public void ValidationsCanBeRemoved()
{
// Arrange
var vm = new TestValidation();
vm.ValidateWrapper(() => vm.Name).Check(name => name != "test").Message("test");
// Act
vm.Name = "test";
string before = vm.GetErrors(nameof(vm.Name)).Cast <string>().First();
vm.ClearValidationRules();
vm.Name = "123";
vm.Name = "test";
string after = vm.GetErrors(nameof(vm.Name)).Cast <string>().FirstOrDefault();
// Assert
Assert.AreEqual("test", before);
Assert.IsNull(after);
}
public void ValidPropertyValueIsValidated()
{
// Arrange
var vm = new TestValidation();
// Act
vm.ValidateWrapper(() => vm.Name).Check(name => true).Message("must not be visible");
vm.Name = "test";
// Assert
Assert.IsFalse(vm.GetErrors(nameof(vm.Name)).Cast <string>().Any());
}
public void PropertyWithoutValidationIsNotValidated()
{
// Arrange
var vm = new TestValidation
{
// Act
Name = "test"
};
// Assert
Assert.IsFalse(vm.GetErrors(nameof(vm.Name)).Cast <string>().Any());
}
public void ValidationMessageIsCorrectlySet()
{
// Arrange
var vm = new TestValidation();
// Act
vm.ValidateWrapper(() => vm.Name).Check(name => false).Message("test message");
vm.Name = "test";
// Assert
Assert.AreEqual("test message", vm.GetErrors(nameof(vm.Name)).Cast <string>().First());
}
public void ExceptionInValidationActionIsSwallowed()
{
// Arrange
var vm = new TestValidation();
// Act
vm.ValidateWrapper(() => vm.Name).Check(name => { throw new Exception("test error"); }).Message("test message");
vm.Name = "test";
// Assert
Assert.AreEqual("test error", vm.GetErrors(nameof(vm.Name)).Cast <string>().First());
}
public void UnchangedPropertyIsNotValidated()
{
// Arrange
var vm = new TestValidation();
// Act
vm.ValidateWrapper(() => vm.Name).Check(name => { throw new Exception("must not be called"); }).Message("must not be visible");
// Assert
var errors = vm.GetErrors(nameof(vm.Name));
Assert.IsFalse(errors.Cast <string>().Any());
}
public void ExceptionInValidationActionIsSwallowed()
{
// Arrange
var vm = new TestValidation();
// Act
vm.ValidateWrapper( nameof( vm.Name ) ).Check( () => { throw new Exception( "test error" ); } ).Message( "test message" );
vm.Name = "test";
// Assert
Assert.AreEqual( "test error", vm.GetErrors( nameof( vm.Name ) ).First() );
}
public void ValidPropertyValueIsValidated()
{
// Arrange
var vm = new TestValidation();
// Act
vm.ValidateWrapper( nameof( vm.Name ) ).Check( () => true ).Message( "must not be visible" );
vm.Name = "test";
// Assert
Assert.IsFalse( vm.GetErrors( nameof( vm.Name ) ).Any() );
}
public void ValidationsCanBeRemoved()
{
// Arrange
var vm = new TestValidation();
vm.ValidateWrapper( nameof( vm.Name ) ).Check( () => vm.Name != "test" ).Message( "test" );
// Act
vm.Name = "test";
string before = (string)vm.GetErrors( nameof( vm.Name ) ).First();
vm.ClearValidationRules();
vm.Name = "123";
vm.Name = "test";
string after = (string)vm.GetErrors( nameof( vm.Name ) ).FirstOrNull();
// Assert
Assert.AreEqual( "test", before );
Assert.IsNull( after );
}
public void ValidationMessageIsCorrectlySet()
{
// Arrange
var vm = new TestValidation();
// Act
vm.ValidateWrapper( nameof( vm.Name ) ).Check( () => false ).Message( "test message" );
vm.Name = "test";
// Assert
Assert.AreEqual( "test message", vm.GetErrors( nameof( vm.Name ) ).First() );
}
public void UnchangedPropertyIsNotValidated()
{
// Arrange
var vm = new TestValidation();
// Act
vm.ValidateWrapper( nameof( vm.Name ) ).Check( () => { throw new Exception( "must not be called" ); } ).Message( "must not be visible" );
// Assert
var errors = vm.GetErrors( nameof( vm.Name ) );
Assert.IsFalse( errors.Any() );
}
public void PropertyWithoutValidationIsNotValidated()
{
// Arrange
var vm = new TestValidation
{
// Act
Name = "test"
};
// Assert
Assert.IsFalse( vm.GetErrors( nameof( vm.Name ) ).Any() );
}