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36 /*! \internal \file
37 * \brief
38 * Tests for string utility functions and classes.
39 *
40 * For development, the tests can be run with a '-stdout' command-line option
41 * to print out the help to stdout instead of using the XML reference
42 * framework.
43 *
44 * \author Teemu Murtola <teemu.murtola@gmail.com>
45 * \ingroup module_utility
46 */
47 #include "gmxpre.h"
48
49 #include "gromacs/utility/stringutil.h"
50
51 #include <string>
52 #include <vector>
53
54 #include <gmock/gmock.h>
55 #include <gtest/gtest.h>
56
57 #include "gromacs/utility/arrayref.h"
58 #include "gromacs/utility/exceptions.h"
59
60 #include "testutils/refdata.h"
61 #include "testutils/stringtest.h"
62
63 namespace gmx
64 {
65 namespace test
66 {
67 namespace
68 {
69
70 /********************************************************************
71 * Tests for simple string utilities
72 */
73
TEST(StringUtilityTest,StartsWith)74 TEST(StringUtilityTest, StartsWith)
75 {
76 EXPECT_TRUE(gmx::startsWith("foobar", "foo"));
77 EXPECT_TRUE(gmx::startsWith("foobar", ""));
78 EXPECT_TRUE(gmx::startsWith("", ""));
79 EXPECT_FALSE(gmx::startsWith("", "foobar"));
80 EXPECT_FALSE(gmx::startsWith("foo", "foobar"));
81 EXPECT_FALSE(gmx::startsWith("foobar", "oob"));
82 EXPECT_TRUE(gmx::startsWith(std::string("foobar"), "foo"));
83 EXPECT_TRUE(gmx::startsWith(std::string("foobar"), ""));
84 EXPECT_TRUE(gmx::startsWith(std::string(""), ""));
85 EXPECT_FALSE(gmx::startsWith(std::string(""), "foobar"));
86 EXPECT_FALSE(gmx::startsWith(std::string("foo"), "foobar"));
87 EXPECT_FALSE(gmx::startsWith(std::string("foobar"), "oob"));
88 }
89
TEST(StringUtilityTest,EndsWith)90 TEST(StringUtilityTest, EndsWith)
91 {
92 EXPECT_TRUE(gmx::endsWith("foobar", "bar"));
93 EXPECT_TRUE(gmx::endsWith("foobar", nullptr));
94 EXPECT_TRUE(gmx::endsWith("foobar", ""));
95 EXPECT_TRUE(gmx::endsWith("", ""));
96 EXPECT_FALSE(gmx::endsWith("", "foobar"));
97 EXPECT_FALSE(gmx::endsWith("foobar", "bbar"));
98 EXPECT_FALSE(gmx::endsWith("foobar", "barr"));
99 EXPECT_FALSE(gmx::endsWith("foobar", "foofoobar"));
100 }
101
TEST(StringUtilityTest,StripSuffixIfPresent)102 TEST(StringUtilityTest, StripSuffixIfPresent)
103 {
104 EXPECT_EQ("foo", gmx::stripSuffixIfPresent("foobar", "bar"));
105 EXPECT_EQ("foobar", gmx::stripSuffixIfPresent("foobar", nullptr));
106 EXPECT_EQ("foobar", gmx::stripSuffixIfPresent("foobar", ""));
107 EXPECT_EQ("foobar", gmx::stripSuffixIfPresent("foobar", "bbar"));
108 EXPECT_EQ("foobar", gmx::stripSuffixIfPresent("foobar", "barr"));
109 EXPECT_EQ("foobar", gmx::stripSuffixIfPresent("foobar", "foofoobar"));
110 }
111
TEST(StringUtilityTest,StripString)112 TEST(StringUtilityTest, StripString)
113 {
114 EXPECT_EQ("", gmx::stripString(""));
115 EXPECT_EQ("foo", gmx::stripString("foo"));
116 EXPECT_EQ("foo", gmx::stripString(" foo"));
117 EXPECT_EQ("foo", gmx::stripString("foo "));
118 EXPECT_EQ("f o o", gmx::stripString(" f o o "));
119 }
120
TEST(StringUtilityTest,SplitString)121 TEST(StringUtilityTest, SplitString)
122 {
123 using ::testing::ElementsAre;
