public virtual void TestEquals() { // equal to self assertTrue(buf.Equals(buf)); SingleBuffer @readonly = buf.AsReadOnlyBuffer(); assertTrue(buf.Equals(@readonly)); SingleBuffer duplicate = buf.Duplicate(); assertTrue(buf.Equals(duplicate)); // always false, if type mismatch assertFalse(buf.Equals(true)); assertTrue(buf.Capacity > 5); buf.SetLimit(buf.Capacity).SetPosition(0); @readonly.SetLimit(@readonly.Capacity).SetPosition(1); assertFalse(buf.Equals(@readonly)); buf.SetLimit(buf.Capacity - 1).SetPosition(0); duplicate.SetLimit(duplicate.Capacity).SetPosition(0); assertFalse(buf.Equals(duplicate)); }
public static void test(int level, SingleBuffer b, bool direct) { Show(level, b); //if (direct != b.IsDirect) // J2N: IsDirect not supported // 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((float)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, (float)42); }); tryCatch(b, typeof(InvalidMarkException), () => { b.Position = (0); b.Mark(); b.Compact(); b.Reset(); }); // Values b.Clear(); b.Put((float)0); b.Put((float)-1); b.Put((float)1); b.Put(float.MaxValue); b.Put(float.MinValue); b.Put(-float.MaxValue); b.Put(-float.MinValue); b.Put(float.NegativeInfinity); b.Put(float.PositiveInfinity); b.Put(float.NaN); b.Put(0.91697687f); // Changes value if incorrectly swapped float v; b.Flip(); ck(b, b.Get(), 0); ck(b, b.Get(), (float)-1); ck(b, b.Get(), 1); ck(b, b.Get(), float.MaxValue); ck(b, b.Get(), float.MinValue); ck(b, b.Get(), -float.MaxValue); ck(b, b.Get(), -float.MinValue); ck(b, b.Get(), float.NegativeInfinity); ck(b, b.Get(), float.PositiveInfinity); // J2N TODO: Investigate why this comparison fails in .NET and passes in Java //if (BitConversion.SingleToRawInt32Bits(v = b.Get()) != BitConversion.SingleToRawInt32Bits(float.NaN)) if (!float.IsNaN(v = b.Get())) { fail(b, unchecked ((long)float.NaN), (long)v); } ck(b, b.Get(), 0.91697687f); // Comparison b.Rewind(); SingleBuffer b2 = SingleBuffer.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++) { float x = b.Get(i); float y = b2.Get(i); if (x != y || x.CompareTo(y) != 0 ) { 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((float)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, (float)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 (float x in VALUES) { SingleBuffer xb = SingleBuffer.Wrap(new float[] { 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 (float y in VALUES) { SingleBuffer yb = SingleBuffer.Wrap(new float[] { 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); } if (xb.CompareTo(yb) != x.CompareTo(y)) { if (x == 0.0 && y == 0.0) { continue; } fail("Incorrect results for SingleBuffer.compareTo", xb, yb, x, y); } if (xb.Equals(yb) != ((x == y) || (float.IsNaN(x) && float.IsNaN(y)))) { fail("Incorrect results for SingleBuffer.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); SingleBuffer sb = b.Slice(); checkSlice(b, sb); b.Position = (0); SingleBuffer 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(); SingleBuffer 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); }); tryCatch(b, typeof(ReadOnlyBufferException), () => { rb.Compact(); }); if (rb.GetType().Name.StartsWith("Heap", StringComparison.Ordinal)) { tryCatch(b, typeof(ReadOnlyBufferException), () => { var _ = rb.Array; }); tryCatch(b, typeof(ReadOnlyBufferException), () => { var _ = 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 }