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Viewing changes to src/NUnitFramework/core/TestCaseBuilder.cs

  • Committer: jnewkirk
  • Date: 2002-07-10 20:00:13 UTC
  • Revision ID: vcs-imports@canonical.com-20020710200013-j8us5mbi0usp7p02
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src/NUnitFramework/core/TestCaseBuilder.cs
 
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//
 
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// Copyright (C) 2002. James W. Newkirk, Michael C. Two, Alexei A. Vorontsov. All Rights Reserved.
 
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//
 
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namespace Nunit.Core
 
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{
 
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        using System;
 
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        using System.Reflection;
 
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        using Nunit.Framework;
 
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        /// <summary>
 
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        /// Summary description for TestCaseBuilder.
 
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        /// </summary>
 
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        public class TestCaseBuilder
 
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        {
 
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                public static TestCase Make(object fixture, MethodInfo method)
 
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                {
 
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                        TestCase testCase = null;
 
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                        if(HasTestAttribute(method) || HasObsoleteTestName(method))
 
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                        {
 
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                                if(IsTestMethodSignatureCorrect(method))
 
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                                {
 
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                                        if(!IsExpectedException(method))
 
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                                                testCase = new NormalTestCase(fixture, method);
 
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                                        else
 
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                                        {
 
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                                                Type expectedException = GetExpectedExceptions(method);
 
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                                                testCase = new ExpectedExceptionTestCase(fixture, method, expectedException);
 
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                                        }
 
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                                        if(HasIgnoreAttribute(method))
 
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                                        {
 
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                                                testCase.ShouldRun = false;
 
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                                                testCase.IgnoreReason = GetIgnoreReason(method);
 
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                                        }
 
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                                }
 
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                                else
 
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                                {
 
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                                        string reason = String.Format("Method: {0}'s signature is not correct", method.Name);
 
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                                        testCase = new NotRunnableTestCase(method, reason);
 
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                                }
 
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                        }
 
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                        return testCase;
 
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                }
 
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                public static TestCase Make(object fixture, string methodName)
 
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                {
 
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                        MethodInfo [] methods = fixture.GetType().GetMethods(BindingFlags.NonPublic|BindingFlags.Public|BindingFlags.Instance);
 
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                        foreach(MethodInfo method in methods)
 
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                        {
 
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                                if(method.Name.Equals(methodName))
 
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                                        return Make(fixture, method);
 
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                        }
 
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                        return null;
 
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                }
 
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                private static bool IsExpectedException(MethodInfo method)
 
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                {
 
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                        Type exceptionAttr = typeof(Nunit.Framework.ExpectedExceptionAttribute);
 
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                        object[] attributes = method.GetCustomAttributes(exceptionAttr, false);
 
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                        return attributes.Length == 1;
 
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                }
 
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                private static Type GetExpectedExceptions(MethodInfo method)
 
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                {
 
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                        Type exceptionAttr = typeof(Nunit.Framework.ExpectedExceptionAttribute);
 
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                        object[] attributes = method.GetCustomAttributes(exceptionAttr, false);
 
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                        Type returnType = null;
 
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                        if(attributes.Length == 1)
 
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                        {
 
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                                ExpectedExceptionAttribute expectedAttr = (ExpectedExceptionAttribute)attributes[0];
 
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                                returnType = expectedAttr.ExceptionType;
 
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                        }
 
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                        return returnType;
 
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                }
 
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                public static int CountTestCases(object fixture) 
 
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                {
 
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                        int testCases = 0;
 
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                        MethodInfo [] methods = fixture.GetType().GetMethods();
 
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                        foreach(MethodInfo method in methods)
 
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                        {
 
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                                if(IsTestMethod(method))
 
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                                        testCases++;
 
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                        }
 
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                        return testCases;
 
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                }
 
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                public static bool IsTestMethod(MethodInfo methodToCheck) 
 
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                {
 
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                        return
 
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                                (HasTestAttribute(methodToCheck) || HasObsoleteTestName(methodToCheck))
 
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                                && IsTestMethodSignatureCorrect(methodToCheck);
 
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                }
 
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                private static bool IsTestMethodSignatureCorrect(MethodInfo methodToCheck)
 
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                {
 
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                        return 
 
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                                !methodToCheck.IsAbstract
 
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                                && methodToCheck.IsPublic
 
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                                && methodToCheck.GetParameters().Length == 0
 
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                                && methodToCheck.ReturnType.Equals(typeof(void));
 
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                }
 
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                private static bool HasTestAttribute(MethodInfo methodToCheck)
 
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                {
 
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                        return methodToCheck.IsDefined(typeof(Nunit.Framework.TestAttribute),false);
 
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                }
 
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                private static bool HasObsoleteTestName(MethodInfo methodToCheck)
 
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                {
 
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                        return methodToCheck.Name.ToLower().StartsWith("test");
 
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                }
 
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                private static bool HasIgnoreAttribute(MethodInfo methodToCheck)
 
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                {
 
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                        Type ignoreMethodAttribute = typeof(Nunit.Framework.IgnoreAttribute);
 
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                        object[] attributes = methodToCheck.GetCustomAttributes(ignoreMethodAttribute, false);
 
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                        return attributes.Length == 1;
 
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                }
 
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                private static string GetIgnoreReason(MethodInfo methodToCheck)
 
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                {
 
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                        Type ignoreMethodAttribute = typeof(Nunit.Framework.IgnoreAttribute);
 
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                        IgnoreAttribute[] attributes = (IgnoreAttribute[])methodToCheck.GetCustomAttributes(ignoreMethodAttribute, false);
 
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                        string result = "no reason";
 
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                        if(attributes.Length > 0)
 
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                                result = attributes[0].Reason;
 
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                        return result;
 
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                }
 
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        }
 
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}