public void Visit_CompareSameMethodsOnSameObject_ThrowsWarning()
{
var account = new Account();
var inspector = new InspectExpressionVisitor();
Expression<Func<bool>> expression = () => account.GetName() == account.GetName();
TestDelegate action = () => inspector.Visit(expression);
Assert.That(action, Throws.TypeOf<InspectionWarning>());
}
public void Print_MemberAccess_Prints()
{
var account = new Account();
var initialDeposit = 100;
account.Deposit(initialDeposit);
var visitor = new AssertionExpressionVisitor();
Expression<Func<decimal>> memberAccess = () => account.Balance;
visitor.Visit(memberAccess);
var message = GetMessage(visitor);
Expect(message, Is.EqualTo("account.Balance [100]"));
}
public void Visit_CompareSameMethodsOnDifferntObjects_ThrowsWarning()
{
var account = new Account();
account.SetName("A");
var otherAccount = new Account();
account.SetName("B");
var inspector = new InspectExpressionVisitor();
Expression<Func<bool>> expression = () => account.GetMe().GetName() == otherAccount.GetMe().GetName();
TestDelegate action = () => inspector.Visit(expression);
Assert.That(action, Throws.Nothing);
}
public void Visit_DifferentMembers_DoesNotThrowWarning()
{
var account = new Account();
var otherAccount = new Account();
var inspector = new InspectExpressionVisitor();
Expression<Func<bool>> expression = () => account == otherAccount;
TestDelegate action = () => inspector.Visit(expression);
Assert.That(action, Throws.Nothing);
}
public void Print_MethodCall_Prints()
{
var account = new Account();
account.SetName("Bob");
var visitor = new AssertionExpressionVisitor();
Expression<Func<string>> methodCall = () => account.GetName();
visitor.Visit(methodCall);
var message = GetMessage(visitor);
Expect(message, Is.EqualTo("account.GetName() ['Bob']"));
}
public void Print_QueryWithArgument_Prints()
{
var account = new Account();
var visitor = new AssertionExpressionVisitor();
int a = 2;
Expression<Action> queryWithArgument = () => account.AddNumbers(a, 1);
visitor.Visit(queryWithArgument);
var message = GetMessage(visitor);
Expect(message, Is.EqualTo("account.AddNumbers(a [2], 1) [3]"));
}
public void Print_MethodWithArgument_Prints()
{
var account = new Account();
account.SetName("Bob");
var visitor = new AssertionExpressionVisitor();
decimal amount = 100;
decimal otherAmount = 200;
Expression<Action> methodWithArgument = () => account.Deposits(amount, otherAmount);
visitor.Visit(methodWithArgument);
var message = GetMessage(visitor);
Expect(message, Is.EqualTo("account.Deposits(amount [100], otherAmount [200])"));
}
public void Expect_CompareSameThings_Warns()
{
var account = new Account();
Assert.That(() => Expect(() => account == account), Throws.TypeOf<InspectionWarning>());
}
