diff --git a/tests/src/Unit/HarTest.php b/tests/src/Unit/HarTest.php
index 9a9b9a76..e10d0507 100644
--- a/tests/src/Unit/HarTest.php
+++ b/tests/src/Unit/HarTest.php
@@ -59,6 +59,23 @@ public function testSplitLogEntries(): void
         }
     }
 
+    public function testSetLog(): void
+    {
+        $creator = new \Deviantintegral\Har\Creator();
+        $creator->setName('TestCreator');
+        $creator->setVersion('1.0');
+
+        $log = (new Log())
+            ->setVersion('1.2')
+            ->setCreator($creator)
+            ->setEntries([]);
+
+        $har = (new Har())->setLog($log);
+
+        $this->assertSame($log, $har->getLog());
+        $this->assertEquals('1.2', $har->getLog()->getVersion());
+    }
+
     public function testCloneBrowserIsDeep(): void
     {
         $repository = $this->getHarFileRepository();
diff --git a/tests/src/Unit/ReadmeTest.php b/tests/src/Unit/ReadmeTest.php
index af1dc06f..216b9ed4 100644
--- a/tests/src/Unit/ReadmeTest.php
+++ b/tests/src/Unit/ReadmeTest.php
@@ -19,6 +19,10 @@ class ReadmeTest extends TestCase
 {
     public function testExample(): void
     {
+        if (!getenv('FUNCTIONAL_TESTS')) {
+            $this->markTestSkipped('Skipping functional test. Set FUNCTIONAL_TESTS=1 to run.');
+        }
+
         // Initialize a repository of HAR files, with IDs being the file names.
         $repository = new HarFileRepository(__DIR__.'/../../fixtures');