5/27/2023 0 Comments Java reflection nested field![]() ![]() Let's see both options in some examples taken from FilterExamples.java of the assertj-examples project. some operation on a property/field of array/iterable elements.The error message starts with the given description in : expected: but was: Combining filtering and assertions on iterables or arraysįiltering can be done on arrays or iterables. failing assertion, remember to call as() before the assertion, not after !ĪssertThat(frodo.getAge()).as("check %s's age", frodo.getName()).isEqualTo(100) Otherwise it is simply ignored as a failing assertion breaks the following chained calls.Įxample of a failing assertion with a description : TolkienCharacter frodo = new TolkienCharacter("Frodo", 33, HOBBIT) args) but remember to do it before calling the assertion. You can set such a description with as(String description, Object. It is often valuable to describe the assertion performed, especially for boolean assertion where the default error message just complains that it got false instead of true (or vice versa). No special configuration, just start typing assertThat and then invoke completion (Ctrl-Space) twice.ĭescribe your assertion with as(String description, Object.You should see : .Assertions.* in the list of favorites.Go to : Window > Preferences > Java > Editor > Content Assist > Favorites > New Type.We want to start typing asser and let code completion suggest assertThat from AssertJ (and not the one from Hamcrest !). IDE configuration to get assertThat in code completion ![]() Using a custom representation in assertions.Using a custom comparison strategy in assertions.Gather all errors message with soft assertions.Assertions on results of a method call on iterable/array elements.Assertions on extracted properties/fields of iterable/array elements.Combining filtering and assertions on iterables or arrays.Using String assertions on the content of a file.Describe your assertion using as(String description, Object.IDE configuration to directly get assertThat in code completion.AssertJ Core new website! AssertJ Core site has moved to AssertJ Core features highlightĪssertJ has many great features that not everybody is aware of, here are some of them. ![]()
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