我可以期望（要求）通过测试失败吗？

Question

In other test frameworks that I have used, when writing test helpers, it's nice to be able to automatically test them, i.e. test that they fail as well as pass.

Let me use the following for the helper (in reality it's a lot more complex):

func IsRedirect(t *testing.T, code int) {
    assert.True(t, code >= 300)
    assert.True(t, code < 400)
}

Then sure, I can write:

func TestIsRedirect(t *testing.T) {
    IsRedirect(t, http.StatusSeeOther)
}

But I'd also like to write something like:

func TestNotRedirect(t *testing.T) {
    t.RequireFailure()
    IsRedirect(t, http.StatusOK)
}

Note, I don't really want to write:

func IsRedirect(code int) bool

because the function has more than just one or two conditions that can fail, and I want to be able to assert on the specific failure case.

Answer 1

You could do something like the following:

func IsRedirect(t *testing.T, code int, b bool) {
    assert.Equal(t, b, code >= 300)
    assert.Equal(t, b, code < 400)
}

func TestNotRedirect(t *testing.T) {
    IsRedirect(t, http.StatusOK, false)
}