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// -----------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
// -----------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System.UnitTesting;
using System.ComponentModel.Composition.Factories;
using System.ComponentModel.Composition.Primitives;
namespace System.ComponentModel.Composition
{
[TestClass]
public class ExportDefinitionTests
{
[TestMethod]
public void Constructor1_ShouldSetMetadataPropertyToEmptyDictionary()
{
var definition = new DerivedExportDefinition();
EnumerableAssert.IsEmpty(definition.Metadata);
}
[TestMethod]
public void Constructor1_ShouldSetMetadataPropertyToReadOnlyDictionary()
{
var definition = new DerivedExportDefinition();
ExceptionAssert.Throws<NotSupportedException>(() =>
{
definition.Metadata["Value"] = "Value";
});
}
[TestMethod]
public void Constructor2_NullAsContractNameArgument_ShouldThrowArgumentNull()
{
ExceptionAssert.ThrowsArgument<ArgumentNullException>("contractName", () =>
{
new ExportDefinition((string)null, new Dictionary<string, object>());
});
}
[TestMethod]
public void Constructor2_EmptyStringAsContractNameArgument_ShouldThrowArgument()
{
ExceptionAssert.ThrowsArgument<ArgumentException>("contractName", () =>
{
new ExportDefinition(string.Empty, new Dictionary<string, object>());
});
}
[TestMethod]
public void Constructor2_ValueAsContractNameArgument_ShouldSetContractNameProperty()
{
var expectations = Expectations.GetContractNames();
foreach (var e in expectations)
{
var definition = new ExportDefinition(e, new Dictionary<string, object>());
Assert.AreEqual(e, definition.ContractName);
}
}
[TestMethod]
public void Constructor2_NullAsMetadataArgument_ShouldSetMetadataPropertyToEmptyDictionary()
{
var definition = new ExportDefinition("Contract", (IDictionary<string, object>)null); ;
EnumerableAssert.IsEmpty(definition.Metadata);
}
[TestMethod]
public void Constructor2_NullAsMetadataArgument_ShouldSetMetadataPropertyToReadOnlyDictionary()
{
var definition = new ExportDefinition("Contract", (IDictionary<string, object>)null);
ExceptionAssert.Throws<NotSupportedException>(() =>
{
definition.Metadata["Value"] = "Value";
});
}
[TestMethod]
public void Constructor2_WritableDictionaryAsMetadataArgument_ShouldSetMetadataPropertyToReadOnlyDictionary()
{
var definition = new ExportDefinition("Contract", new Dictionary<string, object>());
ExceptionAssert.Throws<NotSupportedException>(() =>
{
definition.Metadata["Value"] = "Value";
});
}
[TestMethod]
public void Constructor2_DictionaryAsMetadataArgument_ShouldSetMetadataProperty()
{
var expectations = Expectations.GetMetadata();
foreach (var e in expectations)
{
var definition = new ExportDefinition("Contract", e);
EnumerableAssert.AreEqual(e, definition.Metadata);
}
}
[TestMethod]
public void ContractName_WhenNotOverridden_ShouldThrowNotImplemented()
{
var definition = new DerivedExportDefinition();
ExceptionAssert.Throws<NotImplementedException>(() =>
{
var contractName = definition.ContractName;
});
}
[TestMethod]
public void ToString_WhenContractNameNotOverridden_ShouldThrowNotImplemented()
{
var definition = new DerivedExportDefinition();
ExceptionAssert.Throws<NotImplementedException>(() =>
{
definition.ToString();
});
}
[TestMethod]
public void ToString_ShouldReturnContractNameProperty()
{
var expectations = Expectations.GetContractNames();
foreach (var e in expectations)
{
var definition = new ExportDefinition(e, new Dictionary<string, object>());
Assert.AreEqual(e, definition.ToString());
}
}
[TestMethod]
public void ToString_ShouldReturnOverriddenContractNameProperty()
{
var expectations = Expectations.GetContractNamesWithEmpty();
foreach (var e in expectations)
{
var definition = new DerivedExportDefinition(() => e);
Assert.AreEqual(e, definition.ToString());
}
}
private class DerivedExportDefinition : ExportDefinition
{
private readonly Func<string> _contractNameGetter;
public DerivedExportDefinition()
{
}
public DerivedExportDefinition(Func<string> contractNameGetter)
{
_contractNameGetter = contractNameGetter;
}
public override string ContractName
{
get
{
if (_contractNameGetter != null)
{
return _contractNameGetter();
}
return base.ContractName;
}
}
}
}
}
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