public static void CborReader_MultipleRootValuesAllowed_ReadingBeyondEndOfBuffer_ShouldThrowInvalidOperationException()
{
string hexEncoding = "810102";
var reader = new CborReader(hexEncoding.HexToByteArray(), allowMultipleRootLevelValues: true);
Assert.Equal(CborReaderState.StartArray, reader.PeekState());
reader.ReadStartArray();
reader.ReadInt32();
reader.ReadEndArray();
Assert.Equal(CborReaderState.UnsignedInteger, reader.PeekState());
reader.ReadInt32();
Assert.Equal(CborReaderState.Finished, reader.PeekState());
Assert.Throws <InvalidOperationException>(() => reader.ReadInt32());
}
public static void ReadInt32_OutOfRangeValues_ShouldThrowOverflowException(string hexEncoding)
{
byte[] encoding = hexEncoding.HexToByteArray();
var reader = new CborReader(encoding);
Assert.Throws <OverflowException>(() => reader.ReadInt32());
Assert.Equal(encoding.Length, reader.BytesRemaining);
}
public static void ReadInt32_SingleValue_HappyPath(int expectedResult, string hexEncoding)
{
byte[] data = hexEncoding.HexToByteArray();
var reader = new CborReader(data);
long actualResult = reader.ReadInt32();
Assert.Equal(expectedResult, actualResult);
Assert.Equal(CborReaderState.Finished, reader.PeekState());
}
internal static void ReadMap_UnsortedKeys_ConformanceNotRequiringSortedKeys_ShouldSucceed(CborConformanceLevel level, object[] keySequence, string hexEncoding)
{
var reader = new CborReader(hexEncoding.HexToByteArray(), level);
reader.ReadStartMap();
foreach (object key in keySequence)
{
Helpers.VerifyValue(reader, key); // verify key
reader.ReadInt32(); // value is always an integer
}
reader.ReadEndMap();
}
internal static void ReadMap_DuplicateKeys_StrictConformance_ShouldThrowFormatException(CborConformanceLevel level, object dupeKey, string hexEncoding)
{
var reader = new CborReader(hexEncoding.HexToByteArray(), level);
reader.ReadStartMap();
Helpers.VerifyValue(reader, dupeKey);
reader.ReadInt32();
int bytesRead = reader.BytesRead;
int bytesRemaining = reader.BytesRemaining;
CborReaderState state = reader.PeekState();
Assert.Throws <FormatException>(() => Helpers.VerifyValue(reader, dupeKey));
// ensure reader state is preserved
Assert.Equal(bytesRead, reader.BytesRead);
Assert.Equal(bytesRemaining, reader.BytesRemaining);
Assert.Equal(state, reader.PeekState());
}
internal static void ReadMap_UnsortedKeys_ConformanceRequiringSortedKeys_ShouldThrowFormatException(CborConformanceLevel level, object[] keySequence, string hexEncoding)
{
var reader = new CborReader(hexEncoding.HexToByteArray(), level);
reader.ReadStartMap();
foreach (object key in keySequence.SkipLast(1))
{
Helpers.VerifyValue(reader, key); // verify key
reader.ReadInt32(); // value is always an integer
}
int bytesRead = reader.BytesRead;
int bytesRemaining = reader.BytesRemaining;
CborReaderState state = reader.PeekState();
// the final element violates sorting invariant
Assert.Throws <FormatException>(() => Helpers.VerifyValue(reader, keySequence.Last()));
// ensure reader state is preserved
Assert.Equal(bytesRead, reader.BytesRead);
Assert.Equal(bytesRemaining, reader.BytesRemaining);
Assert.Equal(state, reader.PeekState());
}
public static void VerifyValue(CborReader reader, object expectedValue, bool expectDefiniteLengthCollections = true)
{
switch (expectedValue)
{
case null:
Assert.Equal(CborReaderState.Null, reader.PeekState());
reader.ReadNull();
break;
case bool expected:
Assert.Equal(CborReaderState.Boolean, reader.PeekState());
