public function testFocusLightColor() { $style3d = new Style3d(); $this->assertNull($style3d->getFocusLightColor()); $this->assertSame($style3d, $style3d->setFocusLightColor("test-focuslightcolor")); $this->assertEquals("test-focuslightcolor", $style3d->getFocusLightColor()); }