public virtual void TestHugeFile()
{
DenseRAMFile f = new DenseRAMFile();
// output part
RAMOutputStream @out = new RAMOutputStream(f);
sbyte[] b1 = new sbyte[RAMOutputStream.BUFFER_SIZE];
sbyte[] b2 = new sbyte[RAMOutputStream.BUFFER_SIZE / 3];
for (int i = 0; i < b1.Length; i++)
{
b1[i] = (sbyte)(i & 0x0007F);
}
for (int i = 0; i < b2.Length; i++)
{
b2[i] = (sbyte)(i & 0x0003F);
}
long n = 0;
Assert.AreEqual(n, @out.Length, "output length must match");
while (n <= MAX_VALUE - b1.Length)
{
@out.WriteBytes(b1, 0, b1.Length);
@out.Flush();
n += b1.Length;
Assert.AreEqual(n, @out.Length, "output length must match");
}
//System.out.println("after writing b1's, length = "+out.Length()+" (MAX_VALUE="+MAX_VALUE+")");
int m = b2.Length;
long L = 12;
for (int j = 0; j < L; j++)
{
for (int i = 0; i < b2.Length; i++)
{
b2[i]++;
}
@out.WriteBytes(b2, 0, m);
@out.Flush();
n += m;
Assert.AreEqual(n, @out.Length, "output length must match");
}
@out.Dispose();
// input part
RAMInputStream @in = new RAMInputStream("testcase", f);
Assert.AreEqual(n, @in.Length(), "input length must match");
//System.out.println("input length = "+in.Length()+" % 1024 = "+in.Length()%1024);
for (int j = 0; j < L; j++)
{
long loc = n - (L - j) * m;
@in.Seek(loc / 3);
@in.Seek(loc);
for (int i = 0; i < m; i++)
{
sbyte bt = @in.ReadSByte();
sbyte expected = (sbyte)(1 + j + (i & 0x0003F));
Assert.AreEqual(expected, bt, "must read same value that was written! j=" + j + " i=" + i);
}
}
}
