chrome/browser/ui/cocoa/autofill/simple_grid_layout_unittest.mm - platform/external/chromium_org - Git at Google

 // Copyright (c) 2013 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 "chrome/browser/ui/cocoa/autofill/simple_grid_layout.h"

 #include "base/logging.h"
 #include "base/mac/scoped_nsobject.h"
 #include "testing/gtest/include/gtest/gtest.h"

 namespace {

 // Layout objects as multiple columns in a single row.
 class ColumnLayout : public SimpleGridLayout {
  public:
    ColumnLayout(NSView* host)  : SimpleGridLayout(host) { AddRow(); }
    ~ColumnLayout() {}
 };

 class LayoutTest : public testing::Test {
  public:
   base::scoped_nsobject<NSView> CreateViewWithWidth(float width) {
     NSRect frame = NSMakeRect(0, 0, width, 0);
     base::scoped_nsobject<NSView> view([[NSView alloc] initWithFrame:frame]);
     return view;
   }

   base::scoped_nsobject<NSView> CreateViewWithHeight(float height) {
     NSRect frame = NSMakeRect(0, 0, 0, height);
     base::scoped_nsobject<NSView> view([[NSView alloc] initWithFrame:frame]);
     return view;
   }
 };

 TEST_F(LayoutTest, GridLayoutAddGetColumnSet) {
   SimpleGridLayout layout(NULL);

   // Non-existing id's are not found.
   EXPECT_EQ(0L, layout.GetColumnSet(1));

   // Created ColumnSets can be retrieved.
   ColumnSet* set1 = layout.AddColumnSet(10);
   ColumnSet* set2 = layout.AddColumnSet(11);
   ColumnSet* set3 = layout.AddColumnSet(12);
   EXPECT_EQ(set2, layout.GetColumnSet(11));
   EXPECT_EQ(set1, layout.GetColumnSet(10));
   EXPECT_EQ(set3, layout.GetColumnSet(12));
 }

 TEST_F(LayoutTest, AddRowAutogeneratesColumnSetId) {
   SimpleGridLayout layout(NULL);

   ColumnSet* set1 = layout.AddRow();
   EXPECT_NE(0, set1->id());

   ColumnSet* set2 = layout.AddRow();
   EXPECT_NE(set1->id(), set2->id());
 }

 TEST_F(LayoutTest, AddRowResetsNextColumn) {
   SimpleGridLayout layout(NULL);
   layout.AddRow();
   layout.GetLastValidColumnSet()->AddColumn(0.6f);
   layout.GetLastValidColumnSet()->AddColumn(0.6f);
   layout.AddView(nil);
   EXPECT_EQ(1, layout.next_column());

   layout.AddRow();
   EXPECT_EQ(0, layout.next_column());
 }

 TEST_F(LayoutTest, GetLastValidColumnSet) {
   SimpleGridLayout layout(NULL);

   EXPECT_EQ(NULL, layout.GetLastValidColumnSet());

   ColumnSet* cs1 = layout.AddColumnSet(1);
   ColumnSet* cs2 = layout.AddColumnSet(2);
   layout.StartRow(0.0, 2);
   EXPECT_EQ(cs2, layout.GetLastValidColumnSet());

   layout.AddPaddingRow(10);
   EXPECT_EQ(cs2, layout.GetLastValidColumnSet());

   layout.StartRow(0.0, 1);
   EXPECT_EQ(cs1, layout.GetLastValidColumnSet());
 }


 TEST_F(LayoutTest, AddRowCreatesNewColumnSet) {
   SimpleGridLayout layout(NULL);

   EXPECT_EQ(NULL, layout.GetLastValidColumnSet());

   ColumnSet* old_column_set = layout.AddRow();
   EXPECT_TRUE(old_column_set != NULL);
   EXPECT_EQ(old_column_set, layout.GetLastValidColumnSet());

   ColumnSet* new_column_set = layout.AddRow();
   EXPECT_TRUE(new_column_set != NULL);
   EXPECT_EQ(new_column_set, layout.GetLastValidColumnSet());
 }

 TEST_F(LayoutTest, AddPaddingRow) {
   SimpleGridLayout layout(NULL);

