public void ExpressionsCanBeUsed_ToDefine_AnArgumentName()
{
var paramName1 = string.Empty;
ClassOuter paramName2 = null;
var ex1 =
Assert.Throws <ArgumentNullException>(() =>
Checker.NotNullArgument(null, () => paramName1));
var ex2 =
Assert.Throws <ArgumentNullException>(() =>
Checker.NotNullArgument(paramName2?.InnerProp?.InnerInnerProp,
() => paramName2.InnerProp.InnerInnerProp));
Assert.Equal("paramName1", ex1.ParamName);
Assert.Equal("paramName2.InnerProp.InnerInnerProp", ex2.ParamName);
}
public void ExpressionsCanBeUsed_ToDefine_AnArgumentNameInAllExtensionsMethods()
{
ClassOuter paramName = null;
var ex1 = Assert.Throws <ArgumentNullException>(() =>
Checker.NotNullArgument(null, () => paramName.InnerProp.InnerInnerProp));
var ex2 = Assert.Throws <NullReferenceException>(() =>
Checker.NotNullObject(null, () => paramName.InnerProp.InnerInnerProp));
var ex3 = Assert.Throws <ArgumentNullException>(() =>
Checker.NotEmptyArgument(null, () => paramName.InnerProp.InnerInnerProp));
var ex4 = Assert.Throws <ArgumentNullException>(() =>
Checker.NotEmptyArgument(string.Empty, () => paramName.InnerProp.InnerInnerProp));
var ex5 = Assert.Throws <ArgumentNullException>(() =>
Checker.NotEmptyOrWhiteArgument(null, () => paramName.InnerProp.InnerInnerProp));
var ex6 = Assert.Throws <ArgumentNullException>(() =>
Checker.NotEmptyOrWhiteArgument(string.Empty,
() => paramName.InnerProp.InnerInnerProp));
var ex7 = Assert.Throws <ArgumentNullException>(() =>
Checker.NotEmptyOrWhiteArgument(" ",
() => paramName.InnerProp.InnerInnerProp));
var ex8 = Assert.Throws <ArgumentNullException>(() =>
Checker.NotNullOrEmptyArgument((int[])null,
() => paramName.InnerProp.InnerInnerProp));
var ex9 = Assert.Throws <ArgumentNullException>(() =>
Checker.NotNullOrEmptyArgument(new int[0],
() => paramName.InnerProp.InnerInnerProp));
Assert.Equal("paramName.InnerProp.InnerInnerProp", ex1.ParamName);
Assert.Equal("Object paramName.InnerProp.InnerInnerProp can not be null", ex2.Message);
Assert.Equal("paramName.InnerProp.InnerInnerProp", ex3.ParamName);
Assert.Equal("paramName.InnerProp.InnerInnerProp", ex4.ParamName);
Assert.Equal("paramName.InnerProp.InnerInnerProp", ex5.ParamName);
Assert.Equal("paramName.InnerProp.InnerInnerProp", ex6.ParamName);
Assert.Equal("paramName.InnerProp.InnerInnerProp", ex7.ParamName);
Assert.Equal("paramName.InnerProp.InnerInnerProp", ex8.ParamName);
Assert.Equal("paramName.InnerProp.InnerInnerProp", ex9.ParamName);
}