In also provides extra test utilities.

它还提供了一些额外的测试实用工具。

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These test utilities are actually rather useful when you need to debug some subtle error.

实际上，当您需要调试一些细微的错误时，这些测试实用工具更有用。

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So far, this article has discussed Boost test utilities with test suites that have no hierarchy.

到目前为止，本文已经讨论了Boost测试实用程序和没有层次结构的测试套件。

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The U.S. Department of Energy has approved billions of dollars to technology developers such as Silver Spring and a bunch of utilities to test and deploy smart grid technologies across the country.

FORBES: Silver Spring Networks Files IPO For Smart Grid Tech

While municipal water utilities are required to provide public reports of test results, bottled-water makers are not. (On the other hand, well water, which is found in many rural areas, isn't regulated as water provided by towns and cities is.) So although you may fork over a pretty penny for bottled water, that doesn't mean it's any better than what's coming out of your faucet.

CNN: Is your bottled water safe?

Utilities are notorious for taking a long time to test new technologies before making a purchase decision.

FORBES: A Software Startup Helps Utilities Decode Smart Meter Data