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ScalaTest Spec for 20120513 Lasdan Competition
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import collection.mutable.Map | |
class MultiMap[K,V] { | |
var _internal = Map[K,List[V]]() | |
def apply(key : K) = _internal(key) | |
def put(key:K,value:V) = update(key,value) | |
def update(key: K,value : V) = if (_internal.contains(key)) { | |
_internal(key) = _internal(key) ::: value :: Nil | |
} else { | |
_internal(key) = value :: Nil | |
} | |
def keySet() = _internal.keySet | |
} | |
val mmap = new MultiMap[String,String]() | |
val key = "a-Key"; | |
mmap.put(key,"A"); | |
//mmap(key) = "A"; | |
assert( mmap(key)(0) == "A" ) | |
mmap(key) = "B" | |
assert( mmap(key)(1) == "B") | |
assert( mmap(key) == List("A","B")) | |
mmap(key) = "B" | |
assert( mmap(key) == List("A","B","B")) | |
assert( mmap.keySet() == Set(key)) |
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package pis.chap22.multimap | |
import org.junit.runner.RunWith | |
import org.scalatest.Spec | |
import org.scalatest.junit.JUnitRunner | |
@RunWith(classOf[JUnitRunner]) | |
class LasMultiMapSpec extends Spec { | |
describe("정의한 LasDan MultiMap의 기본 동작을 확인한다") { | |
it ("기본 동작") { | |
val mmap = new LasMultiMap[String,String](); | |
val key = "a-Key" | |
mmap.put(key,"A"); | |
mmap(key) = "A"; | |
assert( mmap(key)(0) == "A" ) | |
mmap(key) = "B" | |
assert( mmap(key)(1) == "B") | |
assert( mmap(key) == List("A","B")) | |
mmap(key) = "B" | |
assert( mmap(key) == List("A","B","B")) | |
assert( mmap.keySet() == Set(key)) | |
} | |
} | |
} |
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