public void Sut_creates_Expression_method_call_bound_to_arguments()
{
// Arrange
var target = ((Func<int, int, int>)Sum).Method;
const int firstAddend = 5;
const int secondAddend = 17;
var expectedSum = firstAddend + secondAddend;
var first = Expression.Constant(firstAddend);
var second = Expression.Constant(secondAddend);
var sut = new DynamicProxyMethodGeneratorSimulator();
// Act
var expr = sut.GetCallWrapper(target, first, second);
// Assert
var mce = expr as MethodCallExpression;
Assert.IsNotNull(mce, "Expected return value to be a MethodCallExpression.");
Assert.AreEqual(2, mce.Arguments.Count);
Assert.AreEqual(first, mce.Arguments[0]);
Assert.AreSame(second, mce.Arguments[1]);
var sum = Expression.Lambda<Func<int>>(mce).Compile();
var result = sum();
Assert.AreEqual(expectedSum, result);
}
public void Sut_creates_Expression_method_call_bound_to_arguments()
{
// Arrange
var target = ((Func <int, int, int>)Sum).Method;
const int firstAddend = 5;
const int secondAddend = 17;
var expectedSum = firstAddend + secondAddend;
var first = Expression.Constant(firstAddend);
var second = Expression.Constant(secondAddend);
var sut = new DynamicProxyMethodGeneratorSimulator();
// Act
var expr = sut.GetCallWrapper(target, first, second);
// Assert
var mce = expr as MethodCallExpression;
Assert.IsNotNull(mce, "Expected return value to be a MethodCallExpression.");
Assert.AreEqual(2, mce.Arguments.Count);
Assert.AreEqual(first, mce.Arguments[0]);
Assert.AreSame(second, mce.Arguments[1]);
var sum = Expression.Lambda <Func <int> >(mce).Compile();
var result = sum();
Assert.AreEqual(expectedSum, result);
}
public void When_client_can_create_DynamicMethods_with_skip_visibility_GetCallWrapper_returns_cached_DynamicMethod_on_multiple_calls()
{
// Arrange
MethodInfo target;
#if (NETCOREAPP1_0 || NETCOREAPP2_0)
target = ((Action)Simple).GetMethodInfo();
#else
target = ((Action)Simple).Method;
#endif
var sut = new DynamicProxyMethodGeneratorSimulator
{
HasPermissionsToCreateDynamicMethodsWithSkipVisibility = true
};
var sut2 = new DynamicProxyMethodGeneratorSimulator
{
HasPermissionsToCreateDynamicMethodsWithSkipVisibility = true
};
// Act
var expr = (MethodCallExpression)sut.GetCallWrapper(target);
var expr2 = (MethodCallExpression)sut2.GetCallWrapper(target);
// Assert
Assert.AreSame(expr.Method, expr2.Method);
}
public void When_client_cannot_create_DynamicMethod_with_skip_visibility_GetCallWrapper_returns_Expression_which_calls_method_directly()
{
// Arrange
MethodInfo target;
#if (NETCOREAPP1_0 || NETCOREAPP2_0)
target = ((Action)Simple).GetMethodInfo();
#else
target = ((Action)Simple).Method;
#endif
var sut = new DynamicProxyMethodGeneratorSimulator
{
HasPermissionsToCreateDynamicMethodsWithSkipVisibility = false
};
// Act
var expr = sut.GetCallWrapper(target);
// Assert
var mce = expr as MethodCallExpression;
//Expected return value to be a MethodCallExpression.