bool b = reader.ReadBoolean();
Assert.Equal(expected, b);
break;
case int expected:
VerifyPeekInteger(reader, isUnsignedInteger: expected >= 0);
int i = reader.ReadInt32();
Assert.Equal(expected, i);
break;
case long expected:
VerifyPeekInteger(reader, isUnsignedInteger: expected >= 0);
long l = reader.ReadInt64();
Assert.Equal(expected, l);
break;
case ulong expected:
VerifyPeekInteger(reader, isUnsignedInteger: true);
ulong u = reader.ReadUInt64();
Assert.Equal(expected, u);
break;
case float expected:
Assert.Equal(CborReaderState.SinglePrecisionFloat, reader.PeekState());
float f = reader.ReadSingle();
Assert.Equal(expected, f);
break;
case double expected:
Assert.Equal(CborReaderState.DoublePrecisionFloat, reader.PeekState());
double d = reader.ReadDouble();
Assert.Equal(expected, d);
break;
case string expected:
Assert.Equal(CborReaderState.TextString, reader.PeekState());
string s = reader.ReadTextString();
Assert.Equal(expected, s);
break;
case byte[] expected:
Assert.Equal(CborReaderState.ByteString, reader.PeekState());
byte[] bytes = reader.ReadByteString();
Assert.Equal(expected.ByteArrayToHex(), bytes.ByteArrayToHex());
break;
case string[] expectedChunks:
Assert.Equal(CborReaderState.StartTextString, reader.PeekState());
reader.ReadStartTextStringIndefiniteLength();
foreach (string expectedChunk in expectedChunks)
{
Assert.Equal(CborReaderState.TextString, reader.PeekState());
string chunk = reader.ReadTextString();
Assert.Equal(expectedChunk, chunk);
}
Assert.Equal(CborReaderState.EndTextString, reader.PeekState());
reader.ReadEndTextStringIndefiniteLength();
break;
case byte[][] expectedChunks:
Assert.Equal(CborReaderState.StartByteString, reader.PeekState());
reader.ReadStartByteStringIndefiniteLength();
foreach (byte[] expectedChunk in expectedChunks)
{
Assert.Equal(CborReaderState.ByteString, reader.PeekState());
byte[] chunk = reader.ReadByteString();
Assert.Equal(expectedChunk.ByteArrayToHex(), chunk.ByteArrayToHex());
}
Assert.Equal(CborReaderState.EndByteString, reader.PeekState());
reader.ReadEndByteStringIndefiniteLength();
break;
case object[] nested when CborWriterTests.Helpers.IsCborMapRepresentation(nested):
VerifyMap(reader, nested, expectDefiniteLengthCollections);
break;
case object[] nested:
VerifyArray(reader, nested, expectDefiniteLengthCollections);
break;
default:
throw new ArgumentException($"Unrecognized argument type {expectedValue.GetType()}");
}
public static void ReadInt32_InvalidTypes_ShouldThrowInvalidOperationException(string hexEncoding)
{
byte[] encoding = hexEncoding.HexToByteArray();
var reader = new CborReader(encoding);
InvalidOperationException exn = Assert.Throws <InvalidOperationException>(() => reader.ReadInt32());
Assert.Equal("Data item major type mismatch.", exn.Message);
Assert.Equal(encoding.Length, reader.BytesRemaining);
}
public static void VerifyValue(CborReader reader, object expectedValue, bool expectDefiniteLengthCollections = true)
{
switch (expectedValue)
{
case null:
Assert.Equal(CborReaderState.Null, reader.PeekState());
reader.ReadNull();
break;
case bool expected:
Assert.Equal(CborReaderState.Boolean, reader.PeekState());
bool b = reader.ReadBoolean();
Assert.Equal(expected, b);
break;
case int expected:
VerifyPeekInteger(reader, isUnsignedInteger: expected >= 0);
int i = reader.ReadInt32();
Assert.Equal(expected, i);
break;
case long expected:
VerifyPeekInteger(reader, isUnsignedInteger: expected >= 0);
long l = reader.ReadInt64();
Assert.Equal(expected, l);
