| // Copyright (c) 2011 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/chrome_page_zoom.h" |
| #include "content/public/common/page_zoom.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| TEST(ChromePageZoomTest, PresetZoomFactors) { |
| // Fetch a vector of preset zoom factors, including a custom value that we |
| // already know is not going to be in the list. |
| double custom_value = 1.05; // 105% |
| std::vector<double> factors = |
| chrome_page_zoom::PresetZoomFactors(custom_value); |
| |
| // Expect at least 10 zoom factors. |
| EXPECT_GE(factors.size(), 10U); |
| |
| // Expect the first and last items to match the minimum and maximum values. |
| EXPECT_DOUBLE_EQ(factors.front(), content::kMinimumZoomFactor); |
| EXPECT_DOUBLE_EQ(factors.back(), content::kMaximumZoomFactor); |
| |
| // Iterate through the vector, with the following checks: |
| // 1. The values are in sorted order. |
| // 2. The custom value is exists. |
| // 3. The 100% value exists. |
| bool found_custom_value = false; |
| bool found_100_percent = false; |
| double last_value = 0; |
| |
| std::vector<double>::const_iterator i; |
| for (i = factors.begin(); i != factors.end(); ++i) { |
| double factor = *i; |
| EXPECT_GT(factor, last_value); |
| if (content::ZoomValuesEqual(factor, custom_value)) |
| found_custom_value = true; |
| if (content::ZoomValuesEqual(factor, 1.0)) |
| found_100_percent = true; |
| last_value = factor; |
| } |
| |
| EXPECT_TRUE(found_custom_value); |
| EXPECT_TRUE(found_100_percent); |
| } |
| |
| TEST(ChromePageZoomTest, PresetZoomLevels) { |
| // Fetch a vector of preset zoom levels, including a custom value that we |
| // already know is not going to be in the list. |
| double custom_value = 0.1; |
| std::vector<double> levels = chrome_page_zoom::PresetZoomLevels(custom_value); |
| |
| // Expect at least 10 zoom levels. |
| EXPECT_GE(levels.size(), 10U); |
| |
| // Iterate through the vector, with the following checks: |
| // 1. The values are in sorted order. |
| // 2. The custom value is exists. |
| // 3. The 100% value exists. |
| bool found_custom_value = false; |
| bool found_100_percent = false; |
| double last_value = -99; |
| |
| std::vector<double>::const_iterator i; |
| for (i = levels.begin(); i != levels.end(); ++i) { |
| double level = *i; |
| EXPECT_GT(level, last_value); |
| if (content::ZoomValuesEqual(level, custom_value)) |
| found_custom_value = true; |
| if (content::ZoomValuesEqual(level, 0)) |
| found_100_percent = true; |
| last_value = level; |
| } |
| |
| EXPECT_TRUE(found_custom_value); |
| EXPECT_TRUE(found_100_percent); |
| } |
| |
| TEST(ChromePageZoomTest, InvalidCustomFactor) { |
| double too_low = 0.01; |
| std::vector<double> factors = chrome_page_zoom::PresetZoomFactors(too_low); |
| EXPECT_FALSE(content::ZoomValuesEqual(factors.front(), too_low)); |
| |
| double too_high = 99.0; |
| factors = chrome_page_zoom::PresetZoomFactors(too_high); |
| EXPECT_FALSE(content::ZoomValuesEqual(factors.back(), too_high)); |
| } |
| |
| TEST(ChromePageZoomTest, InvalidCustomLevel) { |
| double too_low = -99.0; |
| std::vector<double> levels = chrome_page_zoom::PresetZoomLevels(too_low); |
| EXPECT_FALSE(content::ZoomValuesEqual(levels.front(), too_low)); |
| |
| double too_high = 99.0; |
| levels = chrome_page_zoom::PresetZoomLevels(too_high); |
| EXPECT_FALSE(content::ZoomValuesEqual(levels.back(), too_high)); |
| } |
| |