check-float.0rt

/* -----------------------------------------------------------------------------
Copyright 2023 Kevin P. Barry

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
----------------------------------------------------------------------------- */

// Author: Kevin P. Barry [ta0kira@gmail.com]

testcase "CheckFloat success" {
  success TestChecker
}

unittest almostEquals {
  \ 1.230000000001 `Matches:with` CheckFloat:almostEquals(1.23)
  \ 1.229999999999 `Matches:with` CheckFloat:almostEquals(1.23)
  \ -1.230000000001 `Matches:with` CheckFloat:almostEquals(-1.23)
  \ -1.229999999999 `Matches:with` CheckFloat:almostEquals(-1.23)
  \ 1000000001.0 `Matches:with` CheckFloat:almostEquals(1000000002.0)
}

unittest closeTo {
  \ 1.24 `Matches:with` CheckFloat:closeTo(1.23, epsilon: 0.011)
  \ 1.22 `Matches:with` CheckFloat:closeTo(1.23, epsilon: 0.011)
  \ -1.24 `Matches:with` CheckFloat:closeTo(-1.23, epsilon: 0.011)
  \ -1.22 `Matches:with` CheckFloat:closeTo(-1.23, epsilon: 0.011)
}


testcase "CheckFloat:almostEquals failure empty" {
  failure TestChecker
  require "empty .+1.23"
}

unittest test {
  \ empty `Matches:with` CheckFloat:almostEquals(1.23)
}


testcase "CheckFloat:almostEquals failure above" {
  failure TestChecker
  require "1.24.+ 1.23"
}

unittest test {
  \ 1.24 `Matches:with` CheckFloat:almostEquals(1.23)
}


testcase "CheckFloat:almostEquals failure expect 0" {
  failure TestChecker
  require "not within"
}

unittest test {
  \ 0.000000001 `Matches:with` CheckFloat:almostEquals(0.0)
}


testcase "CheckFloat:almostEquals failure below" {
  failure TestChecker
  require "1.22.+ 1.23"
}

unittest test {
  \ 1.22 `Matches:with` CheckFloat:almostEquals(1.23)
}


testcase "CheckFloat:closeTo failure empty" {
  failure TestChecker
  require "empty .+0.001 .+1.23"
}

unittest test {
  \ empty `Matches:with` CheckFloat:closeTo(1.23, epsilon: 0.001)
}


testcase "CheckFloat:closeTo failure above" {
  failure TestChecker
  require "1.24.+ 0.001.+ 1.23"
}

unittest test {
  \ 1.24 `Matches:with` CheckFloat:closeTo(1.23, epsilon: 0.001)
}


testcase "CheckFloat:closeTo failure below" {
  failure TestChecker
  require "1.22.+ 0.001.+ 1.23"
}

unittest test {
  \ 1.22 `Matches:with` CheckFloat:closeTo(1.23, epsilon: 0.001)
}