public virtual void TestCompareTo()
{
// compare to self
assertEquals(0, buf.CompareTo(buf));
// normal cases
assertTrue(buf.Capacity > 5);
buf.Clear();
Int64Buffer other = Int64Buffer.Allocate(buf.Capacity);
loadTestData1(other);
assertEquals(0, buf.CompareTo(other));
assertEquals(0, other.CompareTo(buf));
buf.Position = (1);
assertTrue(buf.CompareTo(other) > 0);
assertTrue(other.CompareTo(buf) < 0);
other.Position = (2);
assertTrue(buf.CompareTo(other) < 0);
assertTrue(other.CompareTo(buf) > 0);
buf.Position = (2);
other.Limit = (5);
assertTrue(buf.CompareTo(other) > 0);
assertTrue(other.CompareTo(buf) < 0);
// J2N: Cover null for .NET. See: https://stackoverflow.com/a/4852537
assertEquals(1, buf.CompareTo(null));
}
public virtual void TestCompareTo()
{
// compare to self
assertEquals(0, buf.CompareTo(buf));
// normal cases
assertTrue(buf.Capacity > 5);
buf.Clear();
Int64Buffer other = Int64Buffer.Allocate(buf.Capacity);
loadTestData1(other);
assertEquals(0, buf.CompareTo(other));
assertEquals(0, other.CompareTo(buf));
buf.Position = (1);
assertTrue(buf.CompareTo(other) > 0);
assertTrue(other.CompareTo(buf) < 0);
other.Position = (2);
assertTrue(buf.CompareTo(other) < 0);
assertTrue(other.CompareTo(buf) > 0);
buf.Position = (2);
other.Limit = (5);
assertTrue(buf.CompareTo(other) > 0);
assertTrue(other.CompareTo(buf) < 0);
}
public static void test(int level, Int64Buffer b, bool direct)
{
Show(level, b);
//if (direct != b.IsDirect) // J2N: IsDirect not implemented
// fail("Wrong direction", b);
// Gets and puts
relPut(b);
relGet(b);
absGet(b);
bulkGet(b);
absPut(b);
relGet(b);
absGet(b);
bulkGet(b);
bulkPutArray(b);
relGet(b);
bulkPutBuffer(b);
relGet(b);
// Compact
relPut(b);
b.Position = (13);
b.Compact();
b.Flip();
relGet(b, 13);
// Exceptions
relPut(b);
b.Limit = (b.Capacity / 2);
b.Position = (b.Limit);
tryCatch(b, typeof(BufferUnderflowException), () =>
{
b.Get();
});
tryCatch(b, typeof(BufferOverflowException), () =>
{
b.Put((long)42);
});
// The index must be non-negative and lesss than the buffer's limit.
tryCatch(b, typeof(ArgumentOutOfRangeException), () =>
{
b.Get(b.Limit);
});
tryCatch(b, typeof(ArgumentOutOfRangeException), () =>
{
b.Get(-1);
});
tryCatch(b, typeof(ArgumentOutOfRangeException), () =>
{
b.Put(b.Limit, (long)42);
});
tryCatch(b, typeof(InvalidMarkException), () =>
{
b.Position = (0);
b.Mark();
b.Compact();
b.Reset();
});
// Values
b.Clear();
b.Put((long)0);
b.Put((long)-1);
b.Put((long)1);
b.Put(long.MaxValue);
b.Put(long.MinValue);
//long v; // J2N: Not used
b.Flip();
ck(b, b.Get(), 0);
ck(b, b.Get(), (long)-1);
ck(b, b.Get(), 1);
ck(b, b.Get(), long.MaxValue);
ck(b, b.Get(), long.MinValue);
// Comparison
b.Rewind();
Int64Buffer b2 = Int64Buffer.Allocate(b.Capacity);
b2.Put(b);
b2.Flip();
b.Position = (2);
b2.Position = (2);
if (!b.Equals(b2))
{
for (int i = 2; i < b.Limit; i++)
{
long x = b.Get(i);
long y = b2.Get(i);
if (x != y)
{
output.WriteLine("[" + i + "] " + x + " != " + y);
}
}
fail("Identical buffers not equal", b, b2);
}
if (b.CompareTo(b2) != 0)
