builder = new ArrayConfigBuilder(); } protected function getConfigSink(): ConfigBuilder { return $this->builder; } protected function assertKeyHasValue( string $key, $value ) { $this->assertEquals( $value, $this->builder->build()->get( $key ) ); } public function testBuild() { $this->builder ->set( 'foo', 'bar' ) ->set( 'baz', 'quu' ); $config = $this->builder->build(); $this->assertInstanceOf( IterableConfig::class, $config ); $this->assertSame( 'bar', $config->get( 'foo' ) ); $this->assertSame( 'quu', $config->get( 'baz' ) ); $this->assertSame( [ 'foo', 'baz' ], $config->getNames() ); } }