| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // |
| // Unit tests for eliding and formatting utility functions. |
| |
| #include "ui/gfx/text_elider.h" |
| |
| #include <stddef.h> |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "base/files/file_path.h" |
| #include "base/i18n/rtl.h" |
| #include "base/message_loop/message_loop.h" |
| #include "base/run_loop.h" |
| #include "base/stl_util.h" |
| #include "base/strings/string_util.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "build/build_config.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "ui/gfx/font.h" |
| #include "ui/gfx/font_list.h" |
| #include "ui/gfx/font_render_params.h" |
| #include "ui/gfx/text_utils.h" |
| |
| using base::ASCIIToUTF16; |
| using base::UTF16ToUTF8; |
| using base::UTF16ToWide; |
| using base::UTF8ToUTF16; |
| using base::WideToUTF16; |
| |
| namespace gfx { |
| |
| namespace { |
| |
| struct Testcase { |
| const std::string input; |
| const std::string output; |
| }; |
| |
| struct FileTestcase { |
| const base::FilePath::StringType input; |
| const std::string output; |
| // If this value is specified, we will try to cut the path down to the render |
| // width of this string; if not specified, output will be used. |
| const std::string using_width_of = std::string(); |
| }; |
| |
| struct UTF16Testcase { |
| const base::string16 input; |
| const base::string16 output; |
| }; |
| |
| struct TestData { |
| const std::string a; |
| const std::string b; |
| const int compare_result; |
| }; |
| |
| } // namespace |
| |
| TEST(TextEliderTest, ElideEmail) { |
| const std::string kEllipsisStr(kEllipsis); |
| |
| // Test emails and their expected elided forms (from which the available |
| // widths will be derived). |
| // For elided forms in which both the username and domain must be elided: |
| // the result (how many characters are left on each side) can be font |
| // dependent. To avoid this, the username is prefixed with the characters |
| // expected to remain in the domain. |
| Testcase testcases[] = { |
| {"g@g.c", "g@g.c"}, |
| {"g@g.c", kEllipsisStr}, |
| {"ga@co.ca", "ga@c" + kEllipsisStr + "a"}, |
| {"short@small.com", "s" + kEllipsisStr + "@s" + kEllipsisStr}, |
| {"short@small.com", "s" + kEllipsisStr + "@small.com"}, |
| {"short@longbutlotsofspace.com", "short@longbutlotsofspace.com"}, |
| {"short@longbutnotverymuchspace.com", |
| "short@long" + kEllipsisStr + ".com"}, |
| {"la_short@longbutverytightspace.ca", |
| "la" + kEllipsisStr + "@l" + kEllipsisStr + "a"}, |
| {"longusername@gmail.com", "long" + kEllipsisStr + "@gmail.com"}, |
| {"elidetothemax@justfits.com", "e" + kEllipsisStr + "@justfits.com"}, |
| {"thatom_somelongemail@thatdoesntfit.com", |
| "thatom" + kEllipsisStr + "@tha" + kEllipsisStr + "om"}, |
| {"namefits@butthedomaindoesnt.com", |
| "namefits@butthedo" + kEllipsisStr + "snt.com"}, |
| {"widthtootight@nospace.com", kEllipsisStr}, |
| {"nospaceforusername@l", kEllipsisStr}, |
| {"little@littlespace.com", "l" + kEllipsisStr + "@l" + kEllipsisStr}, |
| {"l@llllllllllllllllllllllll.com", "l@lllll" + kEllipsisStr + ".com"}, |
| {"messed\"up@whyanat\"++@notgoogley.com", |
| "messed\"up@whyanat\"++@notgoogley.com"}, |
| {"messed\"up@whyanat\"++@notgoogley.com", |
| "messed\"up@why" + kEllipsisStr + "@notgoogley.com"}, |
| {"noca_messed\"up@whyanat\"++@notgoogley.ca", |
| "noca" + kEllipsisStr + "@no" + kEllipsisStr + "ca"}, |
| {"at\"@@@@@@@@@...@@.@.@.@@@\"@madness.com", |
| "at\"@@@@@@@@@...@@.@." + kEllipsisStr + "@madness.com"}, |
| // Special case: "m..." takes more than half of the available width; thus |
| // the domain must elide to "l..." and not "l...l" as it must allow enough |
| // space for the minimal username elision although its half of the |
| // available width would normally allow it to elide to "l...l". |
| {"mmmmm@llllllllll", "m" + kEllipsisStr + "@l" + kEllipsisStr}, |
| }; |
| |
| const FontList font_list; |
| for (size_t i = 0; i < base::size(testcases); ++i) { |
| const base::string16 expected_output = UTF8ToUTF16(testcases[i].output); |
| EXPECT_EQ(expected_output, |
| ElideText(UTF8ToUTF16(testcases[i].input), font_list, |
| GetStringWidthF(expected_output, font_list), |
| ELIDE_EMAIL)); |
| } |
| } |
| |
| TEST(TextEliderTest, ElideEmailMoreSpace) { |
| const int test_width_factors[] = { |
| 100, |
| 10000, |
| 1000000, |
| }; |
| const std::string test_emails[] = { |
| "a@c", |
| "test@email.com", |
| "short@verysuperdupperlongdomain.com", |
| "supermegalongusername@withasuperlonnnggggdomain.gouv.qc.ca", |
| }; |
| |
| const FontList font_list; |
| for (size_t i = 0; i < base::size(test_width_factors); ++i) { |
| const int test_width = |
| font_list.GetExpectedTextWidth(test_width_factors[i]); |
| for (size_t j = 0; j < base::size(test_emails); ++j) { |
| // Extra space is available: the email should not be elided. |
| const base::string16 test_email = UTF8ToUTF16(test_emails[j]); |
| EXPECT_EQ(test_email, |
| ElideText(test_email, font_list, test_width, ELIDE_EMAIL)); |
| } |
| } |
| } |
| |
| TEST(TextEliderTest, TestFilenameEliding) { |
| const std::string kEllipsisStr(kEllipsis); |
| const base::FilePath::StringType kPathSeparator = |
| base::FilePath::StringType().append(1, base::FilePath::kSeparators[0]); |
| |
| FileTestcase testcases[] = { |
| {FILE_PATH_LITERAL(""), ""}, |
| {FILE_PATH_LITERAL("."), "."}, |
| {FILE_PATH_LITERAL("filename.exe"), "filename.exe"}, |
| {FILE_PATH_LITERAL(".longext"), ".longext"}, |
| {FILE_PATH_LITERAL("pie"), "pie"}, |
| {FILE_PATH_LITERAL("c:") + kPathSeparator + FILE_PATH_LITERAL("path") + |
| kPathSeparator + FILE_PATH_LITERAL("filename.pie"), |
| "filename.pie"}, |
| {FILE_PATH_LITERAL("c:") + kPathSeparator + FILE_PATH_LITERAL("path") + |
| kPathSeparator + FILE_PATH_LITERAL("longfilename.pie"), |
| "long" + kEllipsisStr + ".pie"}, |
| {FILE_PATH_LITERAL("http://path.com/filename.pie"), "filename.pie"}, |
| {FILE_PATH_LITERAL("http://path.com/longfilename.pie"), |
| "long" + kEllipsisStr + ".pie"}, |
| {FILE_PATH_LITERAL("piesmashingtacularpants"), "pie" + kEllipsisStr}, |
| {FILE_PATH_LITERAL(".piesmashingtacularpants"), ".pie" + kEllipsisStr}, |
| {FILE_PATH_LITERAL("cheese."), "cheese."}, |
| {FILE_PATH_LITERAL("file name.longext"), |
| "file" + kEllipsisStr + ".longext"}, |