   ColumnSet* cs;
   cs = layout.AddRow();
   cs->AddColumn(1.0f);
   base::scoped_nsobject<NSView> view1 = CreateViewWithHeight(30.0f);
   layout.AddView(view1);

   layout.AddPaddingRow(20);

   cs = layout.AddRow();
   cs->AddColumn(1.0f);
   EXPECT_EQ(3, layout.num_rows());
   base::scoped_nsobject<NSView> view2 = CreateViewWithHeight(10.0f);
   layout.AddView(view2);

   layout.SizeRowsAndColumns(0.0f);
   EXPECT_FLOAT_EQ(30.0f, layout.GetRowHeight(0));
   EXPECT_FLOAT_EQ(20.0f, layout.GetRowHeight(1));
   EXPECT_FLOAT_EQ(10.0f, layout.GetRowHeight(2));
 }

 TEST_F(LayoutTest, RowsAccomodateHeightOfAllElements) {
   SimpleGridLayout layout(NULL);

   layout.AddRow();
   layout.GetLastValidColumnSet()->AddColumn(0.6f);
   layout.GetLastValidColumnSet()->AddColumn(0.6f);
   layout.GetLastValidColumnSet()->AddColumn(0.6f);

   base::scoped_nsobject<NSView> view1 = CreateViewWithHeight(37.0f);
   layout.AddView(view1);
   layout.SizeRowsAndColumns(0.0f);
   EXPECT_FLOAT_EQ(37.0f, layout.GetRowHeight(0));

   base::scoped_nsobject<NSView> view2 = CreateViewWithHeight(26.0f);
   layout.AddView(view2);
   layout.SizeRowsAndColumns(0.0f);
   EXPECT_FLOAT_EQ(37.0f, layout.GetRowHeight(0));

   base::scoped_nsobject<NSView> view3 = CreateViewWithHeight(42.0f);
   layout.AddView(view3);
   layout.SizeRowsAndColumns(0.0f);
   EXPECT_FLOAT_EQ(42.0f, layout.GetRowHeight(0));
 }

 TEST_F(LayoutTest, SizeRowsAdjustsRowLocations) {
   SimpleGridLayout layout(NULL);

   layout.AddRow();
   layout.GetLastValidColumnSet()->AddColumn(0.6f);
   base::scoped_nsobject<NSView> view1 = CreateViewWithHeight(30.0f);
   layout.AddView(view1);

   layout.AddRow();
   layout.GetLastValidColumnSet()->AddColumn(0.6f);
   base::scoped_nsobject<NSView> view2 = CreateViewWithHeight(40.0f);
   layout.AddView(view2);

   layout.SizeRowsAndColumns(0.0f);
   EXPECT_FLOAT_EQ(0.0f, layout.GetRowLocation(0));
   EXPECT_FLOAT_EQ(30.0f, layout.GetRowLocation(1));
 }

 TEST_F(LayoutTest, SimpleGridLayoutAdjustsViews) {
   SimpleGridLayout layout(NULL);

   layout.AddRow();
   layout.GetLastValidColumnSet()->AddColumn(0.6f);
   layout.GetLastValidColumnSet()->AddPaddingColumn(30);
   layout.GetLastValidColumnSet()->AddColumn(0.4f);

   base::scoped_nsobject<NSView> view1 = CreateViewWithHeight(22.0f);
   base::scoped_nsobject<NSView> view2 = CreateViewWithHeight(20.0f);
   layout.AddView(view1);
   layout.AddView(view2);

   layout.AddRow();
   layout.GetLastValidColumnSet()->AddColumn(0.6f);
   base::scoped_nsobject<NSView> view3 = CreateViewWithHeight(18.0f);
   layout.AddView(view3);

   base::scoped_nsobject<NSView> host_view = CreateViewWithWidth(150.0f);
   layout.Layout(host_view);

   EXPECT_FLOAT_EQ(72.0f, NSWidth([view1 frame]));
   EXPECT_FLOAT_EQ(22.0f, NSHeight([view1 frame]));
   EXPECT_FLOAT_EQ(0.0f, NSMinX([view1 frame]));
   EXPECT_FLOAT_EQ(0.0f, NSMinY([view1 frame]));

   EXPECT_FLOAT_EQ(48.0f, NSWidth([view2 frame]));
   EXPECT_FLOAT_EQ(22.0f, NSHeight([view2 frame]));
   EXPECT_FLOAT_EQ(102.0f, NSMinX([view2 frame]));
   EXPECT_FLOAT_EQ(0.0f, NSMinY([view2 frame]));

   EXPECT_FLOAT_EQ(150.0f, NSWidth([view3 frame]));
   EXPECT_FLOAT_EQ(18.0f, NSHeight([view3 frame]));
   EXPECT_FLOAT_EQ(0.0f, NSMinX([view3 frame]));
   EXPECT_FLOAT_EQ(22.0f, NSMinY([view3 frame]));
 }

