added test for align-self: baseline

yoga/Yoga.c

@@ -1008,6 +1008,21 @@ static inline bool YGNodeIsFlex(const YGNodeRef node) {
           (YGNodeStyleGetFlexGrow(node) != 0 || YGNodeStyleGetFlexShrink(node) != 0));
 }
 
+static bool YGIsBaselineLayout(const YGNodeRef node) {
+  if (node->style.alignItems == YGAlignBaseline) {
+    return true;
+  }
+
+  for (uint32_t i = 0; i < YGNodeGetChildCount(node); i++) {
+    const YGNodeRef child = YGNodeGetChild(node, i);
+    if (child->style.positionType == YGPositionTypeRelative &&
+        child->style.alignSelf == YGAlignBaseline) {
+      return true;
+    }
+  }
+  return false;
+}
+
 static inline float YGNodeDimWithMargin(const YGNodeRef node,
                                         const YGFlexDirection axis,
                                         const float widthSize) {
@@ -2462,7 +2477,7 @@ static void YGNodelayoutImpl(const YGNodeRef node,
   }
 
   // STEP 8: MULTI-LINE CONTENT ALIGNMENT
-  if ((node->style.alignItems == YGAlignBaseline || lineCount > 1) && performLayout &&
+  if (performLayout && (lineCount > 1 || YGIsBaselineLayout(node)) &&
       !YGFloatIsUndefined(availableInnerCrossDim)) {
     const float remainingAlignContentDim = availableInnerCrossDim - totalLineCrossDim;
 
@@ -2556,8 +2571,7 @@ static void YGNodelayoutImpl(const YGNodeRef node,
               }
               case YGAlignBaseline: {
                 child->layout.position[pos[crossAxis]] =
-                    currentLead + maxAscentForCurrentLine -
-                    YGBaseline(child, crossAxis) +
+                    currentLead + maxAscentForCurrentLine - YGBaseline(child, crossAxis) +
                     YGNodeLeadingPosition(child, crossAxis, availableInnerCrossDim);
                 break;
               }