Solve width bug when the size is less than min

Summary:
Removed the faulty calculation of `remainingFreeSpace` from the code. `remainingFreeSpace` already had the correct value that special condition was not required.

Also added a test case for this issue

Reviewed By: IanChilds

Differential Revision: D9286928

fbshipit-source-id: 915269602cda2cc4515e6eab8184b2ea98d3e6d4

yoga/Yoga.cpp

@@ -2396,20 +2396,13 @@ static void YGJustifyMainAxis(
     const bool& performLayout) {
   const YGStyle& style = node->getStyle();
 
-  // If we are using "at most" rules in the main axis. Calculate the remaining
-  // space when constraint by the min size defined for the main axis.
+  // If we are using "at most" rules in the main axis, make sure that
+  // remainingFreeSpace is 0 when min main dimension is not given
   if (measureModeMainDim == YGMeasureModeAtMost &&
       collectedFlexItemsValues.remainingFreeSpace > 0) {
-    if (style.minDimensions[dim[mainAxis]].unit != YGUnitUndefined &&
-        !YGResolveValue(style.minDimensions[dim[mainAxis]], mainAxisownerSize)
-             .isUndefined()) {
-      collectedFlexItemsValues.remainingFreeSpace = YGFloatMax(
-          0,
-          YGUnwrapFloatOptional(YGResolveValue(
-              style.minDimensions[dim[mainAxis]], mainAxisownerSize)) -
-              (availableInnerMainDim -
-               collectedFlexItemsValues.remainingFreeSpace));
-    } else {
+    if (style.minDimensions[dim[mainAxis]].unit == YGUnitUndefined ||
+        YGResolveValue(style.minDimensions[dim[mainAxis]], mainAxisownerSize)
+            .isUndefined()) {
       collectedFlexItemsValues.remainingFreeSpace = 0;
     }
   }