Merge pull request #3 from robiningelbrecht/fix-divide-by-zero

Fix divide by zero

Author: robiningelbrecht

.github/workflows/ci.yml

@@ -35,6 +35,7 @@ jobs:
       - name: Send test coverage to codecov.io
         uses: codecov/codecov-action@v3
         with:
-          files: clover.xml,!tests/clover.xml,!tests/clover-invalid.xml
+          files: clover.xml,!tests/clover.xml,!tests/clover-invalid.xml,!tests/clover-test-divide-by-zero.xml
           fail_ci_if_error: true # optional (default = false)
           verbose: true # optional (default = false)
+          token: ${{ secrets.CODECOV_TOKEN }}

src/MinCoverage/CoverageMetric.php

@@ -66,9 +66,13 @@ public function getTotalPercentageCoverage(): float
     {
         // https://confluence.atlassian.com/clover/how-are-the-clover-coverage-percentages-calculated-79986990.html
         // TPC = (coveredconditionals + coveredstatements + coveredmethods) / (conditionals + statements + methods)
+        $divideBy = $this->getNumberOfConditionals() + $this->getNumberOfStatements() + $this->getNumberOfMethods();
+        if (0 === $divideBy) {
+            return 0.00;
+        }
 
         return round((($this->getNumberOfCoveredConditionals() + $this->getNumberOfCoveredStatements() + $this->getNumberOfCoveredMethods()) /
-            ($this->getNumberOfConditionals() + $this->getNumberOfStatements() + $this->getNumberOfMethods())) * 100, 2);
+            $divideBy) * 100, 2);
     }
 
     public static function fromCloverXmlNode(\SimpleXMLElement $node, string $forClass): self
@@ -77,15 +81,15 @@ public static function fromCloverXmlNode(\SimpleXMLElement $node, string $forCla
         $attributes = $node->attributes();
 
         return new self(
-            $forClass,
-            (int) $attributes['methods'],
-            (int) $attributes['coveredmethods'],
-            (int) $attributes['statements'],
-            (int) $attributes['coveredstatements'],
-            (int) $attributes['conditionals'],
-            (int) $attributes['coveredconditionals'],
-            (int) $attributes['elements'],
-            (int) $attributes['coveredelements'],
+            forClass: $forClass,
+            numberOfMethods: (int) $attributes['methods'],
+            numberOfCoveredMethods: (int) $attributes['coveredmethods'],
+            numberOfStatements: (int) $attributes['statements'],
+            numberOfCoveredStatements: (int) $attributes['coveredstatements'],
+            numberOfConditionals: (int) $attributes['conditionals'],
+            numberOfCoveredConditionals: (int) $attributes['coveredconditionals'],
+            numberOfTrackedLines: (int) $attributes['elements'],
+            numberOfCoveredLines: (int) $attributes['coveredelements'],
         );
     }
 }

src/PhpUnitExtension.php

@@ -16,9 +16,9 @@ public function bootstrap(
         ParameterCollection $parameters): void
     {
         if (!$subscriber = ApplicationFinishedSubscriber::fromConfigurationAndParameters(
-            $configuration,
-            $parameters,
-            $_SERVER['argv'],
+            configuration: $configuration,
+            parameters: $parameters,
+            args: $_SERVER['argv'],
         )) {
             return;
         }

src/Subscriber/Application/ApplicationFinishedSubscriber.php

@@ -70,9 +70,9 @@ public function notify(Finished $event): void
         }
 
         $results = MinCoverageResult::mapFromRulesAndMetrics(
-            $this->minCoverageRules,
-            $metrics,
-            $metricTotal,
+            minCoverageRules: $this->minCoverageRules,
+            metrics: $metrics,
+            metricTotal: $metricTotal,
         );
         $finalStatus = array_values($results)[0]->getStatus();
 
@@ -125,12 +125,12 @@ public static function fromConfigurationAndParameters(
         }
 
         return new self(
-            $configuration->coverageClover(),
-            $rules,
-            $parameters->has('exitOnLowCoverage') && (int) $parameters->get('exitOnLowCoverage'),
-            $cleanUpCloverXml,
-            new Exitter(),
-            new ConsoleOutput(new \Symfony\Component\Console\Output\ConsoleOutput()),
+            relativePathToCloverXml: $configuration->coverageClover(),
+            minCoverageRules: $rules,
+            exitOnLowCoverage: $parameters->has('exitOnLowCoverage') && (int) $parameters->get('exitOnLowCoverage'),
+            cleanUpCloverXml: $cleanUpCloverXml,
+            exitter: new Exitter(),
+            consoleOutput: new ConsoleOutput(new \Symfony\Component\Console\Output\ConsoleOutput()),
         );
     }
 }