1 // Copyright (c) 2012 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.
5 #include "ui/gfx/font_list.h"
11 #include "base/strings/string_number_conversions.h"
12 #include "base/strings/string_util.h"
13 #include "testing/gtest/include/gtest/gtest.h"
17 // Helper function for comparing fonts for equality.
18 std::string
FontToString(const gfx::Font
& font
) {
19 std::string font_string
= font
.GetFontName();
21 font_string
+= base::IntToString(font
.GetFontSize());
22 int style
= font
.GetStyle();
23 if (style
& gfx::Font::BOLD
)
24 font_string
+= "|bold";
25 if (style
& gfx::Font::ITALIC
)
26 font_string
+= "|italic";
27 if (style
& gfx::Font::UNDERLINE
)
28 font_string
+= "|underline";
36 TEST(FontListTest
, FontDescString_FromDescString
) {
37 // Test init from font name style size string.
38 FontList font_list
= FontList("Droid Sans serif, Sans serif, 10px");
39 EXPECT_EQ("Droid Sans serif, Sans serif, 10px",
40 font_list
.GetFontDescriptionString());
43 TEST(FontListTest
, FontDescString_FromFontNamesStyleAndSize
) {
44 // Test init from font names, style and size.
45 std::vector
<std::string
> font_names
;
46 font_names
.push_back("Arial");
47 font_names
.push_back("Droid Sans serif");
48 int font_style
= Font::BOLD
| Font::ITALIC
| Font::UNDERLINE
;
50 FontList font_list
= FontList(font_names
, font_style
, font_size
);
51 // "Underline" doesn't appear in the font description string.
52 EXPECT_EQ("Arial,Droid Sans serif,Bold Italic 11px",
53 font_list
.GetFontDescriptionString());
56 TEST(FontListTest
, FontDescString_FromFont
) {
57 // Test init from Font.
58 Font
font("Arial", 8);
59 FontList font_list
= FontList(font
);
60 EXPECT_EQ("Arial,8px", font_list
.GetFontDescriptionString());
63 TEST(FontListTest
, FontDescString_FromFontWithNonNormalStyle
) {
64 // Test init from Font with non-normal style.
65 Font
font("Arial", 8);
66 FontList font_list
= FontList(font
.Derive(2, Font::BOLD
));
67 EXPECT_EQ("Arial,Bold 10px", font_list
.GetFontDescriptionString());
69 font_list
= FontList(font
.Derive(-2, Font::ITALIC
));
70 EXPECT_EQ("Arial,Italic 6px", font_list
.GetFontDescriptionString());
72 // "Underline" doesn't appear in the font description string.
73 font_list
= FontList(font
.Derive(-4, Font::UNDERLINE
));
74 EXPECT_EQ("Arial,4px", font_list
.GetFontDescriptionString());
77 TEST(FontListTest
, FontDescString_FromFontVector
) {
78 // Test init from Font vector.
79 Font
font("Arial", 8);
80 Font
font_1("Sans serif", 10);
81 std::vector
<Font
> fonts
;
82 fonts
.push_back(font
.Derive(0, Font::BOLD
));
83 fonts
.push_back(font_1
.Derive(-2, Font::BOLD
));
84 FontList font_list
= FontList(fonts
);
85 EXPECT_EQ("Arial,Sans serif,Bold 8px", font_list
.GetFontDescriptionString());
88 TEST(FontListTest
, Fonts_FromDescString
) {
89 // Test init from font name size string.
90 FontList font_list
= FontList("serif,Sans serif, 13px");
91 const std::vector
<Font
>& fonts
= font_list
.GetFonts();
92 EXPECT_EQ(2U, fonts
.size());
93 EXPECT_EQ("serif|13", FontToString(fonts
[0]));
94 EXPECT_EQ("Sans serif|13", FontToString(fonts
[1]));
97 TEST(FontListTest
, Fonts_FromDescStringInFlexibleFormat
) {
98 // Test init from font name size string with flexible format.
99 FontList font_list
= FontList(" serif , Sans serif , 13px");
100 const std::vector
<Font
>& fonts
= font_list
.GetFonts();
101 EXPECT_EQ(2U, fonts
.size());
102 EXPECT_EQ("serif|13", FontToString(fonts
[0]));
103 EXPECT_EQ("Sans serif|13", FontToString(fonts
[1]));
106 TEST(FontListTest
, Fonts_FromDescStringWithStyleInFlexibleFormat
) {
107 // Test init from font name style size string with flexible format.
108 FontList font_list
= FontList(" serif , Sans serif , Bold "
110 const std::vector
<Font
>& fonts
= font_list
.GetFonts();
111 EXPECT_EQ(2U, fonts
.size());
112 EXPECT_EQ("serif|13|bold|italic", FontToString(fonts
[0]));
113 EXPECT_EQ("Sans serif|13|bold|italic", FontToString(fonts
[1]));
116 TEST(FontListTest
, Fonts_FromFont
) {
117 // Test init from Font.
