Client side name cleanup

mojo/services/public/cpp/view_manager/tests/view_tree_node_unittest.cc

-// Copyright 2014 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 "mojo/services/public/cpp/view_manager/view_tree_node.h"
-
-#include "base/logging.h"
-#include "base/strings/stringprintf.h"
-#include "mojo/services/public/cpp/view_manager/lib/view_tree_node_private.h"
-#include "mojo/services/public/cpp/view_manager/util.h"
-#include "mojo/services/public/cpp/view_manager/view_tree_node_observer.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace mojo {
-namespace view_manager {
-
-// ViewTreeNode ----------------------------------------------------------------
-
-typedef testing::Test ViewTreeNodeTest;
-
-// Subclass with public ctor/dtor.
-class TestViewTreeNode : public ViewTreeNode {
- public:
-  TestViewTreeNode() {
-    ViewTreeNodePrivate(this).set_id(1);
-  }
-  ~TestViewTreeNode() {}
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(TestViewTreeNode);
-};
-
-TEST_F(ViewTreeNodeTest, AddChild) {
-  TestViewTreeNode v1;
-  TestViewTreeNode v11;
-  v1.AddChild(&v11);
-  EXPECT_EQ(1U, v1.children().size());
-}
-
-TEST_F(ViewTreeNodeTest, RemoveChild) {
-  TestViewTreeNode v1;
-  TestViewTreeNode v11;
-  v1.AddChild(&v11);
-  EXPECT_EQ(1U, v1.children().size());
-  v1.RemoveChild(&v11);
-  EXPECT_EQ(0U, v1.children().size());
-}
-
-TEST_F(ViewTreeNodeTest, Reparent) {
-  TestViewTreeNode v1;
-  TestViewTreeNode v2;
-  TestViewTreeNode v11;
-  v1.AddChild(&v11);
-  EXPECT_EQ(1U, v1.children().size());
-  v2.AddChild(&v11);
-  EXPECT_EQ(1U, v2.children().size());
-  EXPECT_EQ(0U, v1.children().size());
-}
-
-TEST_F(ViewTreeNodeTest, Contains) {
-  TestViewTreeNode v1;
-
-  // Direct descendant.
-  TestViewTreeNode v11;
-  v1.AddChild(&v11);
-  EXPECT_TRUE(v1.Contains(&v11));
-
-  // Indirect descendant.
-  TestViewTreeNode v111;
-  v11.AddChild(&v111);
-  EXPECT_TRUE(v1.Contains(&v111));
-}
-
-TEST_F(ViewTreeNodeTest, GetChildById) {
-  TestViewTreeNode v1;
-  ViewTreeNodePrivate(&v1).set_id(1);
-  TestViewTreeNode v11;
-  ViewTreeNodePrivate(&v11).set_id(11);
-  v1.AddChild(&v11);
-  TestViewTreeNode v111;
-  ViewTreeNodePrivate(&v111).set_id(111);
-  v11.AddChild(&v111);
-
-  // Find direct & indirect descendents.
-  EXPECT_EQ(&v11, v1.GetChildById(v11.id()));
-  EXPECT_EQ(&v111, v1.GetChildById(v111.id()));
-}
-
-// ViewTreeNodeObserver --------------------------------------------------------
-
-typedef testing::Test ViewTreeNodeObserverTest;
-
-bool TreeChangeParamsMatch(const ViewTreeNodeObserver::TreeChangeParams& lhs,
-                           const ViewTreeNodeObserver::TreeChangeParams& rhs) {
-  return lhs.target == rhs.target &&  lhs.old_parent == rhs.old_parent &&
-      lhs.new_parent == rhs.new_parent && lhs.receiver == rhs.receiver &&
-      lhs.phase == rhs.phase;
-}
-
-class TreeChangeObserver : public ViewTreeNodeObserver {
- public:
-  explicit TreeChangeObserver(ViewTreeNode* observee) : observee_(observee) {
-    observee_->AddObserver(this);
-  }
-  virtual ~TreeChangeObserver() {
-    observee_->RemoveObserver(this);
-  }
-
-  void Reset() {
-    received_params_.clear();
-  }
-
-  const std::vector<TreeChangeParams>& received_params() {
-    return received_params_;
-  }
-
- private:
-  // Overridden from ViewTreeNodeObserver:
-  virtual void OnTreeChange(const TreeChangeParams& params) OVERRIDE {
-    received_params_.push_back(params);
-  }
-
-  ViewTreeNode* observee_;
-  std::vector<TreeChangeParams> received_params_;
-
-  DISALLOW_COPY_AND_ASSIGN(TreeChangeObserver);
-};
-
-// Adds/Removes v11 to v1.
