private static int GetLengthForStringDataNode(StringDataNode stringDataNode)
{
FieldInfo field = typeof(StringDataNode)
.GetField("length", BindingFlags.NonPublic | BindingFlags.Instance);
return((byte)field.GetValue(stringDataNode));
}
public void Test_Getting_Edges()
{
IDataNode dataNode = new StringDataNode();
dataNode.Edges
.Should()
.BeEmpty();
}
public void Test_Writing_A_Null_String()
{
IDataNode dataNode = new StringDataNode();
Action action = () => dataNode.Write(binaryWriter, null);
action.Should()
.ThrowArgumentNullException("value");
}
public void Test_Reading_A_String_From_A_Null_Reader()
{
IDataNode dataNode = new StringDataNode();
Action action = () => dataNode.Read(null);
action.Should()
.ThrowArgumentNullException("binaryReader");
}
public void Test_Writing_A_String_To_A_Null_BinaryWriter()
{
IDataNode dataNode = new StringDataNode();
Action action = () => dataNode.Write(null, string.Empty);
action.Should()
.ThrowArgumentNullException("binaryWriter");
}
public void Test_Writing_A_Non_String_Object()
{
IDataNode dataNode = new StringDataNode();
int value = 1;
Action action = () => dataNode.Write(binaryWriter, value);
action.Should()
.ThrowExactly <ArgumentException>()
.WithMessage($"Cannot write value of type {value.GetType().Name} as a string.");
}
public void Test_Writing_An_Offline_String_With_Invalid_Length()
{
IDataNode dataNode = new StringDataNode();
string value = new string('a', StringDataNode.OFFSET_STRING_MAX_LENGTH + 1);
Action action = () => dataNode.Write(binaryWriter, value);
action.Should()
.ThrowExactly <ArgumentException>()
.WithMessage($"String length is longer than {StringDataNode.OFFSET_STRING_MAX_LENGTH}.");
}
public void Test_Writing_An_Inline_String_Longer_Than_The_Fixed_Size()
{
byte length = 20;
IDataNode dataNode = new StringDataNode(length);
string value = new string('a', length + 1);
Action action = () => dataNode.Write(binaryWriter, value);
action.Should()
.ThrowExactly <ArgumentException>()
.WithMessage($"String length is longer than {length}.");
}
public void VerifyTree(IDataNode dataNode)
{
dataNode.Should().BeOfType <UserTypeDataNode <ClassWithStringInline> >();
dataNode.Edges.Should().HaveCount(1);
VerifyEdge(dataNode.Edges[0], this, v => v.Value);
StringDataNode stringDataNode = dataNode.Edges[0].ChildNode.Should().BeOfType <StringDataNode>()
.Subject;
GetLengthForStringDataNode(stringDataNode).Should().Be(LENGTH);
}
public void Test_Writing_An_Inline_String_Of_Exactly_The_Fixed_Size()
{
byte length = 20;
IDataNode dataNode = new StringDataNode(length);
string value = new string('b', length);
dataNode.Write(binaryWriter, value);
Received.InOrder(() =>
{
binaryWriter.WriteBytes(Matcher.ForEquivalentArray(Encoding.ASCII.GetBytes(value)));
});
}
public void VerifyTree(IDataNode dataNode)
{
dataNode.Should().BeOfType <UserTypeDataNode <ClassWithStringAtOffset> >();
dataNode.Edges.Should().HaveCount(1);
VerifyEdge(dataNode.Edges[0], this, v => v.Value);
StringDataNode stringDataNode = dataNode.Edges[0].ChildNode.Should().BeOfType <OffsetNode>()
.Subject.ChildNode.Should().BeOfType <StringDataNode>()
.Subject;
GetLengthForStringDataNode(stringDataNode).Should().Be(StringDataNode.OFFSET_STRING_MAX_LENGTH);
}
public void Test_Reading_An_Inline_String_Of_Exactly_The_Fixed_Size()
{
byte length = 20;
IDataNode dataNode = new StringDataNode(length);
string value = new string('d', length);
binaryReader.ReadBytes(length).Returns(Encoding.ASCII.GetBytes(value));
object result = dataNode.Read(binaryReader);
result.Should().Be(value);
binaryReader.Received().ReadBytes(length);
}
public void Test_Writing_An_Offline_String()
{
IDataNode dataNode = new StringDataNode();
string value = "my value";
dataNode.Write(binaryWriter, value);
Received.InOrder(() =>
{
binaryWriter.WriteByte((byte)value.Length);
binaryWriter.WriteBytes(Matcher.ForEquivalentArray(Encoding.ASCII.GetBytes(value)));
binaryWriter.WriteByte(0);
});
}
public void Test_Reading_An_Inline_String_Of_Not_Exactly_The_Fixed_Size()
{
byte length = 20;
IDataNode dataNode = new StringDataNode(length);
string value = new string('c', length / 2);
byte[] bytes = new byte[length];
Array.Copy(Encoding.ASCII.GetBytes(value), bytes, value.Length);
binaryReader.ReadBytes(length).Returns(bytes);
object result = dataNode.Read(binaryReader);
result.Should().Be(value);
binaryReader.Received().ReadBytes(length);
}
public void Test_Reading_An_Offline_String()
{
IDataNode dataNode = new StringDataNode();
string value = "value";
binaryReader.ReadByte().Returns((byte)value.Length, (byte)0);
binaryReader.ReadBytes(value.Length).Returns(Encoding.ASCII.GetBytes(value));
object result = dataNode.Read(binaryReader);
result.Should().Be(value);
Received.InOrder(() =>
{
binaryReader.ReadByte();
binaryReader.ReadBytes(value.Length);
binaryReader.ReadByte();
});
}
