The standard PHPUnit assertion methods such as _``++assertEquals++``_, expect the first argument to be the expected value and the second argument to be the actual value. Swap them, and your test will still have the same outcome (succeed/fail when it should) but the error messages will be confusing.


This rule raises an issue when the second argument to an assertions library method is a hard-coded value and the first argument is not.

== Noncompliant Code Example

[source,php]
----
self::assertEquals($runner.getExitCode(), 0, "Unexpected exit code"); // Noncompliant; Failed asserting that 0 matches expected 3. Expected :3 Actual :0.
----

== Compliant Solution

[source,php]
----
self::assertEquals(0, $runner.getExitCode(), "Unexpected exit code");
----

ifdef::env-github,rspecator-view[]

'''
== Implementation Specification
(visible only on this page)

include::../message.adoc[]

include::../highlighting.adoc[]

'''
== Comments And Links
(visible only on this page)

include::../comments-and-links.adoc[]
endif::env-github,rspecator-view[]
