Upstream Chrome on iOS source code [4/11].

ios/chrome/browser/ui/fancy_ui/bidi_container_view_unittest.mm

+// Copyright (c) 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/fancy_ui/bidi_container_view.h"
+
+#include "base/i18n/rtl.h"
+#include "base/mac/scoped_nsobject.h"
+#include "testing/platform_test.h"
+
+namespace {
+
+class BidiContainerViewTest : public PlatformTest {
+ protected:
+  void SetUp() override { defaultLocale_ = base::i18n::GetConfiguredLocale(); };
+  void TearDown() override { base::i18n::SetICUDefaultLocale(defaultLocale_); }
+  UIViewAutoresizing AutoresizingMaskForLocale(const char* locale,
+                                               UIViewAutoresizing autoresizing);
+  std::string defaultLocale_;
+};
+
+UIViewAutoresizing BidiContainerViewTest::AutoresizingMaskForLocale(
+    const char* locale,
+    UIViewAutoresizing autoresizing) {
+  base::i18n::SetICUDefaultLocale(base::i18n::GetCanonicalLocale(locale));
+  base::scoped_nsobject<BidiContainerView> view(
+      [[BidiContainerView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)]);
+  base::scoped_nsobject<UILabel> label(
+      [[UILabel alloc] initWithFrame:CGRectMake(20, 30, 40, 50)]);
+  [label setAutoresizingMask:autoresizing];
+  [view addSubview:label];
+  [view layoutSubviews];
+  return [label autoresizingMask];
+}
+
+TEST_F(BidiContainerViewTest, InitializeLeftToRight) {
+  base::i18n::SetICUDefaultLocale(
+      base::i18n::GetCanonicalLocale("en" /* English */));
+  base::scoped_nsobject<BidiContainerView> view(
+      [[BidiContainerView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)]);
+  base::scoped_nsobject<UILabel> label(
+      [[UILabel alloc] initWithFrame:CGRectMake(20, 30, 40, 50)]);
+  [view addSubview:label];
+  [view layoutSubviews];
+  CGRect labelFrame = [label frame];
+  EXPECT_EQ(20, labelFrame.origin.x);
+  EXPECT_EQ(30, labelFrame.origin.y);
+  EXPECT_EQ(40, labelFrame.size.width);
+  EXPECT_EQ(50, labelFrame.size.height);
+}
+
+TEST_F(BidiContainerViewTest, InitializeRightToLeft) {
+  base::i18n::SetICUDefaultLocale(
+      base::i18n::GetCanonicalLocale("he" /* Hebrew */));
+  base::scoped_nsobject<BidiContainerView> view(
+      [[BidiContainerView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)]);
+  base::scoped_nsobject<UILabel> label(
+      [[UILabel alloc] initWithFrame:CGRectMake(20, 30, 40, 50)]);
+  [view addSubview:label];
+  [view layoutSubviews];
+  CGRect labelFrame = [label frame];
+  EXPECT_EQ(100 - 20 - 40 /* view.width - label.originX - label.width */,
+            labelFrame.origin.x);
+  EXPECT_EQ(30, labelFrame.origin.y);
+  EXPECT_EQ(40, labelFrame.size.width);
+  EXPECT_EQ(50, labelFrame.size.height);
+}
+
+TEST_F(BidiContainerViewTest, InitializeRightToLeftTwoViews) {
+  base::i18n::SetICUDefaultLocale(
+      base::i18n::GetCanonicalLocale("he" /* Hebrew */));
+  base::scoped_nsobject<BidiContainerView> view(
+      [[BidiContainerView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)]);
+  base::scoped_nsobject<UILabel> label1(
+      [[UILabel alloc] initWithFrame:CGRectMake(20, 30, 40, 50)]);
+  [view addSubview:label1];
+  base::scoped_nsobject<UILabel> label2(
+      [[UILabel alloc] initWithFrame:CGRectMake(60, 30, 30, 50)]);
+  [view addSubview:label2];
+  [view layoutSubviews];
+  EXPECT_EQ(100 - 20 - 40 /* view.width - label1.originX - label1.width */,
+            [label1 frame].origin.x);
+  EXPECT_EQ(100 - 60 - 30 /* view.width - label2.originX - label2.width */,
+            [label2 frame].origin.x);
+}
+
+TEST_F(BidiContainerViewTest, SetAutoresizingFlexibleLeftForRightToLeft) {
+  UIViewAutoresizing otherFlags =
