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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 |
| (...skipping 12 matching lines...) Expand all Loading... |
| 23 return toLayoutText(getLayoutObjectByElementId("target")->slowFirstChild()); | 23 return toLayoutText(getLayoutObjectByElementId("target")->slowFirstChild()); |
| 24 } | 24 } |
| 25 }; | 25 }; |
| 26 | 26 |
| 27 const char* kTacoText = "Los Compadres Taco Truck"; | 27 const char* kTacoText = "Los Compadres Taco Truck"; |
| 28 | 28 |
| 29 } // namespace | 29 } // namespace |
| 30 | 30 |
| 31 TEST_F(LayoutTextTest, WidthZeroFromZeroLength) { | 31 TEST_F(LayoutTextTest, WidthZeroFromZeroLength) { |
| 32 setBasicBody(kTacoText); | 32 setBasicBody(kTacoText); |
| 33 ASSERT_EQ(0, getBasicText()->width(0u, 0u, LayoutUnit(), TextDirection::kLtr, | 33 ASSERT_EQ( |
| 34 false)); | 34 0, |
| 35 getBasicText()->width(0u, 0u, LayoutUnit(), TextDirection::kLtr, false)); |
| 35 } | 36 } |
| 36 | 37 |
| 37 TEST_F(LayoutTextTest, WidthMaxFromZeroLength) { | 38 TEST_F(LayoutTextTest, WidthMaxFromZeroLength) { |
| 38 setBasicBody(kTacoText); | 39 setBasicBody(kTacoText); |
| 39 ASSERT_EQ(0, getBasicText()->width(std::numeric_limits<unsigned>::max(), 0u, | 40 ASSERT_EQ(0, |
| 40 LayoutUnit(), TextDirection::kLtr, false)); | 41 getBasicText()->width(std::numeric_limits<unsigned>::max(), 0u, |
| 42 LayoutUnit(), TextDirection::kLtr, false)); |
| 41 } | 43 } |
| 42 | 44 |
| 43 TEST_F(LayoutTextTest, WidthZeroFromMaxLength) { | 45 TEST_F(LayoutTextTest, WidthZeroFromMaxLength) { |
| 44 setBasicBody(kTacoText); | 46 setBasicBody(kTacoText); |
| 45 float width = getBasicText()->width(0u, std::numeric_limits<unsigned>::max(), | 47 float width = getBasicText()->width(0u, std::numeric_limits<unsigned>::max(), |
| 46 LayoutUnit(), TextDirection::kLtr, false); | 48 LayoutUnit(), TextDirection::kLtr, false); |
| 47 // Width may vary by platform and we just want to make sure it's something | 49 // Width may vary by platform and we just want to make sure it's something |
| 48 // roughly reasonable. | 50 // roughly reasonable. |
| 49 ASSERT_GE(width, 100.f); | 51 ASSERT_GE(width, 100.f); |
| 50 ASSERT_LE(width, 160.f); | 52 ASSERT_LE(width, 160.f); |
| 51 } | 53 } |
| 52 | 54 |
| 53 TEST_F(LayoutTextTest, WidthMaxFromMaxLength) { | 55 TEST_F(LayoutTextTest, WidthMaxFromMaxLength) { |
| 54 setBasicBody(kTacoText); | 56 setBasicBody(kTacoText); |
| 55 ASSERT_EQ(0, getBasicText()->width(std::numeric_limits<unsigned>::max(), | 57 ASSERT_EQ(0, |
| 56 std::numeric_limits<unsigned>::max(), | 58 getBasicText()->width(std::numeric_limits<unsigned>::max(), |
| 57 LayoutUnit(), TextDirection::kLtr, false)); | 59 std::numeric_limits<unsigned>::max(), |
| 60 LayoutUnit(), TextDirection::kLtr, false)); |
| 58 } | 61 } |
| 59 | 62 |
| 60 TEST_F(LayoutTextTest, WidthWithHugeLengthAvoidsOverflow) { | 63 TEST_F(LayoutTextTest, WidthWithHugeLengthAvoidsOverflow) { |
| 61 // The test case from http://crbug.com/647820 uses a 288-length string, so for | 64 // The test case from http://crbug.com/647820 uses a 288-length string, so for |
| 62 // posterity we follow that closely. | 65 // posterity we follow that closely. |
| 63 setBodyInnerHTML( | 66 setBodyInnerHTML( |
| 64 "<div " | 67 "<div " |
| 65 "id='target'>" | 68 "id='target'>" |
| 66 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" | 69 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" |
| 67 "xxxx" | 70 "xxxx" |
| 68 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" | 71 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" |
| 69 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" | 72 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" |
| 70 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" | 73 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" |
| 71 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" | 74 "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" |
| 72 "</div>"); | 75 "</div>"); |
| 73 // Width may vary by platform and we just want to make sure it's something | 76 // Width may vary by platform and we just want to make sure it's something |
| 74 // roughly reasonable. | 77 // roughly reasonable. |
| 75 const float width = getBasicText()->width( | 78 const float width = getBasicText()->width( |
| 76 23u, 4294967282u, LayoutUnit(2.59375), TextDirection::kRtl, false); | 79 23u, 4294967282u, LayoutUnit(2.59375), TextDirection::kRtl, false); |
| 77 ASSERT_GE(width, 100.f); | 80 ASSERT_GE(width, 100.f); |
| 78 ASSERT_LE(width, 300.f); | 81 ASSERT_LE(width, 300.f); |
| 79 } | 82 } |
| 80 | 83 |
| 81 TEST_F(LayoutTextTest, WidthFromBeyondLength) { | 84 TEST_F(LayoutTextTest, WidthFromBeyondLength) { |
| 82 setBasicBody("x"); | 85 setBasicBody("x"); |
| 83 ASSERT_EQ(0u, getBasicText()->width(1u, 1u, LayoutUnit(), TextDirection::kLtr, | 86 ASSERT_EQ( |
| 84 false)); | 87 0u, |
| 88 getBasicText()->width(1u, 1u, LayoutUnit(), TextDirection::kLtr, false)); |
| 85 } | 89 } |
| 86 | 90 |
| 87 TEST_F(LayoutTextTest, WidthLengthBeyondLength) { | 91 TEST_F(LayoutTextTest, WidthLengthBeyondLength) { |
| 88 setBasicBody("x"); | 92 setBasicBody("x"); |
| 89 // Width may vary by platform and we just want to make sure it's something | 93 // Width may vary by platform and we just want to make sure it's something |
| 90 // roughly reasonable. | 94 // roughly reasonable. |
| 91 const float width = | 95 const float width = |
| 92 getBasicText()->width(0u, 2u, LayoutUnit(), TextDirection::kLtr, false); | 96 getBasicText()->width(0u, 2u, LayoutUnit(), TextDirection::kLtr, false); |
| 93 ASSERT_GE(width, 4.f); | 97 ASSERT_GE(width, 4.f); |
| 94 ASSERT_LE(width, 20.f); | 98 ASSERT_LE(width, 20.f); |
| 95 } | 99 } |
| 96 | 100 |
| 97 } // namespace blink | 101 } // namespace blink |
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