public void ShouldReturnEmptyCollectionForEmptyString()
{
// Arrange
var sut = new StringMeasurer();
// Act
var actual = sut.Measure(string.Empty, Font);
// Assert
Assert.Empty(actual.Rectangles);
}
public void ShouldReturnMeasurementWithCorrectWord()
{
// Arrange
var sut = new StringMeasurer();
const string expected = "testword";
// Act
var actual = sut.Measure(expected, Font);
// Assert
Assert.Equal(expected, actual.Word);
}
public void ShouldProduceRectangleBiggerThanRectSpacing()
{
// Arrange
var sut = new StringMeasurer();
// Act
var actual = sut.Measure(".", Font);
// Assert
Assert.True(actual.Rectangles.First().Width > 2 * StringMeasurer.RectSpacing);
Assert.True(actual.Rectangles.First().Height > 2 * StringMeasurer.RectSpacing);
}
public void ShouldContainOneRectanglePerChar()
{
// Arrange
var sut = new StringMeasurer();
const string word = "testword";
// Act
var actual = sut.Measure(word, Font);
// Assert
Assert.Equal(word.Length, actual.Rectangles.Count);
}
public void ShouldProduceRectanglesWithSameSize()
{
// Arrange
var sut = new StringMeasurer();
// Act
var result = sut.Measure("xX", Font);
// Assert
var distinctSizes = result.Rectangles.Select(r => Tuple.Create(r.Width, r.Height)).Distinct().ToList();
Assert.Single(distinctSizes);
}
public void ShouldHaveOffsetThatAlignsRectToZero()
{
// Arrange
var sut = new StringMeasurer();
// Act
var actual = sut.Measure("test", Font);
// Assert
var offset = actual.Offset;
var rect = actual.Rectangles.First();
Assert.Equal(0, offset.X + rect.X, 4);
Assert.Equal(0, offset.Y + rect.Y, 4);
}