# 其它

其它多个类或模块，统一在此列举。

## Kernel

很常用的方法：

```
describe
```

## Object

常用的方法：

```
stub
```

保存调用此方法的值，下次再调用此方法，直接使用该值，不用重新计算生成。

举例：

```ruby
DateTime.now
# => 2014-11-17T22:16:15+08:00

DateTime.stub :now, (Date.today.to_date - 14) do
  puts DateTime.now
  # ...
  puts DateTime.now
end

# => 2014-11-03
# => 2014-11-03
```

## Benchmark

已经 mixed 进 TestCase.

类方法：

```
bench_exp
bench_linear
bench_range
```

实例方法：

```
assert_performance
assert_performance_constant
assert_performance_exponential
assert_performance_linear
assert_performance_logarithmic
assert_performance_power

fit_error
fit_exponential
fit_linear
fit_logarithmic
fit_power

sigma

validation_for_fit
```

## Bench Spec

类方法：

```
bench
bench_performance_constant
bench_performance_exponential
bench_performance_linear
bench_range
```

## Abstract Reporter

实例方法：

```
passed?

record
report

start
```

## Assertion

实例方法：

```
location
```