public void AssembleInstruction_Throws_ArgumentOutOfRangeException_When_Address_Is_Greater_Than_15_bits()
{
// arrange
var instruction = new AddressInstruction(65536);
var assembler = new HackAddressInstructionAssembler();
// act
TestDelegate testDelegate = () => assembler.AssembleInstruction(instruction);
// assert
Assert.Throws <ArgumentOutOfRangeException>(testDelegate);
}
public void AssembleInstruction_Throws_ArgumentOutOfRangeException_When_Address_Is_Greater_Than_15_bits()
{
// arrange
var instruction = new AddressInstruction(65536);
var assembler = new HackAddressInstructionAssembler();
// act
TestDelegate testDelegate = () => assembler.AssembleInstruction(instruction);
// assert
Assert.Throws<ArgumentOutOfRangeException>(testDelegate);
}
public void AssembleInstruction_Returns_Single_Line()
{
// arrange
var instruction = new AddressInstruction(1234);
var assembler = new HackAddressInstructionAssembler();
// act
string[] result = assembler.AssembleInstruction(instruction);
// assert
Assert.AreEqual(1, result.Length);
}
public void AssembleInstruction_Returns_Single_Line()
{
// arrange
var instruction = new AddressInstruction(1234);
var assembler = new HackAddressInstructionAssembler();
// act
string[] result = assembler.AssembleInstruction(instruction);
// assert
Assert.AreEqual(1, result.Length);
}
public void AssembleInstruction_Returns_Line_Starts_With_Zero()
{
// arrange
var instruction = new AddressInstruction(1234);
var assembler = new HackAddressInstructionAssembler();
// act
string[] result = assembler.AssembleInstruction(instruction);
string line = result[0];
// assert
Assert.AreEqual('0', line[0]);
}
public void AssembleInstruction_Returns_16_Bit_Line()
{
// arrange
var instruction = new AddressInstruction(1234);
var assembler = new HackAddressInstructionAssembler();
// act
string[] result = assembler.AssembleInstruction(instruction);
string line = result[0];
// assert
Assert.AreEqual(16, line.Length);
}
public void AssembleInstruction_Returns_Line_Starts_With_Zero()
{
// arrange
var instruction = new AddressInstruction(1234);
var assembler = new HackAddressInstructionAssembler();
// act
string[] result = assembler.AssembleInstruction(instruction);
string line = result[0];
// assert
Assert.AreEqual('0', line[0]);
}
public void AssembleInstruction_Returns_16_Bit_Line()
{
// arrange
var instruction = new AddressInstruction(1234);
var assembler = new HackAddressInstructionAssembler();
// act
string[] result = assembler.AssembleInstruction(instruction);
string line = result[0];
// assert
Assert.AreEqual(16, line.Length);
}
public void AssembleInstruction_Returns_Binary_Representation_Of_Address_Instruction(int address, string expected)
{
// arrange
var instruction = new AddressInstruction(address);
var assembler = new HackAddressInstructionAssembler();
// act
string[] result = assembler.AssembleInstruction(instruction);
string line = result[0];
// assert
Assert.AreEqual(1, result.Length);
Assert.AreEqual(expected.Replace(" ", ""), line);
}
public void VisitAddressInstruction_Delegates_To_AddressInstructionAssembler()
{
// arrange
var computeAssembler = Substitute.For<IInstructionAssembler<ComputeInstruction>>();
var addressAssembler = Substitute.For<IInstructionAssembler<AddressInstruction>>();
IInstructionVisitor<string[]> visitor = new AssemblyInstructionVisitor(computeAssembler, addressAssembler);
var instruction = new AddressInstruction(1234);
// act
visitor.VisitInstruction(instruction);
// assert
addressAssembler.Received().AssembleInstruction(Arg.Is(instruction));
}
public void AssembleInstruction_Returns_Binary_Representation_Of_Address_Instruction(int address, string expected)
{
// arrange
var instruction = new AddressInstruction(address);
var assembler = new HackAddressInstructionAssembler();
// act
string[] result = assembler.AssembleInstruction(instruction);
string line = result[0];
// assert
Assert.AreEqual(1, result.Length);
Assert.AreEqual(expected.Replace(" ",""), line);
}
[Test] //TODO get rid of these useless tests
public void VisitAddressInstruction_Delegates_To_AddressInstructionAssembler()
{
// arrange
var computeAssembler = Substitute.For <IInstructionAssembler <ComputeInstruction> >();
var addressAssembler = Substitute.For <IInstructionAssembler <AddressInstruction> >();
IInstructionVisitor <string[]> visitor = new AssemblyInstructionVisitor(computeAssembler, addressAssembler);
var instruction = new AddressInstruction(1234);
// act
visitor.VisitInstruction(instruction);
// assert
addressAssembler.Received().AssembleInstruction(Arg.Is(instruction));
}
public bool VisitInstruction(AddressInstruction instruction)
{
return(false);
}
public string[] VisitInstruction(AddressInstruction instruction)
{
return(_addressAssembler.AssembleInstruction(instruction));
}