| {FILE_PATH_LITERAL("fil ename.longext"), |
| "fil" + kEllipsisStr + ".longext", "fil " + kEllipsisStr + ".longext"}, |
| {FILE_PATH_LITERAL("filename.longext"), |
| "file" + kEllipsisStr + ".longext"}, |
| {FILE_PATH_LITERAL("filename.middleext.longext"), |
| "filename.mid" + kEllipsisStr + ".longext"}, |
| {FILE_PATH_LITERAL("filename.superduperextremelylongext"), |
| "filename.sup" + kEllipsisStr + "emelylongext"}, |
| {FILE_PATH_LITERAL("filenamereallylongtext.superduperextremelylongext"), |
| "filenamereall" + kEllipsisStr + "emelylongext"}, |
| {FILE_PATH_LITERAL( |
| "file.name.really.long.text.superduperextremelylongext"), |
| "file.name.re" + kEllipsisStr + "emelylongext"}}; |
| |
| static const FontList font_list; |
| for (size_t i = 0; i < base::size(testcases); ++i) { |
| base::FilePath filepath(testcases[i].input); |
| base::string16 expected = UTF8ToUTF16(testcases[i].output); |
| base::string16 using_width_of = UTF8ToUTF16( |
| testcases[i].using_width_of.empty() ? testcases[i].output |
| : testcases[i].using_width_of); |
| expected = base::i18n::GetDisplayStringInLTRDirectionality(expected); |
| EXPECT_EQ(expected, |
| ElideFilename(filepath, font_list, |
| GetStringWidthF(using_width_of, font_list), |
| Typesetter::DEFAULT)); |
| } |
| } |
| |
| TEST(TextEliderTest, ElideTextTruncate) { |
| const FontList font_list; |
| const float kTestWidth = GetStringWidthF(ASCIIToUTF16("Test"), font_list); |
| struct TestData { |
| const char* input; |
| float width; |
| const char* output; |
| } cases[] = { |
| { "", 0, "" }, |
| { "Test", 0, "" }, |
| { "", kTestWidth, "" }, |
| { "Tes", kTestWidth, "Tes" }, |
| { "Test", kTestWidth, "Test" }, |
| { "Tests", kTestWidth, "Test" }, |
| }; |
| |
| for (size_t i = 0; i < base::size(cases); ++i) { |
| base::string16 result = ElideText(UTF8ToUTF16(cases[i].input), font_list, |
| cases[i].width, TRUNCATE); |
| EXPECT_EQ(cases[i].output, UTF16ToUTF8(result)); |
| } |
| } |
| |
| TEST(TextEliderTest, ElideTextEllipsis) { |
| const FontList font_list; |
| const float kTestWidth = GetStringWidthF(ASCIIToUTF16("Test"), font_list); |
| const char* kEllipsis = "\xE2\x80\xA6"; |
| const float kEllipsisWidth = |
| GetStringWidthF(UTF8ToUTF16(kEllipsis), font_list); |
| struct TestData { |
| const char* input; |
| float width; |
| const char* output; |
| } cases[] = { |
| { "", 0, "" }, |
| { "Test", 0, "" }, |
| { "Test", kEllipsisWidth, kEllipsis }, |
| { "", kTestWidth, "" }, |
| { "Tes", kTestWidth, "Tes" }, |
| { "Test", kTestWidth, "Test" }, |
| }; |
| |
| for (size_t i = 0; i < base::size(cases); ++i) { |
| base::string16 result = ElideText(UTF8ToUTF16(cases[i].input), font_list, |
| cases[i].width, ELIDE_TAIL); |
| EXPECT_EQ(cases[i].output, UTF16ToUTF8(result)); |
| } |
| } |
| |
| TEST(TextEliderTest, ElideTextEllipsisFront) { |
| const FontList font_list; |
| const float kTestWidth = GetStringWidthF(ASCIIToUTF16("Test"), font_list); |
| const std::string kEllipsisStr(kEllipsis); |
| const float kEllipsisWidth = |
| GetStringWidthF(UTF8ToUTF16(kEllipsis), font_list); |
| const float kEllipsis23Width = |
| GetStringWidthF(UTF8ToUTF16(kEllipsisStr + "23"), font_list); |
| struct TestData { |
| const char* input; |
| float width; |
| const base::string16 output; |
| } cases[] = { |
| { "", 0, base::string16() }, |
| { "Test", 0, base::string16() }, |
| { "Test", kEllipsisWidth, UTF8ToUTF16(kEllipsisStr) }, |
| { "", kTestWidth, base::string16() }, |
| { "Tes", kTestWidth, ASCIIToUTF16("Tes") }, |
| { "Test", kTestWidth, ASCIIToUTF16("Test") }, |
| { "Test123", kEllipsis23Width, UTF8ToUTF16(kEllipsisStr + "23") }, |
| }; |
| |
| for (size_t i = 0; i < base::size(cases); ++i) { |
| base::string16 result = ElideText(UTF8ToUTF16(cases[i].input), font_list, |
| cases[i].width, ELIDE_HEAD); |
| EXPECT_EQ(cases[i].output, result); |
| } |
| } |
| |
| // Checks that all occurrences of |first_char| are followed by |second_char| and |
| // all occurrences of |second_char| are preceded by |first_char| in |text|. Can |
| // be used to test surrogate pairs or two-character combining sequences. |
| static void CheckCodeUnitPairs(const base::string16& text, |
| base::char16 first_char, |
| base::char16 second_char) { |
| for (size_t index = 0; index < text.length(); ++index) { |
| EXPECT_NE(second_char, text[index]); |
| if (text[index] == first_char) { |
| ASSERT_LT(++index, text.length()); |
| EXPECT_EQ(second_char, text[index]); |
| } |
| } |
| } |
| |
| // Test that both both UTF-16 surrogate pairs and combining character sequences |
| // do not get split by ElideText. |
| TEST(TextEliderTest, ElideTextAtomicSequences) { |
| #if defined(OS_WIN) |
| // Needed to bypass DCHECK in GetFallbackFont. |
| base::MessageLoopForUI message_loop; |
| #endif |
| const FontList font_list; |
| // The below is 'MUSICAL SYMBOL G CLEF' (U+1D11E), which is represented in |
| // UTF-16 as two code units forming a surrogate pair: 0xD834 0xDD1E. |
| const base::char16 kSurrogate[] = {0xD834, 0xDD1E, 0}; |
| // The below is a Devanagari two-character combining sequence U+0921 U+093F. |
| // The sequence forms a single display character and should not be separated. |
| const base::char16 kCombiningSequence[] = {0x921, 0x93F, 0}; |
| std::vector<base::string16> pairs; |
| pairs.push_back(kSurrogate); |
| pairs.push_back(kCombiningSequence); |
| |
| for (const base::string16& pair : pairs) { |
| base::char16 first_char = pair[0]; |
| base::char16 second_char = pair[1]; |
| base::string16 test_string = pair + UTF8ToUTF16("x") + pair; |
| SCOPED_TRACE(test_string); |
| const float test_string_width = GetStringWidthF(test_string, font_list); |
| base::string16 result; |
| |
| // Elide |text_string| to all possible widths and check that no instance of |
| // |pair| was split in two. |
| for (float width = 0; width <= test_string_width; width++) { |
| result = ElideText(test_string, font_list, width, TRUNCATE); |
| CheckCodeUnitPairs(result, first_char, second_char); |
| |
| result = ElideText(test_string, font_list, width, ELIDE_TAIL); |
| CheckCodeUnitPairs(result, first_char, second_char); |
| |
| result = ElideText(test_string, font_list, width, ELIDE_MIDDLE); |
| CheckCodeUnitPairs(result, first_char, second_char); |
| |
| result = ElideText(test_string, font_list, width, ELIDE_HEAD); |