{
fail("Comparison to identical buffer != 0", b, b2);
}
b.Limit = (b.Limit + 1);
b.Position = (b.Limit - 1);
b.Put((long)99);
b.Rewind();
b2.Rewind();
if (b.Equals(b2))
{
fail("Non-identical buffers equal", b, b2);
}
if (b.CompareTo(b2) <= 0)
{
fail("Comparison to shorter buffer <= 0", b, b2);
}
b.Limit = (b.Limit - 1);
b.Put(2, (long)42);
if (b.Equals(b2))
{
fail("Non-identical buffers equal", b, b2);
}
if (b.CompareTo(b2) <= 0)
{
fail("Comparison to lesser buffer <= 0", b, b2);
}
// Check equals and compareTo with interesting values
foreach (long x in VALUES)
{
Int64Buffer xb = Int64Buffer.Wrap(new long[] { x });
if (xb.CompareTo(xb) != 0)
{
fail("compareTo not reflexive", xb, xb, x, x);
}
if (!xb.Equals(xb))
{
fail("equals not reflexive", xb, xb, x, x);
}
foreach (long y in VALUES)
{
Int64Buffer yb = Int64Buffer.Wrap(new long[] { y });
if (xb.CompareTo(yb) != -yb.CompareTo(xb))
{
fail("compareTo not anti-symmetric",
xb, yb, x, y);
}
if ((xb.CompareTo(yb) == 0) != xb.Equals(yb))
{
fail("compareTo inconsistent with equals",
xb, yb, x, y);
}
// from Long.compare(x, y)
if (xb.CompareTo(yb) != ((x < y) ? -1 : ((x == y) ? 0 : 1)))
{
fail("Incorrect results for LongBuffer.compareTo",
xb, yb, x, y);
}
if (xb.Equals(yb) != ((x == y) /*|| (x != x) && (y != y)*/))
{
fail("Incorrect results for LongBuffer.equals",
xb, yb, x, y);
}
}
}
// Sub, dup
relPut(b);
relGet(b.Duplicate());
b.Position = (13);
relGet(b.Duplicate(), 13);
relGet(b.Duplicate().Slice(), 13);
relGet(b.Slice(), 13);
relGet(b.Slice().Duplicate(), 13);
// Slice
b.Position = (5);
Int64Buffer sb = b.Slice();
checkSlice(b, sb);
b.Position = (0);
Int64Buffer sb2 = sb.Slice();
checkSlice(sb, sb2);
if (!sb.Equals(sb2))
{
fail("Sliced slices do not match", sb, sb2);
}
if ((sb.HasArray) && (sb.ArrayOffset != sb2.ArrayOffset))
{
fail("Array offsets do not match: "
+ sb.ArrayOffset + " != " + sb2.ArrayOffset, sb, sb2);
}
// Read-only views
b.Rewind();
Int64Buffer rb = b.AsReadOnlyBuffer();
if (!b.Equals(rb))
{
fail("Buffer not equal to read-only view", b, rb);
}
Show(level + 1, rb);
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
relPut(rb);
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
absPut(rb);
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
bulkPutArray(rb);
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
bulkPutBuffer(rb);
});
// put(LongBuffer) should not change source position
Int64Buffer src = Int64Buffer.Allocate(1);
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
rb.Put(src);
});
ck(src, src.Position, 0);
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
rb.Compact();
});
if (rb.GetType().Name.StartsWith("Heap", StringComparison.Ordinal))
{
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
var x = rb.Array;
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
var x = rb.ArrayOffset;
});
if (rb.HasArray)
{
fail("Read-only heap buffer's backing array is accessible",
rb);
}
}
// Bulk puts from read-only buffers
b.Clear();
rb.Rewind();
b.Put(rb);
relPut(b); // Required by testViews
}