 TEST_F(LayoutTest, PreferredHeightForEmptyLayout) {
   SimpleGridLayout layout(NULL);
   EXPECT_FLOAT_EQ(0.0f, layout.GetPreferredHeightForWidth(100.0));
 }

 TEST_F(LayoutTest, SimpleGridLayoutHeightForWidth)
 {
   SimpleGridLayout layout(NULL);
   layout.AddRow();
   layout.GetLastValidColumnSet()->AddColumn(0.6f);

   base::scoped_nsobject<NSView> view1 = CreateViewWithHeight(22.0f);
   layout.AddView(view1);
   EXPECT_FLOAT_EQ(22.0f, layout.GetPreferredHeightForWidth(100.0));

   layout.AddPaddingRow(12);
   EXPECT_FLOAT_EQ(34.0f, layout.GetPreferredHeightForWidth(100.0));

   layout.AddRow();
   layout.GetLastValidColumnSet()->AddColumn(0.6f);
   base::scoped_nsobject<NSView> view2 = CreateViewWithHeight(13.0f);
   layout.AddView(view2);
   EXPECT_FLOAT_EQ(47.0f, layout.GetPreferredHeightForWidth(100.0));
 }

 TEST_F(LayoutTest, SkipColumns) {
   ColumnLayout layout(NULL);

   ASSERT_TRUE(layout.GetLastValidColumnSet() != NULL);
   layout.GetLastValidColumnSet()->AddColumn(0.6f);
   layout.GetLastValidColumnSet()->AddColumn(0.6f);
   layout.GetLastValidColumnSet()->AddColumn(0.4f);
   layout.GetLastValidColumnSet()->AddColumn(0.6f);
   layout.GetLastValidColumnSet()->AddPaddingColumn(30);
   layout.GetLastValidColumnSet()->AddColumn(0.6f);

   // Skip a single column
   EXPECT_EQ(0, layout.next_column());
   layout.SkipColumns(1);
   EXPECT_EQ(1, layout.next_column());

   // Skip multiple columns
   layout.SkipColumns(2);
   EXPECT_EQ(3, layout.next_column());

   // SkipColumns skips padding, too
   layout.SkipColumns(1);
   EXPECT_EQ(5, layout.next_column());
 }

 TEST_F(LayoutTest, SkipPaddingColumns) {
   ColumnLayout layout(NULL);

   ASSERT_TRUE(layout.GetLastValidColumnSet() != NULL);
   layout.GetLastValidColumnSet()->AddColumn(0.6f);
   layout.GetLastValidColumnSet()->AddPaddingColumn(30);
   layout.GetLastValidColumnSet()->AddColumn(0.4f);
   layout.GetLastValidColumnSet()->AddPaddingColumn(30);
   layout.GetLastValidColumnSet()->AddPaddingColumn(30);
   layout.GetLastValidColumnSet()->AddColumn(0.4f);

   // Don't skip over non-padding columns.
   EXPECT_EQ(0, layout.next_column());
   layout.SkipPaddingColumns();
   EXPECT_EQ(0, layout.next_column());

   // Skip a single padding column.
   layout.AdvanceColumn();
   EXPECT_EQ(1, layout.next_column());
   layout.SkipPaddingColumns();
   EXPECT_EQ(2, layout.next_column());

   // Skip multiple padding columns.
   layout.AdvanceColumn();
   EXPECT_EQ(3, layout.next_column());
   layout.SkipPaddingColumns();
   EXPECT_EQ(5, layout.next_column());
 }

 TEST_F(LayoutTest, SizeColumnsAdjustLocationAndSize) {
   ColumnLayout layout(NULL);

   ASSERT_TRUE(layout.GetLastValidColumnSet() != NULL);
   layout.GetLastValidColumnSet()->AddColumn(0.6f);
   layout.GetLastValidColumnSet()->AddPaddingColumn(30);
   layout.GetLastValidColumnSet()->AddColumn(0.4f);

   layout.SizeRowsAndColumns(130.0f);
   EXPECT_FLOAT_EQ(0.0f, layout.GetLastValidColumnSet()->ColumnLocation(0));
   EXPECT_FLOAT_EQ(60.0f, layout.GetLastValidColumnSet()->GetColumnWidth(0));
   EXPECT_FLOAT_EQ(60.0f, layout.GetLastValidColumnSet()->ColumnLocation(1));
   EXPECT_FLOAT_EQ(30.0f, layout.GetLastValidColumnSet()->GetColumnWidth(1));
   EXPECT_FLOAT_EQ(90.0f, layout.GetLastValidColumnSet()->ColumnLocation(2));
   EXPECT_FLOAT_EQ(40.0f, layout.GetLastValidColumnSet()->GetColumnWidth(2));
 }