break;
case ulong expected:
VerifyPeekInteger(reader, isUnsignedInteger: true);
ulong u = reader.ReadUInt64();
Assert.Equal(expected, u);
break;
case float expected:
Assert.Equal(CborReaderState.SinglePrecisionFloat, reader.PeekState());
float f = reader.ReadSingle();
Assert.Equal(expected, f);
break;
case double expected:
Assert.Equal(CborReaderState.DoublePrecisionFloat, reader.PeekState());
double d = reader.ReadDouble();
Assert.Equal(expected, d);
break;
case decimal expected:
Assert.Equal(CborReaderState.Tag, reader.PeekState());
decimal dec = reader.ReadDecimal();
Assert.Equal(expected, dec);
break;
case BigInteger expected:
Assert.Equal(CborReaderState.Tag, reader.PeekState());
BigInteger bigint = reader.ReadBigInteger();
Assert.Equal(expected, bigint);
break;
case DateTimeOffset expected:
Assert.Equal(CborReaderState.Tag, reader.PeekState());
DateTimeOffset dto = reader.ReadDateTimeOffset();
Assert.Equal(expected, dto);
break;
case string expected:
Assert.Equal(CborReaderState.TextString, reader.PeekState());
string s = reader.ReadTextString();
Assert.Equal(expected, s);
break;
case byte[] expected:
Assert.Equal(CborReaderState.ByteString, reader.PeekState());
byte[] bytes = reader.ReadByteString();
Assert.Equal(expected.ByteArrayToHex(), bytes.ByteArrayToHex());
break;
case string[] expectedChunks when CborWriterTests.Helpers.IsIndefiniteLengthByteString(expectedChunks):
byte[][] expectedByteChunks = expectedChunks.Skip(1).Select(ch => ch.HexToByteArray()).ToArray();
VerifyValue(reader, expectedByteChunks, expectDefiniteLengthCollections);
break;
case string[] expectedChunks:
Assert.Equal(CborReaderState.StartTextString, reader.PeekState());
reader.ReadStartTextStringIndefiniteLength();
foreach (string expectedChunk in expectedChunks)
{
Assert.Equal(CborReaderState.TextString, reader.PeekState());
string chunk = reader.ReadTextString();
Assert.Equal(expectedChunk, chunk);
}
Assert.Equal(CborReaderState.EndTextString, reader.PeekState());
reader.ReadEndTextStringIndefiniteLength();
break;
case byte[][] expectedChunks:
Assert.Equal(CborReaderState.StartByteString, reader.PeekState());
reader.ReadStartByteStringIndefiniteLength();
foreach (byte[] expectedChunk in expectedChunks)
{
Assert.Equal(CborReaderState.ByteString, reader.PeekState());
byte[] chunk = reader.ReadByteString();
Assert.Equal(expectedChunk.ByteArrayToHex(), chunk.ByteArrayToHex());
}
Assert.Equal(CborReaderState.EndByteString, reader.PeekState());
reader.ReadEndByteStringIndefiniteLength();
break;
case object[] nested when CborWriterTests.Helpers.IsCborMapRepresentation(nested):
VerifyMap(reader, nested, expectDefiniteLengthCollections);
break;
case object[] nested when CborWriterTests.Helpers.IsEncodedValueRepresentation(nested):
string expectedHexEncoding = (string)nested[1];
string actualHexEncoding = reader.ReadEncodedValue().ByteArrayToHex();
Assert.Equal(expectedHexEncoding, actualHexEncoding);
break;
case object[] nested when CborWriterTests.Helpers.IsTaggedValueRepresentation(nested):
CborTag expectedTag = (CborTag)nested[0];
object expectedNestedValue = nested[1];
Assert.Equal(CborReaderState.Tag, reader.PeekState());
Assert.Equal(expectedTag, reader.ReadTag());
VerifyValue(reader, expectedNestedValue, expectDefiniteLengthCollections);
break;
case object[] nested:
VerifyArray(reader, nested, expectDefiniteLengthCollections);
break;
default:
throw new ArgumentException($"Unrecognized argument type {expectedValue.GetType()}");
}