private static string BuildTagExpression(SupportedTagAttribute supportedTag)
{
// HTML tag names are case folded to lower case
var queryTagName = supportedTag.TagName.ToLowerInvariant();
if (supportedTag.HasAttributeFilter)
{
const string AttributeFilterQuery = "*[local-name() = '{0}' and {1}='{2}']";
// HTML attribute names are case folded to lower case
// Searching by the SupportedTagAttribute attribute value must be case insensitive
var attributeName = supportedTag.AttributeName.ToLowerInvariant();
var queryAttributeName = QueryFactory.CaseQuery("@" + attributeName, true);
// This literal value can be converted to lower case here rather than within the execution of the XPath query
var queryAttributeValue = supportedTag.AttributeValue.ToLowerInvariant();
return(string.Format(
CultureInfo.CurrentCulture,
AttributeFilterQuery,
queryTagName,
queryAttributeName,
queryAttributeValue));
}
return("*[local-name() = '" + queryTagName + "']");
}
public void ToStringReturnsTagRepresentationWithAttributeTest()
{
var target = new SupportedTagAttribute("test", "name", "Value");
var actual = target.ToString();
actual.Should().Be("<test name=\"Value\" />");
}
public void ToStringReturnsTagRepresentationTest()
{
var target = new SupportedTagAttribute("test");
var actual = target.ToString();
actual.Should().Be("<test />");
}
public void EqualsReturnsFalseWhenSecondIsNullTest()
{
var tag = new SupportedTagAttribute(Guid.NewGuid().ToString());
var target = new SupportedTagAttributeComparer();
var actual = target.Equals(tag, null);
actual.Should().BeFalse();
}
public void EqualsReturnsFalseWhenAttributeFilterDoesNotMatchTest()
{
var first = new SupportedTagAttribute(Guid.NewGuid().ToString());
var second = new SupportedTagAttribute(first.TagName, Guid.NewGuid().ToString(), Guid.NewGuid().ToString());
var target = new SupportedTagAttributeComparer();
var actual = target.Equals(first, second);
actual.Should().BeFalse();
}
public void EqualsReturnsTrueWhenTagsMatchWithoutAttributesTest()
{
var first = new SupportedTagAttribute(Guid.NewGuid().ToString());
var second = new SupportedTagAttribute(first.TagName);
var target = new SupportedTagAttributeComparer();
var actual = target.Equals(first, second);
actual.Should().BeTrue();
}
public void HasAttributeFilterReturnsFalseIfAttributeValueIsWhiteSpaceTest()
{
var tagValue = Guid.NewGuid().ToString();
var attributeName = Guid.NewGuid().ToString();
var target = new SupportedTagAttribute(tagValue, attributeName, " ");
var actual = target.HasAttributeFilter;
actual.Should().BeFalse();
}
public void HasAttributeFilterReturnsFalseIfAttributeNameIsEmptyTest()
{
var tagName = Guid.NewGuid().ToString();
var attributeValue = Guid.NewGuid().ToString();
var target = new SupportedTagAttribute(tagName, string.Empty, attributeValue);
var actual = target.HasAttributeFilter;
actual.Should().BeFalse();
}
public void GetHashCodeReturnsSameValueForMatchingTagTest()
{
var first = new SupportedTagAttribute(Guid.NewGuid().ToString());
var second = new SupportedTagAttribute(first.TagName);
var target = new SupportedTagAttributeComparer();
var firstCode = target.GetHashCode(first);
var secondCode = target.GetHashCode(second);
firstCode.Should().Be(secondCode);
}
public void GetHashCodeReturnsDifferentValueForMismatchedTagTest()
{
var first = new SupportedTagAttribute(Guid.NewGuid().ToString());
var second = new SupportedTagAttribute(Guid.NewGuid().ToString());
var target = new SupportedTagAttributeComparer();
var firstCode = target.GetHashCode(first);
var secondCode = target.GetHashCode(second);
firstCode.Should().NotBe(secondCode);
}
public void ReturnsConstructorValuesTest()
{
var tagName = Guid.NewGuid().ToString();
var attributeName = Guid.NewGuid().ToString();
var attributeValue = Guid.NewGuid().ToString();
var target = new SupportedTagAttribute(tagName, attributeName, attributeValue);
target.TagName.Should().Be(tagName);
target.AttributeName.Should().Be(attributeName);
target.AttributeValue.Should().Be(attributeValue);
}
public void HasAttributeFilterReturnsTrueIfAttributeIsDefinedTest()
{
var tagName = Guid.NewGuid().ToString();
var attributeName = Guid.NewGuid().ToString();
var attributeValue = Guid.NewGuid().ToString();
var target = new SupportedTagAttribute(tagName, attributeName, attributeValue);
var actual = target.HasAttributeFilter;
actual.Should().BeTrue();
}