 TEST_F(LayoutTest, AddViewSkipsPaddingColumns) {
   ColumnLayout layout(NULL);

   ASSERT_TRUE(layout.GetLastValidColumnSet() != NULL);
   layout.GetLastValidColumnSet()->AddColumn(0.6f);
   layout.GetLastValidColumnSet()->AddPaddingColumn(30);
   layout.GetLastValidColumnSet()->AddColumn(0.4f);

   EXPECT_EQ(0, layout.next_column());
   base::scoped_nsobject<NSView> view1 = CreateViewWithWidth(37.0f);
   layout.AddView(view1);
   EXPECT_EQ(2, layout.next_column());
 }

 TEST_F(LayoutTest, ColumnLayoutAdjustsViews) {
   ColumnLayout layout(NULL);

   ASSERT_TRUE(layout.GetLastValidColumnSet() != NULL);
   layout.GetLastValidColumnSet()->AddColumn(0.6f);
   layout.GetLastValidColumnSet()->AddPaddingColumn(30);
   layout.GetLastValidColumnSet()->AddColumn(0.4f);

   base::scoped_nsobject<NSView> view1 = CreateViewWithWidth(37.0f);
   base::scoped_nsobject<NSView> view2 = CreateViewWithWidth(42.0f);
   layout.AddView(view1);
   layout.AddView(view2);

   base::scoped_nsobject<NSView> host_view = CreateViewWithWidth(150.0f);
   layout.Layout(host_view);

   EXPECT_FLOAT_EQ(72.0f, NSWidth([view1 frame]));
   EXPECT_FLOAT_EQ(48.0f, NSWidth([view2 frame]));
 }

 TEST_F(LayoutTest, ColumnSetAddPadding) {
   ColumnSet columns(0);

   columns.AddPaddingColumn(20);
   EXPECT_EQ(1, columns.num_columns());

   columns.CalculateSize(20.0f);
   EXPECT_FLOAT_EQ(20.0f, columns.GetColumnWidth(0));

   columns.CalculateSize(120.0f);
   EXPECT_FLOAT_EQ(20.0f, columns.GetColumnWidth(0));
 }

 TEST_F(LayoutTest, ColumnSetOneFlexibleColumn) {
   ColumnSet columns(0);

   columns.AddColumn(1.0f);
   EXPECT_EQ(1, columns.num_columns());

   columns.CalculateSize(20.0f);
   EXPECT_FLOAT_EQ(20.0f, columns.GetColumnWidth(0));

   columns.CalculateSize(120.0f);
   EXPECT_FLOAT_EQ(120.0f, columns.GetColumnWidth(0));
 }

 TEST_F(LayoutTest, ColumnSetTwoFlexibleColumns) {
   ColumnSet columns(0);

   columns.AddColumn(0.6f);
   columns.AddColumn(0.4f);
   EXPECT_EQ(2, columns.num_columns());

   columns.CalculateSize(100.0f);
   EXPECT_FLOAT_EQ(60.0f, columns.GetColumnWidth(0));
   EXPECT_FLOAT_EQ(40.0f, columns.GetColumnWidth(1));

   columns.CalculateSize(150.0f);
   EXPECT_FLOAT_EQ(90.0f, columns.GetColumnWidth(0));
   EXPECT_FLOAT_EQ(60.0f, columns.GetColumnWidth(1));
 }

 TEST_F(LayoutTest, ColumnSetMixedColumns) {
   ColumnSet columns(0);

   columns.AddColumn(0.6f);
   columns.AddPaddingColumn(20);
   columns.AddColumn(0.4f);
   EXPECT_EQ(3, columns.num_columns());

   columns.CalculateSize(100.0f);
   EXPECT_FLOAT_EQ(48.0f, columns.GetColumnWidth(0));
   EXPECT_FLOAT_EQ(20.0f, columns.GetColumnWidth(1));
   EXPECT_FLOAT_EQ(32.0f, columns.GetColumnWidth(2));

   columns.CalculateSize(200.0f);
   EXPECT_FLOAT_EQ(108.0f, columns.GetColumnWidth(0));
   EXPECT_FLOAT_EQ(20.0f, columns.GetColumnWidth(1));
   EXPECT_FLOAT_EQ(72.0f, columns.GetColumnWidth(2));
 }

