OLD | NEW |
(Empty) | |
| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "content/public/common/page_zoom.h" |
| 6 |
| 7 #include "testing/gtest/include/gtest/gtest.h" |
| 8 |
| 9 TEST(PageZoomTest, ZoomValuesEqual) { |
| 10 // Test two identical values. |
| 11 EXPECT_TRUE(content::ZoomValuesEqual(1.5, 1.5)); |
| 12 |
| 13 // Test two values that are close enough to be considered equal. |
| 14 EXPECT_TRUE(content::ZoomValuesEqual(1.5, 1.49999999)); |
| 15 |
| 16 // Test two values that are close, but should not be considered equal. |
| 17 EXPECT_FALSE(content::ZoomValuesEqual(1.5, 1.4)); |
| 18 } |
| 19 |
| 20 TEST(PageZoomTest, PresetZoomFactors) { |
| 21 // Fetch a vector of preset zoom factors, including a custom value that we |
| 22 // already know is not going to be in the list. |
| 23 double custom_value = 1.05; // 105% |
| 24 std::vector<double> factors = content::PresetZoomFactors(custom_value); |
| 25 |
| 26 // Expect at least 10 zoom factors. |
| 27 EXPECT_GE(factors.size(), 10U); |
| 28 |
| 29 // Expect the first and last items to match the minimum and maximum values. |
| 30 EXPECT_DOUBLE_EQ(factors.front(), content::kMinimumZoomFactor); |
| 31 EXPECT_DOUBLE_EQ(factors.back(), content::kMaximumZoomFactor); |
| 32 |
| 33 // Iterate through the vector, with the following checks: |
| 34 // 1. The values are in sorted order. |
| 35 // 2. The custom value is exists. |
| 36 // 3. The 100% value exists. |
| 37 bool found_custom_value = false; |
| 38 bool found_100_percent = false; |
| 39 double last_value = 0; |
| 40 |
| 41 std::vector<double>::const_iterator i; |
| 42 for (i = factors.begin(); i != factors.end(); ++i) { |
| 43 double factor = *i; |
| 44 EXPECT_GT(factor, last_value); |
| 45 if (content::ZoomValuesEqual(factor, custom_value)) |
| 46 found_custom_value = true; |
| 47 if (content::ZoomValuesEqual(factor, 1.0)) |
| 48 found_100_percent = true; |
| 49 last_value = factor; |
| 50 } |
| 51 |
| 52 EXPECT_TRUE(found_custom_value); |
| 53 EXPECT_TRUE(found_100_percent); |
| 54 } |
| 55 |
| 56 TEST(PageZoomTest, PresetZoomLevels) { |
| 57 // Fetch a vector of preset zoom levels, including a custom value that we |
| 58 // already know is not going to be in the list. |
| 59 double custom_value = 0.1; |
| 60 std::vector<double> levels = content::PresetZoomLevels(custom_value); |
| 61 |
| 62 // Expect at least 10 zoom levels. |
| 63 EXPECT_GE(levels.size(), 10U); |
| 64 |
| 65 // Iterate through the vector, with the following checks: |
| 66 // 1. The values are in sorted order. |
| 67 // 2. The custom value is exists. |
| 68 // 3. The 100% value exists. |
| 69 bool found_custom_value = false; |
| 70 bool found_100_percent = false; |
| 71 double last_value = -99; |
| 72 |
| 73 std::vector<double>::const_iterator i; |
| 74 for (i = levels.begin(); i != levels.end(); ++i) { |
| 75 double level = *i; |
| 76 EXPECT_GT(level, last_value); |
| 77 if (content::ZoomValuesEqual(level, custom_value)) |
| 78 found_custom_value = true; |
| 79 if (content::ZoomValuesEqual(level, 0)) |
| 80 found_100_percent = true; |
| 81 last_value = level; |
| 82 } |
| 83 |
| 84 EXPECT_TRUE(found_custom_value); |
| 85 EXPECT_TRUE(found_100_percent); |
| 86 } |
| 87 |
| 88 TEST(PageZoomTest, InvalidCustomFactor) { |
| 89 double too_low = 0.01; |
| 90 std::vector<double> factors = content::PresetZoomFactors(too_low); |
| 91 EXPECT_FALSE(content::ZoomValuesEqual(factors.front(), too_low)); |
| 92 |
| 93 double too_high = 99.0; |
| 94 factors = content::PresetZoomFactors(too_high); |
| 95 EXPECT_FALSE(content::ZoomValuesEqual(factors.back(), too_high)); |
| 96 } |
| 97 |
| 98 TEST(PageZoomTest, InvalidCustomLevel) { |
| 99 double too_low = -99.0; |
| 100 std::vector<double> levels = content::PresetZoomLevels(too_low); |
| 101 EXPECT_FALSE(content::ZoomValuesEqual(levels.front(), too_low)); |
| 102 |
| 103 double too_high = 99.0; |
| 104 levels = content::PresetZoomLevels(too_high); |
| 105 EXPECT_FALSE(content::ZoomValuesEqual(levels.back(), too_high)); |
| 106 } |
| 107 |
OLD | NEW |