| CheckCodeUnitPairs(result, first_char, second_char); |
| } |
| } |
| } |
| |
| TEST(TextEliderTest, ElideTextLongStrings) { |
| const base::string16 kEllipsisStr = UTF8ToUTF16(kEllipsis); |
| base::string16 data_scheme(UTF8ToUTF16("data:text/plain,")); |
| size_t data_scheme_length = data_scheme.length(); |
| |
| base::string16 ten_a(10, 'a'); |
| base::string16 hundred_a(100, 'a'); |
| base::string16 thousand_a(1000, 'a'); |
| base::string16 ten_thousand_a(10000, 'a'); |
| base::string16 hundred_thousand_a(100000, 'a'); |
| base::string16 million_a(1000000, 'a'); |
| |
| // TODO(gbillock): Improve these tests by adding more string diversity and |
| // doing string compares instead of length compares. See bug 338836. |
| |
| size_t number_of_as = 156; |
| base::string16 long_string_end( |
| data_scheme + base::string16(number_of_as, 'a') + kEllipsisStr); |
| UTF16Testcase testcases_end[] = { |
| { data_scheme + ten_a, data_scheme + ten_a }, |
| { data_scheme + hundred_a, data_scheme + hundred_a }, |
| { data_scheme + thousand_a, long_string_end }, |
| { data_scheme + ten_thousand_a, long_string_end }, |
| { data_scheme + hundred_thousand_a, long_string_end }, |
| { data_scheme + million_a, long_string_end }, |
| }; |
| |
| const FontList font_list; |
| float ellipsis_width = GetStringWidthF(kEllipsisStr, font_list); |
| for (size_t i = 0; i < base::size(testcases_end); ++i) { |
| // Compare sizes rather than actual contents because if the test fails, |
| // output is rather long. |
| EXPECT_EQ(testcases_end[i].output.size(), |
| ElideText(testcases_end[i].input, font_list, |
| GetStringWidthF(testcases_end[i].output, font_list), |
| ELIDE_TAIL).size()); |
| EXPECT_EQ(kEllipsisStr, |
| ElideText(testcases_end[i].input, font_list, ellipsis_width, |
| ELIDE_TAIL)); |
| } |
| |
| size_t number_of_trailing_as = (data_scheme_length + number_of_as) / 2; |
| base::string16 long_string_middle(data_scheme + |
| base::string16(number_of_as - number_of_trailing_as, 'a') + kEllipsisStr + |
| base::string16(number_of_trailing_as, 'a')); |
| UTF16Testcase testcases_middle[] = { |
| { data_scheme + ten_a, data_scheme + ten_a }, |
| { data_scheme + hundred_a, data_scheme + hundred_a }, |
| { data_scheme + thousand_a, long_string_middle }, |
| { data_scheme + ten_thousand_a, long_string_middle }, |
| { data_scheme + hundred_thousand_a, long_string_middle }, |
| { data_scheme + million_a, long_string_middle }, |
| }; |
| |
| for (size_t i = 0; i < base::size(testcases_middle); ++i) { |
| // Compare sizes rather than actual contents because if the test fails, |
| // output is rather long. |
| EXPECT_EQ(testcases_middle[i].output.size(), |
| ElideText(testcases_middle[i].input, font_list, |
| GetStringWidthF(testcases_middle[i].output, font_list), |
| ELIDE_MIDDLE).size()); |
| EXPECT_EQ(kEllipsisStr, |
| ElideText(testcases_middle[i].input, font_list, ellipsis_width, |
| ELIDE_MIDDLE)); |
| } |
| |
| base::string16 long_string_beginning( |
| kEllipsisStr + base::string16(number_of_as, 'a')); |
| UTF16Testcase testcases_beginning[] = { |
| { data_scheme + ten_a, data_scheme + ten_a }, |
| { data_scheme + hundred_a, data_scheme + hundred_a }, |
| { data_scheme + thousand_a, long_string_beginning }, |
| { data_scheme + ten_thousand_a, long_string_beginning }, |
| { data_scheme + hundred_thousand_a, long_string_beginning }, |
| { data_scheme + million_a, long_string_beginning }, |
| }; |
| for (size_t i = 0; i < base::size(testcases_beginning); ++i) { |
| EXPECT_EQ(testcases_beginning[i].output.size(), |
| ElideText( |
| testcases_beginning[i].input, font_list, |
| GetStringWidthF(testcases_beginning[i].output, font_list), |
| ELIDE_HEAD).size()); |
| EXPECT_EQ(kEllipsisStr, |
| ElideText(testcases_beginning[i].input, font_list, ellipsis_width, |
| ELIDE_HEAD)); |
| } |
| } |
| |
| // Detailed tests for StringSlicer. These are faster and test more of the edge |
| // cases than the above tests which are more end-to-end. |
| |
| TEST(TextEliderTest, StringSlicerBasicTest) { |
| // Must store strings in variables (StringSlicer retains a reference to them). |
| base::string16 text(UTF8ToUTF16("Hello, world!")); |
| base::string16 ellipsis(kEllipsisUTF16); |
| StringSlicer slicer(text, ellipsis, false, false); |
| |
| EXPECT_EQ(UTF8ToUTF16(""), slicer.CutString(0, false)); |
| EXPECT_EQ(base::string16(kEllipsisUTF16), slicer.CutString(0, true)); |
| |
| EXPECT_EQ(UTF8ToUTF16("Hell"), slicer.CutString(4, false)); |
| EXPECT_EQ(UTF8ToUTF16("Hell") + kEllipsisUTF16, slicer.CutString(4, true)); |
| |
| EXPECT_EQ(text, slicer.CutString(text.length(), false)); |
| EXPECT_EQ(text + kEllipsisUTF16, slicer.CutString(text.length(), true)); |
| |
| StringSlicer slicer_begin(text, ellipsis, false, true); |
| EXPECT_EQ(UTF8ToUTF16("rld!"), slicer_begin.CutString(4, false)); |
| EXPECT_EQ(kEllipsisUTF16 + UTF8ToUTF16("rld!"), |
| slicer_begin.CutString(4, true)); |
| |
| StringSlicer slicer_mid(text, ellipsis, true, false); |
| EXPECT_EQ(UTF8ToUTF16("Held!"), slicer_mid.CutString(5, false)); |
| EXPECT_EQ(UTF8ToUTF16("Hel") + kEllipsisUTF16 + UTF8ToUTF16("d!"), |
| slicer_mid.CutString(5, true)); |
| } |
| |
| TEST(TextEliderTest, StringSlicerWhitespace) { |
| // Must store strings in variables (StringSlicer retains a reference to them). |
| base::string16 text(UTF8ToUTF16("Hello, world!")); |
| base::string16 ellipsis(kEllipsisUTF16); |
| |
| // Eliding the end of a string should result in whitespace being removed |
| // before the ellipsis. |
| StringSlicer slicer_end(text, ellipsis, false, false); |
| EXPECT_EQ(UTF8ToUTF16("Hello,") + kEllipsisUTF16, |
| slicer_end.CutString(6, true)); |
| EXPECT_EQ(UTF8ToUTF16("Hello,") + kEllipsisUTF16, |
| slicer_end.CutString(7, true)); |
| EXPECT_EQ(UTF8ToUTF16("Hello, w") + kEllipsisUTF16, |
| slicer_end.CutString(8, true)); |
| |
| // Eliding the start of a string should result in whitespace being removed |
| // after the ellipsis. |
| StringSlicer slicer_begin(text, ellipsis, false, true); |
| EXPECT_EQ(kEllipsisUTF16 + UTF8ToUTF16("world!"), |
| slicer_begin.CutString(6, true)); |
| EXPECT_EQ(kEllipsisUTF16 + UTF8ToUTF16("world!"), |
| slicer_begin.CutString(7, true)); |
| EXPECT_EQ(kEllipsisUTF16 + UTF8ToUTF16(", world!"), |
| slicer_begin.CutString(8, true)); |
| |
