refactor: LottoResult -> MatchResult 로 명칭을 바꾸었다.

src/main/kotlin/lotto/domain/Lotto.kt

@@ -6,17 +6,19 @@ class Lotto(
     val numberOfLines: Int
         get() = lines.size
 
-    fun match(winner: WinningLine): LottoResult {
+    fun match(winner: WinningLine): MatchResult {
         val rankToCount =
             lines
                 .groupBy { it.match(winner) }
                 .mapValues { (_, value) -> value.size }
-        return LottoResult.from(rankToCount)
+        return MatchResult.from(rankToCount)
     }
 
     fun merge(lotto: Lotto): Lotto = Lotto(lines + lotto.lines)
 
     companion object {
         fun from(vararg lines: LottoLine): Lotto = Lotto(lines.toList())
+
+        fun from(lines: List<List<Int>>): Lotto = Lotto(lines.map(LottoLine::from))
     }
 }

src/main/kotlin/lotto/domain/MatchResult.kt

@@ -0,0 +1,17 @@
+package lotto.domain
+
+import java.util.EnumMap
+
+data class MatchResult(
+    private val rankToCount: EnumMap<Rank, Int>,
+) {
+    val totalPrize: Int = rankToCount.entries.sumOf { it.key.prize * it.value }
+
+    fun get(rank: Rank): Int = rankToCount.getOrDefault(rank, 0)
+
+    companion object {
+        fun from(rankToCount: Map<Rank, Int>): MatchResult = MatchResult(EnumMap(rankToCount))
+
+        fun of(vararg counts: Pair<Rank, Int>): MatchResult = from(counts.toMap())
+    }
+}

src/test/kotlin/lotto/domain/LottoTest.kt

@@ -33,7 +33,7 @@ class LottoTest {
         val result = lotto.match(winner)
 
         val expected =
-            LottoResult.of(
+            MatchResult.of(
                 Rank.FIRST to 1,
                 Rank.SECOND to 1,
                 Rank.THIRD to 1,

src/test/kotlin/lotto/domain/MatchResultTest.kt

@@ -0,0 +1,19 @@
+package lotto.domain
+
+import io.kotest.matchers.shouldBe
+import org.junit.jupiter.api.Test
+
+@Suppress("NonAsciiCharacters")
+class MatchResultTest {
+    @Test
+    fun `총상금을 계산한다`() {
+        val result =
+            MatchResult.of(
+                Rank.FOURTH to 1,
+                Rank.FIFTH to 1,
+                Rank.MISS to 12,
+            )
+
+        result.totalPrize shouldBe 55_000
+    }
+}