36 lines
2.4 KiB
Plaintext
36 lines
2.4 KiB
Plaintext
AssertJ assertions taking ``++Consumer++`` objects as arguments are expected to contain "requirements", which should themselves be expressed as assertions. This concerns the following methods: http://joel-costigliola.github.io/assertj/core-8/api/org/assertj/core/api/AbstractIterableAssert.html#allSatisfy-java.util.function.Consumer-[allSatisfy], http://joel-costigliola.github.io/assertj/core-8/api/org/assertj/core/api/AbstractIterableAssert.html#anySatisfy-java.util.function.Consumer-[anySatisfy], http://joel-costigliola.github.io/assertj/core-8/api/org/assertj/core/api/AbstractIterableAssert.html#hasOnlyOneElementSatisfying-java.util.function.Consumer-[hasOnlyOneElementSatisfying], https://tinyurl.com/yxnzt6pj[isInstanceOfSatisfying], http://joel-costigliola.github.io/assertj/core-8/api/org/assertj/core/api/AbstractIterableAssert.html#noneSatisfy-java.util.function.Consumer-[noneSatisfy], http://joel-costigliola.github.io/assertj/core-8/api/org/assertj/core/api/AbstractAssert.html#satisfies-java.util.function.Consumer-[satisfies], http://joel-costigliola.github.io/assertj/core-8/api/org/assertj/core/api/AbstractAssert.html#satisfiesAnyOf-java.util.function.Consumer-java.util.function.Consumer-[satisfiesAnyOf], http://joel-costigliola.github.io/assertj/core-8/api/org/assertj/core/api/AbstractIterableAssert.html#zipSatisfy-java.lang.Iterable-java.util.function.BiConsumer-[zipSatisfy].
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These methods are assuming the ``++Consumer++`` will do the assertions itself. If you do not do any assertion in the ``++Consumer++``, it probably means that you are inadvertently only partially testing your object.
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This rule raises an issue when a ``++Consumer++`` argument of any of the above methods does not contain any assertion.
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== Noncompliant Code Example
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----
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assertThat(myObject).isInstanceOfSatisfying(String.class, s -> "Hello".equals(s)); // Noncompliant - not testing the string value
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assertThat(myObject).satisfies("Hello"::equals); // Noncompliant - not testing the string value
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----
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== Compliant Solution
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----
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assertThat(myObject).isInstanceOfSatisfying(String.class, s -> assertThat(s).isEqualTo("Hello"));
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assertThat(myObject).satisfies(obj -> assertThat(obj).isEqualTo("Hello"));
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----
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ifdef::env-github,rspecator-view[]
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'''
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== Implementation Specification
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(visible only on this page)
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include::message.adoc[]
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include::highlighting.adoc[]
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endif::env-github,rspecator-view[]
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