public void TestMiscMethods()
{
// coverage for Digest(), IsInStruct, SetFieldName(), AddTypeAnnotation()
StringWriter stringWriter = new StringWriter();
IIonHashWriter ihw = IonHashWriterBuilder
.Standard()
.WithHasherProvider(new IdentityIonHasherProvider())
.WithWriter(IonTextWriterBuilder.Build(stringWriter))
.Build();
TestUtil.AssertEquals(new byte[] { }, ihw.Digest(), "Digests don't match.");
ihw.WriteNull();
TestUtil.AssertEquals(new byte[] { 0x0b, 0x0f, 0x0e }, ihw.Digest(), "Digests don't match.");
ihw.StepIn(IonType.List);
Assert.ThrowsException <InvalidOperationException>(ihw.Digest);
ihw.WriteInt(5);
Assert.ThrowsException <InvalidOperationException>(ihw.Digest);
ihw.StepOut();
TestUtil.AssertEquals(new byte[] { 0x0b, 0xb0, 0x0b, 0x20, 0x05, 0x0e, 0x0e }, ihw.Digest(), "Digests don't match.");
ihw.WriteNull();
TestUtil.AssertEquals(new byte[] { 0x0b, 0x0f, 0x0e }, ihw.Digest(), "Digests don't match.");
Assert.IsFalse(ihw.IsInStruct);
ihw.StepIn(IonType.Struct);
Assert.IsTrue(ihw.IsInStruct);
ihw.SetFieldName("hello");
ihw.AddTypeAnnotation("ion");
ihw.AddTypeAnnotation("hash");
ihw.WriteSymbol("world");
ihw.StepOut();
Assert.IsFalse(ihw.IsInStruct);
TestUtil.AssertEquals(new byte[] { 0x0b, 0xd0,
0x0c, 0x0b, 0x70, 0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x0c, 0x0e, // hello:
0x0c, 0x0b, 0xe0,
0x0c, 0x0b, 0x70, 0x69, 0x6f, 0x6e, 0x0c, 0x0e, // ion::
0x0c, 0x0b, 0x70, 0x68, 0x61, 0x73, 0x68, 0x0c, 0x0e, // hash::
0x0c, 0x0b, 0x70, 0x77, 0x6f, 0x72, 0x6c, 0x64, 0x0c, 0x0e, // world
0x0c, 0x0e,
0x0e },
ihw.Digest(),
"Digests don't match.");
ihw.Finish();
//Commented out following assertion because it is failing
//https://github.com/amzn/ion-hash-dotnet/issues/5
//Assert.AreEqual("null [5] null {hello:ion::hash::world}", stringWriter);
}
public void TestExtraStepOut()
{
IIonHashWriter ihw = IonHashWriterBuilder
.Standard()
.WithHasherProvider(new IdentityIonHasherProvider())
.WithWriter(IonTextWriterBuilder.Build(new StringWriter()))
.Build();
Assert.ThrowsException <InvalidOperationException>(ihw.StepOut);
}
public void TestUnresolvedSid()
{
// unresolved SIDs (such as SID 10 here) should result in an exception
SymbolToken symbolUnresolvedSid = new SymbolToken(null, 10);
using (MemoryStream memoryStream = new MemoryStream())
{
IIonHashWriter writer = IonHashWriterBuilder
.Standard()
.WithHasherProvider(new IdentityIonHasherProvider())
.WithWriter(IonBinaryWriterBuilder.Build(memoryStream))
.Build();
Assert.ThrowsException <UnknownSymbolException>(() => writer.WriteSymbolToken(symbolUnresolvedSid));
}
}
public void Test(TestValue tv, string s)
{
IIonHashWriter hashWriter = null;
try
{
hashWriter = IonHashWriterBuilder.Standard()
.WithWriter(IonTextWriterBuilder.Build(new StringWriter()))
.WithHasherProvider(HasherProvider)
.Build();
hashWriter.WriteValues(IonReaderBuilder.Build(s));
}
catch (IonException e)
{
if (tv.IsValidIon())
{
throw e;
}
}
IIonHashReader hashReader = null;
try
{
hashReader = IonHashReaderBuilder.Standard()
.WithReader(IonReaderBuilder.Build(s))
.WithHasherProvider(HasherProvider)
.Build();
hashReader.MoveNext();
hashReader.MoveNext();
}
catch (IonException e)
{
if (tv.IsValidIon())
{
throw e;
}
}
if (tv.validIon == null || tv.validIon.Value == true)
{
TestUtil.AssertEquals(
hashWriter.Digest(),
hashReader.Digest(),
"Reader/writer hashes for line |" + tv.AsIon() + "| as |" + s + "| don't match");
}
}
private void AssertNoFieldnameInCurrentHash(string value, byte[] expectedBytes)
{
var reader = IonReaderBuilder.Build(value);
reader.MoveNext();
MemoryStream memoryStream = new MemoryStream();
var writer = IonBinaryWriterBuilder.Build(memoryStream);
writer.StepIn(IonType.Struct);
IIonHashWriter ihw = IonHashWriterBuilder
.Standard()
.WithHasherProvider(new IdentityIonHasherProvider())
.WithWriter(writer)
.Build();
ihw.SetFieldName("field_name");
ihw.WriteValue(reader);
byte[] actual = ihw.Digest();
TestUtil.AssertEquals(expectedBytes, actual, "Digest arrays mismatch");
writer.StepOut();
ihw.Finish();
writer.Finish();
memoryStream.Flush();
byte[] bytes = memoryStream.ToArray();
memoryStream.Close();
reader = IonReaderBuilder.Build(bytes);
reader.MoveNext();
reader.StepIn();
IIonHashReader ihr = IonHashReaderBuilder
.Standard()
.WithHasherProvider(new IdentityIonHasherProvider())
.WithReader(reader)
.Build();
ihr.MoveNext(); //List
ihr.MoveNext(); //none
actual = ihr.Digest();
TestUtil.AssertEquals(expectedBytes, actual, "Digest arrays mismatch");
}
public void FieldNameAsymmetry()
{
var memoryStream = new MemoryStream();
var writer = IonBinaryWriterBuilder.Build(memoryStream);
IIonHashWriter ihw = IonHashWriterBuilder
.Standard()
.WithHasherProvider(new IdentityIonHasherProvider())
.WithWriter(writer)
.Build();
// A nested struct: {a:{b:1}}
writer.StepIn(IonType.Struct);
writer.SetFieldName("a");
ihw.StepIn(IonType.Struct);
ihw.SetFieldName("b");
ihw.WriteInt(1);
ihw.StepOut();
byte[] writeHash = ihw.Digest();
ihw.Flush();
writer.StepOut();
writer.Flush();
var loader = IonLoader.Default;
var ionValue = loader.Load(memoryStream.ToArray()) //Datagram
.GetElementAt(0) //first struct
.GetField("a"); //inner struct
IIonReader reader = IonReaderBuilder.Build(ionValue);
IIonHashReader ihr = IonHashReaderBuilder
.Standard()
.WithReader(reader)
.WithHasherProvider(new IdentityIonHasherProvider())
.Build();
ihr.MoveNext(); // struct
ihr.MoveNext(); // none
TestUtil.AssertEquals(writeHash, ihr.Digest(), "Digest arrays mismatch");
}