| // Eliding the middle of a string should *NOT* result in whitespace being |
| // removed around the ellipsis. |
| StringSlicer slicer_mid(text, ellipsis, true, false); |
| text = UTF8ToUTF16("Hey world!"); |
| EXPECT_EQ(UTF8ToUTF16("Hey") + kEllipsisUTF16 + UTF8ToUTF16("ld!"), |
| slicer_mid.CutString(6, true)); |
| EXPECT_EQ(UTF8ToUTF16("Hey ") + kEllipsisUTF16 + UTF8ToUTF16("ld!"), |
| slicer_mid.CutString(7, true)); |
| EXPECT_EQ(UTF8ToUTF16("Hey ") + kEllipsisUTF16 + UTF8ToUTF16("rld!"), |
| slicer_mid.CutString(8, true)); |
| } |
| |
| TEST(TextEliderTest, StringSlicerSurrogate) { |
| // The below is 'MUSICAL SYMBOL G CLEF' (U+1D11E), which is represented in |
| // UTF-16 as two code units forming a surrogate pair: 0xD834 0xDD1E. |
| const base::char16 kSurrogate[] = {0xD834, 0xDD1E, 0}; |
| base::string16 text(UTF8ToUTF16("abc") + kSurrogate + UTF8ToUTF16("xyz")); |
| base::string16 ellipsis(kEllipsisUTF16); |
| StringSlicer slicer(text, ellipsis, false, false); |
| |
| // Cut surrogate on the right. Should round left and exclude the surrogate. |
| EXPECT_EQ(base::string16(kEllipsisUTF16), slicer.CutString(0, true)); |
| EXPECT_EQ(UTF8ToUTF16("abc") + kEllipsisUTF16, slicer.CutString(4, true)); |
| EXPECT_EQ(text + kEllipsisUTF16, slicer.CutString(text.length(), true)); |
| |
| // Cut surrogate on the left. Should round right and exclude the surrogate. |
| StringSlicer slicer_begin(text, ellipsis, false, true); |
| EXPECT_EQ(base::string16(kEllipsisUTF16) + UTF8ToUTF16("xyz"), |
| slicer_begin.CutString(4, true)); |
| |
| // Cut surrogate in the middle. Should round right and exclude the surrogate. |
| base::string16 short_text(UTF8ToUTF16("abc") + kSurrogate); |
| StringSlicer slicer_mid(short_text, ellipsis, true, false); |
| EXPECT_EQ(UTF8ToUTF16("a") + kEllipsisUTF16, slicer_mid.CutString(2, true)); |
| |
| // String that starts with a dangling trailing surrogate. |
| base::char16 dangling_trailing_chars[] = {kSurrogate[1], 0}; |
| base::string16 dangling_trailing_text(dangling_trailing_chars); |
| StringSlicer slicer_dangling_trailing(dangling_trailing_text, ellipsis, false, |
| false); |
| EXPECT_EQ(base::string16(kEllipsisUTF16), |
| slicer_dangling_trailing.CutString(0, true)); |
| EXPECT_EQ(dangling_trailing_text + kEllipsisUTF16, |
| slicer_dangling_trailing.CutString(1, true)); |
| } |
| |
| TEST(TextEliderTest, StringSlicerCombining) { |
| // The following string contains three combining character sequences (one for |
| // each category of combining mark): |
| // LATIN SMALL LETTER E + COMBINING ACUTE ACCENT + COMBINING CEDILLA |
| // LATIN SMALL LETTER X + COMBINING ENCLOSING KEYCAP |
| // DEVANAGARI LETTER DDA + DEVANAGARI VOWEL SIGN I |
| const base::char16 kText[] = { |
| 'e', 0x301, 0x327, ' ', 'x', 0x20E3, ' ', 0x921, 0x93F, 0}; |
| base::string16 text(kText); |
| base::string16 ellipsis(kEllipsisUTF16); |
| StringSlicer slicer(text, ellipsis, false, false); |
| |
| // Attempt to cut the string for all lengths. When a combining sequence is |
| // cut, it should always round left and exclude the combining sequence. |
| // Whitespace is also cut adjacent to the ellipsis. |
| |
| // First sequence: |
| EXPECT_EQ(base::string16(kEllipsisUTF16), slicer.CutString(0, true)); |
| EXPECT_EQ(base::string16(kEllipsisUTF16), slicer.CutString(1, true)); |
| EXPECT_EQ(base::string16(kEllipsisUTF16), slicer.CutString(2, true)); |
| EXPECT_EQ(text.substr(0, 3) + kEllipsisUTF16, slicer.CutString(3, true)); |
| // Second sequence: |
| EXPECT_EQ(text.substr(0, 3) + kEllipsisUTF16, slicer.CutString(4, true)); |
| EXPECT_EQ(text.substr(0, 3) + kEllipsisUTF16, slicer.CutString(5, true)); |
| EXPECT_EQ(text.substr(0, 6) + kEllipsisUTF16, slicer.CutString(6, true)); |
| // Third sequence: |
| EXPECT_EQ(text.substr(0, 6) + kEllipsisUTF16, slicer.CutString(7, true)); |
| EXPECT_EQ(text.substr(0, 6) + kEllipsisUTF16, slicer.CutString(8, true)); |
| EXPECT_EQ(text + kEllipsisUTF16, slicer.CutString(9, true)); |
| |
| // Cut string in the middle, splitting the second sequence in half. Should |
| // round both left and right, excluding the second sequence. |
| StringSlicer slicer_mid(text, ellipsis, true, false); |
| EXPECT_EQ(text.substr(0, 4) + kEllipsisUTF16 + text.substr(6), |
| slicer_mid.CutString(9, true)); |
| |
| // String that starts with a dangling combining mark. |
| base::char16 dangling_mark_chars[] = {text[1], 0}; |
| base::string16 dangling_mark_text(dangling_mark_chars); |
| StringSlicer slicer_dangling_mark(dangling_mark_text, ellipsis, false, false); |
| EXPECT_EQ(base::string16(kEllipsisUTF16), |
| slicer_dangling_mark.CutString(0, true)); |
| EXPECT_EQ(dangling_mark_text + kEllipsisUTF16, |
| slicer_dangling_mark.CutString(1, true)); |
| } |
| |
| TEST(TextEliderTest, StringSlicerCombiningSurrogate) { |
| // The ultimate test: combining sequences comprised of surrogate pairs. |
| // The following string contains a single combining character sequence: |
| // MUSICAL SYMBOL G CLEF (U+1D11E) + MUSICAL SYMBOL COMBINING FLAG-1 (U+1D16E) |
| // Represented as four UTF-16 code units. |
| const base::char16 kText[] = {0xD834, 0xDD1E, 0xD834, 0xDD6E, 0}; |
| base::string16 text(kText); |
| base::string16 ellipsis(kEllipsisUTF16); |
| StringSlicer slicer(text, ellipsis, false, false); |
| |
| // Attempt to cut the string for all lengths. Should always round left and |
| // exclude the combining sequence. |
| EXPECT_EQ(base::string16(kEllipsisUTF16), slicer.CutString(0, true)); |
| EXPECT_EQ(base::string16(kEllipsisUTF16), slicer.CutString(1, true)); |
| EXPECT_EQ(base::string16(kEllipsisUTF16), slicer.CutString(2, true)); |
| EXPECT_EQ(base::string16(kEllipsisUTF16), slicer.CutString(3, true)); |
| EXPECT_EQ(text + kEllipsisUTF16, slicer.CutString(4, true)); |
| |
| // Cut string in the middle. Should exclude the sequence. |
| StringSlicer slicer_mid(text, ellipsis, true, false); |
| EXPECT_EQ(base::string16(kEllipsisUTF16), slicer_mid.CutString(4, true)); |
| } |
| |
| TEST(TextEliderTest, ElideString) { |
| struct TestData { |
| const char* input; |
| size_t max_len; |
| bool result; |
| const char* output; |
| } cases[] = { |
| { "Hello", 0, true, "" }, |
| { "", 0, false, "" }, |
| { "Hello, my name is Tom", 1, true, "H" }, |
| { "Hello, my name is Tom", 2, true, "He" }, |
