66 lines
2.3 KiB
C#
66 lines
2.3 KiB
C#
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using System;
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using System.Linq;
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using System.Reflection;
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using NUnit.Framework;
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namespace Umbraco.Tests.Testing
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{
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public abstract class TestOptionAttributeBase : Attribute
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{
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public static TOptions GetTestOptions<TOptions>(MethodInfo method)
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where TOptions : TestOptionAttributeBase, new()
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{
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var attr = ((TOptions[]) method.GetCustomAttributes(typeof (TOptions), true)).FirstOrDefault();
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var type = method.DeclaringType;
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return Get(type, attr);
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}
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public static TOptions GetFixtureOptions<TOptions>(Type type)
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where TOptions : TestOptionAttributeBase, new()
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{
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return Get<TOptions>(type, null);
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}
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public static TOptions GetTestOptions<TOptions>()
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where TOptions : TestOptionAttributeBase, new()
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{
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var test = TestContext.CurrentContext.Test;
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var typeName = test.ClassName;
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var methodName = test.MethodName;
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var type = Type.GetType(typeName, true);
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if (type == null)
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throw new Exception("panic"); // makes no sense
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var methodInfo = type.GetMethod(methodName); // what about overloads?
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var options = GetTestOptions<TOptions>(methodInfo);
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return options;
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}
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private static TOptions Get<TOptions>(Type type, TOptions attr)
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where TOptions : TestOptionAttributeBase, new()
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{
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while (type != null && type != typeof(object))
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{
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var attr2 = ((TOptions[]) type.GetCustomAttributes(typeof (TOptions), true)).FirstOrDefault();
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if (attr2 != null)
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attr = attr == null ? attr2 : attr2.Merge(attr);
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type = type.BaseType;
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}
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return attr ?? new TOptions();
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}
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private TOptions Merge<TOptions>(TOptions other)
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where TOptions : TestOptionAttributeBase
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{
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if (other == null) throw new ArgumentNullException(nameof(other));
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if (!(Merge((TestOptionAttributeBase) other) is TOptions merged))
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throw new Exception("panic");
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return merged;
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}
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protected virtual TestOptionAttributeBase Merge(TestOptionAttributeBase other)
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{
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return this;
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}
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}
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}
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