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Side by Side Diff: mojo/public/bindings/tests/type_conversion_unittest.cc

Issue 218883013: Mojo: Move public/bindings/tests/*.cc to public/cpp/bindings/tests/. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 6 years, 8 months ago
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1 // Copyright 2013 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 "mojo/public/bindings/tests/test_structs.mojom.h"
6 #include "mojo/public/cpp/bindings/allocation_scope.h"
7 #include "mojo/public/cpp/environment/environment.h"
8 #include "testing/gtest/include/gtest/gtest.h"
9
10 namespace mojo {
11 namespace {
12
13 struct RedmondRect {
14 int32_t left;
15 int32_t top;
16 int32_t right;
17 int32_t bottom;
18 };
19
20 struct RedmondNamedRegion {
21 std::string name;
22 std::vector<RedmondRect> rects;
23 };
24
25 } // namespace
26
27 template <>
28 class TypeConverter<test_structs::Rect, RedmondRect> {
29 public:
30 static test_structs::Rect ConvertFrom(const RedmondRect& input, Buffer* buf) {
31 test_structs::Rect::Builder rect(buf);
32 rect.set_x(input.left);
33 rect.set_y(input.top);
34 rect.set_width(input.right - input.left);
35 rect.set_height(input.bottom - input.top);
36 return rect.Finish();
37 }
38 static RedmondRect ConvertTo(const test_structs::Rect& input) {
39 RedmondRect rect;
40 rect.left = input.x();
41 rect.top = input.y();
42 rect.right = input.x() + input.width();
43 rect.bottom = input.y() + input.height();
44 return rect;
45 }
46 };
47
48 template <>
49 class TypeConverter<test_structs::NamedRegion, RedmondNamedRegion> {
50 public:
51 static test_structs::NamedRegion ConvertFrom(const RedmondNamedRegion& input,
52 Buffer* buf) {
53 test_structs::NamedRegion::Builder region(buf);
54 region.set_name(String(input.name, buf));
55 region.set_rects(mojo::Array<test_structs::Rect>(input.rects, buf));
56 return region.Finish();
57 }
58 static RedmondNamedRegion ConvertTo(const test_structs::NamedRegion& input) {
59 RedmondNamedRegion region;
60 region.name = input.name().To<std::string>();
61 region.rects = input.rects().To<std::vector<RedmondRect> >();
62 return region;
63 }
64 };
65
66 namespace test {
67 namespace {
68
69 class TypeConversionTest : public testing::Test {
70 private:
71 Environment env_;
72 };
73
74 TEST_F(TypeConversionTest, String) {
75 AllocationScope scope;
76
77 const char kText[6] = "hello";
78
79 String a = std::string(kText);
80 String b(kText);
81 String c(static_cast<const char*>(kText));
82
83 EXPECT_EQ(std::string(kText), a.To<std::string>());
84 EXPECT_EQ(std::string(kText), b.To<std::string>());
85 EXPECT_EQ(std::string(kText), c.To<std::string>());
86 }
87
88 TEST_F(TypeConversionTest, String_Null) {
89 String a;
90 EXPECT_TRUE(a.is_null());
91 EXPECT_EQ(std::string(), a.To<std::string>());
92
93 String b(static_cast<const char*>(NULL));
94 EXPECT_TRUE(b.is_null());
95 }
96
97 TEST_F(TypeConversionTest, String_Empty) {
98 AllocationScope scope;
99 String a = String::Builder(0).Finish();
100 EXPECT_EQ(std::string(), a.To<std::string>());
101
102 String b = std::string();
103 EXPECT_FALSE(b.is_null());
104 EXPECT_EQ(std::string(), b.To<std::string>());
105 }
106
107 TEST_F(TypeConversionTest, String_ShallowCopy) {
108 AllocationScope scope;
109
110 String a("hello");
111 String b(a);
112
113 EXPECT_EQ(&a[0], &b[0]);
114 EXPECT_EQ(a.To<std::string>(), b.To<std::string>());
115 }
116
117 TEST_F(TypeConversionTest, StringWithEmbeddedNull) {
118 AllocationScope scope;
119
120 const std::string kText("hel\0lo", 6);
121
122 String a(kText);
123 EXPECT_EQ(kText, a.To<std::string>());
124
125 // Expect truncation:
126 String b(kText.c_str());
