From 6491018c21308b5e85544f7c219243b0b4c47e57 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luk=C3=A1=C5=A1=20Mlad=C3=BD?= <mladylukas@gmail.com>
Date: Wed, 8 Apr 2015 14:14:45 +0200
Subject: [PATCH] Add failing tests that document ES 6 generators bug

---
 .../regenerator/destructuring/exec.js         | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/test/core/fixtures/transformation/regenerator/destructuring/exec.js b/test/core/fixtures/transformation/regenerator/destructuring/exec.js
index 74452f773a..32890be3aa 100644
--- a/test/core/fixtures/transformation/regenerator/destructuring/exec.js
+++ b/test/core/fixtures/transformation/regenerator/destructuring/exec.js
@@ -11,3 +11,41 @@ function* foo2({ bar = 0 }) {
 
 assert.equal(foo2({ bar: undefined }).next().value, 0);
 assert.equal(foo2({ bar: 3 }).next().value, 3);
+
+function* foo3() {
+  loop:
+    while(true) {
+      // Changing "let" to "var" makes the tests pass.
+      let { what, value } = yield "iteration";
+
+      switch(what) {
+        case "one":
+          // Removing these 5 lines makes the tests pass.
+          if(value === 1) {
+            break;
+          } else if(value === 2) {
+            break;
+          }
+
+        case "two":
+          // Removing these 3 lines makes the tests pass.
+          ["a", "b"].map(function(v) {
+            return value + v;
+          });
+
+          break;
+
+        case "three":
+          break loop;
+      }
+    }
+}
+
+var gen3 = foo3();
+
+assert.equal(gen3.next().value, "iteration");
+assert.equal(gen3.next({what: "one", value: 3}).done, false);
+assert.equal(gen3.next({what: "one", value: 2}).done, false);
+assert.equal(gen3.next({what: "one", value: 1}).done, false);
+assert.equal(gen3.next({what: "two", value: "sometext"}).done, false);
+assert.equal(gen3.next({what: "three"}).done, true);