public void AssertDoesNothingIfAssertSucceeds()
{
var bytecode = new List<byte>();
bytecode.Add(Bytecode.ASSERT);
bytecode.AddRange(BitConverter.GetBytes(1));
var interpreter = new Interpreter(
bytecode.ToArray(),
new List<string> { "hello", "world" },
new List<string> { "line 1", "line 2" },
0);
interpreter.Stack.Push(1);
var output = new List<string>();
interpreter.SetPrinter((string str) => output.Add(str));
interpreter.Run();
Assert.AreEqual(0, interpreter.Stack.Count);
Assert.AreEqual(5, interpreter.PC);
Assert.AreEqual(0, output.Count);
}
public void PrintIntWorks()
{
var bytecode = new List<byte>();
bytecode.Add(Bytecode.PUSH_INT);
bytecode.AddRange(BitConverter.GetBytes(23L));
bytecode.Add(Bytecode.PRINT_INT);
var interpreter = new Interpreter(bytecode.ToArray(), new List<string> { "" }, null, 0);
var output = new List<string>();
interpreter.SetPrinter((string str) => output.Add(str));
interpreter.Run();
Assert.AreEqual(0, interpreter.Stack.Count);
Assert.AreEqual(10, interpreter.PC);
Assert.AreEqual(1, output.Count);
Assert.AreEqual("23", output[0]);
}
public void PrintStringWorks()
{
var bytecode = new List<byte>();
bytecode.Add(Bytecode.PUSH_STRING);
bytecode.AddRange(BitConverter.GetBytes(1));
bytecode.Add(Bytecode.PRINT_STRING);
var interpreter = new Interpreter(bytecode.ToArray(), new List<string> { "hello", "world" }, null, 0);
var output = new List<string>();
interpreter.SetPrinter((string str) => output.Add(str));
interpreter.Run();
Assert.AreEqual(0, interpreter.Stack.Count);
Assert.AreEqual(6, interpreter.PC);
Assert.AreEqual(1, output.Count);
Assert.AreEqual("world", output[0]);
}
public void AssertPrintsDiagnosticMessageIfAssertFails()
{
var bytecode = new List<byte>();
bytecode.Add(Bytecode.ASSERT);
bytecode.AddRange(BitConverter.GetBytes(1));
var interpreter = new Interpreter(
bytecode.ToArray(),
new List<string> { "hello", "world" },
new List<string> { "line 1", "line 2" },
0);
interpreter.Stack.Push(0);
var output = new List<string>();
interpreter.SetPrinter((string str) => output.Add(str));
interpreter.Run();
Assert.AreEqual(0, interpreter.Stack.Count);
Assert.AreEqual(5, interpreter.PC);
Assert.AreEqual(2, output.Count);
Assert.AreEqual("Assert failed at line 2", output[0]);
Assert.AreEqual("\n\tline 2", output[1]);
}