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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/ng/ng_constraint_space.h" | 5 #include "core/layout/ng/ng_constraint_space.h" |
6 | 6 |
7 #include "core/layout/ng/ng_layout_opportunity_iterator.h" | 7 #include "core/layout/ng/ng_layout_opportunity_iterator.h" |
8 #include "testing/gtest/include/gtest/gtest.h" | 8 #include "testing/gtest/include/gtest/gtest.h" |
9 | 9 |
10 namespace blink { | 10 namespace blink { |
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37 EXPECT_TRUE(horz_space->FixedInlineSize()); | 37 EXPECT_TRUE(horz_space->FixedInlineSize()); |
38 EXPECT_TRUE(vert_space->FixedBlockSize()); | 38 EXPECT_TRUE(vert_space->FixedBlockSize()); |
39 | 39 |
40 EXPECT_FALSE(horz_space->FixedBlockSize()); | 40 EXPECT_FALSE(horz_space->FixedBlockSize()); |
41 EXPECT_FALSE(vert_space->FixedInlineSize()); | 41 EXPECT_FALSE(vert_space->FixedInlineSize()); |
42 | 42 |
43 EXPECT_EQ(FragmentColumn, horz_space->BlockFragmentationType()); | 43 EXPECT_EQ(FragmentColumn, horz_space->BlockFragmentationType()); |
44 EXPECT_EQ(FragmentNone, vert_space->BlockFragmentationType()); | 44 EXPECT_EQ(FragmentNone, vert_space->BlockFragmentationType()); |
45 } | 45 } |
46 | 46 |
47 static String OpportunityToString(const NGConstraintSpace* opportunity) { | 47 static String OpportunityToString(const NGLayoutOpportunity& opportunity) { |
48 return opportunity ? opportunity->ToString() : String("(null)"); | 48 return !opportunity.IsEmpty() ? opportunity.ToString() : String("(empty)"); |
Gleb Lanbin
2016/10/21 22:13:01
.nit please try to use positive booleans statement
ikilpatrick
2016/10/24 17:09:19
Done.
| |
49 } | 49 } |
50 | 50 |
51 TEST(NGConstraintSpaceTest, LayoutOpportunitiesNoExclusions) { | 51 TEST(NGConstraintSpaceTest, LayoutOpportunitiesNoExclusions) { |
52 NGPhysicalSize physical_size; | 52 NGPhysicalSize physical_size; |
53 physical_size.width = LayoutUnit(600); | 53 physical_size.width = LayoutUnit(600); |
54 physical_size.height = LayoutUnit(400); | 54 physical_size.height = LayoutUnit(400); |
55 auto* physical_space = new NGPhysicalConstraintSpace(physical_size); | 55 auto* physical_space = new NGPhysicalConstraintSpace(physical_size); |
56 auto* space = | 56 auto* space = |
57 new NGConstraintSpace(HorizontalTopBottom, LeftToRight, physical_space); | 57 new NGConstraintSpace(HorizontalTopBottom, LeftToRight, physical_space); |
58 | 58 |
59 bool for_inline_or_bfc = true; | 59 bool for_inline_or_bfc = true; |
60 auto* iterator = space->LayoutOpportunities(NGClearNone, for_inline_or_bfc); | 60 auto* iterator = space->LayoutOpportunities(NGClearNone, for_inline_or_bfc); |
61 | 61 |
62 EXPECT_EQ("0,0 600x400", OpportunityToString(iterator->Next())); | 62 EXPECT_EQ("0,0 600x400", OpportunityToString(iterator->Next())); |
63 EXPECT_EQ("(null)", OpportunityToString(iterator->Next())); | 63 EXPECT_EQ("(empty)", OpportunityToString(iterator->Next())); |
64 } | 64 } |
65 | 65 |
66 TEST(NGConstraintSpaceTest, LayoutOpportunitiesTopRightExclusion) { | 66 TEST(NGConstraintSpaceTest, LayoutOpportunitiesTopRightExclusion) { |
67 NGPhysicalSize physical_size; | 67 NGPhysicalSize physical_size; |
68 physical_size.width = LayoutUnit(600); | 68 physical_size.width = LayoutUnit(600); |
69 physical_size.height = LayoutUnit(400); | 69 physical_size.height = LayoutUnit(400); |
70 auto* physical_space = new NGPhysicalConstraintSpace(physical_size); | 70 auto* physical_space = new NGPhysicalConstraintSpace(physical_size); |
71 | 71 |
72 // Add a 100x100 exclusion in the top right corner. | 72 // Add a 100x100 exclusion in the top right corner. |
