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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
using System;
using System.ComponentModel.Composition;
using System.Collections.Generic;
using System.Linq;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System.Linq.Expressions;
using System.Text.RegularExpressions;
using System.UnitTesting;
using System.ComponentModel.Composition.Factories;
using System.ComponentModel.Composition.Primitives;
namespace System.ComponentModel.Composition
{
[TestClass]
public class ImportDefinitionTests
{
[TestMethod]
public void Constructor1_ShouldSetCardinalityPropertyToExactlyOne()
{
var definition = new NoOverridesImportDefinition();
Assert.AreEqual(ImportCardinality.ExactlyOne, definition.Cardinality);
}
[TestMethod]
public void Constructor1_ShouldSetIsPrerequisitePropertyToTrue()
{
var definition = new NoOverridesImportDefinition();
Assert.IsTrue(definition.IsPrerequisite);
}
[TestMethod]
public void Constructor1_ShouldSetIsRecomposablePropertyToFalse()
{
var definition = new NoOverridesImportDefinition();
Assert.IsFalse(definition.IsRecomposable);
}
[TestMethod]
public void Constructor2_NullAsConstraintArgument_ShouldThrowArgumentNull()
{
ExceptionAssert.ThrowsArgument<ArgumentNullException>("constraint", () =>
{
new ImportDefinition((Expression<Func<ExportDefinition, bool>>)null, "", ImportCardinality.ExactlyOne, false, false);
});
}
[TestMethod]
public void Constructor2_OutOfRangeValueAsCardinalityArgument_ShouldThrowArgument()
{
var expectations = Expectations.GetInvalidEnumValues<ImportCardinality>();
foreach (var e in expectations)
{
ExceptionAssert.ThrowsArgument<ArgumentException>("cardinality", () =>
{
new ImportDefinition(d => true, "", e, false, false);
});
}
}
[TestMethod]
public void Constructor2_ValueAsCardinalityArgument_ShouldSetCardinalityProperty()
{
var expectations = Expectations.GetEnumValues<ImportCardinality>();
foreach (var e in expectations)
{
var definition = new ImportDefinition(d => true, "", e, false, false);
Assert.AreEqual(e, definition.Cardinality);
}
}
[TestMethod]
public void Constructor2_ValueAsConstraintArgument_ShouldSetConstraintProperty()
{
var expectations = new List<Expression<Func<ExportDefinition, bool>>>();
expectations.Add(d => d.ContractName == "ContractName");
expectations.Add(d => d.ContractName.Equals("ContractName"));
expectations.Add(d => (string)d.Metadata["Name"] == "Value");
expectations.Add(d => true);
foreach (var e in expectations)
{
var definition = new ImportDefinition(e, "", ImportCardinality.ExactlyOne, false, false);
Assert.AreEqual(e, definition.Constraint);
}
}
[TestMethod]
public void Constructor2_ValueAsIsRecomposableArgument_ShouldSetIsRecomposableProperty()
{
var expectations = Expectations.GetBooleans();
foreach (var e in expectations)
{
var definition = new ImportDefinition(d => true, "", ImportCardinality.ExactlyOne, e, false);
Assert.AreEqual(e, definition.IsRecomposable);
}
}
[TestMethod]
public void Constructor2_ValueAsIsPrerequisiteArgument_ShouldSetIsPrerequisiteProperty()
{
var expectations = Expectations.GetBooleans();
foreach (var e in expectations)
{
var definition = new ImportDefinition(d => true, "", ImportCardinality.ExactlyOne, false, e);
Assert.AreEqual(e, definition.IsPrerequisite);
}
}
[TestMethod]
public void Constructor2_ContractName_ShouldSetAppropriately()
{
var expectations = new ExpectationCollection<string, string>();
expectations.Add(null, string.Empty);
expectations.Add(string.Empty, string.Empty);
expectations.Add("Contract", "Contract");
string cn = AttributedModelServices.GetContractName(typeof(ImportDefinitionTests));
expectations.Add(cn, cn);
