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 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");
}