-TEST_F(ViewTreeNodeObserverTest, TreeChange_SimpleAddRemove) {
-  TestViewTreeNode v1;
-  TreeChangeObserver o1(&v1);
-  EXPECT_TRUE(o1.received_params().empty());
-
-  TestViewTreeNode v11;
-  TreeChangeObserver o11(&v11);
-  EXPECT_TRUE(o11.received_params().empty());
-
-  // Add.
-
-  v1.AddChild(&v11);
-
-  EXPECT_EQ(2U, o1.received_params().size());
-  ViewTreeNodeObserver::TreeChangeParams p1;
-  p1.target = &v11;
-  p1.receiver = &v1;
-  p1.old_parent = NULL;
-  p1.new_parent = &v1;
-  p1.phase = ViewTreeNodeObserver::DISPOSITION_CHANGED;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1, o1.received_params().back()));
-
-  EXPECT_EQ(2U, o11.received_params().size());
-  ViewTreeNodeObserver::TreeChangeParams p11 = p1;
-  p11.receiver = &v11;
-  p11.phase = ViewTreeNodeObserver::DISPOSITION_CHANGING;
-  EXPECT_TRUE(TreeChangeParamsMatch(p11, o11.received_params().front()));
-  p11.phase = ViewTreeNodeObserver::DISPOSITION_CHANGED;
-  EXPECT_TRUE(TreeChangeParamsMatch(p11, o11.received_params().back()));
-
-  o1.Reset();
-  o11.Reset();
-  EXPECT_TRUE(o1.received_params().empty());
-  EXPECT_TRUE(o11.received_params().empty());
-
-  // Remove.
-
-  v1.RemoveChild(&v11);
-
-  EXPECT_EQ(2U, o1.received_params().size());
-  p1.target = &v11;
-  p1.receiver = &v1;
-  p1.old_parent = &v1;
-  p1.new_parent = NULL;
-  p1.phase = ViewTreeNodeObserver::DISPOSITION_CHANGING;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1, o1.received_params().front()));
-
-  EXPECT_EQ(2U, o11.received_params().size());
-  p11 = p1;
-  p11.receiver = &v11;
-  EXPECT_TRUE(TreeChangeParamsMatch(p11, o11.received_params().front()));
-  p11.phase = ViewTreeNodeObserver::DISPOSITION_CHANGED;
-  EXPECT_TRUE(TreeChangeParamsMatch(p11, o11.received_params().back()));
-}
-
-// Creates these two trees:
-// v1
-//  +- v11
-// v111
-//  +- v1111
-//  +- v1112
-// Then adds/removes v111 from v11.
-TEST_F(ViewTreeNodeObserverTest, TreeChange_NestedAddRemove) {
-  TestViewTreeNode v1, v11, v111, v1111, v1112;
-
-  // Root tree.
-  v1.AddChild(&v11);
-
-  // Tree to be attached.
-  v111.AddChild(&v1111);
-  v111.AddChild(&v1112);
-
-  TreeChangeObserver o1(&v1), o11(&v11), o111(&v111), o1111(&v1111),
-      o1112(&v1112);
-  ViewTreeNodeObserver::TreeChangeParams p1, p11, p111, p1111, p1112;
-
-  // Add.