foreach (var e in expectations)
{
var definition = new ImportDefinition(d => true, e.Input, ImportCardinality.ExactlyOne, false, false);
Assert.AreEqual(e.Output, definition.ContractName);
}
}
[TestMethod]
public void Constraint_WhenNotOverridden_ShouldThrowNotImplemented()
{
var definition = new NoOverridesImportDefinition();
ExceptionAssert.Throws<NotImplementedException>(() =>
{
var constraint = definition.Constraint;
});
}
[TestMethod]
public void ToString_WhenConstraintPropertyNotOverridden_ShouldThrowNotImplemented()
{
var definition = new NoOverridesImportDefinition();
ExceptionAssert.Throws<NotImplementedException>(() =>
{
definition.ToString();
});
}
[TestMethod]
public void ToString_ValueAsConstraintArgument_ShouldReturnConstraintProperty()
{
var expectations = new ExpectationCollection<Expression<Func<ExportDefinition, bool>>, string>();
expectations.Add(d => d.ContractName == "ContractName", @"d.ContractName ==? ""ContractName""");
expectations.Add(d => d.ContractName.Equals("ContractName"), @"d.ContractName.Equals\(""ContractName""\)");
expectations.Add(d => (string)d.Metadata["Name"] == "Value", @"Convert\(d.Metadata.get_Item\(""Name""\)\) ==? ""Value""");
expectations.Add(d => true, "True");
foreach (var e in expectations)
{
var item = new ImportDefinition(e.Input, "", ImportCardinality.ExactlyOne, false, false);
Assert.IsTrue(Regex.IsMatch(item.ToString(), e.Output));
}
}
[TestMethod]
public void ToString_DerivedImportDefinition_ShouldReturnOverriddenConstraintProperty()
{
var expectations = new ExpectationCollection<Expression<Func<ExportDefinition, bool>>, string>();
expectations.Add(d => d.ContractName == "ContractName", @"d.ContractName ==? ""ContractName""");
expectations.Add(d => d.ContractName.Equals("ContractName"), @"d.ContractName.Equals\(""ContractName""\)");
expectations.Add(d => (string)d.Metadata["Name"] == "Value", @"Convert\(d.Metadata.get_Item\(""Name""\)\) ==? ""Value""");
expectations.Add(d => true, "True");
foreach (var e in expectations)
{
var item = new DerivedImportDefinition(e.Input);
Assert.IsTrue(Regex.IsMatch(item.ToString(), e.Output));
}
}
[TestMethod]
[WorkItem(738535)]
[Ignore]
public void ContractName_ShouldBeIncludedInConstraintAutomatically()
{
string testContractName = "TestContractName";
var contractImportDefinition = new ImportDefinition(ed => true, testContractName, ImportCardinality.ZeroOrMore, false, false);
var shouldMatch = new ExportDefinition(testContractName, null);
var shouldNotMatch = new ExportDefinition(testContractName + testContractName, null);
Assert.IsTrue(contractImportDefinition.IsConstraintSatisfiedBy(shouldMatch));
Assert.IsFalse(contractImportDefinition.IsConstraintSatisfiedBy(shouldNotMatch));
}
[TestMethod]
public void EmptyContractName_ShouldMatchAllContractNames()
{
var importDefinition = new ImportDefinition(ed => true, string.Empty, ImportCardinality.ZeroOrMore, false, false);
var shouldMatch1 = new ExportDefinition("contract1", null);
var shouldMatch2 = new ExportDefinition("contract2", null);
Assert.IsTrue(importDefinition.IsConstraintSatisfiedBy(shouldMatch1));
Assert.IsTrue(importDefinition.IsConstraintSatisfiedBy(shouldMatch2));
}
private class NoOverridesImportDefinition : ImportDefinition
{
}
private class DerivedImportDefinition : ImportDefinition
{
private readonly Expression<Func<ExportDefinition, bool>> _constraint;
public DerivedImportDefinition(Expression<Func<ExportDefinition, bool>> constraint)
{
_constraint = constraint;
}
public override Expression<Func<ExportDefinition, bool>> Constraint
{
get { return _constraint ?? base.Constraint; }
}
}
}
}
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