make tolerance configurable on th ResponsiveUIValidator

Author: Torsten-Mumme

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

@@ -38,7 +38,7 @@ protected ResponsiveUIValidatorBase(UISnapshot snapshot) {
         Dimension dimension = this.driver.retrievePageSize();
         this.page = UIElement.asElement(new net.itarray.automotion.internal.geometry.Rectangle(0, 0, dimension.getWidth(), dimension.getHeight()), "page");
         this.startTime = System.currentTimeMillis();
-        tolerance = scalar(0);
+        tolerance = snapshot.getResponsiveUIValidator().getTolerance();
     }
 
 

src/main/java/net/itarray/automotion/validation/ResponsiveUIValidator.java

@@ -5,6 +5,7 @@
 import net.itarray.automotion.internal.HtmlReportBuilder;
 import net.itarray.automotion.internal.ResolutionImpl;
 import net.itarray.automotion.internal.ZoomUnknown;
+import net.itarray.automotion.internal.geometry.Scalar;
 import net.itarray.automotion.validation.properties.Resolution;
 import net.itarray.automotion.validation.properties.Zoom;
 import org.openqa.selenium.WebDriver;
@@ -13,6 +14,8 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import static net.itarray.automotion.internal.geometry.Scalar.scalar;
+
 public class ResponsiveUIValidator {
 
     protected final DriverFacade driver;
@@ -25,6 +28,7 @@ public class ResponsiveUIValidator {
     private double mobileTopBarOffset = 20;
     private final DrawingConfiguration drawingConfiguration = new DrawingConfiguration();
     private double scaleFactor = 1;
+    private Scalar tolerance = scalar(0);
 
     public ResponsiveUIValidator(WebDriver driver) {
         this(new DriverFacade(driver));
@@ -205,6 +209,21 @@ public void setLinesColor(Color color) {
         drawingConfiguration.setLinesColor(color);
     }
 
+    /**
+     * Set the tolerance (in pixels) to be used in all verifications.
+     *
+     * @param tolerance the tolerance (in pixels) to be used in all verifications
+     * @return
+     */
+    public ResponsiveUIValidator withTolerance(int tolerance) {
+        this.tolerance = scalar(tolerance);
+        return this;
+    }
+
+    public Scalar getTolerance() {
+        return tolerance;
+    }
+
     public DrawingConfiguration getDrawingConfiguration() {
         return drawingConfiguration;
     }

src/main/java/net/itarray/automotion/validation/UISnapshot.java

@@ -67,6 +67,4 @@ public File takeScreenshot() {
         }
         return screenshotName;
     }
-
-
 }