public Gradient Construct()
{
var parsed = new CssGradientParser().ParseCss(StyleSheet);
if (parsed.Length != 1)
{
throw new InvalidOperationException("StyleSheet must contain single gradient function.");
}
return(parsed.First());
}
public void ParseCss_SimpleGradients_CorrectlyParsed(string css, LinearGradient expected)
{
// Arrange
var parser = new CssGradientParser();
// Act
var gradients = parser.ParseCss(css);
// Assert
gradients.Should().HaveCount(1);
gradients[0].Should().BeEquivalentTo(expected);
}
public void ParseCss_EmptyCss_EmptyGradientArrayReturned(string css)
{
// Arrange
var parser = new CssGradientParser();
// Act
var gradients = parser.ParseCss(css);
// Assert
gradients.Should().NotBeNull();
gradients.Should().HaveCount(0);
}
public void ParseCss_GradientsWithoutOffsets_AutomaticallyAssignedOffsets(string css, LinearGradient expected)
{
// Arrange
var parser = new CssGradientParser();
// Act
var gradients = parser.ParseCss(css);
// Assert
gradients.Should().HaveCount(1);
gradients[0].Should().BeEquivalentTo(expected);
}
public void ParseCss_GradientsWithoutOffsets_AutomaticallyAssignedOffsets(string css, LinearGradient expected)
{
// Arrange
var parser = new CssGradientParser();
// Act
var gradients = parser.ParseCss(css);
gradients.ForEach(x => x.Measure(0, 0));
// Assert
gradients.Should().HaveCount(1);
gradients[0].Should().BeEquivalentTo(expected, options => options.IgnoringCyclicReferences());
}
public void ParseCss_SimpleGradients_CorrectlyParsed(string css, LinearGradient expected)
{
// Arrange
var parser = new CssGradientParser();
// Act
var gradients = parser.ParseCss(css);
// Assert
using (new AssertionScope())
{
gradients.Should().HaveCount(1);
gradients[0].Should().BeEquivalentTo(expected, options => options.IgnoringCyclicReferences());
}
}
public void ParseCss_ComplexGradientsCss_EachGradientHaveCorrectAngleAndStopsCount()
{
// Arrange
var css = CssGradientParserTestData.ComplexGradientsCss;
var expectedGradients = CssGradientParserTestData.ComplexGradientsExpected;
var parser = new CssGradientParser();
// Act
var gradients = parser.ParseCss(css);
// Assert
gradients.Should().HaveCount(expectedGradients.Length);
for (var i = 0; i < gradients.Length; i++)
{
gradients[i].Stops.Should().HaveCount(expectedGradients[i].Stops.Count);
}
}
public void ParseCss_ComplexGradientsCss_EachGradientHaveCorrectAngleAndStopsCount(string css, Gradient[] expectedGradients)
{
// Arrange
var parser = new CssGradientParser();
// Act
var gradients = parser.ParseCss(css);
// Assert
using (new AssertionScope())
{
gradients.Should().HaveCount(expectedGradients.Length);
for (var i = 0; i < gradients.Length; i++)
{
gradients[i].Stops.Should().HaveCount(expectedGradients[i].Stops.Count);
}
}
}