124 using ::testing::IsEmpty;
125 using ::testing::Matcher;
126 Matcher<std::vector<std::string>> matcher = ElementsAre("foo", "bar");
127 EXPECT_THAT(gmx::splitString("foo bar"), matcher);
128 EXPECT_THAT(gmx::splitString(" foo bar"), matcher);
129 EXPECT_THAT(gmx::splitString("foo bar "), matcher);
130 EXPECT_THAT(gmx::splitString(" foo \t bar "), matcher);
131 EXPECT_THAT(gmx::splitString(""), IsEmpty());
132 EXPECT_THAT(gmx::splitString(" "), IsEmpty());
133 }
134
TEST(StringUtilityTest,SplitDelimitedString)135 TEST(StringUtilityTest, SplitDelimitedString)
136 {
137 using ::testing::ElementsAre;
138 using ::testing::IsEmpty;
139 EXPECT_THAT(gmx::splitDelimitedString("foo;bar", ';'), ElementsAre("foo", "bar"));
140 EXPECT_THAT(gmx::splitDelimitedString(";foo;bar;", ';'), ElementsAre("", "foo", "bar", ""));
141 EXPECT_THAT(gmx::splitDelimitedString("foo;;bar", ';'), ElementsAre("foo", "", "bar"));
142 EXPECT_THAT(gmx::splitDelimitedString("foo", ';'), ElementsAre("foo"));
143 EXPECT_THAT(gmx::splitDelimitedString(";", ';'), ElementsAre("", ""));
144 EXPECT_THAT(gmx::splitDelimitedString("", ';'), IsEmpty());
145 }
146
TEST(StringUtilityTest,SplitAndTrimDelimitedString)147 TEST(StringUtilityTest, SplitAndTrimDelimitedString)
148 {
149 using ::testing::ElementsAre;
150 using ::testing::IsEmpty;
151 EXPECT_THAT(splitAndTrimDelimitedString("", ';'), IsEmpty());
152 EXPECT_THAT(splitAndTrimDelimitedString(" \t\n ", ';'), ElementsAre(""));
153 EXPECT_THAT(splitAndTrimDelimitedString("foo", ';'), ElementsAre("foo"));
154 EXPECT_THAT(splitAndTrimDelimitedString(" foo ", ';'), ElementsAre("foo"));
155 EXPECT_THAT(splitAndTrimDelimitedString("foo;bar", ';'), ElementsAre("foo", "bar"));
156 EXPECT_THAT(splitAndTrimDelimitedString(";foo;bar", ';'), ElementsAre("", "foo", "bar"));
157 EXPECT_THAT(splitAndTrimDelimitedString("foo;bar;", ';'), ElementsAre("foo", "bar", ""));
158 EXPECT_THAT(splitAndTrimDelimitedString(";foo;bar;", ';'), ElementsAre("", "foo", "bar", ""));
159 EXPECT_THAT(splitAndTrimDelimitedString("foo;;bar", ';'), ElementsAre("foo", "", "bar"));
160 EXPECT_THAT(splitAndTrimDelimitedString("foo ; bar ", ';'), ElementsAre("foo", "bar"));
161 EXPECT_THAT(splitAndTrimDelimitedString(" ; foo ; bar ", ';'), ElementsAre("", "foo", "bar"));
162 EXPECT_THAT(splitAndTrimDelimitedString(" foo ; bar ; ", ';'), ElementsAre("foo", "bar", ""));
163 EXPECT_THAT(splitAndTrimDelimitedString(" ; foo\n ; bar ; ", ';'),
164 ElementsAre("", "foo", "bar", ""));
165 EXPECT_THAT(splitAndTrimDelimitedString(" foo ; ; \tbar", ';'), ElementsAre("foo", "", "bar"));
166 }
167
TEST(StringUtilityTest,CanCompareCaseInsensitive)168 TEST(StringUtilityTest, CanCompareCaseInsensitive)
169 {
170 EXPECT_TRUE(equalCaseInsensitive("foo", "foo"));
171 EXPECT_FALSE(equalCaseInsensitive("foo", "bar"));
172 EXPECT_TRUE(equalCaseInsensitive("foo", "FOO"));
173 EXPECT_FALSE(equalCaseInsensitive("foo", "foobar"));
174 EXPECT_FALSE(equalCaseInsensitive("foobar", "foo"));
175 }
176
177 /*! \brief
178 * Helper to test that string comparison works with switched input positions.
