public void InsertBetweenExistingPositions()
{
JSBuilder builder = new JSBuilder();
builder.Text("ab");
BuilderPosition p1 = builder.CreatePosition();
builder.Text("cd");
BuilderPosition p2 = builder.CreatePosition();
builder.Text("ef");
Assert.AreEqual(2, p1.CharactersAfterPreviousPosition);
Assert.AreEqual(2, p1.GetIndexInBuilder());
Assert.AreEqual(2, p2.CharactersAfterPreviousPosition);
Assert.AreEqual(4, p2.GetIndexInBuilder());
builder.Insert(3, "Z");
Assert.AreEqual("abcZdef", builder.ToString());
Assert.AreEqual(2, p1.CharactersAfterPreviousPosition);
Assert.AreEqual(2, p1.GetIndexInBuilder());
Assert.AreEqual(3, p2.CharactersAfterPreviousPosition);
Assert.AreEqual(5, p2.GetIndexInBuilder());
}
public void CreatePositionWithEmptyBuilder()
{
JSBuilder builder = new JSBuilder();
BuilderPosition p = builder.CreatePosition();
Assert.AreEqual(0, p.CharactersAfterPreviousPosition);
Assert.AreEqual(0, p.GetIndexInBuilder());
Assert.AreSame(p, builder.CreatePosition());
}
public void CreatePositionWhenAnotherPositionAlreadyExists()
{
JSBuilder builder = new JSBuilder();
BuilderPosition p1 = builder.CreatePosition();
builder.Text("abcd");
BuilderPosition p2 = builder.CreatePosition();
Assert.AreEqual(0, p1.CharactersAfterPreviousPosition);
Assert.AreEqual(0, p1.GetIndexInBuilder());
Assert.AreEqual(4, p2.CharactersAfterPreviousPosition);
Assert.AreEqual(4, p2.GetIndexInBuilder());
}
public void InsertAtAnExistingPosition()
{
JSBuilder builder = new JSBuilder();
BuilderPosition p = builder.CreatePosition();
builder.Insert(0, "abcd");
Assert.AreEqual("abcd", builder.ToString());
Assert.AreEqual(4, p.CharactersAfterPreviousPosition);
Assert.AreEqual(4, p.GetIndexInBuilder());
}
public void InsertAfterAnExistingPosition()
{
JSBuilder builder = new JSBuilder();
builder.Text("abc");
BuilderPosition p = builder.CreatePosition();
builder.Text("df");
Assert.AreEqual(3, p.CharactersAfterPreviousPosition);
Assert.AreEqual(3, p.GetIndexInBuilder());
builder.Insert(4, "e");
Assert.AreEqual(3, p.CharactersAfterPreviousPosition);
Assert.AreEqual(3, p.GetIndexInBuilder());
}
protected BuilderPosition CreatePosition()
{
return(builder.CreatePosition());
}
