public void TestOptionInvalidCastException()
{
var option = new CoapOption(0);
Assert.Throws <InvalidCastException>(() => _ = option.ValueString);
Assert.Throws <InvalidCastException>(() => _ = option.ValueString = "test");
Assert.Throws <InvalidCastException>(() => _ = option.ValueOpaque);
Assert.Throws <InvalidCastException>(() => _ = option.ValueOpaque = Encoding.UTF8.GetBytes("test"));
Assert.Throws <InvalidCastException>(() => _ = option.ValueUInt);
Assert.Throws <InvalidCastException>(() => _ = option.ValueUInt = 1234);
Assert.Throws <InvalidCastException>(() => _ = option.DefaultString);
Assert.Throws <InvalidCastException>(() => _ = option.DefaultOpaque);
Assert.Throws <InvalidCastException>(() => _ = option.DefaultUInt);
option.FromBytes(null); // No-op
option.FromBytes(new byte[] {}); // No-op
Assert.Throws <InvalidCastException>(() => option.FromBytes(new byte[] { 0x12 }));
}
public void TestOpaqueOption()
{
var option = new CoapOption(0, type: OptionType.Opaque);
option.ValueOpaque = new byte[] { 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xF0 };
Assert.AreEqual(8, option.Length);
Assert.AreEqual(new byte[] { 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xF0 }, option.ValueOpaque);
Assert.AreEqual(new byte[] { 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xF0 }, option.GetBytes());
option.FromBytes(new byte[] { 0xAA, 0x55, 0x11 });
Assert.AreEqual(3, option.Length);
Assert.AreEqual(new byte[] { 0xAA, 0x55, 0x11 }, option.ValueOpaque);
}
public void TestValueOption(uint value, int length, byte[] expected)
{
var optionToBytes = new CoapOption(0, type: OptionType.UInt, maxLength: 4);
optionToBytes.ValueUInt = value;
Assert.AreEqual(length, optionToBytes.Length);
Assert.AreEqual(expected, optionToBytes.GetBytes());
var optionFromBytes = new CoapOption(0, type: OptionType.UInt, maxLength: 4);
optionFromBytes.FromBytes(expected);
Assert.AreEqual(length, optionFromBytes.Length);
Assert.AreEqual(value, optionFromBytes.ValueUInt);
}