shouldBeEqualToString('flexitem.style.webkitFlex', '1.75 2 3px');
shouldBeEqualToString('getComputedStyle(flexitem).webkitFlex', '1.75 2 3px');
-flexitem.style.webkitFlex = '1 3px 2';
-shouldBeEqualToString('flexitem.style.webkitFlex', '1 2 3px');
-shouldBeEqualToString('getComputedStyle(flexitem).webkitFlex', '1 2 3px');
+flexitem.style.webkitFlex = '1 3px 2'; // Invalid, return previous value.
+shouldBeEqualToString('flexitem.style.webkitFlex', '1.75 2 3px');
+shouldBeEqualToString('getComputedStyle(flexitem).webkitFlex', '1.75 2 3px');
+
+flexitem.style.webkitFlex = '1 auto 1'; // Invalid, return previous value.
+shouldBeEqualToString('flexitem.style.webkitFlex', '1.75 2 3px');
+shouldBeEqualToString('getComputedStyle(flexitem).webkitFlex', '1.75 2 3px');
flexitem.style.webkitFlex = '3px 1 2';
shouldBeEqualToString('flexitem.style.webkitFlex', '1 2 3px');
shouldBeEqualToString('flexitem.style.webkitFlex', '0 1 0px');
shouldBeEqualToString('getComputedStyle(flexitem).webkitFlex', '0 1 0px');
-flexitem.style.webkitFlex = '0 0px 0';
-shouldBeEqualToString('flexitem.style.webkitFlex', '0 0 0px');
-shouldBeEqualToString('getComputedStyle(flexitem).webkitFlex', '0 0 0px');
+flexitem.style.webkitFlex = '0 0px 0'; // Invalid, return previous value.
+shouldBeEqualToString('flexitem.style.webkitFlex', '0 1 0px');
+shouldBeEqualToString('getComputedStyle(flexitem).webkitFlex', '0 1 0px');
flexitem.style.webkitFlex = 'none';
flexitem.style.webkitFlex = '1 2 3'; // Invalid, return previous value.