public void Calls_GetMethodInfo__Asserts_Collection()
{
// Arrange
var method = Substitute.ForPartsOf <MethodInfo>();
method.Configure().GetGenericArguments()
.Returns(new[] { typeof(string) });
var call = Substitute.For <ICall>();
call.GetMethodInfo()
.Returns(method);
// Act
var action = () => FluentQueryHelper.AssertGenericArgument <string>(call);
// Assert
action();
call.Received().GetMethodInfo();
}
public void No_Generic_Arguments__Throws_GenericArgumentException()
{
// Arrange
var method = Substitute.ForPartsOf <MethodInfo>();
method.Configure().GetGenericArguments()
.Returns(Array.Empty <Type>());
var call = Substitute.For <ICall>();
call.GetMethodInfo()
.Returns(method);
// Act
var action = () => FluentQueryHelper.AssertGenericArgument <string>(call);
// Assert
var ex = Assert.Throws <GenericArgumentException>(action);
Assert.Equal("Expected one generic argument but found none.", ex.Message);
}
public void Incorrect_Type__Throws_GenericArgumentException()
{
// Arrange
var method = Substitute.ForPartsOf <MethodInfo>();
method.Configure().GetGenericArguments()
.Returns(new[] { typeof(string) });
var call = Substitute.For <ICall>();
call.GetMethodInfo()
.Returns(method);
// Act
var action = () => FluentQueryHelper.AssertGenericArgument <Guid>(call);
// Assert
var ex = Assert.Throws <GenericArgumentException>(action);
Assert.Contains($"Expected type '{typeof(Guid)}' but found '{typeof(string)}'.", ex.Message);
}
public void Too_Many_Generic_Arguments__Throws_GenericArgumentException()
{
// Arrange
var method = Substitute.ForPartsOf <MethodInfo>();
var args = Rnd.NumberF.GetInt32(2, 10);
method.Configure().GetGenericArguments()
.Returns(Enumerable.Repeat(typeof(string), args).ToArray());
var call = Substitute.For <ICall>();
call.GetMethodInfo()
.Returns(method);
// Act
var action = () => FluentQueryHelper.AssertGenericArgument <string>(call);
// Assert
var ex = Assert.Throws <GenericArgumentException>(action);
Assert.Equal($"Expected one generic argument but found {args}.", ex.Message);
}