| { "Hello, my name is Tom", 3, true, "H.m" }, |
| { "Hello, my name is Tom", 4, true, "H..m" }, |
| { "Hello, my name is Tom", 5, true, "H...m" }, |
| { "Hello, my name is Tom", 6, true, "He...m" }, |
| { "Hello, my name is Tom", 7, true, "He...om" }, |
| { "Hello, my name is Tom", 10, true, "Hell...Tom" }, |
| { "Hello, my name is Tom", 100, false, "Hello, my name is Tom" } |
| }; |
| for (size_t i = 0; i < base::size(cases); ++i) { |
| base::string16 output; |
| EXPECT_EQ(cases[i].result, |
| ElideString(UTF8ToUTF16(cases[i].input), |
| cases[i].max_len, &output)); |
| EXPECT_EQ(cases[i].output, UTF16ToUTF8(output)); |
| } |
| } |
| |
| TEST(TextEliderTest, ElideRectangleText) { |
| const FontList font_list; |
| const int line_height = font_list.GetHeight(); |
| const float test_width = GetStringWidthF(ASCIIToUTF16("Test"), font_list); |
| |
| struct TestData { |
| const char* input; |
| float available_pixel_width; |
| int available_pixel_height; |
| bool truncated_y; |
| const char* output; |
| } cases[] = { |
| { "", 0, 0, false, NULL }, |
| { "", 1, 1, false, NULL }, |
| { "Test", test_width, 0, true, NULL }, |
| { "Test", test_width, 1, false, "Test" }, |
| { "Test", test_width, line_height, false, "Test" }, |
| { "Test Test", test_width, line_height, true, "Test" }, |
| { "Test Test", test_width, line_height + 1, false, "Test|Test" }, |
| { "Test Test", test_width, line_height * 2, false, "Test|Test" }, |
| { "Test Test", test_width, line_height * 3, false, "Test|Test" }, |
| { "Test Test", test_width * 2, line_height * 2, false, "Test|Test" }, |
| { "Test Test", test_width * 3, line_height, false, "Test Test" }, |
| { "Test\nTest", test_width * 3, line_height * 2, false, "Test|Test" }, |
| { "Te\nst Te", test_width, line_height * 3, false, "Te|st|Te" }, |
| { "\nTest", test_width, line_height * 2, false, "|Test" }, |
| { "\nTest", test_width, line_height, true, "" }, |
| { "\n\nTest", test_width, line_height * 3, false, "||Test" }, |
| { "\n\nTest", test_width, line_height * 2, true, "|" }, |
| { "Test\n", 2 * test_width, line_height * 5, false, "Test|" }, |
| { "Test\n\n", 2 * test_width, line_height * 5, false, "Test||" }, |
| { "Test\n\n\n", 2 * test_width, line_height * 5, false, "Test|||" }, |
| { "Test\nTest\n\n", 2 * test_width, line_height * 5, false, "Test|Test||" }, |
| { "Test\n\nTest\n", 2 * test_width, line_height * 5, false, "Test||Test|" }, |
| { "Test\n\n\nTest", 2 * test_width, line_height * 5, false, "Test|||Test" }, |
| { "Te ", test_width, line_height, false, "Te" }, |
| { "Te Te Test", test_width, 3 * line_height, false, "Te|Te|Test" }, |
| }; |
| |
| for (size_t i = 0; i < base::size(cases); ++i) { |
| std::vector<base::string16> lines; |
| EXPECT_EQ(cases[i].truncated_y ? INSUFFICIENT_SPACE_VERTICAL : 0, |
| ElideRectangleText(UTF8ToUTF16(cases[i].input), |
| font_list, |
| cases[i].available_pixel_width, |
| cases[i].available_pixel_height, |
| TRUNCATE_LONG_WORDS, |
| &lines)); |
| if (cases[i].output) { |
| const std::string result = |
| UTF16ToUTF8(base::JoinString(lines, ASCIIToUTF16("|"))); |
| EXPECT_EQ(cases[i].output, result) << "Case " << i << " failed!"; |
| } else { |
| EXPECT_TRUE(lines.empty()) << "Case " << i << " failed!"; |
| } |
| } |
| } |
| |
| TEST(TextEliderTest, ElideRectangleTextFirstWordTruncated) { |
| const FontList font_list; |
| const int line_height = font_list.GetHeight(); |
| |
| const float test_width = GetStringWidthF(ASCIIToUTF16("Test"), font_list); |
| const float tes_width = GetStringWidthF(ASCIIToUTF16("Tes"), font_list); |
| |
| std::vector<base::string16> lines; |
| |
| auto result_for_width = [&](const char* input, float width) { |
| lines.clear(); |
| return ElideRectangleText(ASCIIToUTF16(input), font_list, width, |
| line_height * 4, WRAP_LONG_WORDS, &lines); |
| }; |
| |
| // Test base case. |
| EXPECT_EQ(0, result_for_width("Test", test_width)); |
| EXPECT_EQ(1u, lines.size()); |
| EXPECT_EQ(ASCIIToUTF16("Test"), lines[0]); |
| |
| // First word truncated. |
| EXPECT_EQ(INSUFFICIENT_SPACE_FOR_FIRST_WORD, |
| result_for_width("Test", tes_width)); |
| EXPECT_EQ(2u, lines.size()); |
| EXPECT_EQ(ASCIIToUTF16("Tes"), lines[0]); |
| EXPECT_EQ(ASCIIToUTF16("t"), lines[1]); |
| |
| // Two words truncated. |
| EXPECT_EQ(INSUFFICIENT_SPACE_FOR_FIRST_WORD, |
| result_for_width("Test\nTest", tes_width)); |
| EXPECT_EQ(4u, lines.size()); |
| EXPECT_EQ(ASCIIToUTF16("Tes"), lines[0]); |
| EXPECT_EQ(ASCIIToUTF16("t"), lines[1]); |
| EXPECT_EQ(ASCIIToUTF16("Tes"), lines[2]); |
| EXPECT_EQ(ASCIIToUTF16("t"), lines[3]); |
| |
| // Word truncated, but not the first. |
| EXPECT_EQ(0, result_for_width("T Test", tes_width)); |
| EXPECT_EQ(3u, lines.size()); |
| EXPECT_EQ(ASCIIToUTF16("T"), lines[0]); |
| EXPECT_EQ(ASCIIToUTF16("Tes"), lines[1]); |
| EXPECT_EQ(ASCIIToUTF16("t"), lines[2]); |
| |
| // Leading \n. |
| EXPECT_EQ(0, result_for_width("\nTest", tes_width)); |
| EXPECT_EQ(3u, lines.size()); |
| EXPECT_EQ(ASCIIToUTF16(""), lines[0]); |
| EXPECT_EQ(ASCIIToUTF16("Tes"), lines[1]); |
| EXPECT_EQ(ASCIIToUTF16("t"), lines[2]); |
| } |
| |
| TEST(TextEliderTest, ElideRectangleTextPunctuation) { |
| const FontList font_list; |
| const int line_height = font_list.GetHeight(); |
| const float test_width = GetStringWidthF(ASCIIToUTF16("Test"), font_list); |
| const float test_t_width = GetStringWidthF(ASCIIToUTF16("Test T"), font_list); |
| constexpr int kResultMask = |
| INSUFFICIENT_SPACE_HORIZONTAL | INSUFFICIENT_SPACE_VERTICAL; |
| |
| struct TestData { |
| const char* input; |
| float available_pixel_width; |
| int available_pixel_height; |
| bool wrap_words; |
| bool truncated_x; |
| const char* output; |
| } cases[] = { |
| { "Test T.", test_t_width, line_height * 2, false, false, "Test|T." }, |
| { "Test T ?", test_t_width, line_height * 2, false, false, "Test|T ?" }, |
| { "Test. Test", test_width, line_height * 3, false, true, "Test|Test" }, |
| { "Test. Test", test_width, line_height * 3, true, false, "Test|.|Test" }, |
| }; |
| |
| for (size_t i = 0; i < base::size(cases); ++i) { |
| std::vector<base::string16> lines; |
| const WordWrapBehavior wrap_behavior = |
| (cases[i].wrap_words ? WRAP_LONG_WORDS : TRUNCATE_LONG_WORDS); |
| EXPECT_EQ(cases[i].truncated_x ? INSUFFICIENT_SPACE_HORIZONTAL : 0, |
| ElideRectangleText(UTF8ToUTF16(cases[i].input), font_list, |