 }  // namespace
	// Copyright (c) 2013 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 "chrome/browser/ui/cocoa/autofill/simple_grid_layout.h"

	#include "base/logging.h"
	#include "base/mac/scoped_nsobject.h"
	#include "testing/gtest/include/gtest/gtest.h"

	namespace {

	// Layout objects as multiple columns in a single row.
	class ColumnLayout : public SimpleGridLayout {
	public:
	ColumnLayout(NSView* host) : SimpleGridLayout(host) { AddRow(); }
	~ColumnLayout() {}
	};

	class LayoutTest : public testing::Test {
	public:
	base::scoped_nsobject<NSView> CreateViewWithWidth(float width) {
	NSRect frame = NSMakeRect(0, 0, width, 0);
	base::scoped_nsobject<NSView> view([[NSView alloc] initWithFrame:frame]);
	return view;
	}

	base::scoped_nsobject<NSView> CreateViewWithHeight(float height) {
	NSRect frame = NSMakeRect(0, 0, 0, height);
	base::scoped_nsobject<NSView> view([[NSView alloc] initWithFrame:frame]);
	return view;
	}
	};

	TEST_F(LayoutTest, GridLayoutAddGetColumnSet) {
	SimpleGridLayout layout(NULL);

	// Non-existing id's are not found.
	EXPECT_EQ(0L, layout.GetColumnSet(1));

	// Created ColumnSets can be retrieved.
	ColumnSet* set1 = layout.AddColumnSet(10);
	ColumnSet* set2 = layout.AddColumnSet(11);
	ColumnSet* set3 = layout.AddColumnSet(12);
	EXPECT_EQ(set2, layout.GetColumnSet(11));
	EXPECT_EQ(set1, layout.GetColumnSet(10));
	EXPECT_EQ(set3, layout.GetColumnSet(12));
	}

	TEST_F(LayoutTest, AddRowAutogeneratesColumnSetId) {
	SimpleGridLayout layout(NULL);

	ColumnSet* set1 = layout.AddRow();
	EXPECT_NE(0, set1->id());

	ColumnSet* set2 = layout.AddRow();
	EXPECT_NE(set1->id(), set2->id());
	}

	TEST_F(LayoutTest, AddRowResetsNextColumn) {
	SimpleGridLayout layout(NULL);
	layout.AddRow();
	layout.GetLastValidColumnSet()->AddColumn(0.6f);
	layout.GetLastValidColumnSet()->AddColumn(0.6f);
	layout.AddView(nil);
	EXPECT_EQ(1, layout.next_column());

	layout.AddRow();
	EXPECT_EQ(0, layout.next_column());
	}

	TEST_F(LayoutTest, GetLastValidColumnSet) {
	SimpleGridLayout layout(NULL);

	EXPECT_EQ(NULL, layout.GetLastValidColumnSet());

	ColumnSet* cs1 = layout.AddColumnSet(1);
	ColumnSet* cs2 = layout.AddColumnSet(2);
	layout.StartRow(0.0, 2);
	EXPECT_EQ(cs2, layout.GetLastValidColumnSet());

	layout.AddPaddingRow(10);
	EXPECT_EQ(cs2, layout.GetLastValidColumnSet());

	layout.StartRow(0.0, 1);
	EXPECT_EQ(cs1, layout.GetLastValidColumnSet());
	}


	TEST_F(LayoutTest, AddRowCreatesNewColumnSet) {
	SimpleGridLayout layout(NULL);

	EXPECT_EQ(NULL, layout.GetLastValidColumnSet());

	ColumnSet* old_column_set = layout.AddRow();
	EXPECT_TRUE(old_column_set != NULL);
	EXPECT_EQ(old_column_set, layout.GetLastValidColumnSet());

	ColumnSet* new_column_set = layout.AddRow();
	EXPECT_TRUE(new_column_set != NULL);
	EXPECT_EQ(new_column_set, layout.GetLastValidColumnSet());
	}

	TEST_F(LayoutTest, AddPaddingRow) {
	SimpleGridLayout layout(NULL);

