public void FixedStringBuilder_TryExpand_Can_Always_Expand_Capacity() { FixedStringBuilder target = new FixedStringBuilder(1); Assert.IsTrue(target.TryAppend('X', 0)); Assert.IsTrue(target.TryExpand(2)); Assert.IsTrue(target.TryAppend('X', 0)); Assert.AreEqual("XX", target.ToString()); }
public void FixedStringBuilder_TryExpand_Does_Nothing_If_Capacity_Is_Already_Larger() { FixedStringBuilder target = new FixedStringBuilder(3); Assert.IsTrue(target.TryAppend('X', 0)); Assert.IsFalse(target.TryExpand(2)); Assert.IsTrue(target.TryAppend('X', 0)); Assert.IsTrue(target.TryAppend('X', 0)); Assert.AreEqual("XXX", target.ToString()); }
public void FixedStringBuilder_TryExpand_Rejects_Negative_Capacity() { FixedStringBuilder target = new FixedStringBuilder(0); try { target.TryExpand(-1); Assert.Fail(); } catch (ArgumentOutOfRangeException ex) { Assert.AreEqual(typeof(ArgumentOutOfRangeException), ex.GetType()); } }