public void WhenFontFamilyIsWrong_ThenNextSmallerFontThrowsArgumentException()
{
using (var font = new Font(FontFamily.GenericSerif, 10f, FontStyle.Regular))
{
Assert.Throws <ArgumentException>(
() => TerminalFont.NextSmallerFont(font));
}
}
public void WhenFontFamilyIsOk_ThenNextSmallerFontThrowsArgumentException()
{
using (var font = new Font(TerminalFont.FontFamily, 10f, FontStyle.Regular))
{
using (var smallerFont = TerminalFont.NextSmallerFont(font))
{
Assert.AreEqual(smallerFont.Size, font.Size - 1);
}
}
}
public void NextSmallerFontReturnsSmallerFont()
{
using (var font = new TerminalFont(TerminalFont.DefaultFontFamily, 10f))
{
using (var smallerFont = font.NextSmallerFont())
{
Assert.AreEqual(font.Font.Size - 1, smallerFont.Font.Size);
}
}
}
public void WhenMinSizeReached_NextSmallerFontKeepsSize()
{
var font = new TerminalFont(TerminalFont.DefaultFontFamily, 10f);
for (int i = 0; i < 10; i++)
{
font = font.NextSmallerFont();
}
Assert.AreEqual(TerminalFont.MinimumSize, font.Font.Size);
}