179 *
180 * \param[in] foo First string to check.
181 * \param[in] bar Second string to check.
182 * \param[in] length Max comparison length to use.
183 * \param[in] expectedResult If we expect the result be a match between the strings or not.
184 */
checkEqualCaseInsensitive(const std::string & foo,const std::string & bar,int length,bool expectedResult)185 void checkEqualCaseInsensitive(const std::string& foo, const std::string& bar, int length, bool expectedResult)
186 {
187 EXPECT_EQ(equalCaseInsensitive(foo, bar, length), expectedResult);
188 EXPECT_EQ(equalCaseInsensitive(bar, foo, length), expectedResult);
189 }
190
TEST(StringUtilityTest,CanCompareCaseInsensitiveInLength)191 TEST(StringUtilityTest, CanCompareCaseInsensitiveInLength)
192 {
193 checkEqualCaseInsensitive("foo", "bar", 0, true);
194 checkEqualCaseInsensitive("foo", "foo", 3, true);
195 checkEqualCaseInsensitive("foo", "bar", 3, false);
196 checkEqualCaseInsensitive("foo", "FOO", 3, true);
197 checkEqualCaseInsensitive("foo", "foobar", 3, true);
198 checkEqualCaseInsensitive("foo", "foobar", 5, false);
199 checkEqualCaseInsensitive("foo", "foobar", 6, false);
200 checkEqualCaseInsensitive("foo", "FooBAR", 3, true);
201 checkEqualCaseInsensitive("foo", "FooBAR", 5, false);
202 checkEqualCaseInsensitive("foo", "FooBAR", 6, false);
203 checkEqualCaseInsensitive("fooo", "foo", 3, true);
204 checkEqualCaseInsensitive("fooo", "foo", 4, false);
205 checkEqualCaseInsensitive("foobar", "foo", 4, false);
206 checkEqualCaseInsensitive("foobar", "foob", 4, true);
207 }
208
209 /********************************************************************
210 * Tests for formatString()
211 */
212
TEST(FormatStringTest,HandlesBasicFormatting)213 TEST(FormatStringTest, HandlesBasicFormatting)
214 {
215 EXPECT_EQ("12 abc", gmx::formatString("%d %s", 12, "abc"));
216 }
217
TEST(FormatStringTest,HandlesLongStrings)218 TEST(FormatStringTest, HandlesLongStrings)
219 {
220 std::string longString = gmx::formatString("%*c%d", 2000, 'x', 10);
221 EXPECT_EQ(2002U, longString.length());
222 EXPECT_EQ("x10", longString.substr(1999));
223 }
224
225 /********************************************************************
226 * Tests for StringFormatter
227 */
228
TEST(StringFormatterTest,HandlesBasicFormatting)229 TEST(StringFormatterTest, HandlesBasicFormatting)
230 {
231 int value = 103;
232 EXPECT_EQ("103", gmx::StringFormatter("%d")(value));
233 EXPECT_EQ("null", gmx::StringFormatter("null")(value));
234 }
235
236 /********************************************************************
237 * Tests for formatAndJoin
238 */
239
TEST(formatAndJoinTest,Works)240 TEST(formatAndJoinTest, Works)
241 {
242 const char* const words[] = { "The", "quick", "brown", "fox" };
243 EXPECT_EQ("The .quick .brown .fox ",
244 gmx::formatAndJoin(gmx::ArrayRef<const char* const>(words), ".",
245 gmx::StringFormatter("%-10s")));
246
247 const int values[] = { 0, 1, 4 };
248 EXPECT_EQ("0,1,4",
249 gmx::formatAndJoin(gmx::ArrayRef<const int>(values), ",", gmx::StringFormatter("%d")));