118 Font
font("Arial", 8);
119 FontList font_list
= FontList(font
);
120 const std::vector
<Font
>& fonts
= font_list
.GetFonts();
121 EXPECT_EQ(1U, fonts
.size());
122 EXPECT_EQ("Arial|8", FontToString(fonts
[0]));
125 TEST(FontListTest
, Fonts_FromFontWithNonNormalStyle
) {
126 // Test init from Font with non-normal style.
127 Font
font("Arial", 8);
128 FontList font_list
= FontList(font
.Derive(2, Font::BOLD
));
129 std::vector
<Font
> fonts
= font_list
.GetFonts();
130 EXPECT_EQ(1U, fonts
.size());
131 EXPECT_EQ("Arial|10|bold", FontToString(fonts
[0]));
133 font_list
= FontList(font
.Derive(-2, Font::ITALIC
));
134 fonts
= font_list
.GetFonts();
135 EXPECT_EQ(1U, fonts
.size());
136 EXPECT_EQ("Arial|6|italic", FontToString(fonts
[0]));
139 TEST(FontListTest
, Fonts_FromFontVector
) {
140 // Test init from Font vector.
141 Font
font("Arial", 8);
142 Font
font_1("Sans serif", 10);
143 std::vector
<Font
> input_fonts
;
144 input_fonts
.push_back(font
.Derive(0, Font::BOLD
));
145 input_fonts
.push_back(font_1
.Derive(-2, Font::BOLD
));
146 FontList font_list
= FontList(input_fonts
);
147 const std::vector
<Font
>& fonts
= font_list
.GetFonts();
148 EXPECT_EQ(2U, fonts
.size());
149 EXPECT_EQ("Arial|8|bold", FontToString(fonts
[0]));
150 EXPECT_EQ("Sans serif|8|bold", FontToString(fonts
[1]));
153 TEST(FontListTest
, Fonts_DescStringWithStyleInFlexibleFormat_RoundTrip
) {
154 // Test round trip from font description string to font vector to
155 // font description string.
156 FontList font_list
= FontList(" serif , Sans serif , Bold "
159 const std::vector
<Font
>& fonts
= font_list
.GetFonts();
160 FontList font_list_1
= FontList(fonts
);
161 const std::string
& desc_str
= font_list_1
.GetFontDescriptionString();
163 EXPECT_EQ("serif,Sans serif,Bold Italic 13px", desc_str
);
166 TEST(FontListTest
, Fonts_FontVector_RoundTrip
) {
167 // Test round trip from font vector to font description string to font vector.
168 Font
font("Arial", 8);
169 Font
font_1("Sans serif", 10);
170 std::vector
<Font
> input_fonts
;
171 input_fonts
.push_back(font
.Derive(0, Font::BOLD
));
172 input_fonts
.push_back(font_1
.Derive(-2, Font::BOLD
));
173 FontList font_list
= FontList(input_fonts
);
175 const std::string
& desc_string
= font_list
.GetFontDescriptionString();
176 FontList font_list_1
= FontList(desc_string
);
177 const std::vector
<Font
>& round_trip_fonts
= font_list_1
.GetFonts();
179 EXPECT_EQ(2U, round_trip_fonts
.size());
180 EXPECT_EQ("Arial|8|bold", FontToString(round_trip_fonts
[0]));
181 EXPECT_EQ("Sans serif|8|bold", FontToString(round_trip_fonts
[1]));
184 TEST(FontListTest
, FontDescString_GetStyle
) {
185 FontList font_list
= FontList("Arial,Sans serif, 8px");
186 EXPECT_EQ(Font::NORMAL
, font_list
.GetFontStyle());
188 font_list
= FontList("Arial,Sans serif,Bold 8px");
189 EXPECT_EQ(Font::BOLD
, font_list
.GetFontStyle());
191 font_list
= FontList("Arial,Sans serif,Italic 8px");
192 EXPECT_EQ(Font::ITALIC
, font_list
.GetFontStyle());
194 font_list
= FontList("Arial,Italic Bold 8px");
195 EXPECT_EQ(Font::BOLD
| Font::ITALIC
, font_list
.GetFontStyle());
198 TEST(FontListTest
, Fonts_GetStyle
) {
199 std::vector
<Font
> fonts
;
200 fonts
.push_back(gfx::Font("Arial", 8));
201 fonts
.push_back(gfx::Font("Sans serif", 8));
202 FontList font_list
= FontList(fonts
);
203 EXPECT_EQ(Font::NORMAL
, font_list
.GetFontStyle());
204 fonts
[0] = fonts
[0].Derive(0, Font::ITALIC
| Font::BOLD
);
205 fonts
[1] = fonts
[1].Derive(0, Font::ITALIC
| Font::BOLD
);
206 font_list
= FontList(fonts
);
207 EXPECT_EQ(Font::ITALIC
| Font::BOLD
, font_list
.GetFontStyle());
210 TEST(FontListTest
, FontDescString_Derive
) {
211 FontList font_list
= FontList("Arial,Sans serif,Bold Italic 8px");
213 FontList derived
= font_list
.Derive(10, Font::ITALIC
| Font::UNDERLINE
);
214 EXPECT_EQ("Arial,Sans serif,Italic 18px", derived
.GetFontDescriptionString());
215 EXPECT_EQ(Font::ITALIC
| Font::UNDERLINE
, derived
.GetFontStyle());
217 // FontList has a special case for Font::UNDERLINE. See if the handling of
218 // Font::UNDERLINE in GetFonts() is okay or not.