-
-  v11.AddChild(&v111);
-
-  EXPECT_EQ(2U, o1.received_params().size());
-  p1.target = &v111;
-  p1.receiver = &v1;
-  p1.old_parent = NULL;
-  p1.new_parent = &v11;
-  p1.phase = ViewTreeNodeObserver::DISPOSITION_CHANGED;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1, o1.received_params().back()));
-
-  EXPECT_EQ(2U, o11.received_params().size());
-  p11 = p1;
-  p11.receiver = &v11;
-  EXPECT_TRUE(TreeChangeParamsMatch(p11, o11.received_params().back()));
-
-  EXPECT_EQ(2U, o111.received_params().size());
-  p111 = p11;
-  p111.receiver = &v111;
-  p111.phase = ViewTreeNodeObserver::DISPOSITION_CHANGING;
-  EXPECT_TRUE(TreeChangeParamsMatch(p111, o111.received_params().front()));
-  p111.phase = ViewTreeNodeObserver::DISPOSITION_CHANGED;
-  EXPECT_TRUE(TreeChangeParamsMatch(p111, o111.received_params().back()));
-
-  EXPECT_EQ(2U, o1111.received_params().size());
-  p1111 = p111;
-  p1111.receiver = &v1111;
-  p1111.phase = ViewTreeNodeObserver::DISPOSITION_CHANGING;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1111, o1111.received_params().front()));
-  p1111.phase = ViewTreeNodeObserver::DISPOSITION_CHANGED;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1111, o1111.received_params().back()));
-
-  EXPECT_EQ(2U, o1112.received_params().size());
-  p1112 = p111;
-  p1112.receiver = &v1112;
-  p1112.phase = ViewTreeNodeObserver::DISPOSITION_CHANGING;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1112, o1112.received_params().front()));
-  p1112.phase = ViewTreeNodeObserver::DISPOSITION_CHANGED;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1112, o1112.received_params().back()));
-
-  // Remove.
-  o1.Reset();
-  o11.Reset();
-  o111.Reset();
-  o1111.Reset();
-  o1112.Reset();
-  EXPECT_TRUE(o1.received_params().empty());
-  EXPECT_TRUE(o11.received_params().empty());
-  EXPECT_TRUE(o111.received_params().empty());
-  EXPECT_TRUE(o1111.received_params().empty());
-  EXPECT_TRUE(o1112.received_params().empty());
-
-  v11.RemoveChild(&v111);
-
-  EXPECT_EQ(2U, o1.received_params().size());
-  p1.target = &v111;
-  p1.receiver = &v1;
-  p1.old_parent = &v11;
-  p1.new_parent = NULL;
-  p1.phase = ViewTreeNodeObserver::DISPOSITION_CHANGING;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1, o1.received_params().front()));
-
-  EXPECT_EQ(2U, o11.received_params().size());
-  p11 = p1;
-  p11.receiver = &v11;
-  EXPECT_TRUE(TreeChangeParamsMatch(p11, o11.received_params().front()));
-
-  EXPECT_EQ(2U, o111.received_params().size());
-  p111 = p11;
-  p111.receiver = &v111;
-  p111.phase = ViewTreeNodeObserver::DISPOSITION_CHANGING;
-  EXPECT_TRUE(TreeChangeParamsMatch(p111, o111.received_params().front()));
-  p111.phase = ViewTreeNodeObserver::DISPOSITION_CHANGED;
-  EXPECT_TRUE(TreeChangeParamsMatch(p111, o111.received_params().back()));
-
-  EXPECT_EQ(2U, o1111.received_params().size());
-  p1111 = p111;
-  p1111.receiver = &v1111;
-  p1111.phase = ViewTreeNodeObserver::DISPOSITION_CHANGING;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1111, o1111.received_params().front()));
-  p1111.phase = ViewTreeNodeObserver::DISPOSITION_CHANGED;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1111, o1111.received_params().back()));
-
-  EXPECT_EQ(2U, o1112.received_params().size());
-  p1112 = p111;
-  p1112.receiver = &v1112;
-  p1112.phase = ViewTreeNodeObserver::DISPOSITION_CHANGING;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1112, o1112.received_params().front()));
-  p1112.phase = ViewTreeNodeObserver::DISPOSITION_CHANGED;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1112, o1112.received_params().back()));
-}
-
-TEST_F(ViewTreeNodeObserverTest, TreeChange_Reparent) {
-  TestViewTreeNode v1, v11, v12, v111;
-  v1.AddChild(&v11);
-  v1.AddChild(&v12);
-  v11.AddChild(&v111);
-
-  TreeChangeObserver o1(&v1), o11(&v11), o12(&v12), o111(&v111);
-
-  // Reparent.