127 EXPECT_EQ(std::string("hel"), b.To<std::string>());
128 }
129
130 TEST_F(TypeConversionTest, CustomTypeConverter) {
131 AllocationScope scope;
132
133 test_structs::Rect::Builder rect_builder;
134 rect_builder.set_x(10);
135 rect_builder.set_y(20);
136 rect_builder.set_width(50);
137 rect_builder.set_height(45);
138 test_structs::Rect rect = rect_builder.Finish();
139
140 RedmondRect rr = rect.To<RedmondRect>();
141 EXPECT_EQ(10, rr.left);
142 EXPECT_EQ(20, rr.top);
143 EXPECT_EQ(60, rr.right);
144 EXPECT_EQ(65, rr.bottom);
145
146 test_structs::Rect rect2(rr);
147 EXPECT_EQ(rect.x(), rect2.x());
148 EXPECT_EQ(rect.y(), rect2.y());
149 EXPECT_EQ(rect.width(), rect2.width());
150 EXPECT_EQ(rect.height(), rect2.height());
151 }
152
153 TEST_F(TypeConversionTest, CustomTypeConverter_Array_Null) {
154 Array<test_structs::Rect> rects;
155
156 std::vector<RedmondRect> redmond_rects =
157 rects.To<std::vector<RedmondRect> >();
158
159 EXPECT_TRUE(redmond_rects.empty());
160 }
161
162 TEST_F(TypeConversionTest, CustomTypeConverter_Array) {
163 AllocationScope scope;
164
165 const RedmondRect kBase = { 10, 20, 30, 40 };
166
167 Array<test_structs::Rect>::Builder rects_builder(10);
168 for (size_t i = 0; i < rects_builder.size(); ++i) {
169 RedmondRect rr = kBase;
170 rr.left += static_cast<int32_t>(i);
171 rr.top += static_cast<int32_t>(i);
172 rects_builder[i] = test_structs::Rect(rr);
173 }
174 Array<test_structs::Rect> rects = rects_builder.Finish();
175
176 std::vector<RedmondRect> redmond_rects =
177 rects.To<std::vector<RedmondRect> >();
178
179 // Note: assignment broken in two lines tests default constructor with
180 // assignment operator. We will also test conversion constructor.
181 Array<test_structs::Rect> rects2;
182 rects2 = redmond_rects;
183
184 EXPECT_EQ(rects.size(), rects2.size());
185 for (size_t i = 0; i < rects.size(); ++i) {
186 EXPECT_EQ(rects[i].x(), rects2[i].x());
187 EXPECT_EQ(rects[i].y(), rects2[i].y());
188 EXPECT_EQ(rects[i].width(), rects2[i].width());
189 EXPECT_EQ(rects[i].height(), rects2[i].height());
190 }
191
192 // Test conversion constructor.
193 Array<test_structs::Rect> rects3(redmond_rects);
194
195 EXPECT_EQ(rects.size(), rects3.size());
196 for (size_t i = 0; i < rects.size(); ++i) {
197 EXPECT_EQ(rects[i].x(), rects3[i].x());
198 EXPECT_EQ(rects[i].y(), rects3[i].y());
199 EXPECT_EQ(rects[i].width(), rects3[i].width());
200 EXPECT_EQ(rects[i].height(), rects3[i].height());
201 }
202 }
203
204 TEST_F(TypeConversionTest, CustomTypeConverter_Nested) {
205 AllocationScope scope;
206
207 RedmondNamedRegion redmond_region;
208 redmond_region.name = "foopy";
209
210 const RedmondRect kBase = { 10, 20, 30, 40 };
211
212 for (size_t i = 0; i < 10; ++i) {
213 RedmondRect rect = kBase;
214 rect.left += static_cast<int32_t>(i);
215 rect.top += static_cast<int32_t>(i);
216 redmond_region.rects.push_back(rect);
217 }
218
219 // Round-trip through generated struct and TypeConverter.
220
221 test_structs::NamedRegion copy = redmond_region;
222 RedmondNamedRegion redmond_region2 = copy.To<RedmondNamedRegion>();
223
224 EXPECT_EQ(redmond_region.name, redmond_region2.name);
225 EXPECT_EQ(redmond_region.rects.size(), redmond_region2.rects.size());
226 for (size_t i = 0; i < redmond_region.rects.size(); ++i) {
227 EXPECT_EQ(redmond_region.rects[i].left, redmond_region2.rects[i].left);
228 EXPECT_EQ(redmond_region.rects[i].top, redmond_region2.rects[i].top);
229 EXPECT_EQ(redmond_region.rects[i].right, redmond_region2.rects[i].right);
230 EXPECT_EQ(redmond_region.rects[i].bottom, redmond_region2.rects[i].bottom);
231 }
232 }
233
234 } // namespace
235 } // namespace test
236 } // namespace mojo
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