Expose thumbnails of pages to iOS share extensions.

ios/chrome/browser/ui/ui_util_unittest.mm

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "ios/chrome/browser/ui/ui_util.h"
 
 #include <stddef.h>
 #import <UIKit/UIKit.h>
 
 #include "base/macros.h"
@@ skipping 186 matching lines @@
   originalSize = CGSizeMake(50, 100);
   targetSize = CGSizeMake(40, 60);
   expectedRevisedSize = targetSize;
   expectedProjection = CGRectMake(0, -10, 40, 80);
   CalculateProjection(originalSize, targetSize, ProjectionMode::kAspectFill,
                       revisedSize, projection);
   EXPECT_EQ_RECT(expectedProjection, projection);
   EXPECT_EQ_SIZE(expectedRevisedSize, revisedSize);
 }
 
+TEST(UIUtilTest, TestProjectionAspectFillAlignTop) {
+  CGSize originalSize, targetSize, expectedRevisedSize, revisedSize;
+  CGRect expectedProjection, projection;
+
+  // Landscape resize to 100x100
+  originalSize = CGSizeMake(400, 200);
+  targetSize = CGSizeMake(100, 100);
+  expectedRevisedSize = targetSize;
+  expectedProjection = CGRectMake(-50, 0, 200, 100);
+  CalculateProjection(originalSize, targetSize,
+                      ProjectionMode::kAspectFillAlignTop, revisedSize,
+                      projection);
+  EXPECT_EQ_RECT(expectedProjection, projection);
+  EXPECT_EQ_SIZE(expectedRevisedSize, revisedSize);
+
+  // Portrait resize to 100x100 and aligned to top
+  originalSize = CGSizeMake(200, 400);
+  targetSize = CGSizeMake(100, 100);
+  expectedRevisedSize = targetSize;
+  expectedProjection = CGRectMake(0, 0, 100, 200);
+  CalculateProjection(originalSize, targetSize,
+                      ProjectionMode::kAspectFillAlignTop, revisedSize,
+                      projection);
+  EXPECT_EQ_RECT(expectedProjection, projection);
+  EXPECT_EQ_SIZE(expectedRevisedSize, revisedSize);
+}
+
 TEST(UIUtilTest, TestProjectionAspectFillNoClipping) {
   CGSize originalSize, targetSize, expectedRevisedSize, revisedSize;
   CGRect expectedProjection, projection;
 
   // Landscape resize to 50x50
   originalSize = CGSizeMake(100, 50);
   targetSize = CGSizeMake(50, 50);
   expectedProjection = CGRectMake(0, 0, 100, 50);
   expectedRevisedSize = expectedProjection.size;
   CalculateProjection(originalSize, targetSize,
@@ skipping 50 matching lines @@
   originalSize = CGSizeMake(50, 100);
   targetSize = CGSizeMake(40, 60);
   expectedProjection = CGRectMake(0, 0, 40, 80);
   expectedRevisedSize = expectedProjection.size;
   CalculateProjection(originalSize, targetSize,
                       ProjectionMode::kAspectFillNoClipping, revisedSize,
                       projection);
   EXPECT_EQ_RECT(expectedProjection, projection);
   EXPECT_EQ_SIZE(expectedRevisedSize, revisedSize);
 }