-  v12.AddChild(&v111);
-
-  // v1 (root) should see both changing and changed notifications.
-  EXPECT_EQ(4U, o1.received_params().size());
-  ViewTreeNodeObserver::TreeChangeParams p1;
-  p1.target = &v111;
-  p1.receiver = &v1;
-  p1.old_parent = &v11;
-  p1.new_parent = &v12;
-  p1.phase = ViewTreeNodeObserver::DISPOSITION_CHANGING;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1, o1.received_params().front()));
-  p1.phase = ViewTreeNodeObserver::DISPOSITION_CHANGED;
-  EXPECT_TRUE(TreeChangeParamsMatch(p1, o1.received_params().back()));
-
-  // v11 should see changing notifications.
-  EXPECT_EQ(2U, o11.received_params().size());
-  ViewTreeNodeObserver::TreeChangeParams p11;
-  p11 = p1;
-  p11.receiver = &v11;
-  p11.phase = ViewTreeNodeObserver::DISPOSITION_CHANGING;
-  EXPECT_TRUE(TreeChangeParamsMatch(p11, o11.received_params().front()));
-
-  // v12 should see changed notifications.
-  EXPECT_EQ(2U, o12.received_params().size());
-  ViewTreeNodeObserver::TreeChangeParams p12;
-  p12 = p1;
-  p12.receiver = &v12;
-  p12.phase = ViewTreeNodeObserver::DISPOSITION_CHANGED;
-  EXPECT_TRUE(TreeChangeParamsMatch(p12, o12.received_params().back()));
-
-  // v111 should see both changing and changed notifications.
-  EXPECT_EQ(2U, o111.received_params().size());
-  ViewTreeNodeObserver::TreeChangeParams p111;
-  p111 = p1;
-  p111.receiver = &v111;
-  p111.phase = ViewTreeNodeObserver::DISPOSITION_CHANGING;
-  EXPECT_TRUE(TreeChangeParamsMatch(p111, o111.received_params().front()));
-  p111.phase = ViewTreeNodeObserver::DISPOSITION_CHANGED;
-  EXPECT_TRUE(TreeChangeParamsMatch(p111, o111.received_params().back()));
-}
-
-namespace {
-
-class OrderChangeObserver : public ViewTreeNodeObserver {
- public:
-  struct Change {
-    ViewTreeNode* node;
-    ViewTreeNode* relative_node;
-    OrderDirection direction;
-    DispositionChangePhase phase;
-  };
-  typedef std::vector<Change> Changes;
-
-  explicit OrderChangeObserver(ViewTreeNode* observee) : observee_(observee) {
-    observee_->AddObserver(this);
-  }
-  virtual ~OrderChangeObserver() {
-    observee_->RemoveObserver(this);
-  }
-
-  Changes GetAndClearChanges() {
-    Changes changes;
-    changes_.swap(changes);
-    return changes;
-  }
-
- private:
-  // Overridden from ViewTreeNodeObserver:
-  virtual void OnNodeReordered(ViewTreeNode* node,
-                               ViewTreeNode* relative_node,
-                               OrderDirection direction,
-                               DispositionChangePhase phase) OVERRIDE {
-    Change change;
-    change.node = node;
-    change.relative_node = relative_node;
-    change.direction = direction;
-    change.phase = phase;
-    changes_.push_back(change);
-  }
-
-  ViewTreeNode* observee_;
-  Changes changes_;
-
-  DISALLOW_COPY_AND_ASSIGN(OrderChangeObserver);
-};
-
-}  // namespace
-
-TEST_F(ViewTreeNodeObserverTest, Order) {
-  TestViewTreeNode v1, v11, v12, v13;
-  v1.AddChild(&v11);
-  v1.AddChild(&v12);
-  v1.AddChild(&v13);
-
-  // Order: v11, v12, v13
-  EXPECT_EQ(3U, v1.children().size());
-  EXPECT_EQ(&v11, v1.children().front());
-  EXPECT_EQ(&v13, v1.children().back());
-
-  {
-    OrderChangeObserver observer(&v11);
-
-    // Move v11 to front.
