namespace FlexArray.Test;

public class FlexArrayStringTests
{
    [Fact]
    public void Construction_NoSize()
    {
        var array = new FlexArrayString();

        array.Should().NotBeNull();
        array.Count.Should().Be(0, "no items added yet");
        array.Capacity.Should().Be(FlexArrayString.DefaultStartSize, "default capacity");
    }
    
    [Theory]
    [InlineData(0)]
    [InlineData(4)]
    [InlineData(20)]
    [InlineData(100_000)]
    public void Construction_WithSize(int size)
    {
        var array = new FlexArrayString(size);

        array.Should().NotBeNull();
        array.Count.Should().Be(0, "no items added yet");
        array.Capacity.Should().Be(size, "initial capacity set to specified size");
    }

    [Fact]
    public void Construction_WithInvalidSize()
    {
        var array = new FlexArrayString(-5);

        array.Should().NotBeNull();
        array.Count.Should().Be(0);
        array.Capacity.Should().Be(0, "negative size provided => set to 0");
    }
}