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Assert true/false with multiple conditions

See original GitHub issue

Say that you need to make an assertion over multiple boolean conditions, and you want them all to be true (or false).

Currently:

assertTrue(message1, condition1);
assertTrue(message2, condition2);
...
assertTrue(msg_n, cond_n);

But I want the test not to fail at the first unmet condition:

Def: assertTrue(boolean... conditions);
Usage: assertTrue(condition1, condition2, ..., cond_n);

But I would like to specify a message for each condition, in order to have a meaningful error message, in case of failure. So maybe:

Def: assertTrue(SelfDescribingBoolean... conditions);
Usage: assertTrue(bool(msg1, cond1), bool(msg2, cond2)...);

where bool is a factory method for building SelfDescribingBoolean ?

I know of hamcrest’s composite matcher allOf but it doesn’t help when you want to run many matchers against many subjects (one-to-one), does it? An alternative could probably be overloading assertThat so that it can support multiple subjects?

Thanks

Issue Analytics

State:
Created 8 years ago
Comments:6 (6 by maintainers)

Top GitHub Comments

1reaction

alb-i986commented, May 28, 2015

Uhm… I don’t think so.

My client code is this at the moment:

assertTrue("", a.xxx() && b.yyy() && c.zzz())

0reactions

kcooneycommented, May 28, 2015

We tend to avoid APIs that require method chaining (other than builders).

It is extremely challenging to write an expressive, extensible and easy to use assertion API, and what makes a good assertion API is a matter of taste. If that kind of API is something you like, I suggest an assertion framework like Truth, Fest or Hamcrest.

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