-    // Resulting order: v12, v13, v11
-    v11.MoveToFront();
-    EXPECT_EQ(&v12, v1.children().front());
-    EXPECT_EQ(&v11, v1.children().back());
-
-    OrderChangeObserver::Changes changes = observer.GetAndClearChanges();
-    EXPECT_EQ(2U, changes.size());
-    EXPECT_EQ(&v11, changes[0].node);
-    EXPECT_EQ(&v13, changes[0].relative_node);
-    EXPECT_EQ(ORDER_ABOVE, changes[0].direction);
-    EXPECT_EQ(ViewTreeNodeObserver::DISPOSITION_CHANGING, changes[0].phase);
-
-    EXPECT_EQ(&v11, changes[1].node);
-    EXPECT_EQ(&v13, changes[1].relative_node);
-    EXPECT_EQ(ORDER_ABOVE, changes[1].direction);
-    EXPECT_EQ(ViewTreeNodeObserver::DISPOSITION_CHANGED, changes[1].phase);
-  }
-
-  {
-    OrderChangeObserver observer(&v11);
-
-    // Move v11 to back.
-    // Resulting order: v11, v12, v13
-    v11.MoveToBack();
-    EXPECT_EQ(&v11, v1.children().front());
-    EXPECT_EQ(&v13, v1.children().back());
-
-    OrderChangeObserver::Changes changes = observer.GetAndClearChanges();
-    EXPECT_EQ(2U, changes.size());
-    EXPECT_EQ(&v11, changes[0].node);
-    EXPECT_EQ(&v12, changes[0].relative_node);
-    EXPECT_EQ(ORDER_BELOW, changes[0].direction);
-    EXPECT_EQ(ViewTreeNodeObserver::DISPOSITION_CHANGING, changes[0].phase);
-
-    EXPECT_EQ(&v11, changes[1].node);
-    EXPECT_EQ(&v12, changes[1].relative_node);
-    EXPECT_EQ(ORDER_BELOW, changes[1].direction);
-    EXPECT_EQ(ViewTreeNodeObserver::DISPOSITION_CHANGED, changes[1].phase);
-  }
-
-  {
-    OrderChangeObserver observer(&v11);
-
-    // Move v11 above v12.
-    // Resulting order: v12. v11, v13
-    v11.Reorder(&v12, ORDER_ABOVE);
-    EXPECT_EQ(&v12, v1.children().front());
-    EXPECT_EQ(&v13, v1.children().back());
-
-    OrderChangeObserver::Changes changes = observer.GetAndClearChanges();
-    EXPECT_EQ(2U, changes.size());
-    EXPECT_EQ(&v11, changes[0].node);
-    EXPECT_EQ(&v12, changes[0].relative_node);
-    EXPECT_EQ(ORDER_ABOVE, changes[0].direction);
-    EXPECT_EQ(ViewTreeNodeObserver::DISPOSITION_CHANGING, changes[0].phase);
-
-    EXPECT_EQ(&v11, changes[1].node);
-    EXPECT_EQ(&v12, changes[1].relative_node);
-    EXPECT_EQ(ORDER_ABOVE, changes[1].direction);
-    EXPECT_EQ(ViewTreeNodeObserver::DISPOSITION_CHANGED, changes[1].phase);
-  }
-
-  {
-    OrderChangeObserver observer(&v11);
-
-    // Move v11 below v12.
