Generic/DisallowYodaConditions: improve code coverage #465
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jrfnl
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May 2, 2024
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@rodrigoprimo Thanks for this PR. I've left a few small comments inline to have a look at, but generally speaking, this is looking all good.
I've not done a detailed test vs sniff review as this is known to be a sniff with numerous bugs still to be fixed, so most issues are probably already known and/or will be found when addressing the known issues.
Not something which should hold back this PR.
src/Standards/Generic/Sniffs/ControlStructures/DisallowYodaConditionsSniff.php
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* Remove unused variable. * Fix typo in code comment. * Remove incorrect code comment.
Includes removing two unreachable conditions The first condition is unreachable because PHPCS will never call DisallowYodaConditionsSniff::process() if there is no non-empty token before a comparison token. Even if the file contains a syntax error, there must be at least a PHP opening tag before the comparison token for the method to be called. The second condition is unreachable because at this point in the code there will always be at least two non-empty tokens before the comparison token. If there is only one, it must be a PHP opening tag and, in this case, the method will bail before reaching the code that sets the `$prevIndex` variable. This commit also documents why a certain line is uncovered by tests - and cannot be covered, nor can it be removed as external sniffs may call `DisallowYodaConditionsSniff::isArrayStatic()` directly.
This commit renames a variable to use a better name that actually matches what the variable contains. The previous name was misleading as the variable did not contain the index of the closing parenthesis.
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jrfnl
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May 13, 2024
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I've rebased the PR without changes (other than re-organizing the commits, but no changes to the code). Merging once the build has passed. |
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Description
This PR improves code coverage for the Generic.ControlStructures.DisallowYodaConditions sniff. It adds a few tests for uncovered lines and documents using tests a few comparison operators that this sniff listens for that were not part of the tests before.
Besides that, this PR removes an unused variable, fixes a typo in a code comment, removes two unreachable variables, and renames a variable to make it more clear what it contains.
It is impossible to add code coverage for the line below using the current test framework and we should not remove it as external sniffs could be using the
DisallowYodaConditionsSniff::isArrayStatic()and relying on the current behavior (returningtrueif the passed token index is not an array):PHP_CodeSniffer/src/Standards/Generic/Sniffs/ControlStructures/DisallowYodaConditionsSniff.php
Line 152 in 30b3148
I left a comment documenting that the line cannot be covered by tests but cannot be removed as well.
I considered using
// @codeCoverageIgnoreor// @codeCoverageIgnoreStartand// @codeCoverageIgnoreEnd, but that is not possible as well as those annotations trigger different sniff errors for the coding standard used by PHPCS (Squiz.Commenting.PostStatementComment.FoundandSquiz.Commenting.InlineComment.InvalidEndChar). I will open a separate issue for this.Related issues/external references
Part of #146
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