[#54] StreamExHeadTailTest: test for mapFirst/forEachOrTail

amaembo · Jan 18, 2016 · cab639c · cab639c
1 parent 0af7701
commit cab639c
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/test/java/one/util/streamex/StreamExHeadTailTest.java b/src/test/java/one/util/streamex/StreamExHeadTailTest.java
@@ -476,5 +476,10 @@ public void testHeadTailSimple() {
         streamEx(() -> StreamEx.of("a", "b", "c", "d"), s -> assertEquals(Collections.singletonMap("a", asList("b",
             "c", "d")), s.get().headTail((x, str) -> str.mapToEntry(e -> x, e -> e)).mapToEntry(Entry::getKey,
             Entry::getValue).grouping()));
+        assertEquals(asList("b:c", "c:d"), StreamEx.of(":", "b", "c", "d").headTail(
+            (head, tail) -> tail.pairMap((left, right) -> left + head + right)).toList());
+        assertEquals(asList("b:", "c", "d"), StreamEx.of(":", "b", "c", "d").headTail(
+            (head, tail) -> tail.mapFirst(first -> first + head)).toList());
+
     }
 }