1 files changed, 75 insertions, 0 deletions
diff --git a/linker/Tests/TestCasesRunner/TestCaseMetadaProvider.cs b/linker/Tests/TestCasesRunner/TestCaseMetadaProvider.cs
new file mode 100644
index 000000000..d4bfc1f19
--- /dev/null
+++ b/linker/Tests/TestCasesRunner/TestCaseMetadaProvider.cs
@@ -0,0 +1,75 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Mono.Cecil;
+using Mono.Linker.Tests.Cases.Expectations.Assertions;
+using Mono.Linker.Tests.Cases.Expectations.Metadata;
+using Mono.Linker.Tests.Extensions;
+using Mono.Linker.Tests.TestCases;
+
+namespace Mono.Linker.Tests.TestCasesRunner {
+	public class TestCaseMetadaProvider {
+		protected readonly TestCase _testCase;
+		protected readonly AssemblyDefinition _fullTestCaseAssemblyDefinition;
+		protected readonly TypeDefinition _testCaseTypeDefinition;
+
+		public TestCaseMetadaProvider (TestCase testCase, AssemblyDefinition fullTestCaseAssemblyDefinition)
+		{
+			_testCase = testCase;
+			_fullTestCaseAssemblyDefinition = fullTestCaseAssemblyDefinition;
+			// The test case types are never nested so we don't need to worry about that
+			_testCaseTypeDefinition = fullTestCaseAssemblyDefinition.MainModule.GetType (_testCase.ReconstructedFullTypeName);
+
+			if (_testCaseTypeDefinition == null)
+				throw new InvalidOperationException ($"Could not find the type definition for {_testCase.Name} in {_testCase.SourceFile}");
+		}
+
+		public virtual TestCaseLinkerOptions GetLinkerOptions ()
+		{
+			// This will end up becoming more complicated as we get into more complex test cases that require additional
+			// data
+			var value = "skip";
+			var coreLinkAttribute = _testCaseTypeDefinition.CustomAttributes.FirstOrDefault (attr => attr.AttributeType.Name == nameof (CoreLinkAttribute));
+			if (coreLinkAttribute != null)
+				value = (string) coreLinkAttribute.ConstructorArguments.First ().Value;
+			return new TestCaseLinkerOptions {CoreLink = value};
+		}
+
+		public virtual IEnumerable<string> GetReferencedAssemblies ()
+		{
+			yield return "mscorlib.dll";
+
+			foreach (var referenceAttr in _testCaseTypeDefinition.CustomAttributes.Where (attr => attr.AttributeType.Name == nameof (ReferenceAttribute))) {
+				yield return (string) referenceAttr.ConstructorArguments.First ().Value;
+			}
+		}
+
+		public virtual IEnumerable<NPath> GetExtraLinkerSearchDirectories ()
+		{
+			yield break;
+		}
+
+		public bool IsIgnored (out string reason)
+		{
+			var ignoreAttribute = _testCaseTypeDefinition.CustomAttributes.FirstOrDefault (attr => attr.AttributeType.Name == nameof (IgnoreTestCaseAttribute));
+			if (ignoreAttribute != null) {
+				reason = (string)ignoreAttribute.ConstructorArguments.First ().Value;
+				return true;
+			}
+
+			reason = null;
+			return false;
+		}
+
+		public virtual IEnumerable<NPath> AdditionalFilesToSandbox ()
+		{
+			foreach (var attr in _testCaseTypeDefinition.CustomAttributes) {
+				if (attr.AttributeType.Name != nameof (SandboxDependencyAttribute))
+					continue;
+
+				var relativeDepPath = ((string) attr.ConstructorArguments.First ().Value).ToNPath ();
+				yield return _testCase.SourceFile.Parent.Combine (relativeDepPath);
+			}
+		}
+	}
+}
+\ No newline at end of file