Version 3.5.6.

test/mjsunit/harmony/block-let-declaration.js

Index: test/mjsunit/harmony/block-let-declaration.js
diff --git a/test/mjsunit/harmony/block-scoping.js b/test/mjsunit/harmony/block-let-declaration.js
similarity index 65%
copy from test/mjsunit/harmony/block-scoping.js
copy to test/mjsunit/harmony/block-let-declaration.js
index f974de82b5ce35b94dc58acb0ed651246014e1f9..19c943f14c0b1313c842f21ee7dc090d1a812b12 100644
--- a/test/mjsunit/harmony/block-scoping.js
+++ b/test/mjsunit/harmony/block-let-declaration.js
@@ -25,34 +25,43 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Flags: --allow-natives-syntax --harmony-block-scoping
-// Test functionality of block scopes.
-
-// Hoisting of var declarations.
-function f1() {
-  {
-    var x = 1;
-    var y;
-  }
-  assertEquals(1, x)
-  assertEquals(undefined, y)
+// Flags: --harmony-block-scoping
+
+// Test let declarations in various settings.
+
+// Global
+let x;
+let y = 2;
+
+// Block local
+{
+  let y;
+  let x = 3;
+}
+
+assertEquals(undefined, x);
+assertEquals(2,y);
+
+if (true) {
+  let y;
+  assertEquals(undefined, y);
 }
-f1();
-
-// Dynamic lookup through block scopes.
-function f2(one) {
-  var x = one + 1;
-  // TODO(keuchel): introduce let
-  // let y = one + 2;
-  if (one == 1) {
-    // Parameter
-    assertEquals(1, eval('one'));
-    // Function local var variable
-    assertEquals(2, eval('x'));
-    // Function local let variable
-    // TODO(keuchel): introduce let
-    // assertEquals(3, eval('y'));
-  }
+
+function TestLocalThrows(str, expect) {
+  assertThrows("(function(){" + str + "})()", expect);
 }
-f2(1);
 
+function TestLocalDoesNotThrow(str) {
+  assertDoesNotThrow("(function(){" + str + "})()");
+}
+
+// Unprotected statement
+TestLocalThrows("if (true) let x;", SyntaxError);
+TestLocalThrows("with ({}) let x;", SyntaxError);
+TestLocalThrows("do let x; while (false)", SyntaxError);
+TestLocalThrows("while (false) let x;", SyntaxError);
+
+TestLocalDoesNotThrow("if (true) var x;");
+TestLocalDoesNotThrow("with ({}) var x;");
+TestLocalDoesNotThrow("do var x; while (false)");
+TestLocalDoesNotThrow("while (false) var x;");