An important note for developers of Ruby IDEs or everyone using custom test-runners.

对于Ruby IDE的开发者以及使用custom test - runners的人们来说，需要注意以下事项。

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You can create a custom test condition to test a behavior that the default test conditions cannot verify.

您可以建立一个自订的测试条件，来测试预设的测试条件无法验证的行为。

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You can create a custom test condition to test for any condition that you cannot verify by using the default test conditions.

对于无法用默认测试条件验证的任何条件，都可以创建自定义测试条件来进行测试。

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Customers will go to its lab, called Iforce, where engineers will build and test a custom system that users pay for only when they are satisfied.

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Working in my garage, I custom built a mosquito test chamber, created artificial perspiration with varied concentrations of ingredients, and after innumerable hours of testing and analyzing data, was able to discover the role of ammonia in the attraction of mosquitoes to humans.

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After experimenting with more than a dozen different formulations, drying them with custom-made machinery and heating them in ovens to test shelf life, Nektar hit upon a successful recipe that mixes insulin with glycine (an amino acid), citrate (the salt of an organic acid found in humans) and mannitol (a sugar used in intravenous products).

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