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AppFunctTests.scala
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/*
* Copyright 2012 Latterfrosken Software Development Limited
*
* 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.
*/
import org.lafros.scala.Checking
import org.scalatest.{FunSuite, matchers}
import matchers.ShouldMatchers
class AppFunctTests extends FunSuite with ShouldMatchers {
abstract class Spec {
this: Checking =>
type A
type C = Checked[A, R]
def f(a1: A)(a2: A): A
def a1: C
def a2: C
def res1 = ff(f) <*> a1 <*> a2
def res2 = fs(f) <*> a1 <*> a2
// NB defs instead of vals since depend on abstract members (which might get impl'ted in
// terms of vals, which would otherwise get initialised too late)
}
abstract class Case extends Spec with Checking {
type A = Int
type R = String
def f(a1: A)(a2: A) = a1*a2
}
val a1Msg = "Couldn't obtain a1!"
val a2Msg = "Couldn't obtain a2!"
test("a1, a2 both Okay") {
new Case {
def a1 = Okay(2)
def a2 = Okay(3)
res1 should equal(Okay(6))
res2 should equal(Okay(6))
}
}
test("a1 Okay, a2 unobtainable") {
new Case {
def a1 = Okay(2)
def a2 = Reason(a2Msg)
res1 should equal(Reason(a2Msg))
res2 should equal(Reason(Iterable(a2Msg)))
}
}
test("a1 unobtainable, a2 Okay") {
new Case {
def a1 = Reason(a1Msg)
def a2 = Okay(3)
res1 should equal(Reason(a1Msg))
res2 should equal(Reason(Iterable(a1Msg)))
}
}
test("a1, a2 both unobtainable") {
new Case {
def a1 = Reason(a1Msg)
def a2 = Reason(a2Msg)
res1 should equal(Reason(a1Msg))
res2 should equal(Reason(Iterable(a1Msg, a2Msg)))
}
}
}