220 EXPECT_EQ(Font::ITALIC
| Font::UNDERLINE
, derived
.GetFontStyle());
223 TEST(FontListTest
, Fonts_Derive
) {
224 std::vector
<Font
> fonts
;
225 fonts
.push_back(gfx::Font("Arial", 8));
226 fonts
.push_back(gfx::Font("Sans serif", 8));
227 FontList font_list
= FontList(fonts
);
229 FontList derived
= font_list
.Derive(5, Font::BOLD
| Font::UNDERLINE
);
230 const std::vector
<Font
>& derived_fonts
= derived
.GetFonts();
232 EXPECT_EQ(2U, derived_fonts
.size());
233 EXPECT_EQ("Arial|13|bold|underline", FontToString(derived_fonts
[0]));
234 EXPECT_EQ("Sans serif|13|bold|underline", FontToString(derived_fonts
[1]));
237 TEST(FontListTest
, FontDescString_DeriveWithSizeDelta
) {
238 FontList font_list
= FontList("Arial,Sans serif,Bold 18px");
240 FontList derived
= font_list
.DeriveWithSizeDelta(-8);
241 EXPECT_EQ("Arial,Sans serif,Bold 10px",
242 derived
.GetFontDescriptionString());
245 TEST(FontListTest
, Fonts_DeriveWithSizeDelta
) {
246 std::vector
<Font
> fonts
;
247 fonts
.push_back(gfx::Font("Arial", 18).Derive(0, Font::ITALIC
));
248 fonts
.push_back(gfx::Font("Sans serif", 18).Derive(0, Font::ITALIC
));
249 FontList font_list
= FontList(fonts
);
251 FontList derived
= font_list
.DeriveWithSizeDelta(-5);
252 const std::vector
<Font
>& derived_fonts
= derived
.GetFonts();
254 EXPECT_EQ(2U, derived_fonts
.size());
255 EXPECT_EQ("Arial|13|italic", FontToString(derived_fonts
[0]));
256 EXPECT_EQ("Sans serif|13|italic", FontToString(derived_fonts
[1]));
259 TEST(FontListTest
, Fonts_GetHeight_GetBaseline
) {
260 // If a font list has only one font, the height and baseline must be the same.
261 Font
font1("Arial", 16);
263 base::StringToLowerASCII(font1
.GetActualFontNameForTesting()));
264 FontList
font_list1("Arial, 16px");
265 EXPECT_EQ(font1
.GetHeight(), font_list1
.GetHeight());
266 EXPECT_EQ(font1
.GetBaseline(), font_list1
.GetBaseline());
268 // If there are two different fonts, the font list returns the max value
269 // for ascent and descent.
270 Font
font2("Symbol", 16);
272 base::StringToLowerASCII(font2
.GetActualFontNameForTesting()));
273 EXPECT_NE(font1
.GetBaseline(), font2
.GetBaseline());
274 EXPECT_NE(font1
.GetHeight() - font1
.GetBaseline(),
275 font2
.GetHeight() - font2
.GetBaseline());
276 std::vector
<Font
> fonts
;
277 fonts
.push_back(font1
);
278 fonts
.push_back(font2
);
279 FontList
font_list_mix(fonts
);
280 // ascent of FontList == max(ascent of Fonts)
281 EXPECT_EQ(std::max(font1
.GetHeight() - font1
.GetBaseline(),
282 font2
.GetHeight() - font2
.GetBaseline()),
283 font_list_mix
.GetHeight() - font_list_mix
.GetBaseline());
284 // descent of FontList == max(descent of Fonts)
285 EXPECT_EQ(std::max(font1
.GetBaseline(), font2
.GetBaseline()),
286 font_list_mix
.GetBaseline());