public void GivenParametersOfSameNameWhenGetOrCacheCalledThenShouldReturnSameInstance()
{
var target = new SerializationState();
var param1 = Expression.Parameter(typeof(int));
var param2 = Expression.Parameter(typeof(int), nameof(target));
var param3 = Expression.Parameter(typeof(int), nameof(param1));
var param4 = Expression.Parameter(typeof(int));
var param5 = Expression.Parameter(typeof(int), nameof(target));
var cache1 = target.GetOrCacheParameter(param1);
var cache2 = target.GetOrCacheParameter(param2);
var cache3 = target.GetOrCacheParameter(param3);
var cache4 = target.GetOrCacheParameter(param4);
var cache5 = target.GetOrCacheParameter(param5);
Assert.Same(param1, cache1);
Assert.Same(param2, cache2);
Assert.Same(param3, cache3);
Assert.NotSame(param4, cache4);
Assert.Same(param1, cache4);
Assert.NotSame(param5, cache5);
Assert.Same(param2, cache5);
}
