func TestShouldCompareTwoNumeralsAsNotEqual(t *testing.T) {
a, _ := roman.NewNumeral("I")
b, _ := roman.NewNumeral("X")
if a.Equals(b) == true {
t.Fatal("Shouldn't be same value")
}
}
func TestShouldBeEqualIfSameNumeral(t *testing.T) {
a, _ := roman.NewNumeral("I")
b, _ := roman.NewNumeral("I")
if a.Equals(b) == false {
t.Fatal("Not same value as")
}
}
func TestShouldBeEqualIfIntegerEquivalent(t *testing.T) {
a, _ := roman.NewNumeral(5)
b, _ := roman.NewNumeral("V")
if a.Equals(b) == false {
t.Fatal("Not same value as")
}
}
func ExampleEquals_Numeral() {
a, _ := roman.NewNumeral(5)
b, _ := roman.NewNumeral("V")
fmt.Println(a.Equals(b))
// Output: true
}
func TestShouldNotBeEqualIfNotNumeral(t *testing.T) {
var notNumeral NotNumeral
numeral, _ := roman.NewNumeral("I")
if numeral.Equals(notNumeral) == true {
t.Fatal("Different value object types can not be equal")
}
}
func TestConvertIntegerToNumeral(t *testing.T) {
for _, example := range integerToNumeralTests {
n, err := roman.NewNumeral(example.integer)
if err != nil {
t.Fatal(err)
}
if n.String() != example.numeral {
t.Fatalf("string representation should be %s, was %s", example.numeral, n.String())
}
}
}
func TestShouldntAcceptInvalidString(t *testing.T) {
_, err := roman.NewNumeral("B")
if err == nil {
t.Fatal("We expected an error with A")
}
}
func ExampleString_Numeral() {
numeral, _ := roman.NewNumeral(5)
fmt.Println(numeral.String())
// Output: V
}