Assert.NotNull(mce);
Assert.Equal(target, mce.Method);
}
public void When_client_can_create_DynamicMethod_with_skip_visibility_GetCallWrapper_returns_Expression_which_calls_DynamicMethod()
{
// Arrange
MethodInfo target = typeof(DataServiceContext).GetMethod("GetMetadataUri", BindingFlags.Public | BindingFlags.Instance);
var sut = new DynamicProxyMethodGeneratorSimulator
{
HasPermissionsToCreateDynamicMethodsWithSkipVisibility = true
};
// Act
var expr = sut.GetCallWrapper(target);
// Assert
var mce = expr as MethodCallExpression;
Assert.IsNotNull(mce, "Expected return value to be a MethodCallExpression.");
Assert.IsInstanceOfType(mce.Method, typeof(DynamicMethod));
}
public void When_client_cannot_create_DynamicMethod_with_skip_visibility_GetCallWrapper_returns_Expression_which_calls_method_directly()
{
// Arrange
var target = ((Action)Simple).Method;
var sut = new DynamicProxyMethodGeneratorSimulator
{
HasPermissionsToCreateDynamicMethodsWithSkipVisibility = false
};
// Act
var expr = sut.GetCallWrapper(target);
// Assert
var mce = expr as MethodCallExpression;
Assert.IsNotNull(mce, "Expected return value to be a MethodCallExpression.");
Assert.AreEqual(target, mce.Method);
}
public void When_client_can_create_DynamicMethod_with_skip_visibility_GetCallWrapper_returns_Expression_which_calls_DynamicMethod()
{
// Arrange
MethodInfo target = typeof(DataServiceContext).GetMethod("GetMetadataUri", BindingFlags.Public | BindingFlags.Instance);
var sut = new DynamicProxyMethodGeneratorSimulator
{
HasPermissionsToCreateDynamicMethodsWithSkipVisibility = true
};
// Act
var expr = sut.GetCallWrapper(target);
// Assert
var mce = expr as MethodCallExpression;
Assert.IsNotNull(mce, "Expected return value to be a MethodCallExpression.");
Assert.IsInstanceOfType(mce.Method, typeof(DynamicMethod));
}
public void When_client_cannot_create_DynamicMethod_with_skip_visibility_GetCallWrapper_returns_Expression_which_calls_constructor_directly()
{
// Arrange
var target = typeof(DynamicProxyMethodGeneratorTests).GetConstructor(Type.EmptyTypes);
var sut = new DynamicProxyMethodGeneratorSimulator
{
HasPermissionsToCreateDynamicMethodsWithSkipVisibility = false
};
// Act
var expr = sut.GetCallWrapper(target);
// Assert
var nex = expr as NewExpression;
Assert.IsNotNull(nex, "Expected return value to be a NewExpression.");
Assert.AreEqual(target, nex.Constructor);
}
public void Sut_creates_Expression_method_call_bound_to_arguments()
{
// Arrange
MethodInfo target;
#if (NETCOREAPP1_0 || NETCOREAPP2_0)
target = ((Func <int, int, int>)Sum).GetMethodInfo();
#else
target = ((Func <int, int, int>)Sum).Method;
#endif
const int firstAddend = 5;
const int secondAddend = 17;
var expectedSum = firstAddend + secondAddend;
var first = Expression.Constant(firstAddend);
var second = Expression.Constant(secondAddend);
var sut = new DynamicProxyMethodGeneratorSimulator();
// Act
var expr = sut.GetCallWrapper(target, first, second);
// Assert
var mce = expr as MethodCallExpression;
Assert.NotNull(mce);
Assert.Equal(2, mce.Arguments.Count);
Assert.Equal(first, mce.Arguments[0]);
Assert.Same(second, mce.Arguments[1]);
var sum = Expression.Lambda <Func <int> >(mce).Compile();
var result = sum();
Assert.Equal(expectedSum, result);
}
public void When_client_cannot_create_DynamicMethod_with_skip_visibility_GetCallWrapper_returns_Expression_which_calls_method_directly()
{
// Arrange
var target = ((Action)Simple).Method;
var sut = new DynamicProxyMethodGeneratorSimulator
{
HasPermissionsToCreateDynamicMethodsWithSkipVisibility = false
};
// Act
var expr = sut.GetCallWrapper(target);
// Assert
var mce = expr as MethodCallExpression;
Assert.IsNotNull(mce, "Expected return value to be a MethodCallExpression.");
Assert.AreEqual(target, mce.Method);
}
public void When_client_can_create_DynamicMethods_with_skip_visibility_GetCallWrapper_returns_cached_DynamicMethod_on_multiple_calls()
{
// Arrange
var target = ((Action)Simple).Method;
var sut = new DynamicProxyMethodGeneratorSimulator
{
HasPermissionsToCreateDynamicMethodsWithSkipVisibility = true
};
var sut2 = new DynamicProxyMethodGeneratorSimulator
{
HasPermissionsToCreateDynamicMethodsWithSkipVisibility = true
};
// Act
var expr = (MethodCallExpression)sut.GetCallWrapper(target);
var expr2 = (MethodCallExpression)sut2.GetCallWrapper(target);
// Assert
Assert.AreSame(expr.Method, expr2.Method);
}
public void When_client_cannot_create_DynamicMethod_with_skip_visibility_GetCallWrapper_returns_Expression_which_calls_constructor_directly()
{
// Arrange
var target = typeof(DynamicProxyMethodGeneratorTests).GetConstructor(Type.EmptyTypes);
var sut = new DynamicProxyMethodGeneratorSimulator
{
HasPermissionsToCreateDynamicMethodsWithSkipVisibility = false
};
// Act
var expr = sut.GetCallWrapper(target);
// Assert
var nex = expr as NewExpression;
Assert.IsNotNull(nex, "Expected return value to be a NewExpression.");
Assert.AreEqual(target, nex.Constructor);
}
