Verify index expectations for reduceIndexed/reduceRightIndexed

2016-01-28 18:03:33 +03:00
parent 1357c77d0b
commit 4f1418bb72
2 changed files with 36 additions and 0 deletions
@@ -863,6 +863,15 @@ class StringTest {
        // get the 3rd character
        assertEquals('c', arg1("bacfd").reduceIndexed { index, v, c -> if (index == 2) c else v })

+        expect('c') {
+            "ab".reduceIndexed { index, acc, e ->
+                assertEquals(1, index)
+                assertEquals('a', acc)
+                assertEquals('b', e)
+                e + (e - acc)
+            }
+        }
+
        assertTrue(assertFails {
            arg1("").reduceIndexed { index, a, b -> '\n' }
        } is UnsupportedOperationException)
@@ -872,6 +881,15 @@ class StringTest {
        // get the 3rd character
        assertEquals('c', arg1("bacfd").reduceRightIndexed { index, c, v -> if (index == 2) c else v })

+        expect('c') {
+            "ab".reduceRightIndexed { index, e, acc ->
+                assertEquals(0, index)
+                assertEquals('b', acc)
+                assertEquals('a', e)
+                acc + (acc - e)
+            }
+        }
+
        assertTrue(assertFails {
            arg1("").reduceRightIndexed { index, a, b -> '\n' }
        } is UnsupportedOperationException)