	ColumnSet* cs;
	cs = layout.AddRow();
	cs->AddColumn(1.0f);
	base::scoped_nsobject<NSView> view1 = CreateViewWithHeight(30.0f);
	layout.AddView(view1);

	layout.AddPaddingRow(20);

	cs = layout.AddRow();
	cs->AddColumn(1.0f);
	EXPECT_EQ(3, layout.num_rows());
	base::scoped_nsobject<NSView> view2 = CreateViewWithHeight(10.0f);
	layout.AddView(view2);

	layout.SizeRowsAndColumns(0.0f);
	EXPECT_FLOAT_EQ(30.0f, layout.GetRowHeight(0));
	EXPECT_FLOAT_EQ(20.0f, layout.GetRowHeight(1));
	EXPECT_FLOAT_EQ(10.0f, layout.GetRowHeight(2));
	}

	TEST_F(LayoutTest, RowsAccomodateHeightOfAllElements) {
	SimpleGridLayout layout(NULL);

	layout.AddRow();
	layout.GetLastValidColumnSet()->AddColumn(0.6f);
	layout.GetLastValidColumnSet()->AddColumn(0.6f);
	layout.GetLastValidColumnSet()->AddColumn(0.6f);

	base::scoped_nsobject<NSView> view1 = CreateViewWithHeight(37.0f);
	layout.AddView(view1);
	layout.SizeRowsAndColumns(0.0f);
	EXPECT_FLOAT_EQ(37.0f, layout.GetRowHeight(0));

	base::scoped_nsobject<NSView> view2 = CreateViewWithHeight(26.0f);
	layout.AddView(view2);
	layout.SizeRowsAndColumns(0.0f);
	EXPECT_FLOAT_EQ(37.0f, layout.GetRowHeight(0));

	base::scoped_nsobject<NSView> view3 = CreateViewWithHeight(42.0f);
	layout.AddView(view3);
	layout.SizeRowsAndColumns(0.0f);
	EXPECT_FLOAT_EQ(42.0f, layout.GetRowHeight(0));
	}

	TEST_F(LayoutTest, SizeRowsAdjustsRowLocations) {
	SimpleGridLayout layout(NULL);

	layout.AddRow();
	layout.GetLastValidColumnSet()->AddColumn(0.6f);
	base::scoped_nsobject<NSView> view1 = CreateViewWithHeight(30.0f);
	layout.AddView(view1);

	layout.AddRow();
	layout.GetLastValidColumnSet()->AddColumn(0.6f);
	base::scoped_nsobject<NSView> view2 = CreateViewWithHeight(40.0f);
	layout.AddView(view2);

	layout.SizeRowsAndColumns(0.0f);
	EXPECT_FLOAT_EQ(0.0f, layout.GetRowLocation(0));
	EXPECT_FLOAT_EQ(30.0f, layout.GetRowLocation(1));
	}

	TEST_F(LayoutTest, SimpleGridLayoutAdjustsViews) {
	SimpleGridLayout layout(NULL);

	layout.AddRow();
	layout.GetLastValidColumnSet()->AddColumn(0.6f);
	layout.GetLastValidColumnSet()->AddPaddingColumn(30);
	layout.GetLastValidColumnSet()->AddColumn(0.4f);

	base::scoped_nsobject<NSView> view1 = CreateViewWithHeight(22.0f);
	base::scoped_nsobject<NSView> view2 = CreateViewWithHeight(20.0f);
	layout.AddView(view1);
	layout.AddView(view2);

	layout.AddRow();
	layout.GetLastValidColumnSet()->AddColumn(0.6f);
	base::scoped_nsobject<NSView> view3 = CreateViewWithHeight(18.0f);
	layout.AddView(view3);

	base::scoped_nsobject<NSView> host_view = CreateViewWithWidth(150.0f);
	layout.Layout(host_view);

	EXPECT_FLOAT_EQ(72.0f, NSWidth([view1 frame]));
	EXPECT_FLOAT_EQ(22.0f, NSHeight([view1 frame]));
	EXPECT_FLOAT_EQ(0.0f, NSMinX([view1 frame]));
	EXPECT_FLOAT_EQ(0.0f, NSMinY([view1 frame]));

	EXPECT_FLOAT_EQ(48.0f, NSWidth([view2 frame]));
	EXPECT_FLOAT_EQ(22.0f, NSHeight([view2 frame]));
	EXPECT_FLOAT_EQ(102.0f, NSMinX([view2 frame]));
	EXPECT_FLOAT_EQ(0.0f, NSMinY([view2 frame]));

	EXPECT_FLOAT_EQ(150.0f, NSWidth([view3 frame]));
	EXPECT_FLOAT_EQ(18.0f, NSHeight([view3 frame]));
	EXPECT_FLOAT_EQ(0.0f, NSMinX([view3 frame]));
	EXPECT_FLOAT_EQ(22.0f, NSMinY([view3 frame]));
	}

