multiple flex and margin

src/Layout.js

@@ -193,7 +193,9 @@ var computeLayout = (function() {
       } else {
         flexibleChildrenCount++;
         mainContentDim += getPadding(child, leading[mainAxis]) +
-          getPadding(child, trailing[mainAxis]);
+          getPadding(child, trailing[mainAxis]) +
+          getMargin(child, leading[mainAxis]) +
+          getMargin(child, trailing[mainAxis]);
       }
     }
 
@@ -210,9 +212,7 @@ var computeLayout = (function() {
         for (var/*int*/ i = 0; i < node.children.length; ++i) {
           var/*css_node_t**/ child = node.children[i];
           if (getFlex(child)) {
-            child.layout[dim[mainAxis]] = flexibleMainDim -
+            child.layout[dim[mainAxis]] = flexibleMainDim +
-              getMargin(child, leading[mainAxis]) -
-              getMargin(child, trailing[mainAxis]) +
               getPadding(child, leading[mainAxis]) +
               getPadding(child, trailing[mainAxis]);
             layoutNode(child);

src/__tests__/Layout-test.js

@@ -632,6 +632,18 @@ describe('Layout', function() {
     );
   });
 
+  it('should layout node with multiple flex and margin', function() {
+    testLayout(
+      {style: {width: 700, flexDirection: 'row'}, children: [
+        {style: {flex: 1}},
+        {style: {marginLeft: 5, flex: 1}}
+      ]},
+      {width: 700, height: 0, top: 0, left: 0, children: [
+        {width: 347.5, height: 0, top: 0, left: 0},
+        {width: 347.5, height: 0, top: 0, left: 352.5}
+      ]}
+    )
+  });
 
   it('should layout randomly', function() {
     function RNG(seed) {