0.8.4: stadlib in Lyng! added universal Iterable functions

lynglib/src/commonTest/kotlin/CoroutinesTest.kt

@@ -29,7 +29,7 @@ class TestCoroutines {
             val done = CompletableDeferred()
             
             launch { 
-                delay(10)
+                delay(30)
                 done.complete("ok")
             }
             
@@ -124,7 +124,6 @@ class TestCoroutines {
         """.trimIndent())
     }
 
-
     @Test
     fun testFilterFlow() = runTest {
         eval("""

lynglib/src/commonTest/kotlin/StdlibTest.kt

@@ -0,0 +1,65 @@
+import kotlinx.coroutines.test.runTest
+import net.sergeych.lyng.eval
+import kotlin.test.Test
+
+class StdlibTest {
+    @Test
+    fun testIterableFilter() = runTest {
+        eval("""
+            assertEquals([1,3,5,7], (1..8).filter{ it % 2 == 1 }.toList() )
+            assertEquals([2,4,6,8], (1..8).filter{ it % 2 == 0 }.toList() )
+        """.trimIndent())
+
+    }
+
+    @Test
+    fun testFirstLast() = runTest {
+        eval("""
+            assertEquals(1, (1..8).first )
+            assertEquals(8, (1..8).last )
+        """.trimIndent())
+    }
+
+    @Test
+    fun testTake() = runTest {
+        eval("""
+            assertEquals([1,2,3], (1..8).take(3).toList() )
+            assertEquals([7,8], (1..8).takeLast(2).toList() )
+        """.trimIndent())
+    }
+
+    @Test
+    fun testRingBuffer() = runTest {
+        eval("""
+            val r = RingBuffer(3)
+            assert( r is RingBuffer )
+            assertEquals(0, r.size)
+            assertEquals(3, r.capacity)
+            
+            r += 10
+            assertEquals(1, r.size)
+            assertEquals(10, r.first)
+            
+            r += 20
+            assertEquals(2, r.size)
+            assertEquals( [10, 20], r.toList() )
+            
+            r += 30
+            assertEquals(3, r.size)
+            assertEquals( [10, 20, 30], r.toList() )
+            
+            r += 40
+            assertEquals(3, r.size)
+            assertEquals( [20, 30, 40], r.toList() )
+            
+        """.trimIndent())
+    }
+
+    @Test
+    fun testDrop() = runTest {
+        eval("""
+            assertEquals([7,8], (1..8).drop(6).toList() )
+            assertEquals([1,2], (1..8).dropLast(6).toList() )
+        """.trimIndent())
+    }
+}