assertIsString($js); // 关键口径:复制后按钮短暂变为“已复制/复制失败”,并 disable $this->assertStringContainsString('markCopied', $js); $this->assertStringContainsString("'已复制'", $js); $this->assertStringContainsString("'复制失败'", $js); $this->assertStringContainsString('btn.disabled = true', $js); } }