Add DropProvider and dao for monster drops

src/test/java/database/drop/DropProviderTest.java

@@ -0,0 +1,79 @@
+package database.drop;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import server.life.MonsterDropEntry;
+
+import java.util.Collections;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.Mockito.*;
+
+class DropProviderTest {
+
+    @Mock
+    private DropDao dropDao;
+
+    private DropProvider dropProvider;
+
+    @BeforeEach
+    void reset() {
+        MockitoAnnotations.openMocks(this);
+        this.dropProvider = new DropProvider(dropDao);
+    }
+
+    @Test
+    void getMonsterDropEntries_noDrops() {
+        when(dropDao.getMonsterDrops(anyInt())).thenReturn(Collections.emptyList());
+
+        List<MonsterDropEntry> dropEntries = dropProvider.getMonsterDropEntries(489340);
+
+        assertTrue(dropEntries.isEmpty());
+    }
+
+    @Test
+    void getMonsterDropEntries() {
+        MonsterDrop snailShellDrop = snailShellDrop();
+        when(dropDao.getMonsterDrops(anyInt())).thenReturn(List.of(snailShellDrop));
+
+        List<MonsterDropEntry> dropEntries = dropProvider.getMonsterDropEntries(100100);
+
+        assertEquals(1, dropEntries.size());
+        MonsterDropEntry dropEntry = dropEntries.get(0);
+        assertEquals(snailShellDrop.itemId(), dropEntry.itemId);
+        assertEquals(snailShellDrop.minQuantity(), dropEntry.Minimum);
+        assertEquals(snailShellDrop.maxQuantity(), dropEntry.Maximum);
+        assertEquals(snailShellDrop.chance(), dropEntry.chance);
+        assertEquals(0, dropEntry.questid);
+    }
+
+    @Test
+    void getCachedMonsterDropEntries() {
+        when(dropDao.getMonsterDrops(anyInt())).thenReturn(List.of(snailShellDrop()));
+        int monsterId = 100100;
+
+        List<MonsterDropEntry> dropEntries1 = dropProvider.getMonsterDropEntries(monsterId);
+        List<MonsterDropEntry> dropEntries2 = dropProvider.getMonsterDropEntries(monsterId);
+
+        assertEquals(1, dropEntries1.size());
+        assertEquals(1, dropEntries2.size());
+        MonsterDropEntry dropEntry1 = dropEntries1.get(0);
+        MonsterDropEntry dropEntry2 = dropEntries2.get(0);
+        assertEquals(dropEntry1.itemId, dropEntry2.itemId);
+        assertEquals(dropEntry1.Minimum, dropEntry2.Minimum);
+        assertEquals(dropEntry1.Maximum, dropEntry2.Maximum);
+        assertEquals(dropEntry1.questid, dropEntry2.questid);
+        assertEquals(dropEntry1.chance, dropEntry2.chance);
+        verify(dropDao, times(1)).getMonsterDrops(anyInt());
+    }
+
+    private MonsterDrop snailShellDrop() {
+        return new MonsterDrop(100100, 4000019, 1, 2, null, 600_000);
+    }
+
+}