1 files changed, 52 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/prefix-increment/whitespace.js b/js/src/tests/test262/language/expressions/prefix-increment/whitespace.js
new file mode 100644
index 0000000000..04d98bd7d8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/prefix-increment/whitespace.js
@@ -0,0 +1,52 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: |
+    White Space and Line Terminator between "++" and UnaryExpression are
+    allowed
+es5id: 11.4.4_A1
+esid: sec-prefix-increment-operator
+---*/
+
+var x = 0;
+
+assert.sameValue(++	x, 1, 'U+0009 (expression)');
+assert.sameValue(x, 1, 'U+0009 (side effect)');
+
+assert.sameValue(++x, 2, 'U+000B (expression)');
+assert.sameValue(x, 2, 'U+000B (side effect)');
+
+assert.sameValue(++x, 3, 'U+000C (expression)');
+assert.sameValue(x, 3, 'U+000C (side effect)');
+
+assert.sameValue(++ x, 4, 'U+0020 (expression)');
+assert.sameValue(x, 4, 'U+0020 (side effect)');
+
+assert.sameValue(++ x, 5, 'U+00A0 (expression)');
+assert.sameValue(x, 5, 'U+00A0 (side effect)');
+
+assert.sameValue(++
+x, 6, 'U+000A (expression)');
+assert.sameValue(x, 6, 'U+000A (side effect)');
+
+assert.sameValue(++
+x, 7, 'U+000D (expression)');
+assert.sameValue(x, 7, 'U+000D (side effect)');
+
+assert.sameValue(++ x, 8, 'U+2028 (expression)');
+assert.sameValue(x, 8, 'U+2028 (side effect)');
+
+assert.sameValue(++ x, 9, 'U+2029 (expression)');
+assert.sameValue(x, 9, 'U+2029 (side effect)');
+
+assert.sameValue(
+  ++	  
+
+  x,
+  10,
+  'U+0009U+000BU+000CU+0020U+00A0U+000AU+000DU+2028U+2029 (expression)'
+);
+assert.sameValue(
+  x, 10, 'U+0009U+000BU+000CU+0020U+00A0U+000AU+000DU+2028U+2029 (side effect)'
+);
+
+reportCompare(0, 0);