73 physical_space->AddExclusion(new NGExclusion( | 73 physical_space->AddExclusion(new NGExclusion( |
74 LayoutUnit(0), LayoutUnit(600), LayoutUnit(100), LayoutUnit(500))); | 74 LayoutUnit(0), LayoutUnit(600), LayoutUnit(100), LayoutUnit(500))); |
75 | 75 |
76 auto* space = | 76 auto* space = |
77 new NGConstraintSpace(HorizontalTopBottom, LeftToRight, physical_space); | 77 new NGConstraintSpace(HorizontalTopBottom, LeftToRight, physical_space); |
78 bool for_inline_or_bfc = true; | 78 bool for_inline_or_bfc = true; |
79 auto* iterator = space->LayoutOpportunities(NGClearNone, for_inline_or_bfc); | 79 auto* iterator = space->LayoutOpportunities(NGClearNone, for_inline_or_bfc); |
80 | 80 |
81 // First opportunity should be to the left of the exclusion. | 81 // First opportunity should be to the left of the exclusion. |
82 EXPECT_EQ("0,0 500x400", OpportunityToString(iterator->Next())); | 82 EXPECT_EQ("0,0 500x400", OpportunityToString(iterator->Next())); |
83 | 83 |
84 // Second opportunity should be below the exclusion. | 84 // Second opportunity should be below the exclusion. |
85 EXPECT_EQ("0,100 600x300", OpportunityToString(iterator->Next())); | 85 EXPECT_EQ("0,100 600x300", OpportunityToString(iterator->Next())); |
86 | 86 |
87 // There should be no third opportunity. | 87 // There should be no third opportunity. |
88 EXPECT_EQ("(null)", OpportunityToString(iterator->Next())); | 88 EXPECT_EQ("(empty)", OpportunityToString(iterator->Next())); |
89 } | 89 } |
90 | 90 |
91 TEST(NGConstraintSpaceTest, LayoutOpportunitiesTopLeftExclusion) { | 91 TEST(NGConstraintSpaceTest, LayoutOpportunitiesTopLeftExclusion) { |
92 NGPhysicalSize physical_size; | 92 NGPhysicalSize physical_size; |
93 physical_size.width = LayoutUnit(600); | 93 physical_size.width = LayoutUnit(600); |
94 physical_size.height = LayoutUnit(400); | 94 physical_size.height = LayoutUnit(400); |
95 auto* physical_space = new NGPhysicalConstraintSpace(physical_size); | 95 auto* physical_space = new NGPhysicalConstraintSpace(physical_size); |
96 | 96 |
97 // Add a 100x100 exclusion in the top left corner. | 97 // Add a 100x100 exclusion in the top left corner. |
98 physical_space->AddExclusion(new NGExclusion(LayoutUnit(0), LayoutUnit(100), | 98 physical_space->AddExclusion(new NGExclusion(LayoutUnit(0), LayoutUnit(100), |
99 LayoutUnit(100), LayoutUnit(0))); | 99 LayoutUnit(100), LayoutUnit(0))); |
100 | 100 |
101 auto* space = | 101 auto* space = |
102 new NGConstraintSpace(HorizontalTopBottom, LeftToRight, physical_space); | 102 new NGConstraintSpace(HorizontalTopBottom, LeftToRight, physical_space); |
103 bool for_inline_or_bfc = true; | 103 bool for_inline_or_bfc = true; |
104 auto* iterator = space->LayoutOpportunities(NGClearNone, for_inline_or_bfc); | 104 auto* iterator = space->LayoutOpportunities(NGClearNone, for_inline_or_bfc); |
105 | 105 |
106 // First opportunity should be to the right of the exclusion. | 106 // First opportunity should be to the right of the exclusion. |
107 EXPECT_EQ("100,0 500x400", OpportunityToString(iterator->Next())); | 107 EXPECT_EQ("100,0 500x400", OpportunityToString(iterator->Next())); |
108 | 108 |
109 // Second opportunity should be below the exclusion. | 109 // Second opportunity should be below the exclusion. |
110 EXPECT_EQ("0,100 600x300", OpportunityToString(iterator->Next())); | 110 EXPECT_EQ("0,100 600x300", OpportunityToString(iterator->Next())); |
111 | 111 |
112 // There should be no third opportunity. | 112 // There should be no third opportunity. |
113 EXPECT_EQ("(null)", OpportunityToString(iterator->Next())); | 113 EXPECT_EQ("(empty)", OpportunityToString(iterator->Next())); |
