AssertString(szExpected, sz);
AssertInt(2, iCount);
}
AssertFalse(cFile.IsEndOfFile());
memset(sz, 0, 20);
iCount = (int)cFile.Read(sz, 1, 2);
AssertString("k", sz);
AssertInt(1, iCount);
AssertTrue(cFile.IsEndOfFile());
cFile.Seek(0);
szExpected[3] = 0;
for (i = 0; i < 3; i++)
{
AssertFalse(cFile.IsEndOfFile());
memset(sz, 0, 20);
iCount = (int)cFile.Read(sz, 1, 3);
szExpected[0] = 'a' + (char)i * 3;
szExpected[1] = 'b' + (char)i * 3;
szExpected[2] = 'c' + (char)i * 3;
AssertString(szExpected, sz);
AssertInt(3, iCount);
}
AssertFalse(cFile.IsEndOfFile());
memset(sz, 0, 20);
iCount = (int)cFile.Read(sz, 1, 3);
AssertString("jk", sz);
AssertInt(2, iCount);
AssertTrue(cFile.IsEndOfFile());
cFile.Kill();
cFileUtil.Delete("Test.txt");
}