Awaitatility, polling until condition is met

Question

i'm trying to use awaitatility for some testing purposes.

This piece of code im trying to use is giving me problems:

    await()
            .atLeast(Duration.ONE_HUNDRED_MILLISECONDS)
            .atMost(Duration.FIVE_SECONDS)
            .with()
            .pollInterval(Duration.ONE_HUNDRED_MILLISECONDS)
            .until(result.contains("banana"));

Result is a string variable in which i save some remote system output earlier in the code. But when i try to use it like this, i get the following error :

"until (java.util.concurrent.Callable) in ConditionFactory cannot be applied to (boolean)"

What is the proper way to use the library? I want too see if certain data/text string has managed to get retrieved from my remote system before i do a bunch of asserts on the data fetched.

score 3 · Answer 1 · answered Oct 02 '19 at 13:04

3

You need to give until a callable. ie

await().until(() -> result.contains("banana"));

answered Oct 02 '19 at 13:04

Tom Squires

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Malt · Accepted Answer · 2019-10-02T13:06:17.947

1

until needs to take a function that returns a boolean (i.e. a Callable<Boolean>), not just a boolean.

result.contains("banana") is a method call that returns a boolean. That means that .until(result.contains("banana")) is evaluated to .until(false) or .until(true)

edited Oct 02 '19 at 13:06

answered Oct 02 '19 at 12:58

Malt

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Thanks! Changed this now to this: .until(new Callable() { @Override public Boolean call() throws Exception { return (result).contains("banana"); } }); And it seems to work fine :) – CobraKai Oct 02 '19 at 13:04
@CobraKai Glad to hear. – Malt Oct 02 '19 at 13:04

Awaitatility, polling until condition is met

2 Answers2