public void DoubleSubstringWithEnumerable()
{
const string String1 = "hello1";
const string String2 = "hello";
int count = 0;
IEnumerable <string> GetList()
{
yield return(String1);
yield return(String2);
count++;
}
var compacted = Compactor.Compact(GetList());
Assert.Equal(1, count);
Assert.Equal(2, compacted.Count);
Assert.Same(String1, compacted[0].Buffer);
Assert.Equal(new StringSegment(String1), compacted[0]);
Assert.Same(String1, compacted[1].Buffer);
Assert.Equal(new StringSegment(String1, 0, String2.Length), compacted[1]);
}
public void SingleItem()
{
const string Str = "hello";
var compacted = Compactor.Compact(new[] { Str });
var single = Assert.Single(compacted);
Assert.Same(Str, single.Buffer);
Assert.Equal(new StringSegment(Str), single);
}
public void DoubleSubstringWithCustomCollection()
{
const string String1 = "hello1";
const string String2 = "hello";
var compacted = Compactor.Compact(new OnlyCollection <string>(new[] { String1, String2 }));
Assert.Equal(2, compacted.Count);
Assert.Same(String1, compacted[0].Buffer);
Assert.Equal(new StringSegment(String1), compacted[0]);
Assert.Same(String1, compacted[1].Buffer);
Assert.Equal(new StringSegment(String1, 0, String2.Length), compacted[1]);
}
public void DoubleUnique()
{
const string String1 = "hello";
const string String2 = "world";
var compacted = Compactor.Compact(new[] { String1, String2 });
Assert.Equal(2, compacted.Count);
Assert.Same(String1, compacted[0].Buffer);
Assert.Equal(new StringSegment(String1), compacted[0]);
Assert.Same(String2, compacted[1].Buffer);
Assert.Equal(new StringSegment(String2), compacted[1]);
}
public void DoubleDifferentCase()
{
const string String1 = "hello";
const string String2 = "Hello";
var compacted = Compactor.Compact(new[] { String1, String2 }, StringComparison.OrdinalIgnoreCase);
Assert.Equal(2, compacted.Count);
Assert.Same(String1, compacted[0].Buffer);
Assert.Equal(new StringSegment(String1), compacted[0]);
Assert.Same(String1, compacted[1].Buffer);
Assert.Equal(new StringSegment(String1), compacted[1]);
}
public void TripleSubstringWithNull()
{
const string String1 = "hello1";
const string String2 = "hello";
var compacted = Compactor.Compact(new[] { String1, String2, null });
Assert.Equal(3, compacted.Count);
Assert.Same(String1, compacted[0].Buffer);
Assert.Equal(new StringSegment(String1), compacted[0]);
Assert.Same(String1, compacted[1].Buffer);
Assert.Equal(new StringSegment(String1, 0, String2.Length), compacted[1]);
Assert.Null(compacted[2].Buffer);
Assert.Null(compacted[2].ToString());
Assert.Equal(StringSegment.Empty, compacted[2]);
}
public void ReturnsEmpty()
{
Assert.Same(Array.Empty <StringSegment>(), Compactor.Compact(Array.Empty <string>()));
}
public void NullInput()
{
Assert.Throws <ArgumentNullException>(() => Compactor.Compact(null));
}