fix: Throw invalid version exception (#59)

We current have the following adapters:

- Codeception
- PhpSpec
- PHPUnit
- PHPStan

Of all of them, only Codeception has this behaviour of swallowing the
exception to display `unknown` instead of throwing `InvalidVersion`.

I am not certain it is correct, but I prefer it to be wrong and find
that out and fix it everywhere than having one adpater behaving
differently.

Author: theofidry

.gitignore

@@ -1,4 +1,5 @@
 !/.tools/.gitkeep
+!/tests/e2e/*/var/.gitkeep
 .phpunit.result.cache
 /.composer/
 /.idea
@@ -9,6 +10,5 @@
 /tests/**/_generated/
 /tests/**/_output/
 /tests/e2e/*/var/
-!/tests/e2e/*/var/.gitkeep
 /var/
 /vendor/

src/CodeceptionAdapter.php

@@ -43,7 +43,6 @@
 use function explode;
 use function implode;
 use Infection\AbstractTestFramework\Coverage\TestLocation;
-use Infection\AbstractTestFramework\InvalidVersion;
 use Infection\AbstractTestFramework\MemoryUsageAware;
 use Infection\AbstractTestFramework\TestFrameworkAdapter;
 use Infection\StreamWrapper\IncludeInterceptor;
@@ -235,15 +234,7 @@ public function getVersion(): string
         $process = new Process($testFrameworkVersionExecutable);
         $process->mustRun();
 
-        try {
-            $version = $this->versionParser->parse($process->getOutput());
-        } catch (InvalidVersion) {
-            $version = 'unknown';
-        }
-
-        $this->cachedVersion = $version;
-
-        return $this->cachedVersion;
+        return $this->cachedVersion ??= $this->versionParser->parse($process->getOutput());
     }
 
     public function getInitialTestsFailRecommendations(string $commandLine): string
@@ -265,12 +256,11 @@ private static function getDisableCoveragePhpOptions(
 
     private static function isDisableCoveragePhpOptionSupported(string $version): bool
     {
-        return $version !== 'unknown'
-            && version_compare(
-                $version,
-                self::MIN_VERSION_DISABLE_COVERAGE_PHP,
-                '>=',
-            );
+        return version_compare(
+            $version,
+            self::MIN_VERSION_DISABLE_COVERAGE_PHP,
+            '>=',
+        );
     }
 
     private function getInterceptorFileContent(string $interceptorPath, string $originalFilePath, string $mutatedFilePath): string