Tester: added option --coverage

Tester/Framework/Environment.php

@@ -21,6 +21,9 @@ class Environment
 	/** Test is runned by Runner */
 	const RUNNER = 'NETTE_TESTER_RUNNER';
 
+	/** Code coverage file */
+	const COVERAGE = 'NETTE_TESTER_COVERAGE';
+
 
 	/** @var bool  used for debugging Tester itself */
 	public static $debugMode = TRUE;
@@ -68,6 +71,10 @@ class_exists('Tester\Assert');
 			}
 		});
 
+		if (getenv(self::COVERAGE)) {
+			CodeCoverage\Collector::start(getenv(self::COVERAGE));
+		}
+
 		ob_start(function($s) {
 			return Environment::$useColors ? $s : Dumper::removeColors($s);
 		}, PHP_VERSION_ID < 50400 ? 2 : 1);

Tester/tester.php

@@ -52,6 +52,7 @@
     -i | --info          Show tests environment info and exit.
     --setup <path>       Script for runner setup.
     --colors [1|0]       Enable or disable colors.
+    --coverage <path>    Generate code coverage report to file.
     -h | --help          This help.
 
 XX
@@ -103,6 +104,17 @@
 	exit;
 }
 
+if ($options['--coverage']) {
+	if (!$php->hasXdebug()) {
+		throw new Exception("Code coverage functionality requires Xdebug extension (used {$php->getCommandLine()})");
+	}
+	file_put_contents($options['--coverage'], '');
+	$coverageFile = realpath($options['--coverage']);
+	putenv(Tester\Environment::COVERAGE . '=' . $coverageFile);
+	echo "Code coverage: {$coverageFile}\n";
+}
+
+
 $runner = new Tester\Runner\Runner($php);
 $runner->paths = $options['paths'];
 $runner->threadCount = max(1, (int) $options['-j']);
@@ -129,8 +141,6 @@
 	ob_end_flush();
 }
 
-@unlink(__DIR__ . '/coverage.dat'); // @ - file may not exist
-
 if (!$options['--watch']) {
 	die($runner->run() ? 0 : 1);
 }

tests/bootstrap.php

@@ -3,10 +3,6 @@
 require __DIR__ . '/../Tester/bootstrap.php';
 
 
-if (extension_loaded('xdebug')) {
-	Tester\CodeCoverage\Collector::start(__DIR__ . '/coverage.dat');
-}
-
 date_default_timezone_set('Europe/Prague');