250 }
251
252 /********************************************************************
253 * Tests for joinStrings
254 */
255
TEST(JoinStringsTest,Works)256 TEST(JoinStringsTest, Works)
257 {
258 const char* const words[] = { "The", "quick", "brown", "fox" };
259 gmx::ArrayRef<const char* const> refToWords(words);
260 EXPECT_EQ("The; quick; brown; fox",
261 gmx::joinStrings(refToWords.begin(), refToWords.end(), "; "));
262 EXPECT_EQ("The-quick-brown-fox", gmx::joinStrings(refToWords, "-"));
263 EXPECT_EQ("The-quick-brown-fox", gmx::joinStrings(words, "-"));
264 }
265
266 /********************************************************************
267 * Tests for replaceAll() and replaceAllWords()
268 */
269
TEST(ReplaceAllTest,HandlesEmptyStrings)270 TEST(ReplaceAllTest, HandlesEmptyStrings)
271 {
272 EXPECT_EQ("", gmx::replaceAll("", "aaa", "bbbb"));
273 EXPECT_EQ("", gmx::replaceAllWords("", "aaa", "bbbb"));
274 }
275
TEST(ReplaceAllTest,HandlesNoMatches)276 TEST(ReplaceAllTest, HandlesNoMatches)
277 {
278 const std::string text("Text with no matches");
279 EXPECT_EQ(text, gmx::replaceAll(text, "aaa", "bbbb"));
280 EXPECT_EQ(text, gmx::replaceAllWords(text, "aaa", "bbbb"));
281 }
282
TEST(ReplaceAllTest,HandlesMatchesAtEnds)283 TEST(ReplaceAllTest, HandlesMatchesAtEnds)
284 {
285 EXPECT_EQ("bbbbtext", gmx::replaceAll("aaatext", "aaa", "bbbb"));
286 EXPECT_EQ("textbbbb", gmx::replaceAll("textaaa", "aaa", "bbbb"));
287 EXPECT_EQ("bbbb text", gmx::replaceAllWords("aaa text", "aaa", "bbbb"));
288 EXPECT_EQ("text bbbb", gmx::replaceAllWords("text aaa", "aaa", "bbbb"));
289 }
290
TEST(ReplaceAllTest,HandlesMultipleMatches)291 TEST(ReplaceAllTest, HandlesMultipleMatches)
292 {
293 const std::string text("Text aaa with multiple aaa matches");
294 EXPECT_EQ("Text bbbb with multiple bbbb matches", gmx::replaceAll(text, "aaa", "bbbb"));
295 EXPECT_EQ("Text bbbb with multiple bbbb matches", gmx::replaceAllWords(text, "aaa", "bbbb"));
296 }
297
TEST(ReplaceAllTest,HandlesWordBoundaries)298 TEST(ReplaceAllTest, HandlesWordBoundaries)
299 {
300 const std::string text("Text aaax with one word aaa match");
301 EXPECT_EQ("Text aaax with one word bbbb match", gmx::replaceAllWords(text, "aaa", "bbbb"));
302 }
303
TEST(ReplaceAllTest,HandlesPossibleRecursiveMatches)304 TEST(ReplaceAllTest, HandlesPossibleRecursiveMatches)
305 {
306 const std::string text("Text with recursive aaabbbbbb matches");
307 EXPECT_EQ("Text with recursive aaaaaabbb matches", gmx::replaceAll(text, "aaabbb", "aaaaaa"));
308 }
309
310 /********************************************************************
311 * Tests for TextLineWrapper
312 */
313
314 //! Simple test string for wrapping.
315 const char g_wrapText[] = "A quick brown fox jumps over the lazy dog";
316 //! Test string for wrapping with embedded line breaks.
317 const char g_wrapText2[] = "A quick brown fox jumps\nover the lazy dog";
318 //! Test string for wrapping with embedded line breaks and an empty line.
