public function testCanSpecifyQueryAggregator() { $b = new PostBody(); $b->setField('foo', ['baz', 'bar']); $this->assertEquals('foo%5B0%5D=baz&foo%5B1%5D=bar', (string) $b); $b = new PostBody(); $b->setField('foo', ['baz', 'bar']); $agg = Query::duplicateAggregator(); $b->setAggregator($agg); $this->assertEquals('foo=baz&foo=bar', (string) $b); }