Initial import

DelphiProjectHandler.Tests/Utilities/MethodRunnerClass.cs

@@ -0,0 +1,58 @@
+using System;
+using System.Reflection;
+
+namespace DelphiProjectHandler.Tests.Utilities
+{
+    /// <summary>
+    /// Runs static and non-static private methods.
+    /// </summary>
+    public class MethodRunner
+    {
+        /// <summary>
+        /// Runs a private method of an object instance.
+        /// </summary>
+        /// <param name="iObject">Existing object instance.</param>
+        /// <param name="iMethodName">Method to run.</param>
+        /// <param name="iParams">Parameters for the method.</param>
+        /// <returns>Result of running the method.</returns>
+        public static object RunInstance(object iObject, string iMethodName, object[] iParams)
+        {
+            BindingFlags vFlags = BindingFlags.Instance;
+            return RunMethod(iObject.GetType(), iObject, vFlags, iMethodName, iParams);
+        }
+
+        /// <summary>
+        /// Runs a private static method of a class.
+        /// </summary>
+        /// <param name="iType">Class type.</param>
+        /// <param name="iMethodName">Method to run.</param>
+        /// <param name="iParams">Parameters for the method.</param>
+        /// <returns>Result of running the method.</returns>
+        public static object RunStatic(Type iType, string iMethodName, object[] iParams)
+        {
+            BindingFlags vFlags = BindingFlags.Static;
+            return RunMethod(iType, null, vFlags, iMethodName, iParams);
+        }
+
+        /// <summary>
+        /// Runs a private static or non-static method of a class or existing object instance.
+        /// </summary>
+        /// <param name="iType">Class type.</param>
+        /// <param name="iObject">Existing object instance.</param>
+        /// <param name="iBindingFlags">Flags used when searching for the method.
+        /// By default BindingFlags.NonPublic and BindingFlags.Public will be
+        /// added.</param>
+        /// <param name="iMethodName">Method to run.</param>
+        /// <param name="iParams">Parameters for the method.</param>
+        /// <returns>Result of running the method.</returns>
+        protected static object RunMethod(Type iType, object iObject, BindingFlags iBindingFlags, string iMethodName, params object[] iParams)
+        {
+            iBindingFlags = iBindingFlags | BindingFlags.NonPublic | BindingFlags.Public;
+            MethodInfo vMethodInfo = iType.GetMethod(iMethodName, iBindingFlags);
+            if (vMethodInfo == null)
+                throw new ArgumentException("Private method " + iMethodName + " was not found in type " + iType.ToString());
+
+            return vMethodInfo.Invoke(iObject, iParams);
+        }
+    }
+}