public void BindSetIndexTest()
{
JsonValue jsonValue = AnyInstance.AnyJsonArray;
DynamicMetaObject target = GetJsonValueDynamicMetaObject(jsonValue);
TestSetIndexBinder.TestBindParams(target);
int value = 0;
foreach (KeyValuePair <string, JsonValue> pair in jsonValue)
{
TestSetIndexBinder.TestMetaObject(target, int.Parse(pair.Key), value++);
}
}
public static void TestMetaObject(DynamicMetaObject target, int index, JsonValue jsonValue, bool isValid = true)
{
string expectedMethodSignature = "System.Json.JsonValue SetValue(Int32, System.Object)";
SetIndexBinder binder = new TestSetIndexBinder();
DynamicMetaObject[] indexes = { new DynamicMetaObject(Expression.Parameter(typeof(int)), BindingRestrictions.Empty, index) };
DynamicMetaObject value = new DynamicMetaObject(Expression.Parameter(jsonValue.GetType()), BindingRestrictions.Empty, jsonValue);
DynamicMetaObject result = target.BindSetIndex(binder, indexes, value);
Assert.IsNotNull(result);
MethodCallExpression expression = result.Expression as MethodCallExpression;
Assert.IsNotNull(expression);
Assert.AreEqual <string>(expectedMethodSignature, expression.Method.ToString());
}
public static void TestBindParams(DynamicMetaObject target)
{
SetIndexBinder binder = new TestSetIndexBinder();
Expression typeExpression = Expression.Parameter(typeof(int));
DynamicMetaObject[] indexes = new DynamicMetaObject[] { new DynamicMetaObject(typeExpression, BindingRestrictions.Empty, 0) };
DynamicMetaObject value = new DynamicMetaObject(typeExpression, BindingRestrictions.Empty, (JsonValue)10);
ExceptionTestHelper.ExpectException <ArgumentNullException>(() => { var result = target.BindSetIndex(null, indexes, value); });
ExceptionTestHelper.ExpectException <ArgumentNullException>(() => { var result = target.BindSetIndex(binder, null, value); });
ExceptionTestHelper.ExpectException <ArgumentNullException>(() => { var result = target.BindSetIndex(binder, indexes, null); });
DynamicMetaObject[][] invalidIndexesParam =
{
new DynamicMetaObject[]
{
new DynamicMetaObject(typeExpression, BindingRestrictions.Empty, 0),
new DynamicMetaObject(typeExpression, BindingRestrictions.Empty, 1),
new DynamicMetaObject(typeExpression, BindingRestrictions.Empty, 2)
},
new DynamicMetaObject[]
{
new DynamicMetaObject(typeExpression, BindingRestrictions.Empty, null)
},
new DynamicMetaObject[]
{
}
};
foreach (DynamicMetaObject[] indexesParam in invalidIndexesParam)
{
DynamicMetaObject metaObj = target.BindSetIndex(binder, indexesParam, value);
Expression <Action> expression = Expression.Lambda <Action>(Expression.Block(metaObj.Expression), new ParameterExpression[] { });
ExceptionTestHelper.ExpectException <ArgumentException>(() => { expression.Compile().Invoke(); }, NonSingleNonNullIndexNotSupported);
}
}
public static void TestMetaObject(DynamicMetaObject target, int index, JsonValue jsonValue, bool isValid = true)
{
string expectedMethodSignature = "System.Json.JsonValue SetValue(Int32, System.Object)";
SetIndexBinder binder = new TestSetIndexBinder();
DynamicMetaObject[] indexes = { new DynamicMetaObject(Expression.Parameter(typeof(int)), BindingRestrictions.Empty, index) };
DynamicMetaObject value = new DynamicMetaObject(Expression.Parameter(jsonValue.GetType()), BindingRestrictions.Empty, jsonValue);
DynamicMetaObject result = target.BindSetIndex(binder, indexes, value);
Assert.IsNotNull(result);
MethodCallExpression expression = result.Expression as MethodCallExpression;
Assert.IsNotNull(expression);
Assert.AreEqual<string>(expectedMethodSignature, expression.Method.ToString());
}
public static void TestBindParams(DynamicMetaObject target)
{
SetIndexBinder binder = new TestSetIndexBinder();
Expression typeExpression = Expression.Parameter(typeof(int));
DynamicMetaObject[] indexes = new DynamicMetaObject[] { new DynamicMetaObject(typeExpression, BindingRestrictions.Empty, 0) };
DynamicMetaObject value = new DynamicMetaObject(typeExpression, BindingRestrictions.Empty, (JsonValue)10);
ExceptionTestHelper.ExpectException<ArgumentNullException>(() => { var result = target.BindSetIndex(null, indexes, value); });
ExceptionTestHelper.ExpectException<ArgumentNullException>(() => { var result = target.BindSetIndex(binder, null, value); });
ExceptionTestHelper.ExpectException<ArgumentNullException>(() => { var result = target.BindSetIndex(binder, indexes, null); });
DynamicMetaObject[][] invalidIndexesParam =
{
new DynamicMetaObject[]
{
new DynamicMetaObject(typeExpression, BindingRestrictions.Empty, 0),
new DynamicMetaObject(typeExpression, BindingRestrictions.Empty, 1),
new DynamicMetaObject(typeExpression, BindingRestrictions.Empty, 2)
},
new DynamicMetaObject[]
{
new DynamicMetaObject(typeExpression, BindingRestrictions.Empty, null)
},
new DynamicMetaObject[]
{
}
};
foreach (DynamicMetaObject[] indexesParam in invalidIndexesParam)
{
DynamicMetaObject metaObj = target.BindSetIndex(binder, indexesParam, value);
Expression<Action> expression = Expression.Lambda<Action>(Expression.Block(metaObj.Expression), new ParameterExpression[] { });
ExceptionTestHelper.ExpectException<ArgumentException>(() => { expression.Compile().Invoke(); }, NonSingleNonNullIndexNotSupported);
}
}
