public void CreateByteArrayData_Fact()
{
var x = new byte[0];
var mock = new MockIOBuffer(x);
mock.Storage.ShouldReference(x);
}
public void ReadPastEndThrows_Fact()
{
var mock = new MockIOBuffer(0x0a);
var output = new byte[8];
var e = Trap.Exception(() => mock.ReadInto(output, 0, 4));
e.ShouldBeOfType(typeof(IndexOutOfRangeException));
}
public void ShouldObserveOutput(ushort address, params byte[] expectedOutput)
{
MockIOBuffer output = GetDevice(address)
.Output;
output.Storage.ShouldEnumerateEqual(expectedOutput);
output.Clear();
}
public void AppendWithBufferGrowth_Fact()
{
// storage is | _A_ | _B_ | _C_ | _D_ |
// readIndex is 0
// append | _1_ | _2_ |
// storage should become => | _A_ | _B_ | _C_ | _D_ | _1_ | _2_ |
var mock = new MockIOBuffer(0x0a, 0x0b, 0x0c, 0x0d);
mock.Append(1, 2);
mock.Storage.ShouldEnumerateEqual(0x0a, 0x0b, 0x0c, 0x0d, 1, 2);
}
public void AppendWithShiftingIndex_Fact()
{
// storage is | _A_ | _B_ | _C_ | _D_ |
// readIndex is 3
// append | _1_ | _2_ |
// storage should become => | _A_ | _D_ | _1_ | _2_ |
// readIndex should become 1
var mock = new MockIOBuffer(0x0a, 0x0b, 0x0c, 0x0d);
mock.ReadIndex = 3;
mock.Append(1, 2);
mock.Storage.ShouldEnumerateEqual(0x0A, 0x0D, 1, 2);
mock.ReadIndex.ShouldEqual(1);
}
public void Read_Fact()
{
var mock = new MockIOBuffer(0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f);
var output = new byte[8];
mock.ReadInto(output, 3, 2);
output.ShouldEnumerateEqual(0, 0, 0, 0x0a, 0x0b, 0, 0, 0);
mock.ReadIndex.ShouldEqual(2);
mock.ReadInto(output, 3, 3);
output.ShouldEnumerateEqual(0, 0, 0, 0x0c, 0x0d, 0x0e, 0, 0);
mock.ReadIndex.ShouldEqual(5);
mock.ReadInto(output, 0, 1);
output.ShouldEnumerateEqual(0x0f, 0, 0, 0x0c, 0x0d, 0x0e, 0, 0);
mock.ReadIndex.ShouldEqual(6);
}
public void CreateSingleByteData_Fact()
{
var mock = new MockIOBuffer(0xAB);
mock.Storage.ShouldEnumerateEqual(0xab);
}
public void CreateNullData_Fact()
{
var exception = Trap.Exception(() => { var buffer = new MockIOBuffer(null); });
exception.ShouldBeOfType(typeof(ArgumentNullException));
}
public void CreateNoData_Fact()
{
var mock = new MockIOBuffer();
mock.Storage.Length.ShouldEqual(0);
}
public void CreateMultiByteData_Fact()
{
var mock = new MockIOBuffer(1, 2, 3);
mock.Storage.ShouldEnumerateEqual(1, 2, 3);
}
public DeviceBuffers(ushort address)
{
Address = address;
Input = new MockIOBuffer();
Output = new MockIOBuffer();
}