319 const char g_wrapText3[] = "A quick brown fox jumps\n\nover the lazy dog";
320 //! Test string for wrapping with a long word.
321 const char g_wrapTextLongWord[] =
322 "A quick brown fox jumps awordthatoverflowsaline over the lazy dog";
323 //! Test string for wrapping with extra whitespace.
324 const char g_wrapTextWhitespace[] = " A quick brown fox jumps \n over the lazy dog";
325
326 //! Test fixture for gmx::TextLineWrapper.
327 typedef gmx::test::StringTestBase TextLineWrapperTest;
328
TEST_F(TextLineWrapperTest,HandlesEmptyStrings)329 TEST_F(TextLineWrapperTest, HandlesEmptyStrings)
330 {
331 gmx::TextLineWrapper wrapper;
332
333 EXPECT_EQ("", wrapper.wrapToString(""));
334 EXPECT_EQ("", wrapper.wrapToString(" "));
335 EXPECT_TRUE(wrapper.wrapToVector("").empty());
336 {
337 std::vector<std::string> wrapped(wrapper.wrapToVector(" "));
338 ASSERT_EQ(1U, wrapped.size());
339 EXPECT_EQ("", wrapped[0]);
340 }
341 }
342
TEST_F(TextLineWrapperTest,HandlesTrailingWhitespace)343 TEST_F(TextLineWrapperTest, HandlesTrailingWhitespace)
344 {
345 gmx::TextLineWrapper wrapper;
346
347 EXPECT_EQ("line", wrapper.wrapToString("line "));
348 EXPECT_EQ("line\n", wrapper.wrapToString("line \n"));
349
350 wrapper.settings().setKeepFinalSpaces(true);
351 EXPECT_EQ("line ", wrapper.wrapToString("line "));
352 EXPECT_EQ("line \n", wrapper.wrapToString("line \n"));
353 }
354
TEST_F(TextLineWrapperTest,HandlesTrailingNewlines)355 TEST_F(TextLineWrapperTest, HandlesTrailingNewlines)
356 {
357 gmx::TextLineWrapper wrapper;
358
359 EXPECT_EQ("line", wrapper.wrapToString("line"));
360 EXPECT_EQ("line\n", wrapper.wrapToString("line\n"));
361 EXPECT_EQ("line\n\n", wrapper.wrapToString("line\n\n"));
362 EXPECT_EQ("\n", wrapper.wrapToString("\n"));
363 EXPECT_EQ("\n\n", wrapper.wrapToString("\n\n"));
364 {
365 std::vector<std::string> wrapped(wrapper.wrapToVector("line"));
366 ASSERT_EQ(1U, wrapped.size());
367 EXPECT_EQ("line", wrapped[0]);
368 }
369 {
370 std::vector<std::string> wrapped(wrapper.wrapToVector("line\n"));
371 ASSERT_EQ(1U, wrapped.size());
372 EXPECT_EQ("line", wrapped[0]);
373 }
374 {
375 std::vector<std::string> wrapped(wrapper.wrapToVector("line\n\n"));
376 ASSERT_EQ(2U, wrapped.size());
377 EXPECT_EQ("line", wrapped[0]);
378 EXPECT_EQ("", wrapped[1]);
379 }
380 {
381 std::vector<std::string> wrapped(wrapper.wrapToVector("\n"));
382 ASSERT_EQ(1U, wrapped.size());
383 EXPECT_EQ("", wrapped[0]);
384 }
385 {
386 std::vector<std::string> wrapped(wrapper.wrapToVector("\n\n"));
387 ASSERT_EQ(2U, wrapped.size());
388 EXPECT_EQ("", wrapped[0]);
389 EXPECT_EQ("", wrapped[1]);
390 }
391 }
392
TEST_F(TextLineWrapperTest,WrapsCorrectly)393 TEST_F(TextLineWrapperTest, WrapsCorrectly)
394 {
395 gmx::TextLineWrapper wrapper;
396
397 wrapper.settings().setLineLength(10);
398 checkText(wrapper.wrapToString(g_wrapText), "WrappedAt10");
399 std::vector<std::string> wrapped(wrapper.wrapToVector(g_wrapText));
