System.Text.Tests.StringBuilderTests.EnsureCapacity C# (CSharp) Метод

        public static void EnsureCapacity()
        {
            var builder = new StringBuilder(40);

            builder.EnsureCapacity(20);
            Assert.True(builder.Capacity >= 20);

            builder.EnsureCapacity(20000);
            Assert.True(builder.Capacity >= 20000);

            // Ensuring a capacity less than the current capacity does not change anything
            int oldCapacity = builder.Capacity;
            builder.EnsureCapacity(10);
            Assert.Equal(oldCapacity, builder.Capacity);
        }