114 } | 114 } |
115 | 115 |
116 // Verifies that Layout Opportunity iterator produces 7 layout opportunities | 116 // Verifies that Layout Opportunity iterator produces 7 layout opportunities |
117 // from 4 start points created by 2 CSS exclusions positioned in the middle of | 117 // from 4 start points created by 2 CSS exclusions positioned in the middle of |
118 // the main constraint space. | 118 // the main constraint space. |
119 // | 119 // |
120 // Test case visual representation: | 120 // Test case visual representation: |
121 // | 121 // |
122 // 100 200 300 400 500 | 122 // 100 200 300 400 500 |
123 // (1)--|----|----|-(2)|----|-(3)+ | 123 // (1)--|----|----|-(2)|----|-(3)+ |
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162 EXPECT_EQ("250,0 250x400", OpportunityToString(iterator->Next())); | 162 EXPECT_EQ("250,0 250x400", OpportunityToString(iterator->Next())); |
163 | 163 |
164 // 3rd Start point | 164 // 3rd Start point |
165 EXPECT_EQ("550,0 50x400", OpportunityToString(iterator->Next())); | 165 EXPECT_EQ("550,0 50x400", OpportunityToString(iterator->Next())); |
166 | 166 |
167 // 4th Start point | 167 // 4th Start point |
168 EXPECT_EQ("0,300 600x50", OpportunityToString(iterator->Next())); | 168 EXPECT_EQ("0,300 600x50", OpportunityToString(iterator->Next())); |
169 EXPECT_EQ("0,300 500x100", OpportunityToString(iterator->Next())); | 169 EXPECT_EQ("0,300 500x100", OpportunityToString(iterator->Next())); |
170 | 170 |
171 // Iterator is exhausted. | 171 // Iterator is exhausted. |
172 EXPECT_EQ("(null)", OpportunityToString(iterator->Next())); | 172 EXPECT_EQ("(empty)", OpportunityToString(iterator->Next())); |
173 } | 173 } |
174 | 174 |
175 // Verifies that Layout Opportunity iterator ignores the exclusion that is not | 175 // Verifies that Layout Opportunity iterator ignores the exclusion that is not |
176 // within constraint space. | 176 // within constraint space. |
177 // | 177 // |
178 // Test case visual representation: | 178 // Test case visual representation: |
179 // | 179 // |
180 // 100 200 300 400 500 | 180 // 100 200 300 400 500 |
181 // +----|----|----|----|----|----+ | 181 // +----|----|----|----|----|----+ |
182 // 50 | | | 182 // 50 | | |
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195 auto* physical_space = new NGPhysicalConstraintSpace(physical_size); | 195 auto* physical_space = new NGPhysicalConstraintSpace(physical_size); |
196 physical_space->AddExclusion(new NGExclusion(LayoutUnit(150), LayoutUnit(100), | 196 physical_space->AddExclusion(new NGExclusion(LayoutUnit(150), LayoutUnit(100), |
197 LayoutUnit(200), LayoutUnit(0))); | 197 LayoutUnit(200), LayoutUnit(0))); |
198 auto* space = | 198 auto* space = |
199 new NGConstraintSpace(HorizontalTopBottom, LeftToRight, physical_space); | 199 new NGConstraintSpace(HorizontalTopBottom, LeftToRight, physical_space); |
200 | 200 |
201 bool for_inline_or_bfc = true; | 201 bool for_inline_or_bfc = true; |
202 auto* iterator = space->LayoutOpportunities(NGClearNone, for_inline_or_bfc); | 202 auto* iterator = space->LayoutOpportunities(NGClearNone, for_inline_or_bfc); |
203 | 203 |
204 EXPECT_EQ("0,0 600x100", OpportunityToString(iterator->Next())); | 204 EXPECT_EQ("0,0 600x100", OpportunityToString(iterator->Next())); |
205 EXPECT_EQ("(null)", OpportunityToString(iterator->Next())); | 205 EXPECT_EQ("(empty)", OpportunityToString(iterator->Next())); |
206 } | 206 } |
207 | 207 |
208 } // namespace | 208 } // namespace |
209 } // namespace blink | 209 } // namespace blink |
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