public void GetProperties_IncorrectAttributeValuePropertyName_ThrowsArgumentException()
{
// Setup
var attribute = new KeyValueElementAttribute(nameof(TestObject.Name), "IDoNotExist");
var attributes = new AttributeCollection(attribute);
var mocks = new MockRepository();
var context = mocks.Stub <ITypeDescriptorContext>();
var descriptor = mocks.Stub <PropertyDescriptor>("name", new Attribute[0]);
descriptor.Stub(d => d.Attributes).Return(attributes);
context.Stub(c => c.PropertyDescriptor).Return(descriptor);
mocks.ReplayAll();
const int elementCount = 12;
TestObject[] array = Enumerable.Repeat(new TestObject
{
Name = "some name"
}, elementCount).ToArray();
var converter = new KeyValueExpandableArrayConverter();
// Call
TestDelegate test = () => converter.GetProperties(context, array);
// Assert
Assert.Throws <ArgumentException>(test);
}
public void GetProperties_FromArray_SettingValuesShouldThrowNotSupportedException()
{
// Setup
var attribute = new KeyValueElementAttribute(nameof(TestObject.Name), nameof(TestObject.Value));
var attributes = new AttributeCollection(attribute);
var mocks = new MockRepository();
var context = mocks.Stub <ITypeDescriptorContext>();
var descriptor = mocks.Stub <PropertyDescriptor>("name", new Attribute[0]);
descriptor.Stub(d => d.Attributes).Return(attributes);
context.Stub(c => c.PropertyDescriptor).Return(descriptor);
mocks.ReplayAll();
const int elementCount = 12;
TestObject[] array = Enumerable.Repeat(new TestObject
{
Name = "some name"
}, elementCount).ToArray();
var converter = new KeyValueExpandableArrayConverter();
// Call
PropertyDescriptorCollection propertyDescriptors = converter.GetProperties(context, array);
// Assert
for (var i = 0; i < elementCount; i++)
{
Assert.Throws <NotSupportedException>(() => propertyDescriptors[i].SetValue(array, i));
}
mocks.VerifyAll();
}
public void Constructor_WithParameters_CreatesNewInstance()
{
// Call
var attribute = new KeyValueElementAttribute("name", "value");
// Assert
Assert.IsInstanceOf <Attribute>(attribute);
}
public void GetValue_WithObjectWithoutPropertyWithName_ThrowsArgumentException()
{
// Setup
var attribute = new KeyValueElementAttribute(nameof(TestObject.Name), "IDoNotExist");
// Call
TestDelegate test = () => attribute.GetValue(new TestObject());
// Assert
const string expectedMessage = "Value property 'IDoNotExist' was not found on type TestObject.";
TestHelper.AssertThrowsArgumentExceptionAndTestMessage <ArgumentException>(test, expectedMessage);
}
public void GetName_WithObjectWithNonStringProperty_ReturnsValueOfProperty()
{
// Setup
int expectedName = new Random(21).Next(3, 50);
var attribute = new KeyValueElementAttribute(nameof(TestObject.NonStringName), nameof(TestObject.NonStringValue));
// Call
string name = attribute.GetName(new TestObject
{
NonStringName = expectedName
});
// Assert
Assert.AreEqual(Convert.ToString(expectedName), name);
}
public void GetName_WithObjectWithProperty_ReturnsValueOfProperty()
{
// Setup
const string expectedName = "expectedName";
var attribute = new KeyValueElementAttribute(nameof(TestObject.Name), nameof(TestObject.Value));
// Call
string name = attribute.GetName(new TestObject
{
Name = expectedName
});
// Assert
Assert.AreEqual(expectedName, name);
}
public void GetProperties_FromArray_ReturnPropertyDescriptorsForEachElementWithNameToOneBasedIndex(int elementCount)
{
// Setup
var attribute = new KeyValueElementAttribute(nameof(TestObject.Name), nameof(TestObject.Value));
var attributes = new AttributeCollection(attribute);
var mocks = new MockRepository();
var context = mocks.Stub <ITypeDescriptorContext>();
var descriptor = mocks.Stub <PropertyDescriptor>("name", new Attribute[0]);
descriptor.Stub(d => d.Attributes).Return(attributes);
context.Stub(c => c.PropertyDescriptor).Return(descriptor);
mocks.ReplayAll();
const string name = "name";
const string value = "value";
TestObject[] array = Enumerable.Repeat(new TestObject
{
Name = name,
Value = value
}, elementCount).ToArray();
var converter = new KeyValueExpandableArrayConverter();
// Call
PropertyDescriptorCollection propertyDescriptors = converter.GetProperties(context, array);
// Assert
Assert.IsNotNull(propertyDescriptors);
Assert.AreEqual(elementCount, propertyDescriptors.Count);
for (var i = 0; i < elementCount; i++)
{
Assert.AreEqual(typeof(TestObject), propertyDescriptors[i].ComponentType);
Assert.AreEqual(name, propertyDescriptors[i].Name);
Assert.AreEqual(name, propertyDescriptors[i].DisplayName);
Assert.AreEqual(value.GetType(), propertyDescriptors[i].PropertyType);
CollectionAssert.IsEmpty(propertyDescriptors[i].Attributes);
var actualValue = propertyDescriptors[i].GetValue(array) as string;
Assert.NotNull(actualValue);
Assert.AreEqual(value, actualValue);
}
mocks.VerifyAll();
}