public void CheckRRSubtreeStreamBehaviourWhileEmpty1()
{
string description = "RewriteRuleSubtreeStream test";
RewriteRuleSubtreeStream subtreeTest =
new RewriteRuleSubtreeStream(CreateTreeAdaptor(), description);
Assert.IsFalse(subtreeTest.HasNext(), "HasNext() has to give back false here.");
Assert.AreEqual(description.ToString(), subtreeTest.Description,
"Description strings should be equal.");
Assert.AreEqual(0, subtreeTest.Size(), "The number of elements should be zero.");
subtreeTest.Reset();
Assert.IsTrue(true, "Reset() shouldn't make any problems here.");
Assert.AreEqual(0, subtreeTest.Size(),
"The number of elements should be still zero.");
subtreeTest.NextNode();
}
public void CheckRRSubtreeStreamBehaviourWithElements()
{
RewriteRuleSubtreeStream subtreeTest =
new RewriteRuleSubtreeStream(CreateTreeAdaptor(),
"RewriteRuleSubtreeStream test");
IToken token1 = CreateToken(1, "test token without any real context");
ITree tree1 = CreateTree(token1);
// Test Add()
subtreeTest.Add(tree1);
Assert.AreEqual(1, subtreeTest.Size(), "subtreeTest should have the size 1 (1).");
Assert.IsTrue(subtreeTest.HasNext(), "HasNext() should be true here (1).");
// Test NextNode()
Assert.AreEqual(tree1, (ITree)subtreeTest.NextNode(),
"The returned tree should be equal to the given tree (1).");
Assert.AreEqual(1, subtreeTest.Size(), "subtreeTest should have the size 1 (2).");
Assert.IsFalse(subtreeTest.HasNext(), "HasNext() should be false here (1).");
subtreeTest.Reset();
Assert.AreEqual(1, subtreeTest.Size(), "subtreeTest should have the size 1 (3).");
Assert.IsTrue(subtreeTest.HasNext(), "HasNext() should be true here (2).");
// Test NextTree()
CommonTree returnedTree = (CommonTree)subtreeTest.NextTree();
Assert.AreEqual(token1, returnedTree.Token,
"The returned token should be equal to the given token (3).");
Assert.AreEqual(1, subtreeTest.Size(), "subtreeTest should have the size 1 (4).");
Assert.IsFalse(subtreeTest.HasNext(), "HasNext() should be false here (2).");
subtreeTest.Reset();
Assert.AreEqual(1, subtreeTest.Size(), "subtreeTest should have the size 1 (5).");
Assert.IsTrue(subtreeTest.HasNext(), "HasNext() should be true here (3).");
// Test, what happens with two elements
IToken token2 = CreateToken(2, "test token without any real context");
ITree tree2 = CreateTree(token2);
subtreeTest.Add(tree2);
Assert.AreEqual(2, subtreeTest.Size(), "subtreeTest should have the size 2 (1).");
Assert.IsTrue(subtreeTest.HasNext(), "HasNext() should be true here (4).");
returnedTree = (CommonTree)subtreeTest.NextTree();
Assert.AreEqual(token1, returnedTree.Token,
"The returned token should be equal to the given token (4).");
Assert.AreEqual(2, subtreeTest.Size(), "subtreeTest should have the size 2 (2).");
Assert.IsTrue(subtreeTest.HasNext(), "HasNext() should be true here (5).");
returnedTree = (CommonTree)subtreeTest.NextTree();
Assert.AreEqual(token2, returnedTree.Token,
"The returned token should be equal to the given token (5).");
Assert.IsFalse(subtreeTest.HasNext(), "HasNext() should be false here (3).");
// Test exception
subtreeTest.NextTree();
}