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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "core/layout/LayoutText.h" | 5 #include "core/layout/LayoutText.h" |
6 | 6 |
7 #include "core/layout/LayoutTestHelper.h" | 7 #include "core/layout/LayoutTestHelper.h" |
8 #include "core/layout/line/InlineTextBox.h" | 8 #include "core/layout/line/InlineTextBox.h" |
9 #include "testing/gtest/include/gtest/gtest.h" | 9 #include "testing/gtest/include/gtest/gtest.h" |
10 | 10 |
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36 TEST_F(LayoutTextTest, WidthMaxFromZeroLength) { | 36 TEST_F(LayoutTextTest, WidthMaxFromZeroLength) { |
37 setBasicBody(kTacoText); | 37 setBasicBody(kTacoText); |
38 ASSERT_EQ(0, getBasicText()->width(std::numeric_limits<unsigned>::max(), 0u, | 38 ASSERT_EQ(0, getBasicText()->width(std::numeric_limits<unsigned>::max(), 0u, |
39 LayoutUnit(), LTR, false)); | 39 LayoutUnit(), LTR, false)); |
40 } | 40 } |
41 | 41 |
42 TEST_F(LayoutTextTest, WidthZeroFromMaxLength) { | 42 TEST_F(LayoutTextTest, WidthZeroFromMaxLength) { |
43 setBasicBody(kTacoText); | 43 setBasicBody(kTacoText); |
44 float width = getBasicText()->width(0u, std::numeric_limits<unsigned>::max(), | 44 float width = getBasicText()->width(0u, std::numeric_limits<unsigned>::max(), |
45 LayoutUnit(), LTR, false); | 45 LayoutUnit(), LTR, false); |
46 // Width may vary by platform and we just want to make sure it's something rou
ghly reasonable. | 46 // Width may vary by platform and we just want to make sure it's something |
| 47 // roughly reasonable. |
47 ASSERT_GE(width, 100.f); | 48 ASSERT_GE(width, 100.f); |
48 ASSERT_LE(width, 160.f); | 49 ASSERT_LE(width, 160.f); |
49 } | 50 } |
50 | 51 |
51 TEST_F(LayoutTextTest, WidthMaxFromMaxLength) { | 52 TEST_F(LayoutTextTest, WidthMaxFromMaxLength) { |
52 setBasicBody(kTacoText); | 53 setBasicBody(kTacoText); |
53 ASSERT_EQ(0, getBasicText()->width(std::numeric_limits<unsigned>::max(), | 54 ASSERT_EQ(0, getBasicText()->width(std::numeric_limits<unsigned>::max(), |
54 std::numeric_limits<unsigned>::max(), | 55 std::numeric_limits<unsigned>::max(), |
55 LayoutUnit(), LTR, false)); | 56 LayoutUnit(), LTR, false)); |
56 } | 57 } |
57 | 58 |
58 TEST_F(LayoutTextTest, WidthWithHugeLengthAvoidsOverflow) { | 59 TEST_F(LayoutTextTest, WidthWithHugeLengthAvoidsOverflow) { |
59 // The test case from http://crbug.com/647820 uses a 288-length string, so for
posterity we follow that closely. | 60 // The test case from http://crbug.com/647820 uses a 288-length string, so for |
| 61 // posterity we follow that closely. |
60 setBodyInnerHTML( | 62 setBodyInnerHTML( |
61 "<div " | 63 "<div " |
62 "id='target'>" | 64 "id='target'>" |
63 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" | 65 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" |
64 "xxxx" | 66 "xxxx" |
65 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" | 67 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" |
66 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" | 68 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" |
67 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" | 69 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" |
68 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" | 70 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" |
69 "</div>"); | 71 "</div>"); |
70 // Width may vary by platform and we just want to make sure it's something rou
ghly reasonable. | 72 // Width may vary by platform and we just want to make sure it's something |
| 73 // roughly reasonable. |
71 float width = | 74 float width = |
72 getBasicText()->width(23u, 4294967282u, LayoutUnit(2.59375), RTL, false); | 75 getBasicText()->width(23u, 4294967282u, LayoutUnit(2.59375), RTL, false); |
73 ASSERT_GE(width, 100.f); | 76 ASSERT_GE(width, 100.f); |
74 ASSERT_LE(width, 300.f); | 77 ASSERT_LE(width, 300.f); |
75 } | 78 } |
76 | 79 |
77 TEST_F(LayoutTextTest, WidthFromBeyondLength) { | 80 TEST_F(LayoutTextTest, WidthFromBeyondLength) { |
78 setBasicBody("x"); | 81 setBasicBody("x"); |
79 ASSERT_EQ(0u, getBasicText()->width(1u, 1u, LayoutUnit(), LTR, false)); | 82 ASSERT_EQ(0u, getBasicText()->width(1u, 1u, LayoutUnit(), LTR, false)); |
80 } | 83 } |
81 | 84 |
82 TEST_F(LayoutTextTest, WidthLengthBeyondLength) { | 85 TEST_F(LayoutTextTest, WidthLengthBeyondLength) { |
83 setBasicBody("x"); | 86 setBasicBody("x"); |
84 // Width may vary by platform and we just want to make sure it's something rou
ghly reasonable. | 87 // Width may vary by platform and we just want to make sure it's something |
| 88 // roughly reasonable. |
85 float width = getBasicText()->width(0u, 2u, LayoutUnit(), LTR, false); | 89 float width = getBasicText()->width(0u, 2u, LayoutUnit(), LTR, false); |
86 ASSERT_GE(width, 4.f); | 90 ASSERT_GE(width, 4.f); |
87 ASSERT_LE(width, 20.f); | 91 ASSERT_LE(width, 20.f); |
88 } | 92 } |
89 | 93 |
90 } // namespace blink | 94 } // namespace blink |
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