public void EnumeratorClone()
{
p = LoadProgramFrom("programs/Concretise.bpl");
var block = GetMain(p).Blocks[0];
var blockEnumerator = new BlockCmdEnumerator(block);
Assert.AreEqual(5, blockEnumerator.Count);
blockEnumerator.MoveNext();
blockEnumerator.MoveNext();
var copiedblockEnumerator = blockEnumerator.Clone();
var oldPosition = blockEnumerator.Current;
blockEnumerator.MoveNext();
// The copied blockEnumerator shouldn't have moved.
Assert.AreSame(oldPosition, copiedblockEnumerator.Current);
copiedblockEnumerator.MoveNext();
Assert.AreSame(blockEnumerator.Current, copiedblockEnumerator.Current);
oldPosition = copiedblockEnumerator.Current;
copiedblockEnumerator.MoveNext();
// The blockEnumerator shouldn't have moved.
Assert.AreSame(oldPosition, blockEnumerator.Current);
}
public void EntryWithImmediateGoto()
{
p = LoadProgramFrom("programs/EntryWithImmediateGoto.bpl");
var block = GetMain(p).Blocks[0];
var blockEnumerator = new BlockCmdEnumerator(block);
Assert.AreEqual(1, blockEnumerator.Count);
blockEnumerator.MoveNext();
Assert.AreEqual("goto end;", TrimNewLines(blockEnumerator.Current.ToString()));
}
public void EnumeratorHitEnd()
{
p = LoadProgramFrom("programs/GotoMultiplePaths.bpl");
var block = GetMain(p).Blocks[0];
var blockEnumerator = new BlockCmdEnumerator(block);
Assert.AreEqual(2, blockEnumerator.Count);
bool ok = blockEnumerator.MoveNext();
Assert.IsTrue(ok);
Assert.AreSame(block.Cmds[0], blockEnumerator.Current);
ok = blockEnumerator.MoveNext();
Assert.IsTrue(ok);
Assert.AreSame(block.TransferCmd, blockEnumerator.Current);
ok = blockEnumerator.MoveNext();
Assert.IsFalse(ok);
}
public void EnumeratorMovePastEnd()
{
p = LoadProgramFrom("programs/GotoMultiplePaths.bpl");
var block = GetMain(p).Blocks[0];
var blockEnumerator = new BlockCmdEnumerator(block);
Assert.AreEqual(2, blockEnumerator.Count);
bool ok = false;
for (int i = 0; i < 2; ++i)
{
ok = blockEnumerator.MoveNext();
Assert.IsTrue(ok);
}
ok = blockEnumerator.MoveNext();
Assert.IsFalse(ok);
// Should throw InvalidOperation
var x = blockEnumerator.Current;
}
public void EnumeratorMultipleCmds()
{
p = LoadProgramFrom("programs/Concretise.bpl");
var block = GetMain(p).Blocks[0];
var blockEnumerator = new BlockCmdEnumerator(block);
Assert.AreEqual(5, blockEnumerator.Count);
blockEnumerator.MoveNext();
Assert.AreEqual("assert {:symbooglix_bp \"entry\"} true;", TrimNewLines(blockEnumerator.Current.ToString()));
blockEnumerator.MoveNext();
Assert.AreEqual("a := 1bv8;", TrimNewLines(blockEnumerator.Current.ToString()));
blockEnumerator.MoveNext();
Assert.AreEqual("x := 2bv8;", TrimNewLines(blockEnumerator.Current.ToString()));
blockEnumerator.MoveNext();
Assert.AreEqual("assert {:symbooglix_bp \"now_concrete\"} true;", TrimNewLines(blockEnumerator.Current.ToString()));
blockEnumerator.MoveNext();
Assert.AreEqual("return;", TrimNewLines(blockEnumerator.Current.ToString()));
}