public void TestCompareTo ()
{
Enum e1 = new TestingEnum ();
Enum e2 = new TestingEnum ();
Enum e3 = new TestingEnum2 ();
Assert.AreEqual (0, e1.CompareTo (e1), "#A1");
Assert.AreEqual (0, e1.CompareTo (e2), "#A2");
TestingEnum x = TestingEnum.This;
TestingEnum y = TestingEnum.Is;
Assert.AreEqual (0, x.CompareTo (x), "#B1");
Assert.AreEqual (-1, x.CompareTo (y), "#B2");
Assert.AreEqual (1, y.CompareTo (x), "#B3");
try {
e1.CompareTo (e3);
Assert.Fail ("#C1");
} catch (ArgumentException ex) {
// Object must be the same type as the enum.
// The type passed in was MonoTests.System.EnumTest+TestingEnum2;
// the enum type was MonoTests.System.EnumTest+TestingEnum
Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#A2");
Assert.IsNull (ex.InnerException, "#A3");
Assert.IsNotNull (ex.Message, "#A4");
Assert.IsTrue (ex.Message.IndexOf (typeof (TestingEnum).FullName) != -1, "#A5");
Assert.IsTrue (ex.Message.IndexOf (typeof (TestingEnum2).FullName) != -1, "#A6");
Assert.IsNull (ex.ParamName, "#A7");
}
try {
((Enum) e1).CompareTo ((Enum) e3);
Assert.Fail ("#D1");
} catch (ArgumentException ex) {
// Object must be the same type as the enum.
// The type passed in was MonoTests.System.EnumTest+TestingEnum2;
// the enum type was MonoTests.System.EnumTest+TestingEnum
Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#D2");
Assert.IsNull (ex.InnerException, "#D3");
Assert.IsNotNull (ex.Message, "#D4");
Assert.IsTrue (ex.Message.IndexOf (typeof (TestingEnum).FullName) != -1, "#D5");
Assert.IsTrue (ex.Message.IndexOf (typeof (TestingEnum2).FullName) != -1, "#D6");
Assert.IsNull (ex.ParamName, "#D7");
}
}
public void TestCompareTo() {
Enum e1 = new TestingEnum();
Enum e2 = new TestingEnum();
Enum e3 = new TestingEnum2();
AssertEquals("An enum should equal itself",
0, e1.CompareTo(e1));
AssertEquals("An enum should equal a copy",
0, e1.CompareTo(e2));
TestingEnum x = TestingEnum.This;
TestingEnum y = TestingEnum.Is;
AssertEquals("should equal", 0, x.CompareTo(x));
AssertEquals("less than", -1, x.CompareTo(y));
AssertEquals("greater than", 1, y.CompareTo(x));
{
bool errorThrown = false;
try {
e1.CompareTo(e3);
} catch (ArgumentException) {
errorThrown = true;
}
Assert("1) Compare type mismatch not caught.",
errorThrown);
}
{
bool errorThrown = false;
try {
((Enum)e1).CompareTo((Enum)e3);
} catch (ArgumentException) {
errorThrown = true;
}
Assert("2) Compare type mismatch not caught.",
errorThrown);
}
}
