public void SupportKnownValuesDuringEqualityCheck()
{
var sut = new InvoiceItem("1", 1, 1);
Assert.False(sut.Equals(null));
Assert.False(sut.Equals((object)null));
Assert.True(sut.Equals((object)sut));
object other = "other type";
Assert.False(sut.Equals(other));
}
public void BeEqualBySimilarity(
string productId1,
decimal price1,
uint amount1,
string productId2,
decimal price2,
uint amount2,
bool expected)
{
var sut = new InvoiceItem(productId1, price1, amount1);
var other = new InvoiceItem(productId2, price2, amount2);
Assert.Equal(expected, sut.Equals(other));
Assert.Equal(expected, sut.Equals((object)other));
Assert.Equal(expected, sut == other);
Assert.Equal(expected, !(sut != other));
Assert.Equal(expected, sut.GetHashCode() == other.GetHashCode());
}
public void Equals_Test_TypeMismatch()
{
// arrange
InvoiceItem a = new InvoiceItem {
Description = "Item", Amount = 2.50M
};
int b = 0;
// act/assert
Assert.Throws <InvalidOperationException>(() => a.Equals(b));
}
public void Equals_Test_AreEqual()
{
// arrange
InvoiceItem a = new InvoiceItem {
Description = "Item", Amount = 2.50M
};
InvoiceItem b = new InvoiceItem {
Description = "Item", Amount = 2.50M
};
// act/assert
Assert.IsTrue(a.Equals(b));
}
public void Equals_Test_AreNotEqual(string descriptionA, decimal amountA,
string descriptionB, decimal amountB)
{
// arrange
InvoiceItem a = new InvoiceItem {
Description = descriptionA, Amount = amountA
};
InvoiceItem b = new InvoiceItem {
Description = descriptionB, Amount = amountB
};
// act/assert
Assert.IsFalse(a.Equals(b));
}