[LayoutNG] Unit tests for MinAndMaxContentSizes::ShrinkToFit().

third_party/WebKit/Source/core/layout/ng/ng_units_test.cc

 // Copyright 2016 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.
 
 #include "core/layout/ng/ng_units.h"
 
 #include "platform/text/TextDirection.h"
 #include "core/layout/ng/ng_writing_mode.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 82 matching lines @@
 
   logical = physical.ConvertToLogical(VerticalRightLeft, LTR);
   EXPECT_EQ(top, logical.inline_start);
   EXPECT_EQ(right, logical.block_start);
 
   logical = physical.ConvertToLogical(VerticalRightLeft, RTL);
   EXPECT_EQ(bottom, logical.inline_start);
   EXPECT_EQ(right, logical.block_start);
 }
 
+TEST(NGUnitsTest, ShrinkToFit) {
+  MinAndMaxContentSizes sizes;
+
+  sizes.min_content = LayoutUnit(100);
+  sizes.max_content = LayoutUnit(200);
+  EXPECT_EQ(LayoutUnit(200), sizes.ShrinkToFit(LayoutUnit(300)));
+
+  sizes.min_content = LayoutUnit(100);
+  sizes.max_content = LayoutUnit(300);
+  EXPECT_EQ(LayoutUnit(200), sizes.ShrinkToFit(LayoutUnit(200)));
+
+  sizes.min_content = LayoutUnit(200);
+  sizes.max_content = LayoutUnit(300);
+  EXPECT_EQ(LayoutUnit(200), sizes.ShrinkToFit(LayoutUnit(100)));
+}
+
 }  // namespace
 
 }  // namespace blink