public void Insert_past_end()
{
var sut = new LineEditor("ab", 5);
var index = sut.Insert(10, "c", null);
Assert.AreEqual(3, index);
Assert.AreEqual("abc", sut.Line);
}
public void Insertion_with_linebreaks()
{
var sut = new LineEditor("ab cd efg", 5);
var result = "";
var index = sut.Insert(5, "x\ny\nz",
excessText => result = excessText);
Assert.AreEqual(6, index);
Assert.AreEqual("ab cdx", sut.Line);
Assert.AreEqual("y\nz efg", result);
index = sut.Insert(1, "\n",
excessText => result = excessText);
Assert.AreEqual(1, index);
Assert.AreEqual("a", sut.Line);
Assert.AreEqual("b cdx", result);
}
public void Insertions()
{
var sut = new LineEditor(5);
var index = sut.Insert(0, "a", null);
Assert.AreEqual(1, index);
Assert.AreEqual("a", sut.Line);
Assert.AreEqual(new[] { "a" }, sut.SoftLines);
sut.Insert(1, "b", null);
sut.Insert(2, " ", null);
index = sut.Insert(3, "cd", null);
Assert.AreEqual(5, index);
Assert.AreEqual("ab cd", sut.Line);
Assert.AreEqual(new[] { "ab cd" }, sut.SoftLines);
sut.Insert(5, " ", null);
Assert.AreEqual("ab cd ", sut.Line);
Assert.AreEqual(new[] { "ab cd " }, sut.SoftLines);
index = sut.Insert(6, "e", null);
Assert.AreEqual(7, index);
Assert.AreEqual("ab cd e", sut.Line);
Assert.AreEqual(new[] { "ab cd ", "e" }, sut.SoftLines);
}