[test] renaming test/1_stdlib to just test/stdlib

test/stdlib/NSEnumeratorAPI.swift

@@ -0,0 +1,30 @@
+// RUN: %target-run-simple-swift
+// REQUIRES: executable_test
+
+// REQUIRES: objc_interop
+
+import StdlibUnittest
+
+
+import Foundation
+
+var NSEnumeratorAPI = TestSuite("NSEnumeratorAPI")
+
+NSEnumeratorAPI.test("Sequence") {
+  let result = NSDictionary().keyEnumerator()
+  expectSequenceType(result)
+}
+
+NSEnumeratorAPI.test("keyEnumerator") {
+  let result = [1 as NSNumber: "one", 2 as NSNumber: "two"]
+  expectEqualsUnordered(
+    [1, 2], NSDictionary(dictionary: result as [AnyHashable: Any]).keyEnumerator()) {
+      switch ($0 as! Int, $1 as! Int) {
+      case let (x, y) where x == y: return .eq
+      case let (x, y) where x < y: return .lt
+      case _: return .gt
+      }
+    }
+}
+
+runAllTests()