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// 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.
#include "ash/launcher/launcher_model.h"
#include "ash/launcher/launcher_model_observer.h"
#include "base/stringprintf.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ash {
namespace {
// LauncherModelObserver implementation that tracks what message are invoked.
class TestLauncherModelObserver : public LauncherModelObserver {
public:
TestLauncherModelObserver()
: added_count_(0),
removed_count_(0),
changed_count_(0),
moved_count_(0) {
}
// Returns a string description of the changes that have occurred since this
// was last invoked. Resets state to initial state.
std::string StateStringAndClear() {
std::string result;
AddToResult("added=%d", added_count_, &result);
AddToResult("removed=%d", removed_count_, &result);
AddToResult("changed=%d", changed_count_, &result);
AddToResult("moved=%d", moved_count_, &result);
added_count_ = removed_count_ = changed_count_ = moved_count_ = 0;
return result;
}
// LauncherModelObserver overrides:
virtual void LauncherItemAdded(int index) OVERRIDE {
added_count_++;
}
virtual void LauncherItemRemoved(int index) OVERRIDE {
removed_count_++;
}
virtual void LauncherItemChanged(int index,
const LauncherItem& old_item) OVERRIDE {
changed_count_++;
}
virtual void LauncherItemMoved(int start_index, int target_index) OVERRIDE {
moved_count_++;
}
virtual void LauncherItemWillChange(int index) OVERRIDE {
}
private:
void AddToResult(const std::string& format, int count, std::string* result) {
if (!count)
return;
if (!result->empty())
*result += " ";
*result += base::StringPrintf(format.c_str(), count);
}
int added_count_;
int removed_count_;
int changed_count_;
int moved_count_;
DISALLOW_COPY_AND_ASSIGN(TestLauncherModelObserver);
};
} // namespace
TEST(LauncherModel, BasicAssertions) {
TestLauncherModelObserver observer;
LauncherModel model;
// Model is initially populated with two items.
EXPECT_EQ(2, model.item_count());
// Two initial items should have different ids.
EXPECT_NE(model.items()[0].id, model.items()[1].id);
// Add an item.
model.AddObserver(&observer);
LauncherItem item;
model.Add(0, item);
EXPECT_EQ(3, model.item_count());
// New item should get a unique id.
EXPECT_NE(model.items()[1].id, model.items()[2].id);
EXPECT_EQ("added=1", observer.StateStringAndClear());
// Change a tabbed image.
LauncherID original_id = model.items()[0].id;
model.Set(0, LauncherItem());
EXPECT_EQ(original_id, model.items()[0].id);
EXPECT_EQ("changed=1", observer.StateStringAndClear());
EXPECT_EQ(TYPE_TABBED, model.items()[0].type);
// Remove the item.
model.RemoveItemAt(0);
EXPECT_EQ(2, model.item_count());
EXPECT_EQ("removed=1", observer.StateStringAndClear());
// Add an app item.
item.type = TYPE_APP;
model.Add(0, item);
observer.StateStringAndClear();
// Change everything.
model.Set(0, item);
EXPECT_EQ("changed=1", observer.StateStringAndClear());
EXPECT_EQ(TYPE_APP, model.items()[0].type);
// Add another item.
item.type = TYPE_APP;
model.Add(1, item);
observer.StateStringAndClear();
// Move the second item to be first.
model.Move(1, 0);
EXPECT_EQ("moved=1", observer.StateStringAndClear());
// Move the first item to the second item.
model.Move(0, 1);
EXPECT_EQ("moved=1", observer.StateStringAndClear());
}
} // namespace ash
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