+      UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleBottomMargin;
+  UIViewAutoresizing testedFlags = UIViewAutoresizingFlexibleLeftMargin;
+  UIViewAutoresizing adjustedFlags =
+      AutoresizingMaskForLocale("he" /* Hebrew */, otherFlags | testedFlags);
+  EXPECT_EQ(UIViewAutoresizingFlexibleRightMargin | otherFlags, adjustedFlags);
+  EXPECT_FALSE(UIViewAutoresizingFlexibleLeftMargin & adjustedFlags);
+}
+
+TEST_F(BidiContainerViewTest, SetAutoresizingFlexibleLeftForLeftToRight) {
+  UIViewAutoresizing otherFlags =
+      UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleBottomMargin;
+  UIViewAutoresizing testedFlags = UIViewAutoresizingFlexibleLeftMargin;
+  UIViewAutoresizing adjustedFlags =
+      AutoresizingMaskForLocale("en" /* English */, otherFlags | testedFlags);
+  EXPECT_EQ(UIViewAutoresizingFlexibleLeftMargin | otherFlags, adjustedFlags);
+  EXPECT_FALSE(UIViewAutoresizingFlexibleRightMargin & adjustedFlags);
+}
+
+TEST_F(BidiContainerViewTest, SetAutoresizingFlexibleRightForRightToLeft) {
+  UIViewAutoresizing otherFlags = UIViewAutoresizingNone;
+  UIViewAutoresizing testedFlags = UIViewAutoresizingFlexibleRightMargin;
+  UIViewAutoresizing adjustedFlags =
+      AutoresizingMaskForLocale("he" /* Hebrew */, otherFlags | testedFlags);
+  EXPECT_EQ(UIViewAutoresizingFlexibleLeftMargin | otherFlags, adjustedFlags);
+  EXPECT_FALSE(UIViewAutoresizingFlexibleRightMargin & adjustedFlags);
+}
+
+TEST_F(BidiContainerViewTest, SetAutoresizingFlexibleRightForLeftToRight) {
+  UIViewAutoresizing otherFlags = UIViewAutoresizingNone;
+  UIViewAutoresizing testedFlags = UIViewAutoresizingFlexibleRightMargin;
+  UIViewAutoresizing adjustedFlags =
+      AutoresizingMaskForLocale("en" /* English */, otherFlags | testedFlags);
+  EXPECT_EQ(UIViewAutoresizingFlexibleRightMargin | otherFlags, adjustedFlags);
+  EXPECT_FALSE(UIViewAutoresizingFlexibleLeftMargin & adjustedFlags);
+}
+
+TEST_F(BidiContainerViewTest, SetAutoresizingFlexibleBothForRightToLeft) {
+  UIViewAutoresizing otherFlags =
+      UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin;
+  UIViewAutoresizing testedFlags = UIViewAutoresizingFlexibleRightMargin |
+                                   UIViewAutoresizingFlexibleLeftMargin;
+  UIViewAutoresizing adjustedFlags =
+      AutoresizingMaskForLocale("he" /* Hebrew */, otherFlags | testedFlags);
+  EXPECT_EQ(UIViewAutoresizingFlexibleRightMargin |
+                UIViewAutoresizingFlexibleLeftMargin | otherFlags,
+            adjustedFlags);
+}
+
+TEST_F(BidiContainerViewTest, SetAutoresizingFlexibleBothForLeftToRight) {
+  UIViewAutoresizing otherFlags =
+      UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin;
+  UIViewAutoresizing testedFlags = UIViewAutoresizingFlexibleRightMargin |
+                                   UIViewAutoresizingFlexibleLeftMargin;
+  UIViewAutoresizing adjustedFlags =
+      AutoresizingMaskForLocale("en" /* English */, otherFlags | testedFlags);
+  EXPECT_EQ(UIViewAutoresizingFlexibleRightMargin |
+                UIViewAutoresizingFlexibleLeftMargin | otherFlags,
+            adjustedFlags);
+}
+
+TEST_F(BidiContainerViewTest, SetAutoresizingFlexibleNoneForRightToLeft) {
+  UIViewAutoresizing flags = UIViewAutoresizingNone;
+  UIViewAutoresizing adjustedFlags =
+      AutoresizingMaskForLocale("he" /* Hebrew */, flags);
+  EXPECT_EQ(flags, adjustedFlags);
+}
+
+TEST_F(BidiContainerViewTest, SetAutoresizingFlexibleNoneForLeftToRight) {
+  UIViewAutoresizing flags = UIViewAutoresizingNone;
+  UIViewAutoresizing adjustedFlags =
+      AutoresizingMaskForLocale("en" /* English */, flags);
+  EXPECT_EQ(flags, adjustedFlags);
+}
+
+}  // namespace