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// ****************************************************************
// This is free software licensed under the NUnit license. You
// may obtain a copy of the license as well as information regarding
// copyright ownership at http://nunit.org/?p=license&r=2.4.
// ****************************************************************
using System;
using System.Collections;
using System.Reflection;
using System.Text.RegularExpressions;
namespace NUnit.Core.Builders
{
/// <summary>
/// Built-in SuiteBuilder for NUnit TestFixture
/// </summary>
public class NUnitTestFixtureBuilder : AbstractFixtureBuilder
{
public NUnitTestFixtureBuilder()
{
this.testCaseBuilders.Install( new NUnitTestCaseBuilder() );
}
#region AbstractFixtureBuilder Overrides
/// <summary>
/// Makes an NUnitTestFixture instance
/// </summary>
/// <param name="type">The type to be used</param>
/// <returns>An NUnitTestFixture as a TestSuite</returns>
protected override TestSuite MakeSuite( Type type )
{
return new NUnitTestFixture( type );
}
/// <summary>
/// Method that sets properties of the test suite based on the
/// information in the provided Type.
/// </summary>
/// <param name="type">The type to examine</param>
/// <param name="suite">The test suite being constructed</param>
protected override void SetTestSuiteProperties( Type type, TestSuite suite )
{
base.SetTestSuiteProperties( type, suite );
NUnitFramework.ApplyCommonAttributes( type, suite );
}
/// <summary>
/// Checks to see if the fixture type has the test fixture
/// attribute type specified in the parameters. Override
/// to allow additional types - based on name, for example.
/// </summary>
/// <param name="type">The fixture type to check</param>
/// <returns>True if the fixture can be built, false if not</returns>
public override bool CanBuildFrom(Type type)
{
return Reflect.HasAttribute( type, NUnitFramework.TestFixtureAttribute, true );
}
/// <summary>
/// Check that the fixture is valid. In addition to the base class
/// check for a valid constructor, this method ensures that there
/// is no more than one of each setup or teardown method and that
/// their signatures are correct.
/// </summary>
/// <param name="fixtureType">The type of the fixture to check</param>
/// <param name="reason">A message indicating why the fixture is invalid</param>
/// <returns>True if the fixture is valid, false if not</returns>
protected override bool IsValidFixtureType(Type fixtureType, ref string reason)
{
if (!base.IsValidFixtureType(fixtureType, ref reason))
return false;
if (!fixtureType.IsPublic && !fixtureType.IsNestedPublic)
{
reason = "Fixture class is not public";
return false;
}
return CheckSetUpTearDownMethod(fixtureType, "SetUp", NUnitFramework.SetUpAttribute, ref reason)
&& CheckSetUpTearDownMethod(fixtureType, "TearDown", NUnitFramework.TearDownAttribute, ref reason)
&& CheckSetUpTearDownMethod(fixtureType, "TestFixtureSetUp", NUnitFramework.FixtureSetUpAttribute, ref reason)
&& CheckSetUpTearDownMethod(fixtureType, "TestFixtureTearDown", NUnitFramework.FixtureTearDownAttribute, ref reason);
}
/// <summary>
/// Internal helper to check a single setup or teardown method
/// </summary>
/// <param name="fixtureType">The type to be checked</param>
/// <param name="attributeName">The short name of the attribute to be checked</param>
/// <returns>True if the method is present no more than once and has a valid signature</returns>
private bool CheckSetUpTearDownMethod(Type fixtureType, string name, string attributeName, ref string reason)
{
int count = Reflect.CountMethodsWithAttribute(
fixtureType, attributeName,
BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static | BindingFlags.DeclaredOnly,
true);
if (count == 0) return true;
if (count > 1)
{
reason = string.Format("More than one {0} method", name);
return false;
}
MethodInfo theMethod = Reflect.GetMethodWithAttribute(
fixtureType, attributeName,
BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static | BindingFlags.DeclaredOnly,
true);
if (theMethod != null)
{
if (theMethod.IsStatic ||
theMethod.IsAbstract ||
!theMethod.IsPublic && !theMethod.IsFamily ||
theMethod.GetParameters().Length != 0 ||
!theMethod.ReturnType.Equals(typeof(void)))
{
reason = string.Format("Invalid {0} method signature", name);
return false;
}
}
return true;
}
#endregion
}
}
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