	TEST_F(LayoutTest, PreferredHeightForEmptyLayout) {
	SimpleGridLayout layout(NULL);
	EXPECT_FLOAT_EQ(0.0f, layout.GetPreferredHeightForWidth(100.0));
	}

	TEST_F(LayoutTest, SimpleGridLayoutHeightForWidth)
	{
	SimpleGridLayout layout(NULL);
	layout.AddRow();
	layout.GetLastValidColumnSet()->AddColumn(0.6f);

	base::scoped_nsobject<NSView> view1 = CreateViewWithHeight(22.0f);
	layout.AddView(view1);
	EXPECT_FLOAT_EQ(22.0f, layout.GetPreferredHeightForWidth(100.0));

	layout.AddPaddingRow(12);
	EXPECT_FLOAT_EQ(34.0f, layout.GetPreferredHeightForWidth(100.0));

	layout.AddRow();
	layout.GetLastValidColumnSet()->AddColumn(0.6f);
	base::scoped_nsobject<NSView> view2 = CreateViewWithHeight(13.0f);
	layout.AddView(view2);
	EXPECT_FLOAT_EQ(47.0f, layout.GetPreferredHeightForWidth(100.0));
	}

	TEST_F(LayoutTest, SkipColumns) {
	ColumnLayout layout(NULL);

	ASSERT_TRUE(layout.GetLastValidColumnSet() != NULL);
	layout.GetLastValidColumnSet()->AddColumn(0.6f);
	layout.GetLastValidColumnSet()->AddColumn(0.6f);
	layout.GetLastValidColumnSet()->AddColumn(0.4f);
	layout.GetLastValidColumnSet()->AddColumn(0.6f);
	layout.GetLastValidColumnSet()->AddPaddingColumn(30);
	layout.GetLastValidColumnSet()->AddColumn(0.6f);

	// Skip a single column
	EXPECT_EQ(0, layout.next_column());
	layout.SkipColumns(1);
	EXPECT_EQ(1, layout.next_column());

	// Skip multiple columns
	layout.SkipColumns(2);
	EXPECT_EQ(3, layout.next_column());

	// SkipColumns skips padding, too
	layout.SkipColumns(1);
	EXPECT_EQ(5, layout.next_column());
	}

	TEST_F(LayoutTest, SkipPaddingColumns) {
	ColumnLayout layout(NULL);

	ASSERT_TRUE(layout.GetLastValidColumnSet() != NULL);
	layout.GetLastValidColumnSet()->AddColumn(0.6f);
	layout.GetLastValidColumnSet()->AddPaddingColumn(30);
	layout.GetLastValidColumnSet()->AddColumn(0.4f);
	layout.GetLastValidColumnSet()->AddPaddingColumn(30);
	layout.GetLastValidColumnSet()->AddPaddingColumn(30);
	layout.GetLastValidColumnSet()->AddColumn(0.4f);

	// Don't skip over non-padding columns.
	EXPECT_EQ(0, layout.next_column());
	layout.SkipPaddingColumns();
	EXPECT_EQ(0, layout.next_column());

	// Skip a single padding column.
	layout.AdvanceColumn();
	EXPECT_EQ(1, layout.next_column());
	layout.SkipPaddingColumns();
	EXPECT_EQ(2, layout.next_column());

	// Skip multiple padding columns.
	layout.AdvanceColumn();
	EXPECT_EQ(3, layout.next_column());
	layout.SkipPaddingColumns();
	EXPECT_EQ(5, layout.next_column());
	}

	TEST_F(LayoutTest, SizeColumnsAdjustLocationAndSize) {
	ColumnLayout layout(NULL);

	ASSERT_TRUE(layout.GetLastValidColumnSet() != NULL);
	layout.GetLastValidColumnSet()->AddColumn(0.6f);
	layout.GetLastValidColumnSet()->AddPaddingColumn(30);
	layout.GetLastValidColumnSet()->AddColumn(0.4f);

	layout.SizeRowsAndColumns(130.0f);
	EXPECT_FLOAT_EQ(0.0f, layout.GetLastValidColumnSet()->ColumnLocation(0));
	EXPECT_FLOAT_EQ(60.0f, layout.GetLastValidColumnSet()->GetColumnWidth(0));
	EXPECT_FLOAT_EQ(60.0f, layout.GetLastValidColumnSet()->ColumnLocation(1));
	EXPECT_FLOAT_EQ(30.0f, layout.GetLastValidColumnSet()->GetColumnWidth(1));
	EXPECT_FLOAT_EQ(90.0f, layout.GetLastValidColumnSet()->ColumnLocation(2));
	EXPECT_FLOAT_EQ(40.0f, layout.GetLastValidColumnSet()->GetColumnWidth(2));
	}