400 checker().checkSequence(wrapped.begin(), wrapped.end(), "WrappedToVector");
401 wrapper.settings().setLineLength(13);
402 checkText(wrapper.wrapToString(g_wrapText), "WrappedAt13");
403 wrapper.settings().setLineLength(14);
404 checkText(wrapper.wrapToString(g_wrapText), "WrappedAt14");
405 checkText(wrapper.wrapToString(g_wrapTextLongWord), "WrappedWithLongWord");
406 }
407
TEST_F(TextLineWrapperTest,WrapsCorrectlyWithExistingBreaks)408 TEST_F(TextLineWrapperTest, WrapsCorrectlyWithExistingBreaks)
409 {
410 gmx::TextLineWrapper wrapper;
411
412 checkText(wrapper.wrapToString(g_wrapText2), "WrappedWithNoLimit");
413 wrapper.settings().setLineLength(10);
414 checkText(wrapper.wrapToString(g_wrapText2), "WrappedAt10");
415 wrapper.settings().setLineLength(14);
416 checkText(wrapper.wrapToString(g_wrapText2), "WrappedAt14");
417 }
418
TEST_F(TextLineWrapperTest,HandlesIndent)419 TEST_F(TextLineWrapperTest, HandlesIndent)
420 {
421 gmx::TextLineWrapper wrapper;
422 wrapper.settings().setIndent(2);
423
424 checkText(wrapper.wrapToString(g_wrapText2), "WrappedWithNoLimit");
425 wrapper.settings().setLineLength(16);
426 checkText(wrapper.wrapToString(g_wrapText2), "WrappedAt14");
427 }
428
TEST_F(TextLineWrapperTest,HandlesIndentWithEmptyLines)429 TEST_F(TextLineWrapperTest, HandlesIndentWithEmptyLines)
430 {
431 gmx::TextLineWrapper wrapper;
432 wrapper.settings().setIndent(2);
433
434 checkText(wrapper.wrapToString(g_wrapText3), "WrappedWithNoLimit");
435 wrapper.settings().setLineLength(16);
436 checkText(wrapper.wrapToString(g_wrapText3), "WrappedAt14");
437 }
438
TEST_F(TextLineWrapperTest,HandlesHangingIndent)439 TEST_F(TextLineWrapperTest, HandlesHangingIndent)
440 {
441 gmx::TextLineWrapper wrapper;
442 wrapper.settings().setFirstLineIndent(2);
443 wrapper.settings().setIndent(4);
444
445 checkText(wrapper.wrapToString(g_wrapText2), "WrappedWithNoLimit");
446 wrapper.settings().setLineLength(16);
447 checkText(wrapper.wrapToString(g_wrapText2), "WrappedAt14/12");
448 }
449
TEST_F(TextLineWrapperTest,HandlesContinuationCharacter)450 TEST_F(TextLineWrapperTest, HandlesContinuationCharacter)
451 {
452 gmx::TextLineWrapper wrapper;
453 wrapper.settings().setFirstLineIndent(2);
454 wrapper.settings().setIndent(4);
455 wrapper.settings().setContinuationChar('\\');
456
457 wrapper.settings().setLineLength(16);
458 checkText(wrapper.wrapToString(g_wrapText2), "WrappedAt14/12");
459 }
460
TEST_F(TextLineWrapperTest,WrapsCorrectlyWithExtraWhitespace)461 TEST_F(TextLineWrapperTest, WrapsCorrectlyWithExtraWhitespace)
462 {
463 gmx::TextLineWrapper wrapper;
464 wrapper.settings().setLineLength(14);
465
466 checkText(wrapper.wrapToString(g_wrapTextWhitespace), "WrappedAt14");
467
468 wrapper.settings().setKeepFinalSpaces(true);
469 checkText(wrapper.wrapToString(g_wrapTextWhitespace), "WrappedAt14WithTrailingWhitespace");
470 }
471
472 } // namespace
473 } // namespace test
474 } // namespace gmx
475