-    // Resulting order: v11, v12, v13
-    v11.Reorder(&v12, ORDER_BELOW);
-    EXPECT_EQ(&v11, v1.children().front());
-    EXPECT_EQ(&v13, v1.children().back());
-
-    OrderChangeObserver::Changes changes = observer.GetAndClearChanges();
-    EXPECT_EQ(2U, changes.size());
-    EXPECT_EQ(&v11, changes[0].node);
-    EXPECT_EQ(&v12, changes[0].relative_node);
-    EXPECT_EQ(ORDER_BELOW, changes[0].direction);
-    EXPECT_EQ(ViewTreeNodeObserver::DISPOSITION_CHANGING, changes[0].phase);
-
-    EXPECT_EQ(&v11, changes[1].node);
-    EXPECT_EQ(&v12, changes[1].relative_node);
-    EXPECT_EQ(ORDER_BELOW, changes[1].direction);
-    EXPECT_EQ(ViewTreeNodeObserver::DISPOSITION_CHANGED, changes[1].phase);
-  }
-}
-
-namespace {
-
-typedef std::vector<std::string> Changes;
-
-std::string NodeIdToString(Id id) {
-  return (id == 0) ? "null" :
-      base::StringPrintf("%d,%d", HiWord(id), LoWord(id));
-}
-
-std::string RectToString(const gfx::Rect& rect) {
-  return base::StringPrintf("%d,%d %dx%d",
-                            rect.x(), rect.y(), rect.width(), rect.height());
-}
-
-std::string PhaseToString(ViewTreeNodeObserver::DispositionChangePhase phase) {
-  return phase == ViewTreeNodeObserver::DISPOSITION_CHANGING ?
-      "changing" : "changed";
-}
-
-class BoundsChangeObserver : public ViewTreeNodeObserver {
- public:
-  explicit BoundsChangeObserver(ViewTreeNode* node) : node_(node) {
-    node_->AddObserver(this);
-  }
-  virtual ~BoundsChangeObserver() {
-    node_->RemoveObserver(this);
-  }
-
-  Changes GetAndClearChanges() {
-    Changes changes;
-    changes.swap(changes_);
-    return changes;
-  }
-
- private:
-  // Overridden from ViewTreeNodeObserver:
-  virtual void OnNodeBoundsChange(ViewTreeNode* node,
-                                  const gfx::Rect& old_bounds,
-                                  const gfx::Rect& new_bounds,
-                                  DispositionChangePhase phase) OVERRIDE {
-    changes_.push_back(
-        base::StringPrintf(
-            "node=%s old_bounds=%s new_bounds=%s phase=%s",
-            NodeIdToString(node->id()).c_str(),
-            RectToString(old_bounds).c_str(),
-            RectToString(new_bounds).c_str(),
-            PhaseToString(phase).c_str()));
-  }
-
-  ViewTreeNode* node_;
-  Changes changes_;
-
-  DISALLOW_COPY_AND_ASSIGN(BoundsChangeObserver);
-};
-
-}  // namespace
-
-TEST_F(ViewTreeNodeObserverTest, SetBounds) {
-  TestViewTreeNode v1;
-  {
-    BoundsChangeObserver observer(&v1);
-    v1.SetBounds(gfx::Rect(0, 0, 100, 100));
-
-    Changes changes = observer.GetAndClearChanges();
-    EXPECT_EQ(2U, changes.size());
-    EXPECT_EQ(
-        "node=0,1 old_bounds=0,0 0x0 new_bounds=0,0 100x100 phase=changing",
-        changes[0]);
-    EXPECT_EQ(
-        "node=0,1 old_bounds=0,0 0x0 new_bounds=0,0 100x100 phase=changed",
-        changes[1]);
-  }
-}
-
-}  // namespace view_manager
-}  // namespace mojo