| cases[i].available_pixel_width, |
| cases[i].available_pixel_height, wrap_behavior, |
| &lines) & |
| kResultMask); |
| if (cases[i].output) { |
| const std::string result = |
| UTF16ToUTF8(base::JoinString(lines, base::ASCIIToUTF16("|"))); |
| EXPECT_EQ(cases[i].output, result) << "Case " << i << " failed!"; |
| } else { |
| EXPECT_TRUE(lines.empty()) << "Case " << i << " failed!"; |
| } |
| } |
| } |
| |
| TEST(TextEliderTest, ElideRectangleTextLongWords) { |
| const FontList font_list; |
| const int kAvailableHeight = 1000; |
| const base::string16 kElidedTesting = |
| UTF8ToUTF16(std::string("Tes") + kEllipsis); |
| const float elided_width = GetStringWidthF(kElidedTesting, font_list); |
| const float test_width = GetStringWidthF(ASCIIToUTF16("Test"), font_list); |
| constexpr int kResultMask = |
| INSUFFICIENT_SPACE_HORIZONTAL | INSUFFICIENT_SPACE_VERTICAL; |
| |
| struct TestData { |
| const char* input; |
| float available_pixel_width; |
| WordWrapBehavior wrap_behavior; |
| bool truncated_x; |
| const char* output; |
| } cases[] = { |
| { "Testing", test_width, IGNORE_LONG_WORDS, false, "Testing" }, |
| { "X Testing", test_width, IGNORE_LONG_WORDS, false, "X|Testing" }, |
| { "Test Testing", test_width, IGNORE_LONG_WORDS, false, "Test|Testing" }, |
| { "Test\nTesting", test_width, IGNORE_LONG_WORDS, false, "Test|Testing" }, |
| { "Test Tests ", test_width, IGNORE_LONG_WORDS, false, "Test|Tests" }, |
| { "Test Tests T", test_width, IGNORE_LONG_WORDS, false, "Test|Tests|T" }, |
| |
| { "Testing", elided_width, ELIDE_LONG_WORDS, true, "Tes..." }, |
| { "X Testing", elided_width, ELIDE_LONG_WORDS, true, "X|Tes..." }, |
| { "Test Testing", elided_width, ELIDE_LONG_WORDS, true, "Test|Tes..." }, |
| { "Test\nTesting", elided_width, ELIDE_LONG_WORDS, true, "Test|Tes..." }, |
| |
| { "Testing", test_width, TRUNCATE_LONG_WORDS, true, "Test" }, |
| { "X Testing", test_width, TRUNCATE_LONG_WORDS, true, "X|Test" }, |
| { "Test Testing", test_width, TRUNCATE_LONG_WORDS, true, "Test|Test" }, |
| { "Test\nTesting", test_width, TRUNCATE_LONG_WORDS, true, "Test|Test" }, |
| { "Test Tests ", test_width, TRUNCATE_LONG_WORDS, true, "Test|Test" }, |
| { "Test Tests T", test_width, TRUNCATE_LONG_WORDS, true, "Test|Test|T" }, |
| |
| { "Testing", test_width, WRAP_LONG_WORDS, false, "Test|ing" }, |
| { "X Testing", test_width, WRAP_LONG_WORDS, false, "X|Test|ing" }, |
| { "Test Testing", test_width, WRAP_LONG_WORDS, false, "Test|Test|ing" }, |
| { "Test\nTesting", test_width, WRAP_LONG_WORDS, false, "Test|Test|ing" }, |
| { "Test Tests ", test_width, WRAP_LONG_WORDS, false, "Test|Test|s" }, |
| { "Test Tests T", test_width, WRAP_LONG_WORDS, false, "Test|Test|s T" }, |
| { "TestTestTest", test_width, WRAP_LONG_WORDS, false, "Test|Test|Test" }, |
| { "TestTestTestT", test_width, WRAP_LONG_WORDS, false, "Test|Test|Test|T" }, |
| }; |
| |
| for (size_t i = 0; i < base::size(cases); ++i) { |
| std::vector<base::string16> lines; |
| EXPECT_EQ( |
| cases[i].truncated_x ? INSUFFICIENT_SPACE_HORIZONTAL : 0, |
| ElideRectangleText(UTF8ToUTF16(cases[i].input), font_list, |
| cases[i].available_pixel_width, kAvailableHeight, |
| cases[i].wrap_behavior, &lines) & |
| kResultMask); |
| std::string expected_output(cases[i].output); |
| base::ReplaceSubstringsAfterOffset(&expected_output, 0, "...", kEllipsis); |
| const std::string result = |
| UTF16ToUTF8(base::JoinString(lines, base::ASCIIToUTF16("|"))); |
| EXPECT_EQ(expected_output, result) << "Case " << i << " failed!"; |
| } |
| } |
| |
| // This test is to make sure that the width of each wrapped line does not |
| // exceed the available width. On some platform like Mac, this test used to |
| // fail because the truncated integer width is returned for the string |
| // and the accumulation of the truncated values causes the elide function |
| // to wrap incorrectly. |
| TEST(TextEliderTest, ElideRectangleTextCheckLineWidth) { |
| FontList font_list; |
| #if defined(OS_MACOSX) && !defined(OS_IOS) |
| // Use a specific font to expose the line width exceeding problem. |
| font_list = FontList(Font("LucidaGrande", 12)); |
| #endif |
| const float kAvailableWidth = 235; |
| const int kAvailableHeight = 1000; |
| const char text[] = "that Russian place we used to go to after fencing"; |
| std::vector<base::string16> lines; |
| EXPECT_EQ(0, ElideRectangleText(UTF8ToUTF16(text), |
| font_list, |
| kAvailableWidth, |
| kAvailableHeight, |
| WRAP_LONG_WORDS, |
| &lines)); |
| ASSERT_EQ(2u, lines.size()); |
| EXPECT_LE(GetStringWidthF(lines[0], font_list), kAvailableWidth); |
| EXPECT_LE(GetStringWidthF(lines[1], font_list), kAvailableWidth); |
| } |
| |
| #if defined(OS_CHROMEOS) |
| // This test was created specifically to test a message from crbug.com/415213. |
| // It tests that width of concatenation of words equals sum of widths of the |
| // words. |
| TEST(TextEliderTest, ElideRectangleTextCheckConcatWidthEqualsSumOfWidths) { |
| FontList font_list; |
| font_list = FontList("Noto Sans UI,ui-sans, 12px"); |
| SetFontRenderParamsDeviceScaleFactor(1.25f); |
| #define WIDTH(x) GetStringWidthF(UTF8ToUTF16(x), font_list) |
| EXPECT_EQ(WIDTH("The administrator for this account has"), |
| WIDTH("The ") + WIDTH("administrator ") + WIDTH("for ") + |
| WIDTH("this ") + WIDTH("account ") + WIDTH("has")); |
| #undef WIDTH |
| SetFontRenderParamsDeviceScaleFactor(1.0f); |
| } |
| #endif // defined(OS_CHROMEOS) |
| |
| TEST(TextEliderTest, ElideRectangleString) { |
| struct TestData { |
| const char* input; |
| int max_rows; |
| int max_cols; |
| bool result; |
| const char* output; |
| } cases[] = { |
| { "", 0, 0, false, "" }, |
| { "", 1, 1, false, "" }, |
| { "Hi, my name is\nTom", 0, 0, true, "..." }, |
| { "Hi, my name is\nTom", 1, 0, true, "\n..." }, |
| { "Hi, my name is\nTom", 0, 1, true, "..." }, |
| { "Hi, my name is\nTom", 1, 1, true, "H\n..." }, |
| { "Hi, my name is\nTom", 2, 1, true, "H\ni\n..." }, |
| { "Hi, my name is\nTom", 3, 1, true, "H\ni\n,\n..." }, |
| { "Hi, my name is\nTom", 4, 1, true, "H\ni\n,\n \n..." }, |
| { "Hi, my name is\nTom", 5, 1, true, "H\ni\n,\n \nm\n..." }, |
| { "Hi, my name is\nTom", 0, 2, true, "..." }, |
| { "Hi, my name is\nTom", 1, 2, true, "Hi\n..." }, |
| { "Hi, my name is\nTom", 2, 2, true, "Hi\n, \n..." }, |
