/// <summary>
/// Adds a constraint instance for the given key.
/// </summary>
/// <param name="key">The key.</param>
/// <param name="value">
/// The constraint instance. Must either be a string or an instance of <see cref="IDispatcherValueConstraint"/>.
/// </param>
/// <remarks>
/// If the <paramref name="value"/> is a string, it will be converted to a <see cref="RegexDispatcherValueConstraint"/>.
///
/// For example, the string <code>Product[0-9]+</code> will be converted to the regular expression
/// <code>^(Product[0-9]+)</code>. See <see cref="System.Text.RegularExpressions.Regex"/> for more details.
/// </remarks>
public void AddConstraint(string key, object value)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
var constraint = value as IDispatcherValueConstraint;
if (constraint == null)
{
var regexPattern = value as string;
if (regexPattern == null)
{
throw new InvalidOperationException(
Resources.FormatDispatcherValueConstraintBuilder_ValidationMustBeStringOrCustomConstraint(
key,
value,
_rawText,
typeof(IDispatcherValueConstraint)));
}
var constraintsRegEx = "^(" + regexPattern + ")$";
constraint = new RegexDispatcherValueConstraint(constraintsRegEx);
}
Add(key, constraint);
}
public void RegexConstraintFailsIfKeyIsNotFoundInRouteValues()
{
// Arrange
var constraint = new RegexDispatcherValueConstraint(new Regex("^abc$"));
var values = new DispatcherValueCollection(new { action = "abc" });
// Act
var match = TestConstraint(constraint, values, "controller");
// Assert
Assert.False(match);
}
public void RegexConstraintConstructedWithRegex_SimpleFailedMatch()
{
// Arrange
var constraint = new RegexDispatcherValueConstraint(new Regex("^abc$"));
var values = new DispatcherValueCollection(new { controller = "Abc" });
// Act
var match = TestConstraint(constraint, values, "controller");
// Assert
Assert.False(match);
}
public void RegexConstraint_TakesRegexAsInput_SimpleMatch()
{
// Arrange
var constraint = new RegexDispatcherValueConstraint(new Regex("^abc$"));
var values = new DispatcherValueCollection(new { controller = "abc" });
// Act
var match = TestConstraint(constraint, values, "controller");
// Assert
Assert.True(match);
}
[InlineData(@"*****@*****.**", @"^\w+[\w\.]*\@\w+((-\w+)|(\w*))\.[a-z]{2,3}$", true)] // email
public void RegexConstraintBuildRegexVerbatimFromInput(
string routeValue,
string constraintValue,
bool shouldMatch)
{
// Arrange
var constraint = new RegexDispatcherValueConstraint(constraintValue);
var values = new DispatcherValueCollection(new { controller = routeValue });
// Act
var match = TestConstraint(constraint, values, "controller");
// Assert
Assert.Equal(shouldMatch, match);
}
public void RegexConstraintIsCultureInsensitiveWhenConstructedWithString(string culture)
{
if (TestPlatformHelper.IsMono)
{
// The Regex in Mono returns true when matching the Turkish I for the a-z range which causes the test
// to fail. Tracked via #100.
return;
}
// Arrange
var constraint = new RegexDispatcherValueConstraint("^([a-z]+)$");
var values = new DispatcherValueCollection(new { controller = "\u0130" }); // Turkish upper-case dotted I
using (new CultureReplacer(culture))
{
// Act
var match = TestConstraint(constraint, values, "controller");
// Assert
Assert.False(match);
}
}