我们将测试一个非常简单的组件，该组件验证英国的邮政编码，并返回与该邮政编码对应的地址的详细信息。

We will be testing a very simple component that validates a UK postcode and returns details of the addresses that correspond to that postcode.

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在英国，邮政编码和陆军测量局的地图数据目前都无法免费用于商业目的，这一点在企业家和社会活动家中饱受诟病，怨声载道。

In Britain postcodes and Ordnance Survey map data at present cannot be freely used for commercial purposes-a source of loud complaints from businesses and activists.

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它包括一个邮政编码，可加以识别和约束，比方说，不同于英国的邮政编码。

It has a zip code, which can be recognized and constrained as being, say, different from a United Kingdom postal code.

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