| { "Hi, my name is\nTom", 3, 2, true, "Hi\n, \nmy\n..." }, |
| { "Hi, my name is\nTom", 4, 2, true, "Hi\n, \nmy\n n\n..." }, |
| { "Hi, my name is\nTom", 5, 2, true, "Hi\n, \nmy\n n\nam\n..." }, |
| { "Hi, my name is\nTom", 0, 3, true, "..." }, |
| { "Hi, my name is\nTom", 1, 3, true, "Hi,\n..." }, |
| { "Hi, my name is\nTom", 2, 3, true, "Hi,\n my\n..." }, |
| { "Hi, my name is\nTom", 3, 3, true, "Hi,\n my\n na\n..." }, |
| { "Hi, my name is\nTom", 4, 3, true, "Hi,\n my\n na\nme \n..." }, |
| { "Hi, my name is\nTom", 5, 3, true, "Hi,\n my\n na\nme \nis\n..." }, |
| { "Hi, my name is\nTom", 1, 4, true, "Hi, \n..." }, |
| { "Hi, my name is\nTom", 2, 4, true, "Hi, \nmy n\n..." }, |
| { "Hi, my name is\nTom", 3, 4, true, "Hi, \nmy n\name \n..." }, |
| { "Hi, my name is\nTom", 4, 4, true, "Hi, \nmy n\name \nis\n..." }, |
| { "Hi, my name is\nTom", 5, 4, false, "Hi, \nmy n\name \nis\nTom" }, |
| { "Hi, my name is\nTom", 1, 5, true, "Hi, \n..." }, |
| { "Hi, my name is\nTom", 2, 5, true, "Hi, \nmy na\n..." }, |
| { "Hi, my name is\nTom", 3, 5, true, "Hi, \nmy na\nme \n..." }, |
| { "Hi, my name is\nTom", 4, 5, true, "Hi, \nmy na\nme \nis\n..." }, |
| { "Hi, my name is\nTom", 5, 5, false, "Hi, \nmy na\nme \nis\nTom" }, |
| { "Hi, my name is\nTom", 1, 6, true, "Hi, \n..." }, |
| { "Hi, my name is\nTom", 2, 6, true, "Hi, \nmy \n..." }, |
| { "Hi, my name is\nTom", 3, 6, true, "Hi, \nmy \nname \n..." }, |
| { "Hi, my name is\nTom", 4, 6, true, "Hi, \nmy \nname \nis\n..." }, |
| { "Hi, my name is\nTom", 5, 6, false, "Hi, \nmy \nname \nis\nTom" }, |
| { "Hi, my name is\nTom", 1, 7, true, "Hi, \n..." }, |
| { "Hi, my name is\nTom", 2, 7, true, "Hi, \nmy \n..." }, |
| { "Hi, my name is\nTom", 3, 7, true, "Hi, \nmy \nname \n..." }, |
| { "Hi, my name is\nTom", 4, 7, true, "Hi, \nmy \nname \nis\n..." }, |
| { "Hi, my name is\nTom", 5, 7, false, "Hi, \nmy \nname \nis\nTom" }, |
| { "Hi, my name is\nTom", 1, 8, true, "Hi, my \n..." }, |
| { "Hi, my name is\nTom", 2, 8, true, "Hi, my \nname \n..." }, |
| { "Hi, my name is\nTom", 3, 8, true, "Hi, my \nname \nis\n..." }, |
| { "Hi, my name is\nTom", 4, 8, false, "Hi, my \nname \nis\nTom" }, |
| { "Hi, my name is\nTom", 1, 9, true, "Hi, my \n..." }, |
| { "Hi, my name is\nTom", 2, 9, true, "Hi, my \nname is\n..." }, |
| { "Hi, my name is\nTom", 3, 9, false, "Hi, my \nname is\nTom" }, |
| { "Hi, my name is\nTom", 1, 10, true, "Hi, my \n..." }, |
| { "Hi, my name is\nTom", 2, 10, true, "Hi, my \nname is\n..." }, |
| { "Hi, my name is\nTom", 3, 10, false, "Hi, my \nname is\nTom" }, |
| { "Hi, my name is\nTom", 1, 11, true, "Hi, my \n..." }, |
| { "Hi, my name is\nTom", 2, 11, true, "Hi, my \nname is\n..." }, |
| { "Hi, my name is\nTom", 3, 11, false, "Hi, my \nname is\nTom" }, |
| { "Hi, my name is\nTom", 1, 12, true, "Hi, my \n..." }, |
| { "Hi, my name is\nTom", 2, 12, true, "Hi, my \nname is\n..." }, |
| { "Hi, my name is\nTom", 3, 12, false, "Hi, my \nname is\nTom" }, |
| { "Hi, my name is\nTom", 1, 13, true, "Hi, my name \n..." }, |
| { "Hi, my name is\nTom", 2, 13, true, "Hi, my name \nis\n..." }, |
| { "Hi, my name is\nTom", 3, 13, false, "Hi, my name \nis\nTom" }, |
| { "Hi, my name is\nTom", 1, 20, true, "Hi, my name is\n..." }, |
| { "Hi, my name is\nTom", 2, 20, false, "Hi, my name is\nTom" }, |
| { "Hi, my name is Tom", 1, 40, false, "Hi, my name is Tom" }, |
| }; |
| base::string16 output; |
| for (size_t i = 0; i < base::size(cases); ++i) { |
| EXPECT_EQ(cases[i].result, |
| ElideRectangleString(UTF8ToUTF16(cases[i].input), |
| cases[i].max_rows, cases[i].max_cols, |
| true, &output)); |
| EXPECT_EQ(cases[i].output, UTF16ToUTF8(output)); |
| } |
| } |
| |
| TEST(TextEliderTest, ElideRectangleStringNotStrict) { |
| struct TestData { |
| const char* input; |
| int max_rows; |
| int max_cols; |
| bool result; |
| const char* output; |
| } cases[] = { |
| { "", 0, 0, false, "" }, |
| { "", 1, 1, false, "" }, |
| { "Hi, my name_is\nDick", 0, 0, true, "..." }, |
| { "Hi, my name_is\nDick", 1, 0, true, "\n..." }, |
| { "Hi, my name_is\nDick", 0, 1, true, "..." }, |
| { "Hi, my name_is\nDick", 1, 1, true, "H\n..." }, |
| { "Hi, my name_is\nDick", 2, 1, true, "H\ni\n..." }, |
| { "Hi, my name_is\nDick", 3, 1, true, "H\ni\n,\n..." }, |
| { "Hi, my name_is\nDick", 4, 1, true, "H\ni\n,\n \n..." }, |
| { "Hi, my name_is\nDick", 5, 1, true, "H\ni\n,\n \nm\n..." }, |
| { "Hi, my name_is\nDick", 0, 2, true, "..." }, |
| { "Hi, my name_is\nDick", 1, 2, true, "Hi\n..." }, |
| { "Hi, my name_is\nDick", 2, 2, true, "Hi\n, \n..." }, |
| { "Hi, my name_is\nDick", 3, 2, true, "Hi\n, \nmy\n..." }, |
| { "Hi, my name_is\nDick", 4, 2, true, "Hi\n, \nmy\n n\n..." }, |
| { "Hi, my name_is\nDick", 5, 2, true, "Hi\n, \nmy\n n\nam\n..." }, |
| { "Hi, my name_is\nDick", 0, 3, true, "..." }, |
| { "Hi, my name_is\nDick", 1, 3, true, "Hi,\n..." }, |
| { "Hi, my name_is\nDick", 2, 3, true, "Hi,\n my\n..." }, |
| { "Hi, my name_is\nDick", 3, 3, true, "Hi,\n my\n na\n..." }, |
| { "Hi, my name_is\nDick", 4, 3, true, "Hi,\n my\n na\nme_\n..." }, |
| { "Hi, my name_is\nDick", 5, 3, true, "Hi,\n my\n na\nme_\nis\n..." }, |
| { "Hi, my name_is\nDick", 1, 4, true, "Hi, ..." }, |
| { "Hi, my name_is\nDick", 2, 4, true, "Hi, my n\n..." }, |
| { "Hi, my name_is\nDick", 3, 4, true, "Hi, my n\name_\n..." }, |
| { "Hi, my name_is\nDick", 4, 4, true, "Hi, my n\name_\nis\n..." }, |
| { "Hi, my name_is\nDick", 5, 4, false, "Hi, my n\name_\nis\nDick" }, |
| { "Hi, my name_is\nDick", 1, 5, true, "Hi, ..." }, |
| { "Hi, my name_is\nDick", 2, 5, true, "Hi, my na\n..." }, |
| { "Hi, my name_is\nDick", 3, 5, true, "Hi, my na\nme_is\n..." }, |
| { "Hi, my name_is\nDick", 4, 5, true, "Hi, my na\nme_is\n\n..." }, |
| { "Hi, my name_is\nDick", 5, 5, false, "Hi, my na\nme_is\n\nDick" }, |
| { "Hi, my name_is\nDick", 1, 6, true, "Hi, ..." }, |
| { "Hi, my name_is\nDick", 2, 6, true, "Hi, my nam\n..." }, |
| { "Hi, my name_is\nDick", 3, 6, true, "Hi, my nam\ne_is\n..." }, |
| { "Hi, my name_is\nDick", 4, 6, false, "Hi, my nam\ne_is\nDick" }, |
| { "Hi, my name_is\nDick", 5, 6, false, "Hi, my nam\ne_is\nDick" }, |
| { "Hi, my name_is\nDick", 1, 7, true, "Hi, ..." }, |
| { "Hi, my name_is\nDick", 2, 7, true, "Hi, my name\n..." }, |
| { "Hi, my name_is\nDick", 3, 7, true, "Hi, my name\n_is\n..." }, |
