Добавить production-каталог опасностей

app/src/test/java/com/projectsacrifice/game/LevelPageTest.java

@@ -0,0 +1,33 @@
+package com.projectsacrifice.game;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
+public final class LevelPageTest {
+    @Test
+    public void fourteenLevelsUseTwoBoundedTenCardPages() {
+        LevelPage page = new LevelPage(14, 10);
+
+        assertEquals(2, page.pageCount());
+        assertEquals(0, page.firstIndex());
+        assertEquals(10, page.endExclusive());
+        assertFalse(page.hasPrevious());
+        assertTrue(page.hasNext());
+
+        page.next();
+        assertEquals(10, page.firstIndex());
+        assertEquals(14, page.endExclusive());
+        assertTrue(page.hasPrevious());
+        assertFalse(page.hasNext());
+
+        page.next();
+        assertEquals(1, page.pageIndex());
+        page.selectIndex(3);
+        assertEquals(0, page.pageIndex());
+        page.selectIndex(13);
+        assertEquals(1, page.pageIndex());
+    }
+}