| // Copyright 2017 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/web/public/web_state/page_display_state.h" |
| |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| #define EXPECT_NAN(value) EXPECT_NE(value, value) |
| |
| #if !defined(__has_feature) || !__has_feature(objc_arc) |
| #error "This file requires ARC support." |
| #endif |
| |
| // Tests that the empty constructor creates an invalid PageDisplayState with all |
| // NAN values. |
| TEST(PageDisplayStateTest, EmptyConstructor) { |
| web::PageDisplayState state; |
| EXPECT_NAN(state.scroll_state().offset_x()); |
| EXPECT_NAN(state.scroll_state().offset_y()); |
| EXPECT_NAN(state.zoom_state().minimum_zoom_scale()); |
| EXPECT_NAN(state.zoom_state().maximum_zoom_scale()); |
| EXPECT_NAN(state.zoom_state().zoom_scale()); |
| EXPECT_FALSE(state.IsValid()); |
| } |
| |
| // Tests that the constructor with input states correctly populates the display |
| // state. |
| TEST(PageDisplayStateTest, StatesConstructor) { |
| web::PageScrollState scroll_state(0.0, 1.0); |
| EXPECT_EQ(0.0, scroll_state.offset_x()); |
| EXPECT_EQ(1.0, scroll_state.offset_y()); |
| EXPECT_TRUE(scroll_state.IsValid()); |
| web::PageZoomState zoom_state(1.0, 5.0, 1.0); |
| EXPECT_EQ(1.0, zoom_state.minimum_zoom_scale()); |
| EXPECT_EQ(5.0, zoom_state.maximum_zoom_scale()); |
| EXPECT_EQ(1.0, zoom_state.zoom_scale()); |
| EXPECT_TRUE(zoom_state.IsValid()); |
| web::PageDisplayState state(scroll_state, zoom_state); |
| EXPECT_EQ(scroll_state.offset_x(), state.scroll_state().offset_x()); |
| EXPECT_EQ(scroll_state.offset_y(), state.scroll_state().offset_y()); |
| EXPECT_EQ(zoom_state.minimum_zoom_scale(), |
| state.zoom_state().minimum_zoom_scale()); |
| EXPECT_EQ(zoom_state.maximum_zoom_scale(), |
| state.zoom_state().maximum_zoom_scale()); |
| EXPECT_EQ(zoom_state.zoom_scale(), state.zoom_state().zoom_scale()); |
| EXPECT_TRUE(state.IsValid()); |
| } |
| |
| // Tests the constructor with value inputs. |
| TEST(PageDisplayStateTest, ValuesConstructor) { |
| web::PageDisplayState state(0.0, 1.0, 1.0, 5.0, 1.0); |
| EXPECT_EQ(0.0, state.scroll_state().offset_x()); |
| EXPECT_EQ(1.0, state.scroll_state().offset_y()); |
| EXPECT_EQ(1.0, state.zoom_state().minimum_zoom_scale()); |
| EXPECT_EQ(5.0, state.zoom_state().maximum_zoom_scale()); |
| EXPECT_EQ(1.0, state.zoom_state().zoom_scale()); |
| EXPECT_TRUE(state.IsValid()); |
| } |
| |
| // Tests converting between a PageDisplayState, its serialization, and back. |
| TEST(PageDisplayStateTest, Serialization) { |
| web::PageDisplayState state(0.0, 1.0, 1.0, 5.0, 1.0); |
| web::PageDisplayState new_state(state.GetSerialization()); |
| EXPECT_EQ(state, new_state); |
| } |