| { "Hi, my name_is\nDick", 4, 7, false, "Hi, my name\n_is\nDick" }, |
| { "Hi, my name_is\nDick", 5, 7, false, "Hi, my name\n_is\nDick" }, |
| { "Hi, my name_is\nDick", 1, 8, true, "Hi, my n\n..." }, |
| { "Hi, my name_is\nDick", 2, 8, true, "Hi, my n\name_is\n..." }, |
| { "Hi, my name_is\nDick", 3, 8, false, "Hi, my n\name_is\nDick" }, |
| { "Hi, my name_is\nDick", 1, 9, true, "Hi, my ..." }, |
| { "Hi, my name_is\nDick", 2, 9, true, "Hi, my name_is\n..." }, |
| { "Hi, my name_is\nDick", 3, 9, false, "Hi, my name_is\nDick" }, |
| { "Hi, my name_is\nDick", 1, 10, true, "Hi, my ..." }, |
| { "Hi, my name_is\nDick", 2, 10, true, "Hi, my name_is\n..." }, |
| { "Hi, my name_is\nDick", 3, 10, false, "Hi, my name_is\nDick" }, |
| { "Hi, my name_is\nDick", 1, 11, true, "Hi, my ..." }, |
| { "Hi, my name_is\nDick", 2, 11, true, "Hi, my name_is\n..." }, |
| { "Hi, my name_is\nDick", 3, 11, false, "Hi, my name_is\nDick" }, |
| { "Hi, my name_is\nDick", 1, 12, true, "Hi, my ..." }, |
| { "Hi, my name_is\nDick", 2, 12, true, "Hi, my name_is\n..." }, |
| { "Hi, my name_is\nDick", 3, 12, false, "Hi, my name_is\nDick" }, |
| { "Hi, my name_is\nDick", 1, 13, true, "Hi, my ..." }, |
| { "Hi, my name_is\nDick", 2, 13, true, "Hi, my name_is\n..." }, |
| { "Hi, my name_is\nDick", 3, 13, false, "Hi, my name_is\nDick" }, |
| { "Hi, my name_is\nDick", 1, 20, true, "Hi, my name_is\n..." }, |
| { "Hi, my name_is\nDick", 2, 20, false, "Hi, my name_is\nDick" }, |
| { "Hi, my name_is Dick", 1, 40, false, "Hi, my name_is Dick" }, |
| }; |
| base::string16 output; |
| for (size_t i = 0; i < base::size(cases); ++i) { |
| EXPECT_EQ(cases[i].result, |
| ElideRectangleString(UTF8ToUTF16(cases[i].input), |
| cases[i].max_rows, cases[i].max_cols, |
| false, &output)); |
| EXPECT_EQ(cases[i].output, UTF16ToUTF8(output)); |
| } |
| } |
| |
| TEST(TextEliderTest, ElideRectangleWide16) { |
| // Two greek words separated by space. |
| const base::string16 str(WideToUTF16( |
| L"\x03a0\x03b1\x03b3\x03ba\x03cc\x03c3\x03bc\x03b9" |
| L"\x03bf\x03c2\x0020\x0399\x03c3\x03c4\x03cc\x03c2")); |
| const base::string16 out1(WideToUTF16( |
| L"\x03a0\x03b1\x03b3\x03ba\n" |
| L"\x03cc\x03c3\x03bc\x03b9\n" |
| L"...")); |
| const base::string16 out2(WideToUTF16( |
| L"\x03a0\x03b1\x03b3\x03ba\x03cc\x03c3\x03bc\x03b9\x03bf\x03c2\x0020\n" |
| L"\x0399\x03c3\x03c4\x03cc\x03c2")); |
| base::string16 output; |
| EXPECT_TRUE(ElideRectangleString(str, 2, 4, true, &output)); |
| EXPECT_EQ(out1, output); |
| EXPECT_FALSE(ElideRectangleString(str, 2, 12, true, &output)); |
| EXPECT_EQ(out2, output); |
| } |
| |
| TEST(TextEliderTest, ElideRectangleWide32) { |
| // Four U+1D49C MATHEMATICAL SCRIPT CAPITAL A followed by space "aaaaa". |
| const base::string16 str(UTF8ToUTF16( |
| "\xF0\x9D\x92\x9C\xF0\x9D\x92\x9C\xF0\x9D\x92\x9C\xF0\x9D\x92\x9C" |
| " aaaaa")); |
| const base::string16 out(UTF8ToUTF16( |
| "\xF0\x9D\x92\x9C\xF0\x9D\x92\x9C\xF0\x9D\x92\x9C\n" |
| "\xF0\x9D\x92\x9C \naaa\n...")); |
| base::string16 output; |
| EXPECT_TRUE(ElideRectangleString(str, 3, 3, true, &output)); |
| EXPECT_EQ(out, output); |
| } |
| |
| TEST(TextEliderTest, TruncateString) { |
| base::string16 str = ASCIIToUTF16("fooooey bxxxar baz "); |
| |
| // Test breaking at character 0. |
| EXPECT_EQ(base::string16(), TruncateString(str, 0, WORD_BREAK)); |
| EXPECT_EQ(base::string16(), TruncateString(str, 0, CHARACTER_BREAK)); |
| |
| // Test breaking at character 1. |
| EXPECT_EQ(L"\x2026", UTF16ToWide(TruncateString(str, 1, WORD_BREAK))); |
| EXPECT_EQ(L"\x2026", UTF16ToWide(TruncateString(str, 1, CHARACTER_BREAK))); |
| |
| // Test breaking in the middle of the first word. |
| EXPECT_EQ(L"f\x2026", UTF16ToWide(TruncateString(str, 2, WORD_BREAK))); |
| EXPECT_EQ(L"f\x2026", UTF16ToWide(TruncateString(str, 2, CHARACTER_BREAK))); |
| |
| // Test breaking in between words. |
| EXPECT_EQ(L"fooooey\x2026", UTF16ToWide(TruncateString(str, 9, WORD_BREAK))); |
| EXPECT_EQ(L"fooooey\x2026", |
| UTF16ToWide(TruncateString(str, 9, CHARACTER_BREAK))); |
| |
| // Test breaking at the start of a later word. |
| EXPECT_EQ(L"fooooey\x2026", UTF16ToWide(TruncateString(str, 11, WORD_BREAK))); |
| EXPECT_EQ(L"fooooey\x2026", |
| UTF16ToWide(TruncateString(str, 11, CHARACTER_BREAK))); |
| |
| // Test breaking in the middle of a word. |
| EXPECT_EQ(L"fooooey\x2026", UTF16ToWide(TruncateString(str, 12, WORD_BREAK))); |
| EXPECT_EQ(L"fooooey\x2026", |
| UTF16ToWide(TruncateString(str, 12, CHARACTER_BREAK))); |
| EXPECT_EQ(L"fooooey\x2026", UTF16ToWide(TruncateString(str, 14, WORD_BREAK))); |
| EXPECT_EQ(L"fooooey bx\x2026", |
| UTF16ToWide(TruncateString(str, 14, CHARACTER_BREAK))); |
| |
| // Test breaking in whitespace at the end of the string. |
| EXPECT_EQ(L"fooooey bxxxar baz\x2026", |
| UTF16ToWide(TruncateString(str, 22, WORD_BREAK))); |
| EXPECT_EQ(L"fooooey bxxxar baz\x2026", |
| UTF16ToWide(TruncateString(str, 22, CHARACTER_BREAK))); |
| |
| // Test breaking at the end of the string. |
| EXPECT_EQ(str, TruncateString(str, str.length(), WORD_BREAK)); |
| EXPECT_EQ(str, TruncateString(str, str.length(), CHARACTER_BREAK)); |
| |
| // Test breaking past the end of the string. |
| EXPECT_EQ(str, TruncateString(str, str.length() + 10, WORD_BREAK)); |
| EXPECT_EQ(str, TruncateString(str, str.length() + 10, CHARACTER_BREAK)); |
| |
| |
| // Tests of strings with leading whitespace: |
| base::string16 str2 = ASCIIToUTF16(" foo"); |
| |
| // Test breaking in leading whitespace. |
| EXPECT_EQ(L"\x2026", UTF16ToWide(TruncateString(str2, 2, WORD_BREAK))); |
| EXPECT_EQ(L"\x2026", UTF16ToWide(TruncateString(str2, 2, CHARACTER_BREAK))); |
| |
| // Test breaking at the beginning of the first word, with leading whitespace. |
| EXPECT_EQ(L"\x2026", UTF16ToWide(TruncateString(str2, 3, WORD_BREAK))); |
| EXPECT_EQ(L"\x2026", UTF16ToWide(TruncateString(str2, 3, CHARACTER_BREAK))); |
| |
| // Test breaking in the middle of the first word, with leading whitespace. |
| EXPECT_EQ(L"\x2026", UTF16ToWide(TruncateString(str2, 4, WORD_BREAK))); |
| EXPECT_EQ(L"\x2026", UTF16ToWide(TruncateString(str2, 4, CHARACTER_BREAK))); |
| EXPECT_EQ(L" f\x2026", UTF16ToWide(TruncateString(str2, 5, WORD_BREAK))); |
| EXPECT_EQ(L" f\x2026", |
| UTF16ToWide(TruncateString(str2, 5, CHARACTER_BREAK))); |
| } |
| |
| } // namespace gfx |