tolerance tests and fix

src/main/java/net/itarray/automotion/internal/ResponsiveUIChunkValidatorBase.java

@@ -281,7 +281,7 @@ private void validateElementsAreNotOverlapped(List<UIElement> elements) {
             UIElement first = elements.get(firstIndex);
             for (int secondIndex = firstIndex+1; secondIndex < elements.size(); secondIndex++) {
                 UIElement second = elements.get(secondIndex);
-                if (first.overlaps(second, context)) {
+                if (!first.notOverlaps(second, context)) {
                     context.add("Elements are overlapped");
                     context.draw(first);
                     break;

src/main/java/net/itarray/automotion/internal/UIElement.java

@@ -172,6 +172,13 @@ public boolean overlaps(UIElement other, Context context) {
                 Condition.lessThan(getBottom()).isSatisfiedOn(other.getTop(), context, DOWN);
     }
 
+    public boolean notOverlaps(UIElement other, Context context) {
+        return Condition.greaterOrEqualTo(other.getRight()).isSatisfiedOn(getLeft(), context, RIGHT)  ||
+                Condition.greaterOrEqualTo(getRight()).isSatisfiedOn(other.getLeft(), context, RIGHT) ||
+                Condition.greaterOrEqualTo(other.getBottom()).isSatisfiedOn(getTop(), context, DOWN) ||
+                Condition.greaterOrEqualTo(getBottom()).isSatisfiedOn(other.getTop(), context, DOWN);
+    }
+
     private Scalar getOffset(Direction direction, UIElement page) {
         return direction.signedDistance(getEnd(direction), page.getEnd(direction));
     }
@@ -347,7 +354,7 @@ public void validateOverlappingWithElement(UIElement element, Context context) {
     }
 
     public void validateNotOverlappingWithElement(UIElement element, Context context) {
-        if (overlaps(element, context)) {
+        if (!notOverlaps(element, context)) {
             context.add(String.format("Element %s is overlapped with element %s but should not",
                                 getQuotedName(),
                                 element.getQuotedName()));

src/main/java/util/validator/ResponsiveUIValidator.java

@@ -32,6 +32,11 @@ protected ResponsiveUIValidator(net.itarray.automotion.validation.ResponsiveUIVa
         responsiveUIValidator.dontDrawMap();
     }
 
+    public ResponsiveUIValidator withTolerance(int tolerance) {
+        responsiveUIValidator.withTolerance(tolerance);
+        return this;
+    }
+
     public boolean isWithReport() {
         return responsiveUIValidator.isWithReport();
     }

src/test/java/rectangles/IntersectionTest.java

@@ -59,7 +59,7 @@ public void shouldNotOverlap() {
 
     @Test
     public void areNotOverlapped() {
-        assertThat(areNotOverlappedWithEachOther(Arrays.asList(root, other)))
+        assertThat(doNotOverlap(Arrays.asList(root, other)))
                 .withFailMessage(failMessage(intersectionExpectation()))
                 .isEqualTo(!intersects);
     }