public static void AdditionOp_GivenTwoCollectionsWithSecondCollectionNull_ThrowsArgNullException()
{
FabulousTextCollection collectionA = "abc";
FabulousTextCollection collectionB = null;
Assert.Throws <ArgumentNullException>(() => _ = collectionA + collectionB);
}
public static void AdditionOp_GivenTextThenCollectionWithNullText_ThrowsArgNullException()
{
FabulousTextCollection collection = "abc";
FabulousText text = null;
Assert.Throws <ArgumentNullException>(() => _ = text + collection);
}
public static void AdditionOp_GivenCollectionThenTextWithNullCollection_ThrowsArgNullException()
{
FabulousTextCollection collection = null;
FabulousText text = "abc";
Assert.Throws <ArgumentNullException>(() => _ = collection + text);
}
public static void ImplicitOp_GivenFabulousText_CreatesViaCtor()
{
FabulousText text = "abc";
FabulousTextCollection collection = text;
var collectionText = collection.Fragments.Single();
Assert.AreEqual(text.Text, collectionText.Text);
}
public static void Fragments_PropertyGet_ReturnsFragments()
{
FabulousText abc = "abc";
FabulousText def = "def";
var fragments = new[] { abc, def };
var collection = new FabulousTextCollection(fragments);
Assert.AreSame(fragments, collection.Fragments);
}
public static void AdditionOp_GivenTwoCollections_AddsInCorrectOrder()
{
FabulousTextCollection abc = "abc";
FabulousTextCollection def = "def";
var combined = abc + def;
var combinedText = string.Concat(combined.Fragments.Select(t => t.Text));
var expected = abc.Fragments.Single().Text + def.Fragments.Single().Text;
Assert.IsTrue(expected == combinedText);
}
public static void ImplicitOp_GivenString_CreatesViaCtor()
{
const string abc = "abc";
FabulousText text = abc;
FabulousTextCollection collection = abc;
var collectionText = collection.Fragments.Single();
Assert.AreEqual(text.Text, collectionText.Text);
}
public static void AdditionOp_GivenTextThenCollection_AddsInCorrectOrder()
{
FabulousText abc = "abc";
FabulousText def = "def";
var collection = new FabulousTextCollection(abc, def);
FabulousText ghi = "ghi";
var combined = collection + ghi;
var combinedText = string.Concat(combined.Fragments.Select(t => t.Text));
var expected = abc.Text + def.Text + ghi.Text;
Assert.IsTrue(expected == combinedText);
}
