assert_Number.litcoffee – O2 Platform by o2platform

¶

dependencies
```
assert = require 'assert'
```

Note: the @ represents this

@.assert_Bigger_Than value

twin methods: assert_Above, assert_Is_Bigger

Number::assert_Bigger_Than = (value)->
  value.assert_Is_Number()
  (@ > value).assert_Is_True("#{@} was not bigger than #{value}")

Number::assert_Above          = Number::assert_Bigger_Than
Number::assert_Is_Bigger_Than = Number::assert_Bigger_Than

@.assert_In_Between

asserts that @ is in between min and max

Number::assert_In_Between = (min,max )->
  message = "Expected #{@} to be between #{min} and #{max}"
  @.in_Between(min,max).assert_Is_True(message)
  @

@.assert_Is_Equal_To target

Number::assert_Is_Equal_To   = (target)->
  source    = @
  assert.equal(source, target)
  @

@.assert_Is_Not_Equal_To target

Number::assert_Is_Not_Equal_To = (target, message)->
  source    = @
  assert.notEqual(source, target, message)
  @

¶

@.assert_Is_Number

When checking if is @ is a number, it seems that the only thing we can do it to check if @ is NaN (which should not be accepetd)

See see issue https://github.com/o2platform/fluentnode/issues/57

note that Number('').assert_Is_Number().assert_Is 0
```
Number::assert_Is_Number = ()->
  @.str().assert_Is_Not 'NaN' , 'The provided number was a NaN (Not an Number)'
  @
```

@.assert_Is target

Number::assert_Is = Number::assert_Is_Equal_To

@.assert_Is_Not target

Number::assert_Is_Not = Number::assert_Is_Not_Equal_To

assert_Smaller_Than value

Number::assert_Smaller_Than = (value)->
  (@ < value).assert_Is_True()