	TEST_F(LayoutTest, AddViewSkipsPaddingColumns) {
	ColumnLayout layout(NULL);

	ASSERT_TRUE(layout.GetLastValidColumnSet() != NULL);
	layout.GetLastValidColumnSet()->AddColumn(0.6f);
	layout.GetLastValidColumnSet()->AddPaddingColumn(30);
	layout.GetLastValidColumnSet()->AddColumn(0.4f);

	EXPECT_EQ(0, layout.next_column());
	base::scoped_nsobject<NSView> view1 = CreateViewWithWidth(37.0f);
	layout.AddView(view1);
	EXPECT_EQ(2, layout.next_column());
	}

	TEST_F(LayoutTest, ColumnLayoutAdjustsViews) {
	ColumnLayout layout(NULL);

	ASSERT_TRUE(layout.GetLastValidColumnSet() != NULL);
	layout.GetLastValidColumnSet()->AddColumn(0.6f);
	layout.GetLastValidColumnSet()->AddPaddingColumn(30);
	layout.GetLastValidColumnSet()->AddColumn(0.4f);

	base::scoped_nsobject<NSView> view1 = CreateViewWithWidth(37.0f);
	base::scoped_nsobject<NSView> view2 = CreateViewWithWidth(42.0f);
	layout.AddView(view1);
	layout.AddView(view2);

	base::scoped_nsobject<NSView> host_view = CreateViewWithWidth(150.0f);
	layout.Layout(host_view);

	EXPECT_FLOAT_EQ(72.0f, NSWidth([view1 frame]));
	EXPECT_FLOAT_EQ(48.0f, NSWidth([view2 frame]));
	}

	TEST_F(LayoutTest, ColumnSetAddPadding) {
	ColumnSet columns(0);

	columns.AddPaddingColumn(20);
	EXPECT_EQ(1, columns.num_columns());

	columns.CalculateSize(20.0f);
	EXPECT_FLOAT_EQ(20.0f, columns.GetColumnWidth(0));

	columns.CalculateSize(120.0f);
	EXPECT_FLOAT_EQ(20.0f, columns.GetColumnWidth(0));
	}

	TEST_F(LayoutTest, ColumnSetOneFlexibleColumn) {
	ColumnSet columns(0);

	columns.AddColumn(1.0f);
	EXPECT_EQ(1, columns.num_columns());

	columns.CalculateSize(20.0f);
	EXPECT_FLOAT_EQ(20.0f, columns.GetColumnWidth(0));

	columns.CalculateSize(120.0f);
	EXPECT_FLOAT_EQ(120.0f, columns.GetColumnWidth(0));
	}

	TEST_F(LayoutTest, ColumnSetTwoFlexibleColumns) {
	ColumnSet columns(0);

	columns.AddColumn(0.6f);
	columns.AddColumn(0.4f);
	EXPECT_EQ(2, columns.num_columns());

	columns.CalculateSize(100.0f);
	EXPECT_FLOAT_EQ(60.0f, columns.GetColumnWidth(0));
	EXPECT_FLOAT_EQ(40.0f, columns.GetColumnWidth(1));

	columns.CalculateSize(150.0f);
	EXPECT_FLOAT_EQ(90.0f, columns.GetColumnWidth(0));
	EXPECT_FLOAT_EQ(60.0f, columns.GetColumnWidth(1));
	}

	TEST_F(LayoutTest, ColumnSetMixedColumns) {
	ColumnSet columns(0);

	columns.AddColumn(0.6f);
	columns.AddPaddingColumn(20);
	columns.AddColumn(0.4f);
	EXPECT_EQ(3, columns.num_columns());

	columns.CalculateSize(100.0f);
	EXPECT_FLOAT_EQ(48.0f, columns.GetColumnWidth(0));
	EXPECT_FLOAT_EQ(20.0f, columns.GetColumnWidth(1));
	EXPECT_FLOAT_EQ(32.0f, columns.GetColumnWidth(2));

	columns.CalculateSize(200.0f);
	EXPECT_FLOAT_EQ(108.0f, columns.GetColumnWidth(0));
	EXPECT_FLOAT_EQ(20.0f, columns.GetColumnWidth(1));
	EXPECT_FLOAT_EQ(72.0f, columns.GetColumnWidth(2));
	}

	} // namespace