Add tests for PHP_CodeCoverage::setCacheTokens().

Author: sebastianbergmann

Tests/PHP/CodeCoverageTest.php

@@ -135,6 +135,26 @@ public function testAppendThrowsExceptionForInvalidArgument()
         $coverage->append(array(), NULL);
     }
 
+    /**
+     * @covers            PHP_CodeCoverage::setCacheTokens
+     * @expectedException InvalidArgumentException
+     */
+    public function testSetCacheTokensThrowsExceptionForInvalidArgument()
+    {
+        $coverage = new PHP_CodeCoverage;
+        $coverage->setCacheTokens(NULL);
+    }
+
+    /**
+     * @covers PHP_CodeCoverage::setCacheTokens
+     */
+    public function testSetCacheTokens()
+    {
+        $coverage = new PHP_CodeCoverage;
+        $coverage->setCacheTokens(TRUE);
+        $this->assertAttributeEquals(TRUE, 'cacheTokens', $coverage);
+    }
+
     /**
      * @covers            PHP_CodeCoverage::setForceCoversAnnotation
      * @expectedException InvalidArgumentException